Merge #9999: [LevelDB] Plug leveldb logs to bitcoin logs

cfce581 [LevelDB] Plug leveldb logs to bitcoin logs (NicolasDorier)

Tree-SHA512: e40a2c2644c269bb2da7be04aec39ff64ad350d508391750a757955ed3f9d96998775d01e04b282a75b36d776c3960a345cc7b6f1466e6ae167d27518bf4baee
This commit is contained in:
Wladimir J. van der Laan 2017-03-18 10:58:08 +01:00
commit a328904480
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GPG key ID: 74810B012346C9A6
2 changed files with 62 additions and 1 deletions

View file

@ -14,6 +14,64 @@
#include <leveldb/filter_policy.h>
#include <memenv.h>
#include <stdint.h>
#include <algorithm>
class CBitcoinLevelDBLogger : public leveldb::Logger {
public:
// This code is adapted from posix_logger.h, which is why it is using vsprintf.
// Please do not do this in normal code
virtual void Logv(const char * format, va_list ap) override {
if (!LogAcceptCategory("leveldb"))
return;
char buffer[500];
for (int iter = 0; iter < 2; iter++) {
char* base;
int bufsize;
if (iter == 0) {
bufsize = sizeof(buffer);
base = buffer;
}
else {
bufsize = 30000;
base = new char[bufsize];
}
char* p = base;
char* limit = base + bufsize;
// Print the message
if (p < limit) {
va_list backup_ap;
va_copy(backup_ap, ap);
// Do not use vsnprintf elsewhere in bitcoin source code, see above.
p += vsnprintf(p, limit - p, format, backup_ap);
va_end(backup_ap);
}
// Truncate to available space if necessary
if (p >= limit) {
if (iter == 0) {
continue; // Try again with larger buffer
}
else {
p = limit - 1;
}
}
// Add newline if necessary
if (p == base || p[-1] != '\n') {
*p++ = '\n';
}
assert(p <= limit);
base[std::min(bufsize - 1, (int)(p - base))] = '\0';
LogPrintStr(base);
if (base != buffer) {
delete[] base;
}
break;
}
}
};
static leveldb::Options GetOptions(size_t nCacheSize)
{
@ -23,6 +81,7 @@ static leveldb::Options GetOptions(size_t nCacheSize)
options.filter_policy = leveldb::NewBloomFilterPolicy(10);
options.compression = leveldb::kNoCompression;
options.max_open_files = 64;
options.info_log = new CBitcoinLevelDBLogger();
if (leveldb::kMajorVersion > 1 || (leveldb::kMajorVersion == 1 && leveldb::kMinorVersion >= 16)) {
// LevelDB versions before 1.16 consider short writes to be corruption. Only trigger error
// on corruption in later versions.
@ -82,6 +141,8 @@ CDBWrapper::~CDBWrapper()
pdb = NULL;
delete options.filter_policy;
options.filter_policy = NULL;
delete options.info_log;
options.info_log = NULL;
delete options.block_cache;
options.block_cache = NULL;
delete penv;

View file

@ -430,7 +430,7 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT));
strUsage += HelpMessageOpt("-bip9params=deployment:start:end", "Use given start/end times for specified BIP9 deployment (regtest-only)");
}
std::string debugCategories = "addrman, alert, bench, cmpctblock, coindb, db, http, libevent, lock, mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins, tor, zmq"; // Don't translate these and qt below
std::string debugCategories = "addrman, alert, bench, cmpctblock, coindb, db, http, leveldb, libevent, lock, mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins, tor, zmq"; // Don't translate these and qt below
if (mode == HMM_BITCOIN_QT)
debugCategories += ", qt";
strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " +