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author | Owen Anderson <resistor@mac.com> | 2009-06-16 17:33:51 +0000 |
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committer | Owen Anderson <resistor@mac.com> | 2009-06-16 17:33:51 +0000 |
commit | f7e361fb0f799ac28ac15b107520ebdcf8f6de6c (patch) | |
tree | da867f4f03bba0f350b1f31e705ddfa611b8f9d7 /lib/Support/ManagedStatic.cpp | |
parent | 3c01f7b8d0a12051f509bc4acdf05f484e304f1a (diff) | |
download | external_llvm-f7e361fb0f799ac28ac15b107520ebdcf8f6de6c.zip external_llvm-f7e361fb0f799ac28ac15b107520ebdcf8f6de6c.tar.gz external_llvm-f7e361fb0f799ac28ac15b107520ebdcf8f6de6c.tar.bz2 |
Split the thread-related APIs out into their own file, and add a few more
calls for convenience.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73512 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/ManagedStatic.cpp')
-rw-r--r-- | lib/Support/ManagedStatic.cpp | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/lib/Support/ManagedStatic.cpp b/lib/Support/ManagedStatic.cpp index 6de6575..4e655a0 100644 --- a/lib/Support/ManagedStatic.cpp +++ b/lib/Support/ManagedStatic.cpp @@ -14,18 +14,15 @@ #include "llvm/Support/ManagedStatic.h" #include "llvm/Config/config.h" #include "llvm/System/Atomic.h" -#include "llvm/System/Mutex.h" #include <cassert> using namespace llvm; static const ManagedStaticBase *StaticList = 0; -static sys::Mutex* ManagedStaticMutex = 0; - void ManagedStaticBase::RegisterManagedStatic(void *(*Creator)(), void (*Deleter)(void*)) const { - if (ManagedStaticMutex) { - ManagedStaticMutex->acquire(); + if (llvm_is_multithreaded()) { + llvm_acquire_global_lock(); if (Ptr == 0) { void* tmp = Creator ? Creator() : 0; @@ -39,7 +36,7 @@ void ManagedStaticBase::RegisterManagedStatic(void *(*Creator)(), StaticList = this; } - ManagedStaticMutex->release(); + llvm_release_global_lock(); } else { assert(Ptr == 0 && DeleterFn == 0 && Next == 0 && "Partially initialized ManagedStatic!?"); @@ -68,24 +65,11 @@ void ManagedStaticBase::destroy() const { DeleterFn = 0; } -bool llvm::llvm_start_multithreaded() { -#if LLVM_MULTITHREADED - assert(ManagedStaticMutex == 0 && "Multithreaded LLVM already initialized!"); - ManagedStaticMutex = new sys::Mutex(true); - return true; -#else - return false; -#endif -} - /// llvm_shutdown - Deallocate and destroy all ManagedStatic variables. void llvm::llvm_shutdown() { while (StaticList) StaticList->destroy(); - if (ManagedStaticMutex) { - delete ManagedStaticMutex; - ManagedStaticMutex = 0; - } + if (llvm_is_multithreaded()) llvm_stop_multithreaded(); } |