VSIFileManager *VSIFileManager::Get()
{
static volatile GPtrDiff_t nConstructerPID = 0;
if( poManager != NULL )
{
if( nConstructerPID != 0 )
{
GPtrDiff_t nCurrentPID = static_cast<GPtrDiff_t>(CPLGetPID());
if( nConstructerPID != nCurrentPID )
{
{
CPLMutexHolder oHolder( &hVSIFileManagerMutex );
}
if ( nConstructerPID != 0 )
{
VSIDebug1( "nConstructerPID != 0: %d", nConstructerPID);
assert(false);
}
}
}
return poManager;
}
CPLMutexHolder oHolder2( &hVSIFileManagerMutex );
if( poManager == NULL )
{
nConstructerPID = static_cast<GPtrDiff_t>(CPLGetPID());
#ifdef DEBUG_VERBOSE
printf("Thread %d: VSIFileManager in construction\n", nConstructerPID);
#endif
poManager = new VSIFileManager;
VSIInstallLargeFileHandler();
VSIInstallSubFileHandler();
VSIInstallMemFileHandler();
#ifdef HAVE_LIBZ
VSIInstallGZipFileHandler();
VSIInstallZipFileHandler();
#endif
#ifdef HAVE_CURL
VSIInstallCurlFileHandler();
VSIInstallCurlStreamingFileHandler();
VSIInstallS3FileHandler();
VSIInstallS3StreamingFileHandler();
#endif
VSIInstallStdinHandler();
VSIInstallStdoutHandler();
VSIInstallSparseFileHandler();
VSIInstallTarFileHandler();
VSIInstallCryptFileHandler();
//printf("Thread %d: VSIFileManager construction finished\n", nConstructerPID);
nConstructerPID = 0;
}
return poManager;
}
VSIFileManager *VSIFileManager::Get()
{
static volatile int nConstructerPID = 0;
if( poManager != NULL )
{
if( nConstructerPID != 0 )
{
int nCurrentPID = (int)CPLGetPID();
if( nConstructerPID != nCurrentPID )
{
//printf("Thread %d: Waiting for VSIFileManager to be finished by other thread.\n", nCurrentPID);
{
CPLMutexHolder oHolder( &hVSIFileManagerMutex );
}
//printf("Thread %d: End of wait for VSIFileManager construction to be finished\n", nCurrentPID);
CPLAssert(nConstructerPID == 0);
}
}
return poManager;
}
CPLMutexHolder oHolder2( &hVSIFileManagerMutex );
if( poManager == NULL )
{
nConstructerPID = (int)CPLGetPID();
//printf("Thread %d: VSIFileManager in construction\n", nConstructerPID);
poManager = new VSIFileManager;
VSIInstallLargeFileHandler();
VSIInstallSubFileHandler();
VSIInstallMemFileHandler();
#ifdef HAVE_LIBZ
VSIInstallGZipFileHandler();
VSIInstallZipFileHandler();
#endif
#ifdef HAVE_CURL
VSIInstallCurlFileHandler();
VSIInstallCurlStreamingFileHandler();
#endif
VSIInstallStdinHandler();
VSIInstallStdoutHandler();
VSIInstallSparseFileHandler();
VSIInstallTarFileHandler();
//printf("Thread %d: VSIFileManager construction finished\n", nConstructerPID);
nConstructerPID = 0;
}
return poManager;
}