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Workaround for an... interesting bug in Darwin's pthread_rwlock_init.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73806 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2009-06-20 00:32:27 +00:00
parent 3964acc2f4
commit 107a537db1
1 changed files with 7 additions and 0 deletions
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7
lib/System/RWMutex.cpp
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@ -13,6 +13,7 @@
#include "llvm/Config/config.h"
#include "llvm/System/RWMutex.h"
#include <cstring>
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only TRULY operating system
@ -64,6 +65,12 @@ RWMutexImpl::RWMutexImpl()
// Declare the pthread_rwlock data structures
pthread_rwlock_t* rwlock =
static_cast<pthread_rwlock_t*>(malloc(sizeof(pthread_rwlock_t)));
#ifdef __APPLE__
// Workaround a bug/mis-feature in Darwin's pthread_rwlock_init.
bzero(rwlock, sizeof(pthread_rwlock_t));
#endif
pthread_rwlockattr_t attr;
// Initialize the rwlock attributes