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fix file caching issue

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This commit is contained in:
Erwin Coumans
2019-04-25 07:04:22 -07:00
parent 0d4392af58
commit 72c6ed9abe
2 changed files with 28 additions and 26 deletions
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2
examples/SharedMemory/b3PluginManager.cpp
View File

@@ -112,7 +112,7 @@ struct b3PluginManagerInternalData
b3BulletDefaultFileIO m_defaultFileIO;
b3PluginManagerInternalData()
: m_rpcCommandProcessorInterface(0), m_activeNotificationsBufferIndex(0), m_activeRendererPluginUid(-1), m_activeCollisionPluginUid(-1), m_numNotificationPlugins(0), m_activeFileIOPluginUid(-1)
: m_physicsDirect(0), m_rpcCommandProcessorInterface(0), m_activeNotificationsBufferIndex(0), m_activeRendererPluginUid(-1), m_activeCollisionPluginUid(-1), m_numNotificationPlugins(0), m_activeFileIOPluginUid(-1)
{
}
};

52
examples/SharedMemory/plugins/fileIOPlugin/fileIOPlugin.cpp
View File

@@ -388,35 +388,37 @@ struct WrapperFileIO : public CommonFileIOInterface
int childHandle = childFileIO->fileOpen(fileName, mode);
if (childHandle>=0)
{
int fileSize = childFileIO->getFileSize(childHandle);
char* buffer = 0;
if (fileSize)
{
buffer = m_cachedFiles.allocateBuffer(fileSize);
if (buffer)
{
int readBytes = childFileIO->fileRead(childHandle, buffer, fileSize);
if (readBytes!=fileSize)
{
if (readBytes<fileSize)
{
fileSize = readBytes;
} else
{
printf("WrapperFileIO error: reading more bytes (%d) then reported file size (%d) of file %s.\n", readBytes, fileSize, fileName);
}
}
} else
{
fileSize=0;
}
}
//potentially register a zero byte file, or files that only can be read partially
if (m_enableFileCaching)
{
int fileSize = childFileIO->getFileSize(childHandle);
char* buffer = 0;
if (fileSize)
{
buffer = m_cachedFiles.allocateBuffer(fileSize);
if (buffer)
{
int readBytes = childFileIO->fileRead(childHandle, buffer, fileSize);
if (readBytes!=fileSize)
{
if (readBytes<fileSize)
{
fileSize = readBytes;
} else
{
printf("WrapperFileIO error: reading more bytes (%d) then reported file size (%d) of file %s.\n", readBytes, fileSize, fileName);
}
}
} else
{
fileSize=0;
}
}
//potentially register a zero byte file, or files that only can be read partially
m_cachedFiles.registerFile(fileName, buffer, fileSize);
}
childFileIO->fileClose(childHandle);
break;
}