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Fix try_compile RemoveFile anti-virus loop (#11503) 

Commit 3827991e (...fix...not being able to remove try compile code,
2008-03-26) introduced a loop of RemoveFile attempts to overcome
anti-virus locks on recently created try_compile executables.  Fix the
logic in this loop to work when the file is already missing.
This commit is contained in:
Brad King 2010-12-03 07:38:15 -05:00
parent c300ef1c66
commit 097294e667
1 changed files with 11 additions and 21 deletions
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32
Source/cmCoreTryCompile.cxx
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@ -396,28 +396,18 @@ void cmCoreTryCompile::CleanupFiles(const char* binDir)
}
else
{
if(!cmSystemTools::RemoveFile(fullPath.c_str()))
// Sometimes anti-virus software hangs on to new files so we
// cannot delete them immediately. Try a few times.
int tries = 5;
while(!cmSystemTools::RemoveFile(fullPath.c_str()) &&
--tries && cmSystemTools::FileExists(fullPath.c_str()))
{
bool removed = false;
int numAttempts = 0;
// sometimes anti-virus software hangs on to
// new files and we can not delete them, so try
// 5 times with .5 second delay between tries.
while(!removed && numAttempts < 5)
{
cmSystemTools::Delay(500);
if(cmSystemTools::RemoveFile(fullPath.c_str()))
{
removed = true;
}
numAttempts++;
}
if(!removed)
{
std::string m = "Remove failed on file: ";
m += fullPath;
cmSystemTools::ReportLastSystemError(m.c_str());
}
cmSystemTools::Delay(500);
}
if(tries == 0)
{
std::string m = "Remove failed on file: " + fullPath;
cmSystemTools::ReportLastSystemError(m.c_str());
}
}
}