[llvm] r175398 - Add multithreading functions and shutdown to the C API. Patch by Moritz

[Duncan Sands]

Author: baldrick
Date: Sun Feb 17 10:35:51 2013
New Revision: 175398

URL: http://llvm.org/viewvc/llvm-project?rev=175398&view=rev
Log:
Add multithreading functions and shutdown to the C API.  Patch by Moritz
Maxeiner.

Modified:
    llvm/trunk/include/llvm-c/Core.h
    llvm/trunk/lib/IR/Core.cpp

Modified: llvm/trunk/include/llvm-c/Core.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm-c/Core.h?rev=175398&r1=175397&r2=175398&view=diff
==============================================================================
--- llvm/trunk/include/llvm-c/Core.h (original)
+++ llvm/trunk/include/llvm-c/Core.h Sun Feb 17 10:35:51 2013
@@ -358,6 +358,11 @@ typedef enum {
 
 void LLVMInitializeCore(LLVMPassRegistryRef R);
 
+/** Deallocate and destroy all ManagedStatic variables.
+    @see llvm::llvm_shutdown
+    @see ManagedStatic */
+void LLVMShutdown();
+
 
 /*===-- Error handling ----------------------------------------------------===*/
 
@@ -2624,6 +2629,34 @@ void LLVMDisposePassManager(LLVMPassMana
 
 /**
  * @}
+ */
+
+/**
+ * @defgroup LLVMCCoreThreading Threading
+ *
+ * Handle the structures needed to make LLVM safe for multithreading.
+ *
+ * @{
+ */
+
+/** Allocate and initialize structures needed to make LLVM safe for
+    multithreading. The return value indicates whether multithreaded
+    initialization succeeded. Must be executed in isolation from all
+    other LLVM api calls.
+    @see llvm::llvm_start_multithreaded */
+LLVMBool LLVMStartMultithreaded();
+
+/** Deallocate structures necessary to make LLVM safe for multithreading.
+    Must be executed in isolation from all other LLVM api calls.
+    @see llvm::llvm_stop_multithreaded */
+void LLVMStopMultithreaded();
+
+/** Check whether LLVM is executing in thread-safe mode or not.
+    @see llvm::llvm_is_multithreaded */
+LLVMBool LLVMIsMultithreaded();
+
+/**
+ * @}
  */
 
 /**

Modified: llvm/trunk/lib/IR/Core.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Core.cpp?rev=175398&r1=175397&r2=175398&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Core.cpp (original)
+++ llvm/trunk/lib/IR/Core.cpp Sun Feb 17 10:35:51 2013
@@ -26,9 +26,11 @@
 #include "llvm/Support/CallSite.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/system_error.h"
+#include "llvm/Support/Threading.h"
 #include <cassert>
 #include <cstdlib>
 #include <cstring>
@@ -48,6 +50,10 @@ void LLVMInitializeCore(LLVMPassRegistry
   initializeCore(*unwrap(R));
 }
 
+void LLVMShutdown() {
+  llvm_shutdown();
+}
+
 /*===-- Error handling ----------------------------------------------------===*/
 
 void LLVMDisposeMessage(char *Message) {
@@ -2436,3 +2442,17 @@ LLVMBool LLVMFinalizeFunctionPassManager
 void LLVMDisposePassManager(LLVMPassManagerRef PM) {
   delete unwrap(PM);
 }
+
+/*===-- Threading ------------------------------------------------------===*/
+
+LLVMBool LLVMStartMultithreaded() {
+  return llvm_start_multithreaded();
+}
+
+void LLVMStopMultithreaded() {
+  llvm_stop_multithreaded();
+}
+
+LLVMBool LLVMIsMultithreaded() {
+  return llvm_is_multithreaded();
+}