87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
#ifndef _UTIL_H_
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#define _UTIL_H_ 1
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#include <pthread.h>
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#include <errno.h>
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#include <openssl/sha.h>
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#include "uint256.h"
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#define loop for (;;)
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#define BEGIN(a) ((char*)&(a))
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#define END(a) ((char*)&((&(a))[1]))
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#define UBEGIN(a) ((unsigned char*)&(a))
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#define UEND(a) ((unsigned char*)&((&(a))[1]))
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#define ARRAYLEN(array) (sizeof(array)/sizeof((array)[0]))
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#define WSAGetLastError() errno
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#define WSAEINVAL EINVAL
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#define WSAEALREADY EALREADY
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#define WSAEWOULDBLOCK EWOULDBLOCK
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#define WSAEMSGSIZE EMSGSIZE
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#define WSAEINTR EINTR
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#define WSAEINPROGRESS EINPROGRESS
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#define WSAEADDRINUSE EADDRINUSE
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#define WSAENOTSOCK EBADF
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#define INVALID_SOCKET (SOCKET)(~0)
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#define SOCKET_ERROR -1
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inline int myclosesocket(SOCKET& hSocket)
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{
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if (hSocket == INVALID_SOCKET)
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return WSAENOTSOCK;
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#ifdef WIN32
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int ret = closesocket(hSocket);
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#else
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int ret = close(hSocket);
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#endif
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hSocket = INVALID_SOCKET;
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return ret;
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}
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#define closesocket(s) myclosesocket(s)
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// Wrapper to automatically initialize mutex
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class CCriticalSection
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{
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protected:
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pthread_mutex_t mutex;
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public:
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explicit CCriticalSection() { pthread_mutex_init(&mutex, NULL); }
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~CCriticalSection() { pthread_mutex_destroy(&mutex); }
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void Enter() { pthread_mutex_lock(&mutex); }
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void Leave() { pthread_mutex_unlock(&mutex); }
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};
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// Automatically leave critical section when leaving block, needed for exception safety
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class CCriticalBlock
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{
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protected:
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CCriticalSection* pcs;
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public:
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CCriticalBlock(CCriticalSection& cs) : pcs(&cs) { pcs->Enter(); }
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operator bool() const { return true; }
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~CCriticalBlock() { pcs->Leave(); }
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};
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#define CRITICAL_BLOCK(cs) \
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if (CCriticalBlock criticalblock = CCriticalBlock(cs))
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template<typename T1> inline uint256 Hash(const T1 pbegin, const T1 pend)
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{
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static unsigned char pblank[1];
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uint256 hash1;
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SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
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uint256 hash2;
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SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
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return hash2;
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}
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void static inline Sleep(int nMilliSec) {
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struct timespec wa;
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wa.tv_sec = nMilliSec/1000;
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wa.tv_nsec = (nMilliSec % 1000) * 1000000;
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nanosleep(&wa, NULL);
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}
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#endif
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