ci: gofmt with go 1.19
Go 1.19 introduces various updates to gofmt.
This commit is contained in:
parent
66c8567a27
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49 changed files with 685 additions and 647 deletions
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@ -5,7 +5,7 @@
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/*
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/*
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Package addrmgr implements concurrency safe Bitcoin address manager.
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Package addrmgr implements concurrency safe Bitcoin address manager.
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Address Manager Overview
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# Address Manager Overview
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In order maintain the peer-to-peer Bitcoin network, there needs to be a source
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In order maintain the peer-to-peer Bitcoin network, there needs to be a source
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of addresses to connect to as nodes come and go. The Bitcoin protocol provides
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of addresses to connect to as nodes come and go. The Bitcoin protocol provides
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@ -37,6 +37,7 @@ const (
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// from the block being located.
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// from the block being located.
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//
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//
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// For example, assume a block chain with a side chain as depicted below:
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// For example, assume a block chain with a side chain as depicted below:
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//
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// genesis -> 1 -> 2 -> ... -> 15 -> 16 -> 17 -> 18
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// genesis -> 1 -> 2 -> ... -> 15 -> 16 -> 17 -> 18
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// \-> 16a -> 17a
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// \-> 16a -> 17a
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//
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//
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@ -488,7 +489,7 @@ func (b *BlockChain) calcSequenceLock(node *blockNode, tx *btcutil.Tx, utxoView
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// LockTimeToSequence converts the passed relative locktime to a sequence
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// LockTimeToSequence converts the passed relative locktime to a sequence
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// number in accordance to BIP-68.
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// number in accordance to BIP-68.
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// See: https://github.com/bitcoin/bips/blob/master/bip-0068.mediawiki
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// See: https://github.com/bitcoin/bips/blob/master/bip-0068.mediawiki
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// * (Compatibility)
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// - (Compatibility)
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func LockTimeToSequence(isSeconds bool, locktime uint32) uint32 {
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func LockTimeToSequence(isSeconds bool, locktime uint32) uint32 {
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// If we're expressing the relative lock time in blocks, then the
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// If we're expressing the relative lock time in blocks, then the
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// corresponding sequence number is simply the desired input age.
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// corresponding sequence number is simply the desired input age.
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@ -36,10 +36,12 @@ func fastLog2Floor(n uint32) uint8 {
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// for comparing chains.
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// for comparing chains.
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//
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//
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// For example, assume a block chain with a side chain as depicted below:
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// For example, assume a block chain with a side chain as depicted below:
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//
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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// \-> 4a -> 5a -> 6a
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// \-> 4a -> 5a -> 6a
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//
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//
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// The chain view for the branch ending in 6a consists of:
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// The chain view for the branch ending in 6a consists of:
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//
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// genesis -> 1 -> 2 -> 3 -> 4a -> 5a -> 6a
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// genesis -> 1 -> 2 -> 3 -> 4a -> 5a -> 6a
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type chainView struct {
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type chainView struct {
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mtx sync.Mutex
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mtx sync.Mutex
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@ -258,11 +260,13 @@ func (c *chainView) next(node *blockNode) *blockNode {
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// view.
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// view.
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//
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//
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// For example, assume a block chain with a side chain as depicted below:
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// For example, assume a block chain with a side chain as depicted below:
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//
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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// \-> 4a -> 5a -> 6a
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// \-> 4a -> 5a -> 6a
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//
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//
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// Further, assume the view is for the longer chain depicted above. That is to
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// Further, assume the view is for the longer chain depicted above. That is to
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// say it consists of:
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// say it consists of:
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//
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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// genesis -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8
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//
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//
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// Invoking this function with block node 5 would return block node 6 while
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// Invoking this function with block node 5 would return block node 6 while
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@ -321,11 +325,13 @@ func (c *chainView) findFork(node *blockNode) *blockNode {
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// the chain view. It will return nil if there is no common block.
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// the chain view. It will return nil if there is no common block.
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//
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//
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// For example, assume a block chain with a side chain as depicted below:
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// For example, assume a block chain with a side chain as depicted below:
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//
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// genesis -> 1 -> 2 -> ... -> 5 -> 6 -> 7 -> 8
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// genesis -> 1 -> 2 -> ... -> 5 -> 6 -> 7 -> 8
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// \-> 6a -> 7a
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// \-> 6a -> 7a
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//
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//
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// Further, assume the view is for the longer chain depicted above. That is to
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// Further, assume the view is for the longer chain depicted above. That is to
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// say it consists of:
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// say it consists of:
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//
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// genesis -> 1 -> 2 -> ... -> 5 -> 6 -> 7 -> 8.
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// genesis -> 1 -> 2 -> ... -> 5 -> 6 -> 7 -> 8.
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//
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//
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// Invoking this function with block node 7a would return block node 5 while
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// Invoking this function with block node 7a would return block node 5 while
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@ -42,9 +42,11 @@ func HashToBig(hash *chainhash.Hash) *big.Int {
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// Like IEEE754 floating point, there are three basic components: the sign,
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// Like IEEE754 floating point, there are three basic components: the sign,
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// the exponent, and the mantissa. They are broken out as follows:
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// the exponent, and the mantissa. They are broken out as follows:
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//
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//
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// * the most significant 8 bits represent the unsigned base 256 exponent
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// - the most significant 8 bits represent the unsigned base 256 exponent
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// * bit 23 (the 24th bit) represents the sign bit
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//
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// * the least significant 23 bits represent the mantissa
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// - bit 23 (the 24th bit) represents the sign bit
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//
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// - the least significant 23 bits represent the mantissa
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//
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//
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// -------------------------------------------------
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// -------------------------------------------------
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// | Exponent | Sign | Mantissa |
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// | Exponent | Sign | Mantissa |
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@ -53,6 +55,7 @@ func HashToBig(hash *chainhash.Hash) *big.Int {
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// -------------------------------------------------
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// -------------------------------------------------
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//
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//
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// The formula to calculate N is:
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// The formula to calculate N is:
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//
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// N = (-1^sign) * mantissa * 256^(exponent-3)
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// N = (-1^sign) * mantissa * 256^(exponent-3)
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//
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//
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// This compact form is only used in bitcoin to encode unsigned 256-bit numbers
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// This compact form is only used in bitcoin to encode unsigned 256-bit numbers
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@ -26,7 +26,7 @@ caller a high level of flexibility in how they want to react to certain events
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such as orphan blocks which need their parents requested and newly connected
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such as orphan blocks which need their parents requested and newly connected
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main chain blocks which might result in wallet updates.
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main chain blocks which might result in wallet updates.
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Bitcoin Chain Processing Overview
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# Bitcoin Chain Processing Overview
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Before a block is allowed into the block chain, it must go through an intensive
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Before a block is allowed into the block chain, it must go through an intensive
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series of validation rules. The following list serves as a general outline of
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series of validation rules. The following list serves as a general outline of
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@ -61,7 +61,7 @@ is by no means exhaustive:
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coins
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coins
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- Insert the block into the block database
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- Insert the block into the block database
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Errors
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# Errors
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Errors returned by this package are either the raw errors provided by underlying
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Errors returned by this package are either the raw errors provided by underlying
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calls or of type blockchain.RuleError. This allows the caller to differentiate
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calls or of type blockchain.RuleError. This allows the caller to differentiate
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@ -70,7 +70,7 @@ violations through type assertions. In addition, callers can programmatically
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determine the specific rule violation by examining the ErrorCode field of the
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determine the specific rule violation by examining the ErrorCode field of the
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type asserted blockchain.RuleError.
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type asserted blockchain.RuleError.
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Bitcoin Improvement Proposals
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# Bitcoin Improvement Proposals
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This package includes spec changes outlined by the following BIPs:
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This package includes spec changes outlined by the following BIPs:
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@ -27,6 +27,7 @@ type blockProgressLogger struct {
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// newBlockProgressLogger returns a new block progress logger.
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// newBlockProgressLogger returns a new block progress logger.
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// The progress message is templated as follows:
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// The progress message is templated as follows:
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//
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// {progressAction} {numProcessed} {blocks|block} in the last {timePeriod}
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// {progressAction} {numProcessed} {blocks|block} in the last {timePeriod}
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// ({numTxs}, height {lastBlockHeight}, {lastBlockTimeStamp})
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// ({numTxs}, height {lastBlockHeight}, {lastBlockTimeStamp})
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func newBlockProgressLogger(progressMessage string, logger btclog.Logger) *blockProgressLogger {
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func newBlockProgressLogger(progressMessage string, logger btclog.Logger) *blockProgressLogger {
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@ -244,6 +244,7 @@ func determineMainChainBlocks(blocksMap map[chainhash.Hash]*blockChainContext, t
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// compressed script []byte variable
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// compressed script []byte variable
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//
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//
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// The serialized header code format is:
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// The serialized header code format is:
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//
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// bit 0 - containing transaction is a coinbase
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// bit 0 - containing transaction is a coinbase
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// bit 1 - output zero is unspent
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// bit 1 - output zero is unspent
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// bit 2 - output one is unspent
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// bit 2 - output one is unspent
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@ -527,7 +527,7 @@ type baseMultTest struct {
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x, y string
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x, y string
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}
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}
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//TODO: add more test vectors
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// TODO: add more test vectors
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var s256BaseMultTests = []baseMultTest{
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var s256BaseMultTests = []baseMultTest{
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{
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{
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"AA5E28D6A97A2479A65527F7290311A3624D4CC0FA1578598EE3C2613BF99522",
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"AA5E28D6A97A2479A65527F7290311A3624D4CC0FA1578598EE3C2613BF99522",
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@ -556,7 +556,7 @@ var s256BaseMultTests = []baseMultTest{
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},
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},
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}
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}
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//TODO: test different curves as well?
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// TODO: test different curves as well?
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func TestBaseMult(t *testing.T) {
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func TestBaseMult(t *testing.T) {
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s256 := S256()
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s256 := S256()
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for i, e := range s256BaseMultTests {
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for i, e := range s256BaseMultTests {
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@ -125,6 +125,7 @@ var (
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// the arithmetic needed for elliptic curve operations.
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// the arithmetic needed for elliptic curve operations.
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//
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//
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// The following depicts the internal representation:
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// The following depicts the internal representation:
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//
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// -----------------------------------------------------------------
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// -----------------------------------------------------------------
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// | n[9] | n[8] | ... | n[0] |
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// | n[9] | n[8] | ... | n[0] |
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// | 32 bits available | 32 bits available | ... | 32 bits available |
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// | 32 bits available | 32 bits available | ... | 32 bits available |
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// -----------------------------------------------------------------
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// -----------------------------------------------------------------
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//
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//
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// For example, consider the number 2^49 + 1. It would be represented as:
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// For example, consider the number 2^49 + 1. It would be represented as:
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//
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// n[0] = 1
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// n[0] = 1
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// n[1] = 2^23
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// n[1] = 2^23
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// n[2..9] = 0
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// n[2..9] = 0
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//
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//
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// The full 256-bit value is then calculated by looping i from 9..0 and
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// The full 256-bit value is then calculated by looping i from 9..0 and
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// doing sum(n[i] * 2^(26i)) like so:
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// doing sum(n[i] * 2^(26i)) like so:
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//
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// n[9] * 2^(26*9) = 0 * 2^234 = 0
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// n[9] * 2^(26*9) = 0 * 2^234 = 0
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// n[8] * 2^(26*8) = 0 * 2^208 = 0
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// n[8] * 2^(26*8) = 0 * 2^208 = 0
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// ...
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// ...
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@ -5,7 +5,7 @@
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/*
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/*
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Package btcjson provides primitives for working with the bitcoin JSON-RPC API.
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Package btcjson provides primitives for working with the bitcoin JSON-RPC API.
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Overview
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# Overview
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When communicating via the JSON-RPC protocol, all of the commands need to be
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When communicating via the JSON-RPC protocol, all of the commands need to be
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marshalled to and from the the wire in the appropriate format. This package
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marshalled to and from the the wire in the appropriate format. This package
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@ -14,7 +14,7 @@ provides data structures and primitives to ease this process.
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In addition, it also provides some additional features such as custom command
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In addition, it also provides some additional features such as custom command
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registration, command categorization, and reflection-based help generation.
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registration, command categorization, and reflection-based help generation.
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JSON-RPC Protocol Overview
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# JSON-RPC Protocol Overview
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|
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This information is not necessary in order to use this package, but it does
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This information is not necessary in order to use this package, but it does
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provide some intuition into what the marshalling and unmarshalling that is
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provide some intuition into what the marshalling and unmarshalling that is
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@ -47,7 +47,7 @@ with it) doesn't always follow the spec and will sometimes return an error
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string in the result field with a null error for certain commands. However,
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string in the result field with a null error for certain commands. However,
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for the most part, the error field will be set as described on failure.
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for the most part, the error field will be set as described on failure.
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Marshalling and Unmarshalling
|
# Marshalling and Unmarshalling
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|
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Based upon the discussion above, it should be easy to see how the types of this
|
Based upon the discussion above, it should be easy to see how the types of this
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package map into the required parts of the protocol
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package map into the required parts of the protocol
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@ -63,8 +63,8 @@ MarshalResponse functions are provided. They return the raw bytes ready to be
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sent across the wire.
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sent across the wire.
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|
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Unmarshalling a received Request object is a two step process:
|
Unmarshalling a received Request object is a two step process:
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1) Unmarshal the raw bytes into a Request struct instance via json.Unmarshal
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1. Unmarshal the raw bytes into a Request struct instance via json.Unmarshal
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2) Use UnmarshalCmd on the Result field of the unmarshalled Request to create
|
2. Use UnmarshalCmd on the Result field of the unmarshalled Request to create
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a concrete command or notification instance with all struct fields set
|
a concrete command or notification instance with all struct fields set
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accordingly
|
accordingly
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|
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@ -72,14 +72,14 @@ This approach is used since it provides the caller with access to the additional
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fields in the request that are not part of the command such as the ID.
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fields in the request that are not part of the command such as the ID.
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|
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Unmarshalling a received Response object is also a two step process:
|
Unmarshalling a received Response object is also a two step process:
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1) Unmarhsal the raw bytes into a Response struct instance via json.Unmarshal
|
1. Unmarhsal the raw bytes into a Response struct instance via json.Unmarshal
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2) Depending on the ID, unmarshal the Result field of the unmarshalled
|
2. Depending on the ID, unmarshal the Result field of the unmarshalled
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Response to create a concrete type instance
|
Response to create a concrete type instance
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|
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As above, this approach is used since it provides the caller with access to the
|
As above, this approach is used since it provides the caller with access to the
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fields in the response such as the ID and Error.
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fields in the response such as the ID and Error.
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Command Creation
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# Command Creation
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|
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This package provides two approaches for creating a new command. This first,
|
This package provides two approaches for creating a new command. This first,
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and preferred, method is to use one of the New<Foo>Cmd functions. This allows
|
and preferred, method is to use one of the New<Foo>Cmd functions. This allows
|
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|
@ -93,7 +93,7 @@ obviously, run-time which means any mistakes won't be found until the code is
|
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actually executed. However, it is quite useful for user-supplied commands
|
actually executed. However, it is quite useful for user-supplied commands
|
||||||
that are intentionally dynamic.
|
that are intentionally dynamic.
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|
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Custom Command Registration
|
# Custom Command Registration
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|
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The command handling of this package is built around the concept of registered
|
The command handling of this package is built around the concept of registered
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commands. This is true for the wide variety of commands already provided by the
|
commands. This is true for the wide variety of commands already provided by the
|
||||||
|
@ -104,7 +104,7 @@ function for this purpose.
|
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A list of all registered methods can be obtained with the RegisteredCmdMethods
|
A list of all registered methods can be obtained with the RegisteredCmdMethods
|
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function.
|
function.
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|
|
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Command Inspection
|
# Command Inspection
|
||||||
|
|
||||||
All registered commands are registered with flags that identify information such
|
All registered commands are registered with flags that identify information such
|
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as whether the command applies to a chain server, wallet server, or is a
|
as whether the command applies to a chain server, wallet server, or is a
|
||||||
|
@ -112,7 +112,7 @@ notification along with the method name to use. These flags can be obtained
|
||||||
with the MethodUsageFlags flags, and the method can be obtained with the
|
with the MethodUsageFlags flags, and the method can be obtained with the
|
||||||
CmdMethod function.
|
CmdMethod function.
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|
|
||||||
Help Generation
|
# Help Generation
|
||||||
|
|
||||||
To facilitate providing consistent help to users of the RPC server, this package
|
To facilitate providing consistent help to users of the RPC server, this package
|
||||||
exposes the GenerateHelp and function which uses reflection on registered
|
exposes the GenerateHelp and function which uses reflection on registered
|
||||||
|
@ -122,7 +122,7 @@ generate the final help text.
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In addition, the MethodUsageText function is provided to generate consistent
|
In addition, the MethodUsageText function is provided to generate consistent
|
||||||
one-line usage for registered commands and notifications using reflection.
|
one-line usage for registered commands and notifications using reflection.
|
||||||
|
|
||||||
Errors
|
# Errors
|
||||||
|
|
||||||
There are 2 distinct type of errors supported by this package:
|
There are 2 distinct type of errors supported by this package:
|
||||||
|
|
||||||
|
|
|
@ -476,6 +476,7 @@ func isValidResultType(kind reflect.Kind) bool {
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||||||
// an error will use the key in place of the description.
|
// an error will use the key in place of the description.
|
||||||
//
|
//
|
||||||
// The following outlines the required keys:
|
// The following outlines the required keys:
|
||||||
|
//
|
||||||
// "<method>--synopsis" Synopsis for the command
|
// "<method>--synopsis" Synopsis for the command
|
||||||
// "<method>-<lowerfieldname>" Description for each command argument
|
// "<method>-<lowerfieldname>" Description for each command argument
|
||||||
// "<typename>-<lowerfieldname>" Description for each object field
|
// "<typename>-<lowerfieldname>" Description for each object field
|
||||||
|
@ -492,6 +493,7 @@ func isValidResultType(kind reflect.Kind) bool {
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||||||
// For example, consider the 'help' command itself. There are two possible
|
// For example, consider the 'help' command itself. There are two possible
|
||||||
// returns depending on the provided parameters. So, the help would be
|
// returns depending on the provided parameters. So, the help would be
|
||||||
// generated by calling the function as follows:
|
// generated by calling the function as follows:
|
||||||
|
//
|
||||||
// GenerateHelp("help", descs, (*string)(nil), (*string)(nil)).
|
// GenerateHelp("help", descs, (*string)(nil), (*string)(nil)).
|
||||||
//
|
//
|
||||||
// The following keys would then be required in the provided descriptions map:
|
// The following keys would then be required in the provided descriptions map:
|
||||||
|
|
|
@ -833,6 +833,7 @@ func (s *ScriptPubKey) UnmarshalJSON(data []byte) error {
|
||||||
//
|
//
|
||||||
// Descriptors are typically ranged when specified in the form of generic HD
|
// Descriptors are typically ranged when specified in the form of generic HD
|
||||||
// chain paths.
|
// chain paths.
|
||||||
|
//
|
||||||
// Example of a ranged descriptor: pkh(tpub.../*)
|
// Example of a ranged descriptor: pkh(tpub.../*)
|
||||||
//
|
//
|
||||||
// The value can be an int to specify the end of the range, or the range
|
// The value can be an int to specify the end of the range, or the range
|
||||||
|
|
|
@ -794,6 +794,7 @@ func IsBech32SegwitPrefix(prefix string) bool {
|
||||||
// ErrInvalidHDKeyID error will be returned.
|
// ErrInvalidHDKeyID error will be returned.
|
||||||
//
|
//
|
||||||
// Reference:
|
// Reference:
|
||||||
|
//
|
||||||
// SLIP-0132 : Registered HD version bytes for BIP-0032
|
// SLIP-0132 : Registered HD version bytes for BIP-0032
|
||||||
// https://github.com/satoshilabs/slips/blob/master/slip-0132.md
|
// https://github.com/satoshilabs/slips/blob/master/slip-0132.md
|
||||||
func RegisterHDKeyID(hdPublicKeyID []byte, hdPrivateKeyID []byte) error {
|
func RegisterHDKeyID(hdPublicKeyID []byte, hdPrivateKeyID []byte) error {
|
||||||
|
|
|
@ -26,6 +26,7 @@ type claimProgressLogger struct {
|
||||||
|
|
||||||
// newClaimProgressLogger returns a new name progress logger.
|
// newClaimProgressLogger returns a new name progress logger.
|
||||||
// The progress message is templated as follows:
|
// The progress message is templated as follows:
|
||||||
|
//
|
||||||
// {progressAction} {numProcessed} {names|name} in the last {timePeriod} (total {totalProcessed})
|
// {progressAction} {numProcessed} {names|name} in the last {timePeriod} (total {totalProcessed})
|
||||||
func newClaimProgressLogger(progressMessage string, logger btclog.Logger) *claimProgressLogger {
|
func newClaimProgressLogger(progressMessage string, logger btclog.Logger) *claimProgressLogger {
|
||||||
return &claimProgressLogger{
|
return &claimProgressLogger{
|
||||||
|
|
|
@ -17,6 +17,7 @@ func newVertex(hash *chainhash.Hash) *vertex {
|
||||||
// TODO: more professional to use msgpack here?
|
// TODO: more professional to use msgpack here?
|
||||||
|
|
||||||
// nbuf decodes the on-disk format of a node, which has the following form:
|
// nbuf decodes the on-disk format of a node, which has the following form:
|
||||||
|
//
|
||||||
// ch(1B) hash(32B)
|
// ch(1B) hash(32B)
|
||||||
// ...
|
// ...
|
||||||
// ch(1B) hash(32B)
|
// ch(1B) hash(32B)
|
||||||
|
|
|
@ -175,10 +175,10 @@ func cleanAndExpandPath(path string) string {
|
||||||
// line options.
|
// line options.
|
||||||
//
|
//
|
||||||
// The configuration proceeds as follows:
|
// The configuration proceeds as follows:
|
||||||
// 1) Start with a default config with sane settings
|
// 1. Start with a default config with sane settings
|
||||||
// 2) Pre-parse the command line to check for an alternative config file
|
// 2. Pre-parse the command line to check for an alternative config file
|
||||||
// 3) Load configuration file overwriting defaults with any specified options
|
// 3. Load configuration file overwriting defaults with any specified options
|
||||||
// 4) Parse CLI options and overwrite/add any specified options
|
// 4. Parse CLI options and overwrite/add any specified options
|
||||||
//
|
//
|
||||||
// The above results in functioning properly without any config settings
|
// The above results in functioning properly without any config settings
|
||||||
// while still allowing the user to override settings with config files and
|
// while still allowing the user to override settings with config files and
|
||||||
|
|
|
@ -409,10 +409,10 @@ func newConfigParser(cfg *config, so *serviceOptions, options flags.Options) *fl
|
||||||
// line options.
|
// line options.
|
||||||
//
|
//
|
||||||
// The configuration proceeds as follows:
|
// The configuration proceeds as follows:
|
||||||
// 1) Start with a default config with sane settings
|
// 1. Start with a default config with sane settings
|
||||||
// 2) Pre-parse the command line to check for an alternative config file
|
// 2. Pre-parse the command line to check for an alternative config file
|
||||||
// 3) Load configuration file overwriting defaults with any specified options
|
// 3. Load configuration file overwriting defaults with any specified options
|
||||||
// 4) Parse CLI options and overwrite/add any specified options
|
// 4. Parse CLI options and overwrite/add any specified options
|
||||||
//
|
//
|
||||||
// The above results in lbcd functioning properly without any config settings
|
// The above results in lbcd functioning properly without any config settings
|
||||||
// while still allowing the user to override settings with config files and
|
// while still allowing the user to override settings with config files and
|
||||||
|
|
|
@ -20,7 +20,6 @@ var (
|
||||||
// parameters which are command-line only. These fields are copied line-by-line
|
// parameters which are command-line only. These fields are copied line-by-line
|
||||||
// from "config" struct in "config.go", and the field names, types, and tags must
|
// from "config" struct in "config.go", and the field names, types, and tags must
|
||||||
// match for the test to work.
|
// match for the test to work.
|
||||||
//
|
|
||||||
type configCmdLineOnly struct {
|
type configCmdLineOnly struct {
|
||||||
ConfigFile string `short:"C" long:"configfile" description:"Path to configuration file"`
|
ConfigFile string `short:"C" long:"configfile" description:"Path to configuration file"`
|
||||||
DbType string `long:"dbtype" description:"Database backend to use for the Block Chain"`
|
DbType string `long:"dbtype" description:"Database backend to use for the Block Chain"`
|
||||||
|
|
|
@ -5,7 +5,7 @@
|
||||||
/*
|
/*
|
||||||
Package connmgr implements a generic Bitcoin network connection manager.
|
Package connmgr implements a generic Bitcoin network connection manager.
|
||||||
|
|
||||||
Connection Manager Overview
|
# Connection Manager Overview
|
||||||
|
|
||||||
Connection Manager handles all the general connection concerns such as
|
Connection Manager handles all the general connection concerns such as
|
||||||
maintaining a set number of outbound connections, sourcing peers, banning,
|
maintaining a set number of outbound connections, sourcing peers, banning,
|
||||||
|
|
|
@ -5,7 +5,7 @@
|
||||||
/*
|
/*
|
||||||
Package database provides a block and metadata storage database.
|
Package database provides a block and metadata storage database.
|
||||||
|
|
||||||
Overview
|
# Overview
|
||||||
|
|
||||||
As of Feb 2016, there are over 400,000 blocks in the Bitcoin block chain and
|
As of Feb 2016, there are over 400,000 blocks in the Bitcoin block chain and
|
||||||
and over 112 million transactions (which turns out to be over 60GB of data).
|
and over 112 million transactions (which turns out to be over 60GB of data).
|
||||||
|
@ -26,7 +26,7 @@ A quick overview of the features database provides are as follows:
|
||||||
- Supports registration of backend databases
|
- Supports registration of backend databases
|
||||||
- Comprehensive test coverage
|
- Comprehensive test coverage
|
||||||
|
|
||||||
Database
|
# Database
|
||||||
|
|
||||||
The main entry point is the DB interface. It exposes functionality for
|
The main entry point is the DB interface. It exposes functionality for
|
||||||
transactional-based access and storage of metadata and block data. It is
|
transactional-based access and storage of metadata and block data. It is
|
||||||
|
@ -43,14 +43,14 @@ The Begin function provides an unmanaged transaction while the View and Update
|
||||||
functions provide a managed transaction. These are described in more detail
|
functions provide a managed transaction. These are described in more detail
|
||||||
below.
|
below.
|
||||||
|
|
||||||
Transactions
|
# Transactions
|
||||||
|
|
||||||
The Tx interface provides facilities for rolling back or committing changes that
|
The Tx interface provides facilities for rolling back or committing changes that
|
||||||
took place while the transaction was active. It also provides the root metadata
|
took place while the transaction was active. It also provides the root metadata
|
||||||
bucket under which all keys, values, and nested buckets are stored. A
|
bucket under which all keys, values, and nested buckets are stored. A
|
||||||
transaction can either be read-only or read-write and managed or unmanaged.
|
transaction can either be read-only or read-write and managed or unmanaged.
|
||||||
|
|
||||||
Managed versus Unmanaged Transactions
|
# Managed versus Unmanaged Transactions
|
||||||
|
|
||||||
A managed transaction is one where the caller provides a function to execute
|
A managed transaction is one where the caller provides a function to execute
|
||||||
within the context of the transaction and the commit or rollback is handled
|
within the context of the transaction and the commit or rollback is handled
|
||||||
|
@ -63,7 +63,7 @@ call Commit or Rollback when they are finished with it. Leaving transactions
|
||||||
open for long periods of time can have several adverse effects, so it is
|
open for long periods of time can have several adverse effects, so it is
|
||||||
recommended that managed transactions are used instead.
|
recommended that managed transactions are used instead.
|
||||||
|
|
||||||
Buckets
|
# Buckets
|
||||||
|
|
||||||
The Bucket interface provides the ability to manipulate key/value pairs and
|
The Bucket interface provides the ability to manipulate key/value pairs and
|
||||||
nested buckets as well as iterate through them.
|
nested buckets as well as iterate through them.
|
||||||
|
@ -73,7 +73,7 @@ CreateBucket, CreateBucketIfNotExists, and DeleteBucket functions work with
|
||||||
buckets. The ForEach function allows the caller to provide a function to be
|
buckets. The ForEach function allows the caller to provide a function to be
|
||||||
called with each key/value pair and nested bucket in the current bucket.
|
called with each key/value pair and nested bucket in the current bucket.
|
||||||
|
|
||||||
Metadata Bucket
|
# Metadata Bucket
|
||||||
|
|
||||||
As discussed above, all of the functions which are used to manipulate key/value
|
As discussed above, all of the functions which are used to manipulate key/value
|
||||||
pairs and nested buckets exist on the Bucket interface. The root metadata
|
pairs and nested buckets exist on the Bucket interface. The root metadata
|
||||||
|
@ -81,7 +81,7 @@ bucket is the upper-most bucket in which data is stored and is created at the
|
||||||
same time as the database. Use the Metadata function on the Tx interface
|
same time as the database. Use the Metadata function on the Tx interface
|
||||||
to retrieve it.
|
to retrieve it.
|
||||||
|
|
||||||
Nested Buckets
|
# Nested Buckets
|
||||||
|
|
||||||
The CreateBucket and CreateBucketIfNotExists functions on the Bucket interface
|
The CreateBucket and CreateBucketIfNotExists functions on the Bucket interface
|
||||||
provide the ability to create an arbitrary number of nested buckets. It is
|
provide the ability to create an arbitrary number of nested buckets. It is
|
||||||
|
|
|
@ -622,8 +622,8 @@ func (s *blockStore) syncBlocks() error {
|
||||||
// were partially written.
|
// were partially written.
|
||||||
//
|
//
|
||||||
// There are effectively two scenarios to consider here:
|
// There are effectively two scenarios to consider here:
|
||||||
// 1) Transient write failures from which recovery is possible
|
// 1. Transient write failures from which recovery is possible
|
||||||
// 2) More permanent failures such as hard disk death and/or removal
|
// 2. More permanent failures such as hard disk death and/or removal
|
||||||
//
|
//
|
||||||
// In either case, the write cursor will be repositioned to the old block file
|
// In either case, the write cursor will be repositioned to the old block file
|
||||||
// offset regardless of any other errors that occur while attempting to undo
|
// offset regardless of any other errors that occur while attempting to undo
|
||||||
|
|
|
@ -10,7 +10,7 @@ This driver is the recommended driver for use with lbcd. It makes use leveldb
|
||||||
for the metadata, flat files for block storage, and checksums in key areas to
|
for the metadata, flat files for block storage, and checksums in key areas to
|
||||||
ensure data integrity.
|
ensure data integrity.
|
||||||
|
|
||||||
Usage
|
# Usage
|
||||||
|
|
||||||
This package is a driver to the database package and provides the database type
|
This package is a driver to the database package and provides the database type
|
||||||
of "ffldb". The parameters the Open and Create functions take are the
|
of "ffldb". The parameters the Open and Create functions take are the
|
||||||
|
|
|
@ -318,6 +318,7 @@ func (iter *Iterator) ForceReseek() {
|
||||||
// unexpected keys and/or values.
|
// unexpected keys and/or values.
|
||||||
//
|
//
|
||||||
// For example:
|
// For example:
|
||||||
|
//
|
||||||
// iter := t.Iterator(nil, nil)
|
// iter := t.Iterator(nil, nil)
|
||||||
// for iter.Next() {
|
// for iter.Next() {
|
||||||
// if someCondition {
|
// if someCondition {
|
||||||
|
|
4
doc.go
4
doc.go
|
@ -18,9 +18,11 @@ on Windows. The -C (--configfile) flag, as shown below, can be used to override
|
||||||
this location.
|
this location.
|
||||||
|
|
||||||
Usage:
|
Usage:
|
||||||
|
|
||||||
lbcd [OPTIONS]
|
lbcd [OPTIONS]
|
||||||
|
|
||||||
Application Options:
|
Application Options:
|
||||||
|
|
||||||
--addcheckpoint= Add a custom checkpoint. Format:
|
--addcheckpoint= Add a custom checkpoint. Format:
|
||||||
'<height>:<hash>'
|
'<height>:<hash>'
|
||||||
-a, --addpeer= Add a peer to connect with at startup
|
-a, --addpeer= Add a peer to connect with at startup
|
||||||
|
@ -153,7 +155,7 @@ Application Options:
|
||||||
(eg. 192.168.1.0/24 or ::1)
|
(eg. 192.168.1.0/24 or ::1)
|
||||||
|
|
||||||
Help Options:
|
Help Options:
|
||||||
-h, --help Show this help message
|
|
||||||
|
|
||||||
|
-h, --help Show this help message
|
||||||
*/
|
*/
|
||||||
package main
|
package main
|
||||||
|
|
26
fees/doc.go
26
fees/doc.go
|
@ -7,11 +7,11 @@ Package fees provides decred-specific methods for tracking and estimating fee
|
||||||
rates for new transactions to be mined into the network. Fee rate estimation has
|
rates for new transactions to be mined into the network. Fee rate estimation has
|
||||||
two main goals:
|
two main goals:
|
||||||
|
|
||||||
- Ensuring transactions are mined within a target _confirmation range_
|
- Ensuring transactions are mined within a target _confirmation range_
|
||||||
(expressed in blocks);
|
(expressed in blocks);
|
||||||
- Attempting to minimize fees while maintaining be above restriction.
|
- Attempting to minimize fees while maintaining be above restriction.
|
||||||
|
|
||||||
Preliminaries
|
# Preliminaries
|
||||||
|
|
||||||
There are two main regimes against which fee estimation needs to be evaluated
|
There are two main regimes against which fee estimation needs to be evaluated
|
||||||
according to how full blocks being mined are (and consequently how important fee
|
according to how full blocks being mined are (and consequently how important fee
|
||||||
|
@ -39,7 +39,7 @@ The current approach to implement this estimation is based on bitcoin core's
|
||||||
algorithm. References [1] and [2] provide a high level description of how it
|
algorithm. References [1] and [2] provide a high level description of how it
|
||||||
works there. Actual code is linked in references [3] and [4].
|
works there. Actual code is linked in references [3] and [4].
|
||||||
|
|
||||||
Outline of the Algorithm
|
# Outline of the Algorithm
|
||||||
|
|
||||||
The algorithm is currently based in fee estimation as used in v0.14 of bitcoin
|
The algorithm is currently based in fee estimation as used in v0.14 of bitcoin
|
||||||
core (which is also the basis for the v0.15+ method). A more comprehensive
|
core (which is also the basis for the v0.15+ method). A more comprehensive
|
||||||
|
@ -54,31 +54,31 @@ The basic algorithm is as follows (as executed by a single full node):
|
||||||
|
|
||||||
Stats building stage:
|
Stats building stage:
|
||||||
|
|
||||||
- For each transaction observed entering mempool, record the block at which it
|
- For each transaction observed entering mempool, record the block at which it
|
||||||
was first seen
|
was first seen
|
||||||
- For each mined transaction which was previously observed to enter the mempool,
|
- For each mined transaction which was previously observed to enter the mempool,
|
||||||
record how long (in blocks) it took to be mined and its fee rate
|
record how long (in blocks) it took to be mined and its fee rate
|
||||||
- Group mined transactions into fee rate _buckets_ and _confirmation ranges_,
|
- Group mined transactions into fee rate _buckets_ and _confirmation ranges_,
|
||||||
creating a table of how many transactions were mined at each confirmation
|
creating a table of how many transactions were mined at each confirmation
|
||||||
range and fee rate bucket and their total committed fee
|
range and fee rate bucket and their total committed fee
|
||||||
- Whenever a new block is mined, decay older transactions to account for a
|
- Whenever a new block is mined, decay older transactions to account for a
|
||||||
dynamic fee environment
|
dynamic fee environment
|
||||||
|
|
||||||
Estimation stage:
|
Estimation stage:
|
||||||
|
|
||||||
- Input a target confirmation range (how many blocks to wait for the tx to be
|
- Input a target confirmation range (how many blocks to wait for the tx to be
|
||||||
mined)
|
mined)
|
||||||
- Starting at the highest fee bucket, look for buckets where the chance of
|
- Starting at the highest fee bucket, look for buckets where the chance of
|
||||||
confirmation within the desired confirmation window is > 95%
|
confirmation within the desired confirmation window is > 95%
|
||||||
- Average all such buckets to get the estimated fee rate
|
- Average all such buckets to get the estimated fee rate
|
||||||
|
|
||||||
Simulation
|
# Simulation
|
||||||
|
|
||||||
Development of the estimator was originally performed and simulated using the
|
Development of the estimator was originally performed and simulated using the
|
||||||
code in [5]. Simulation of the current code can be performed by using the
|
code in [5]. Simulation of the current code can be performed by using the
|
||||||
dcrfeesim tool available in [6].
|
dcrfeesim tool available in [6].
|
||||||
|
|
||||||
Acknowledgements
|
# Acknowledgements
|
||||||
|
|
||||||
Thanks to @davecgh for providing the initial review of the results and the
|
Thanks to @davecgh for providing the initial review of the results and the
|
||||||
original developers of the bitcoin core code (the brunt of which seems to have
|
original developers of the bitcoin core code (the brunt of which seems to have
|
||||||
|
|
|
@ -282,6 +282,7 @@ func testBIP0009(t *testing.T, forkKey string, deploymentID uint32) {
|
||||||
// - Assert the chain height is 0 and the state is ThresholdDefined
|
// - Assert the chain height is 0 and the state is ThresholdDefined
|
||||||
// - Generate 1 fewer blocks than needed to reach the first state transition
|
// - Generate 1 fewer blocks than needed to reach the first state transition
|
||||||
// - Assert chain height is expected and state is still ThresholdDefined
|
// - Assert chain height is expected and state is still ThresholdDefined
|
||||||
|
//
|
||||||
// - Generate 1 more block to reach the first state transition
|
// - Generate 1 more block to reach the first state transition
|
||||||
// - Assert chain height is expected and state moved to ThresholdStarted
|
// - Assert chain height is expected and state moved to ThresholdStarted
|
||||||
// - Generate enough blocks to reach the next state transition window, but only
|
// - Generate enough blocks to reach the next state transition window, but only
|
||||||
|
@ -309,11 +310,14 @@ func TestBIP0009(t *testing.T) {
|
||||||
// Overview:
|
// Overview:
|
||||||
// - Generate block 1
|
// - Generate block 1
|
||||||
// - Assert bit is NOT set (ThresholdDefined)
|
// - Assert bit is NOT set (ThresholdDefined)
|
||||||
|
//
|
||||||
// - Generate enough blocks to reach first state transition
|
// - Generate enough blocks to reach first state transition
|
||||||
// - Assert bit is NOT set for block prior to state transition
|
// - Assert bit is NOT set for block prior to state transition
|
||||||
// - Assert bit is set for block at state transition (ThresholdStarted)
|
// - Assert bit is set for block at state transition (ThresholdStarted)
|
||||||
|
//
|
||||||
// - Generate enough blocks to reach second state transition
|
// - Generate enough blocks to reach second state transition
|
||||||
// - Assert bit is set for block at state transition (ThresholdLockedIn)
|
// - Assert bit is set for block at state transition (ThresholdLockedIn)
|
||||||
|
//
|
||||||
// - Generate enough blocks to reach third state transition
|
// - Generate enough blocks to reach third state transition
|
||||||
// - Assert bit is set for block prior to state transition (ThresholdLockedIn)
|
// - Assert bit is set for block prior to state transition (ThresholdLockedIn)
|
||||||
// - Assert bit is NOT set for block at state transition (ThresholdActive)
|
// - Assert bit is NOT set for block at state transition (ThresholdActive)
|
||||||
|
|
|
@ -95,15 +95,20 @@ func makeTestOutput(r *rpctest.Harness, t *testing.T,
|
||||||
// them.
|
// them.
|
||||||
//
|
//
|
||||||
// Overview:
|
// Overview:
|
||||||
|
//
|
||||||
// - Pre soft-fork:
|
// - Pre soft-fork:
|
||||||
|
//
|
||||||
// - Transactions with non-final lock-times from the PoV of MTP should be
|
// - Transactions with non-final lock-times from the PoV of MTP should be
|
||||||
// rejected from the mempool.
|
// rejected from the mempool.
|
||||||
|
//
|
||||||
// - Transactions within non-final MTP based lock-times should be accepted
|
// - Transactions within non-final MTP based lock-times should be accepted
|
||||||
// in valid blocks.
|
// in valid blocks.
|
||||||
//
|
//
|
||||||
// - Post soft-fork:
|
// - Post soft-fork:
|
||||||
|
//
|
||||||
// - Transactions with non-final lock-times from the PoV of MTP should be
|
// - Transactions with non-final lock-times from the PoV of MTP should be
|
||||||
// rejected from the mempool and when found within otherwise valid blocks.
|
// rejected from the mempool and when found within otherwise valid blocks.
|
||||||
|
//
|
||||||
// - Transactions with final lock-times from the PoV of MTP should be
|
// - Transactions with final lock-times from the PoV of MTP should be
|
||||||
// accepted to the mempool and mined in future block.
|
// accepted to the mempool and mined in future block.
|
||||||
func TestBIP0113Activation(t *testing.T) {
|
func TestBIP0113Activation(t *testing.T) {
|
||||||
|
|
|
@ -31,7 +31,7 @@ proceed. Typically, this will involve things such as relaying the transactions
|
||||||
to other peers on the network and notifying the mining process that new
|
to other peers on the network and notifying the mining process that new
|
||||||
transactions are available.
|
transactions are available.
|
||||||
|
|
||||||
Feature Overview
|
# Feature Overview
|
||||||
|
|
||||||
The following is a quick overview of the major features. It is not intended to
|
The following is a quick overview of the major features. It is not intended to
|
||||||
be an exhaustive list.
|
be an exhaustive list.
|
||||||
|
@ -64,7 +64,7 @@ be an exhaustive list.
|
||||||
- Manual control of transaction removal
|
- Manual control of transaction removal
|
||||||
- Recursive removal of all dependent transactions
|
- Recursive removal of all dependent transactions
|
||||||
|
|
||||||
Errors
|
# Errors
|
||||||
|
|
||||||
Errors returned by this package are either the raw errors provided by underlying
|
Errors returned by this package are either the raw errors provided by underlying
|
||||||
calls or of type mempool.RuleError. Since there are two classes of rules
|
calls or of type mempool.RuleError. Since there are two classes of rules
|
||||||
|
|
|
@ -27,6 +27,7 @@ type blockProgressLogger struct {
|
||||||
|
|
||||||
// newBlockProgressLogger returns a new block progress logger.
|
// newBlockProgressLogger returns a new block progress logger.
|
||||||
// The progress message is templated as follows:
|
// The progress message is templated as follows:
|
||||||
|
//
|
||||||
// {progressAction} {numProcessed} {blocks|block} in the last {timePeriod}
|
// {progressAction} {numProcessed} {blocks|block} in the last {timePeriod}
|
||||||
// ({numTxs}, height {lastBlockHeight}, {lastBlockTimeStamp})
|
// ({numTxs}, height {lastBlockHeight}, {lastBlockTimeStamp})
|
||||||
func newBlockProgressLogger(progressMessage string, logger btclog.Logger) *blockProgressLogger {
|
func newBlockProgressLogger(progressMessage string, logger btclog.Logger) *blockProgressLogger {
|
||||||
|
|
18
peer/doc.go
18
peer/doc.go
|
@ -6,7 +6,7 @@
|
||||||
Package peer provides a common base for creating and managing Bitcoin network
|
Package peer provides a common base for creating and managing Bitcoin network
|
||||||
peers.
|
peers.
|
||||||
|
|
||||||
Overview
|
# Overview
|
||||||
|
|
||||||
This package builds upon the wire package, which provides the fundamental
|
This package builds upon the wire package, which provides the fundamental
|
||||||
primitives necessary to speak the bitcoin wire protocol, in order to simplify
|
primitives necessary to speak the bitcoin wire protocol, in order to simplify
|
||||||
|
@ -50,7 +50,7 @@ A quick overview of the major features peer provides are as follows:
|
||||||
- Ability to wait for shutdown/disconnect
|
- Ability to wait for shutdown/disconnect
|
||||||
- Comprehensive test coverage
|
- Comprehensive test coverage
|
||||||
|
|
||||||
Peer Configuration
|
# Peer Configuration
|
||||||
|
|
||||||
All peer configuration is handled with the Config struct. This allows the
|
All peer configuration is handled with the Config struct. This allows the
|
||||||
caller to specify things such as the user agent name and version, the bitcoin
|
caller to specify things such as the user agent name and version, the bitcoin
|
||||||
|
@ -58,7 +58,7 @@ network to use, which services it supports, and callbacks to invoke when bitcoin
|
||||||
messages are received. See the documentation for each field of the Config
|
messages are received. See the documentation for each field of the Config
|
||||||
struct for more details.
|
struct for more details.
|
||||||
|
|
||||||
Inbound and Outbound Peers
|
# Inbound and Outbound Peers
|
||||||
|
|
||||||
A peer can either be inbound or outbound. The caller is responsible for
|
A peer can either be inbound or outbound. The caller is responsible for
|
||||||
establishing the connection to remote peers and listening for incoming peers.
|
establishing the connection to remote peers and listening for incoming peers.
|
||||||
|
@ -73,7 +73,7 @@ Disconnect to disconnect from the peer and clean up all resources.
|
||||||
WaitForDisconnect can be used to block until peer disconnection and resource
|
WaitForDisconnect can be used to block until peer disconnection and resource
|
||||||
cleanup has completed.
|
cleanup has completed.
|
||||||
|
|
||||||
Callbacks
|
# Callbacks
|
||||||
|
|
||||||
In order to do anything useful with a peer, it is necessary to react to bitcoin
|
In order to do anything useful with a peer, it is necessary to react to bitcoin
|
||||||
messages. This is accomplished by creating an instance of the MessageListeners
|
messages. This is accomplished by creating an instance of the MessageListeners
|
||||||
|
@ -92,7 +92,7 @@ It is often useful to use closures which encapsulate state when specifying the
|
||||||
callback handlers. This provides a clean method for accessing that state when
|
callback handlers. This provides a clean method for accessing that state when
|
||||||
callbacks are invoked.
|
callbacks are invoked.
|
||||||
|
|
||||||
Queuing Messages and Inventory
|
# Queuing Messages and Inventory
|
||||||
|
|
||||||
The QueueMessage function provides the fundamental means to send messages to the
|
The QueueMessage function provides the fundamental means to send messages to the
|
||||||
remote peer. As the name implies, this employs a non-blocking queue. A done
|
remote peer. As the name implies, this employs a non-blocking queue. A done
|
||||||
|
@ -106,7 +106,7 @@ QueueInventory function. It employs batching and trickling along with
|
||||||
intelligent known remote peer inventory detection and avoidance through the use
|
intelligent known remote peer inventory detection and avoidance through the use
|
||||||
of a most-recently used algorithm.
|
of a most-recently used algorithm.
|
||||||
|
|
||||||
Message Sending Helper Functions
|
# Message Sending Helper Functions
|
||||||
|
|
||||||
In addition to the bare QueueMessage function previously described, the
|
In addition to the bare QueueMessage function previously described, the
|
||||||
PushAddrMsg, PushGetBlocksMsg, PushGetHeadersMsg, and PushRejectMsg functions
|
PushAddrMsg, PushGetBlocksMsg, PushGetHeadersMsg, and PushRejectMsg functions
|
||||||
|
@ -128,13 +128,13 @@ appropriate reject message based on the provided parameters as well as
|
||||||
optionally provides a flag to cause it to block until the message is actually
|
optionally provides a flag to cause it to block until the message is actually
|
||||||
sent.
|
sent.
|
||||||
|
|
||||||
Peer Statistics
|
# Peer Statistics
|
||||||
|
|
||||||
A snapshot of the current peer statistics can be obtained with the StatsSnapshot
|
A snapshot of the current peer statistics can be obtained with the StatsSnapshot
|
||||||
function. This includes statistics such as the total number of bytes read and
|
function. This includes statistics such as the total number of bytes read and
|
||||||
written, the remote address, user agent, and negotiated protocol version.
|
written, the remote address, user agent, and negotiated protocol version.
|
||||||
|
|
||||||
Logging
|
# Logging
|
||||||
|
|
||||||
This package provides extensive logging capabilities through the UseLogger
|
This package provides extensive logging capabilities through the UseLogger
|
||||||
function which allows a btclog.Logger to be specified. For example, logging at
|
function which allows a btclog.Logger to be specified. For example, logging at
|
||||||
|
@ -142,7 +142,7 @@ the debug level provides summaries of every message sent and received, and
|
||||||
logging at the trace level provides full dumps of parsed messages as well as the
|
logging at the trace level provides full dumps of parsed messages as well as the
|
||||||
raw message bytes using a format similar to hexdump -C.
|
raw message bytes using a format similar to hexdump -C.
|
||||||
|
|
||||||
Bitcoin Improvement Proposals
|
# Bitcoin Improvement Proposals
|
||||||
|
|
||||||
This package supports all BIPS supported by the wire package.
|
This package supports all BIPS supported by the wire package.
|
||||||
(https://pkg.go.dev/github.com/lbryio/lbcd/wire#hdr-Bitcoin_Improvement_Proposals)
|
(https://pkg.go.dev/github.com/lbryio/lbcd/wire#hdr-Bitcoin_Improvement_Proposals)
|
||||||
|
|
|
@ -5,7 +5,7 @@
|
||||||
/*
|
/*
|
||||||
Package rpcclient implements a websocket-enabled Bitcoin JSON-RPC client.
|
Package rpcclient implements a websocket-enabled Bitcoin JSON-RPC client.
|
||||||
|
|
||||||
Overview
|
# Overview
|
||||||
|
|
||||||
This client provides a robust and easy to use client for interfacing with a
|
This client provides a robust and easy to use client for interfacing with a
|
||||||
Bitcoin RPC server that uses a btcd/bitcoin core compatible Bitcoin JSON-RPC
|
Bitcoin RPC server that uses a btcd/bitcoin core compatible Bitcoin JSON-RPC
|
||||||
|
@ -24,7 +24,7 @@ btcd or btcwallet by default. However, configuration options are provided to
|
||||||
fall back to HTTP POST and disable TLS to support talking with inferior bitcoin
|
fall back to HTTP POST and disable TLS to support talking with inferior bitcoin
|
||||||
core style RPC servers.
|
core style RPC servers.
|
||||||
|
|
||||||
Websockets vs HTTP POST
|
# Websockets vs HTTP POST
|
||||||
|
|
||||||
In HTTP POST-based JSON-RPC, every request creates a new HTTP connection,
|
In HTTP POST-based JSON-RPC, every request creates a new HTTP connection,
|
||||||
issues the call, waits for the response, and closes the connection. This adds
|
issues the call, waits for the response, and closes the connection. This adds
|
||||||
|
@ -40,7 +40,7 @@ can be invoked without having to go through a connect/disconnect cycle for every
|
||||||
call. In addition, the websocket interface provides other nice features such as
|
call. In addition, the websocket interface provides other nice features such as
|
||||||
the ability to register for asynchronous notifications of various events.
|
the ability to register for asynchronous notifications of various events.
|
||||||
|
|
||||||
Synchronous vs Asynchronous API
|
# Synchronous vs Asynchronous API
|
||||||
|
|
||||||
The client provides both a synchronous (blocking) and asynchronous API.
|
The client provides both a synchronous (blocking) and asynchronous API.
|
||||||
|
|
||||||
|
@ -57,7 +57,7 @@ the Receive method on the returned instance will either return the result
|
||||||
immediately if it has already arrived, or block until it has. This is useful
|
immediately if it has already arrived, or block until it has. This is useful
|
||||||
since it provides the caller with greater control over concurrency.
|
since it provides the caller with greater control over concurrency.
|
||||||
|
|
||||||
Notifications
|
# Notifications
|
||||||
|
|
||||||
The first important part of notifications is to realize that they will only
|
The first important part of notifications is to realize that they will only
|
||||||
work when connected via websockets. This should intuitively make sense
|
work when connected via websockets. This should intuitively make sense
|
||||||
|
@ -67,7 +67,7 @@ All notifications provided by btcd require registration to opt-in. For example,
|
||||||
if you want to be notified when funds are received by a set of addresses, you
|
if you want to be notified when funds are received by a set of addresses, you
|
||||||
register the addresses via the NotifyReceived (or NotifyReceivedAsync) function.
|
register the addresses via the NotifyReceived (or NotifyReceivedAsync) function.
|
||||||
|
|
||||||
Notification Handlers
|
# Notification Handlers
|
||||||
|
|
||||||
Notifications are exposed by the client through the use of callback handlers
|
Notifications are exposed by the client through the use of callback handlers
|
||||||
which are setup via a NotificationHandlers instance that is specified by the
|
which are setup via a NotificationHandlers instance that is specified by the
|
||||||
|
@ -83,7 +83,7 @@ will cause a deadlock as more server responses won't be read until the callback
|
||||||
returns, but the callback would be waiting for a response. Thus, any
|
returns, but the callback would be waiting for a response. Thus, any
|
||||||
additional RPCs must be issued an a completely decoupled manner.
|
additional RPCs must be issued an a completely decoupled manner.
|
||||||
|
|
||||||
Automatic Reconnection
|
# Automatic Reconnection
|
||||||
|
|
||||||
By default, when running in websockets mode, this client will automatically
|
By default, when running in websockets mode, this client will automatically
|
||||||
keep trying to reconnect to the RPC server should the connection be lost. There
|
keep trying to reconnect to the RPC server should the connection be lost. There
|
||||||
|
@ -116,7 +116,7 @@ chain services will be available. Depending on your application, you might only
|
||||||
need chain-related RPCs. In contrast, btcwallet provides pass through treatment
|
need chain-related RPCs. In contrast, btcwallet provides pass through treatment
|
||||||
for chain-related RPCs, so it supports them in addition to wallet-related RPCs.
|
for chain-related RPCs, so it supports them in addition to wallet-related RPCs.
|
||||||
|
|
||||||
Errors
|
# Errors
|
||||||
|
|
||||||
There are 3 categories of errors that will be returned throughout this package:
|
There are 3 categories of errors that will be returned throughout this package:
|
||||||
|
|
||||||
|
@ -159,7 +159,7 @@ detect if a command is unimplemented by the remote RPC server:
|
||||||
// from the remote RPC server.
|
// from the remote RPC server.
|
||||||
}
|
}
|
||||||
|
|
||||||
Example Usage
|
# Example Usage
|
||||||
|
|
||||||
The following full-blown client examples are in the examples directory:
|
The following full-blown client examples are in the examples directory:
|
||||||
|
|
||||||
|
|
|
@ -56,6 +56,7 @@ func (c *Client) DebugLevelAsync(levelSpec string) FutureDebugLevelResult {
|
||||||
// specification.
|
// specification.
|
||||||
//
|
//
|
||||||
// The levelspec can be either a debug level or of the form:
|
// The levelspec can be either a debug level or of the form:
|
||||||
|
//
|
||||||
// <subsystem>=<level>,<subsystem2>=<level2>,...
|
// <subsystem>=<level>,<subsystem2>=<level2>,...
|
||||||
//
|
//
|
||||||
// Additionally, the special keyword 'show' can be used to get a list of the
|
// Additionally, the special keyword 'show' can be used to get a list of the
|
||||||
|
|
|
@ -1016,10 +1016,10 @@ func (c *Client) CreateWalletAsync(name string, opts ...CreateWalletOpt) FutureC
|
||||||
//
|
//
|
||||||
// Optional parameters can be specified using functional-options pattern. The
|
// Optional parameters can be specified using functional-options pattern. The
|
||||||
// following functions are available:
|
// following functions are available:
|
||||||
// * WithCreateWalletDisablePrivateKeys
|
// - WithCreateWalletDisablePrivateKeys
|
||||||
// * WithCreateWalletBlank
|
// - WithCreateWalletBlank
|
||||||
// * WithCreateWalletPassphrase
|
// - WithCreateWalletPassphrase
|
||||||
// * WithCreateWalletAvoidReuse
|
// - WithCreateWalletAvoidReuse
|
||||||
func (c *Client) CreateWallet(name string, opts ...CreateWalletOpt) (*btcjson.CreateWalletResult, error) {
|
func (c *Client) CreateWallet(name string, opts ...CreateWalletOpt) (*btcjson.CreateWalletResult, error) {
|
||||||
return c.CreateWalletAsync(name, opts...).Receive()
|
return c.CreateWalletAsync(name, opts...).Receive()
|
||||||
}
|
}
|
||||||
|
|
|
@ -12,7 +12,7 @@ overview to provide information on how to use the package.
|
||||||
This package provides data structures and functions to parse and execute
|
This package provides data structures and functions to parse and execute
|
||||||
bitcoin transaction scripts.
|
bitcoin transaction scripts.
|
||||||
|
|
||||||
Script Overview
|
# Script Overview
|
||||||
|
|
||||||
Bitcoin transaction scripts are written in a stack-base, FORTH-like language.
|
Bitcoin transaction scripts are written in a stack-base, FORTH-like language.
|
||||||
|
|
||||||
|
@ -30,7 +30,7 @@ is used to prove the the spender is authorized to perform the transaction.
|
||||||
One benefit of using a scripting language is added flexibility in specifying
|
One benefit of using a scripting language is added flexibility in specifying
|
||||||
what conditions must be met in order to spend bitcoins.
|
what conditions must be met in order to spend bitcoins.
|
||||||
|
|
||||||
Errors
|
# Errors
|
||||||
|
|
||||||
Errors returned by this package are of type txscript.Error. This allows the
|
Errors returned by this package are of type txscript.Error. This allows the
|
||||||
caller to programmatically determine the specific error by examining the
|
caller to programmatically determine the specific error by examining the
|
||||||
|
|
|
@ -427,10 +427,10 @@ func (e ErrorCode) String() string {
|
||||||
|
|
||||||
// Error identifies a script-related error. It is used to indicate three
|
// Error identifies a script-related error. It is used to indicate three
|
||||||
// classes of errors:
|
// classes of errors:
|
||||||
// 1) Script execution failures due to violating one of the many requirements
|
// 1. Script execution failures due to violating one of the many requirements
|
||||||
// imposed by the script engine or evaluating to false
|
// imposed by the script engine or evaluating to false
|
||||||
// 2) Improper API usage by callers
|
// 2. Improper API usage by callers
|
||||||
// 3) Internal consistency check failures
|
// 3. Internal consistency check failures
|
||||||
//
|
//
|
||||||
// The caller can use type assertions on the returned errors to access the
|
// The caller can use type assertions on the returned errors to access the
|
||||||
// ErrorCode field to ascertain the specific reason for the error. As an
|
// ErrorCode field to ascertain the specific reason for the error. As an
|
||||||
|
|
|
@ -37,6 +37,7 @@ func (e ErrScriptNotCanonical) Error() string {
|
||||||
// For example, the following would build a 2-of-3 multisig script for usage in
|
// For example, the following would build a 2-of-3 multisig script for usage in
|
||||||
// a pay-to-script-hash (although in this situation MultiSigScript() would be a
|
// a pay-to-script-hash (although in this situation MultiSigScript() would be a
|
||||||
// better choice to generate the script):
|
// better choice to generate the script):
|
||||||
|
//
|
||||||
// builder := txscript.NewScriptBuilder()
|
// builder := txscript.NewScriptBuilder()
|
||||||
// builder.AddOp(txscript.OP_2).AddData(pubKey1).AddData(pubKey2)
|
// builder.AddOp(txscript.OP_2).AddData(pubKey1).AddData(pubKey2)
|
||||||
// builder.AddData(pubKey3).AddOp(txscript.OP_3)
|
// builder.AddData(pubKey3).AddOp(txscript.OP_3)
|
||||||
|
|
|
@ -89,6 +89,7 @@ func checkMinimalDataEncoding(v []byte) error {
|
||||||
// Bytes returns the number serialized as a little endian with a sign bit.
|
// Bytes returns the number serialized as a little endian with a sign bit.
|
||||||
//
|
//
|
||||||
// Example encodings:
|
// Example encodings:
|
||||||
|
//
|
||||||
// 127 -> [0x7f]
|
// 127 -> [0x7f]
|
||||||
// -127 -> [0xff]
|
// -127 -> [0xff]
|
||||||
// 128 -> [0x80 0x00]
|
// 128 -> [0x80 0x00]
|
||||||
|
|
20
wire/doc.go
20
wire/doc.go
|
@ -14,7 +14,7 @@ supported bitcoin messages to and from the wire. This package does not deal
|
||||||
with the specifics of message handling such as what to do when a message is
|
with the specifics of message handling such as what to do when a message is
|
||||||
received. This provides the caller with a high level of flexibility.
|
received. This provides the caller with a high level of flexibility.
|
||||||
|
|
||||||
Bitcoin Message Overview
|
# Bitcoin Message Overview
|
||||||
|
|
||||||
The bitcoin protocol consists of exchanging messages between peers. Each
|
The bitcoin protocol consists of exchanging messages between peers. Each
|
||||||
message is preceded by a header which identifies information about it such as
|
message is preceded by a header which identifies information about it such as
|
||||||
|
@ -30,7 +30,7 @@ messages, all of the details of marshalling and unmarshalling to and from the
|
||||||
wire using bitcoin encoding are handled so the caller doesn't have to concern
|
wire using bitcoin encoding are handled so the caller doesn't have to concern
|
||||||
themselves with the specifics.
|
themselves with the specifics.
|
||||||
|
|
||||||
Message Interaction
|
# Message Interaction
|
||||||
|
|
||||||
The following provides a quick summary of how the bitcoin messages are intended
|
The following provides a quick summary of how the bitcoin messages are intended
|
||||||
to interact with one another. As stated above, these interactions are not
|
to interact with one another. As stated above, these interactions are not
|
||||||
|
@ -62,13 +62,13 @@ interactions in no particular order.
|
||||||
in BIP0031. The BIP0031Version constant can be used to detect a recent
|
in BIP0031. The BIP0031Version constant can be used to detect a recent
|
||||||
enough protocol version for this purpose (version > BIP0031Version).
|
enough protocol version for this purpose (version > BIP0031Version).
|
||||||
|
|
||||||
Common Parameters
|
# Common Parameters
|
||||||
|
|
||||||
There are several common parameters that arise when using this package to read
|
There are several common parameters that arise when using this package to read
|
||||||
and write bitcoin messages. The following sections provide a quick overview of
|
and write bitcoin messages. The following sections provide a quick overview of
|
||||||
these parameters so the next sections can build on them.
|
these parameters so the next sections can build on them.
|
||||||
|
|
||||||
Protocol Version
|
# Protocol Version
|
||||||
|
|
||||||
The protocol version should be negotiated with the remote peer at a higher
|
The protocol version should be negotiated with the remote peer at a higher
|
||||||
level than this package via the version (MsgVersion) message exchange, however,
|
level than this package via the version (MsgVersion) message exchange, however,
|
||||||
|
@ -77,7 +77,7 @@ latest protocol version this package supports and is typically the value to use
|
||||||
for all outbound connections before a potentially lower protocol version is
|
for all outbound connections before a potentially lower protocol version is
|
||||||
negotiated.
|
negotiated.
|
||||||
|
|
||||||
Bitcoin Network
|
# Bitcoin Network
|
||||||
|
|
||||||
The bitcoin network is a magic number which is used to identify the start of a
|
The bitcoin network is a magic number which is used to identify the start of a
|
||||||
message and which bitcoin network the message applies to. This package provides
|
message and which bitcoin network the message applies to. This package provides
|
||||||
|
@ -88,7 +88,7 @@ the following constants:
|
||||||
wire.TestNet3 (Test network version 3)
|
wire.TestNet3 (Test network version 3)
|
||||||
wire.SimNet (Simulation test network)
|
wire.SimNet (Simulation test network)
|
||||||
|
|
||||||
Determining Message Type
|
# Determining Message Type
|
||||||
|
|
||||||
As discussed in the bitcoin message overview section, this package reads
|
As discussed in the bitcoin message overview section, this package reads
|
||||||
and writes bitcoin messages using a generic interface named Message. In
|
and writes bitcoin messages using a generic interface named Message. In
|
||||||
|
@ -106,7 +106,7 @@ switch or type assertion. An example of a type switch follows:
|
||||||
fmt.Printf("Number of tx in block: %v", msg.Header.TxnCount)
|
fmt.Printf("Number of tx in block: %v", msg.Header.TxnCount)
|
||||||
}
|
}
|
||||||
|
|
||||||
Reading Messages
|
# Reading Messages
|
||||||
|
|
||||||
In order to unmarshall bitcoin messages from the wire, use the ReadMessage
|
In order to unmarshall bitcoin messages from the wire, use the ReadMessage
|
||||||
function. It accepts any io.Reader, but typically this will be a net.Conn to
|
function. It accepts any io.Reader, but typically this will be a net.Conn to
|
||||||
|
@ -121,7 +121,7 @@ a remote node running a bitcoin peer. Example syntax is:
|
||||||
// Log and handle the error
|
// Log and handle the error
|
||||||
}
|
}
|
||||||
|
|
||||||
Writing Messages
|
# Writing Messages
|
||||||
|
|
||||||
In order to marshall bitcoin messages to the wire, use the WriteMessage
|
In order to marshall bitcoin messages to the wire, use the WriteMessage
|
||||||
function. It accepts any io.Writer, but typically this will be a net.Conn to
|
function. It accepts any io.Writer, but typically this will be a net.Conn to
|
||||||
|
@ -139,7 +139,7 @@ from a remote peer is:
|
||||||
// Log and handle the error
|
// Log and handle the error
|
||||||
}
|
}
|
||||||
|
|
||||||
Errors
|
# Errors
|
||||||
|
|
||||||
Errors returned by this package are either the raw errors provided by underlying
|
Errors returned by this package are either the raw errors provided by underlying
|
||||||
calls to read/write from streams such as io.EOF, io.ErrUnexpectedEOF, and
|
calls to read/write from streams such as io.EOF, io.ErrUnexpectedEOF, and
|
||||||
|
@ -147,7 +147,7 @@ io.ErrShortWrite, or of type wire.MessageError. This allows the caller to
|
||||||
differentiate between general IO errors and malformed messages through type
|
differentiate between general IO errors and malformed messages through type
|
||||||
assertions.
|
assertions.
|
||||||
|
|
||||||
Bitcoin Improvement Proposals
|
# Bitcoin Improvement Proposals
|
||||||
|
|
||||||
This package includes spec changes outlined by the following BIPs:
|
This package includes spec changes outlined by the following BIPs:
|
||||||
|
|
||||||
|
|
|
@ -114,12 +114,14 @@ const (
|
||||||
// transaction from one that would require a different parsing logic.
|
// transaction from one that would require a different parsing logic.
|
||||||
//
|
//
|
||||||
// Position of FLAG in a bitcoin tx message:
|
// Position of FLAG in a bitcoin tx message:
|
||||||
|
//
|
||||||
// ┌─────────┬────────────────────┬─────────────┬─────┐
|
// ┌─────────┬────────────────────┬─────────────┬─────┐
|
||||||
// │ VERSION │ FLAG │ TX-IN-COUNT │ ... │
|
// │ VERSION │ FLAG │ TX-IN-COUNT │ ... │
|
||||||
// │ 4 bytes │ 2 bytes (optional) │ varint │ │
|
// │ 4 bytes │ 2 bytes (optional) │ varint │ │
|
||||||
// └─────────┴────────────────────┴─────────────┴─────┘
|
// └─────────┴────────────────────┴─────────────┴─────┘
|
||||||
//
|
//
|
||||||
// Zooming into the FLAG field:
|
// Zooming into the FLAG field:
|
||||||
|
//
|
||||||
// ┌── FLAG ─────────────┬────────┐
|
// ┌── FLAG ─────────────┬────────┐
|
||||||
// │ TxFlagMarker (0x00) │ TxFlag │
|
// │ TxFlagMarker (0x00) │ TxFlag │
|
||||||
// │ 1 byte │ 1 byte │
|
// │ 1 byte │ 1 byte │
|
||||||
|
|
Loading…
Add table
Reference in a new issue