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Cleaned up the critical section macros.

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This commit is contained in:
Clark Gaebel 2011-11-02 04:33:55 -04:00
parent 8fb6134aa5
commit 3083cf100a
1 changed files with 15 additions and 9 deletions
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24
src/util.h
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@ -243,19 +243,20 @@ public:
pcs = &csIn;
pcs->Enter(pszName, pszFile, nLine);
}
operator bool() const
{
return true;
}
~CCriticalBlock()
{
pcs->Leave();
}
};
// WARNING: This will catch continue and break!
// break is caught with an assertion, but there's no way to detect continue.
// 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, #cs, __FILE__, __LINE__); fcriticalblockonce; fcriticalblockonce=false)
if (CCriticalBlock criticalblock = CCriticalBlock(cs, #cs, __FILE__, __LINE__))
class CTryCriticalBlock
{
@ -267,6 +268,12 @@ public:
{
pcs = (csIn.TryEnter(pszName, pszFile, nLine) ? &csIn : NULL);
}
operator bool() const
{
return Entered();
}
~CTryCriticalBlock()
{
if (pcs)
@ -274,12 +281,11 @@ public:
pcs->Leave();
}
}
bool Entered() { return pcs != NULL; }
bool Entered() const { 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, #cs, __FILE__, __LINE__); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()); fcriticalblockonce=false)
if (CTryCriticalBlock criticalblock = CTryCriticalBlock(cs, #cs, __FILE__, __LINE__))