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Merge branch 'master' of https://github.com/bitcoin/bitcoin

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This commit is contained in:
Wladimir J. van der Laan
2011-08-22 14:43:37 +02:00
parent 872b1f3e4c 865ed8a1e5
commit adce862c27
5 changed files with 150 additions and 69 deletions
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56
src/util.h
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@@ -221,31 +221,17 @@ std::string FormatFullVersion();
// Wrapper to automatically initialize critical sections
// Wrapper to automatically initialize mutex
class CCriticalSection
{
#ifdef __WXMSW__
protected:
CRITICAL_SECTION cs;
public:
explicit CCriticalSection() { InitializeCriticalSection(&cs); }
~CCriticalSection() { DeleteCriticalSection(&cs); }
void Enter() { EnterCriticalSection(&cs); }
void Leave() { LeaveCriticalSection(&cs); }
bool TryEnter() { return TryEnterCriticalSection(&cs); }
#else
protected:
boost::interprocess::interprocess_recursive_mutex mutex;
public:
explicit CCriticalSection() { }
~CCriticalSection() { }
void Enter() { mutex.lock(); }
void Leave() { mutex.unlock(); }
bool TryEnter() { return mutex.try_lock(); }
#endif
public:
const char* pszFile;
int nLine;
void Enter(const char* pszName, const char* pszFile, int nLine);
void Leave();
bool TryEnter(const char* pszName, const char* pszFile, int nLine);
};
// Automatically leave critical section when leaving block, needed for exception safety
@@ -253,9 +239,17 @@ class CCriticalBlock
{
protected:
CCriticalSection* pcs;
public:
CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; pcs->Enter(); }
~CCriticalBlock() { pcs->Leave(); }
CCriticalBlock(CCriticalSection& csIn, const char* pszName, const char* pszFile, int nLine)
{
pcs = &csIn;
pcs->Enter(pszName, pszFile, nLine);
}
~CCriticalBlock()
{
pcs->Leave();
}
};
// WARNING: This will catch continue and break!
@@ -263,22 +257,32 @@ public:
// I'd rather be careful than suffer the other more error prone syntax.
// The compiler will optimise away all this loop junk.
#define CRITICAL_BLOCK(cs) \
for (bool fcriticalblockonce=true; fcriticalblockonce; assert("break caught by CRITICAL_BLOCK!" && !fcriticalblockonce), fcriticalblockonce=false) \
for (CCriticalBlock criticalblock(cs); fcriticalblockonce && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by CRITICAL_BLOCK!" && !fcriticalblockonce)), fcriticalblockonce=false) \
for (CCriticalBlock criticalblock(cs, #cs, __FILE__, __LINE__); fcriticalblockonce; fcriticalblockonce=false)
class CTryCriticalBlock
{
protected:
CCriticalSection* pcs;
public:
CTryCriticalBlock(CCriticalSection& csIn) { pcs = (csIn.TryEnter() ? &csIn : NULL); }
~CTryCriticalBlock() { if (pcs) pcs->Leave(); }
CTryCriticalBlock(CCriticalSection& csIn, const char* pszName, const char* pszFile, int nLine)
{
pcs = (csIn.TryEnter(pszName, pszFile, nLine) ? &csIn : NULL);
}
~CTryCriticalBlock()
{
if (pcs)
{
pcs->Leave();
}
}
bool Entered() { return pcs != NULL; }
};
#define TRY_CRITICAL_BLOCK(cs) \
for (bool fcriticalblockonce=true; fcriticalblockonce; assert("break caught by TRY_CRITICAL_BLOCK!" && !fcriticalblockonce), fcriticalblockonce=false) \
for (CTryCriticalBlock criticalblock(cs); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()) && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by TRY_CRITICAL_BLOCK!" && !fcriticalblockonce)), fcriticalblockonce=false) \
for (CTryCriticalBlock criticalblock(cs, #cs, __FILE__, __LINE__); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()); fcriticalblockonce=false)