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Have llvm_start_multithreaded return a bool indicating whether multithreaded

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initialization succeeded or not, rather than just asserting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2009-05-20 21:03:06 +00:00
parent 2aa783b2e7
commit 6afe2fa288
2 changed files with 7 additions and 4 deletions
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6
include/llvm/Support/ManagedStatic.h
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@ -96,8 +96,10 @@ public:
/// llvm_start_multithreaded - Allocate and initialize structures needed to
/// make LLVM safe for multithreading.
void llvm_start_multithreaded();
/// make LLVM safe for multithreading. The return value indicates whether
/// multithreaded initialization succeeded. LLVM will still be operational
/// on "failed" return, but will not be safe to run multithreaded.
bool llvm_start_multithreaded();
/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
void llvm_shutdown();

5
lib/Support/ManagedStatic.cpp
View File

@ -68,12 +68,13 @@ void ManagedStaticBase::destroy() const {
DeleterFn = 0;
}
void llvm::llvm_start_multithreaded() {
bool llvm::llvm_start_multithreaded() {
#if LLVM_MULTITHREADED
assert(ManagedStaticMutex == 0 && "Multithreaded LLVM already initialized!");
ManagedStaticMutex = new sys::Mutex(true);
return true;
#else
assert(0 && "LLVM built without multithreading support!");
return false;
#endif
}