Initial community commit

Src/Wasabi/bfc/critsec.cpp

@@ -0,0 +1,73 @@
+#include "precomp_wasabi_bfc.h"
+#include "critsec.h"
+// uncomment this if needed
+//#define CS_DEBUG
+
+CriticalSection::CriticalSection() {
+#ifdef WIN32
+  InitializeCriticalSection(&cs);
+#elif defined(__APPLE__)
+  MPCreateCriticalRegion(&cr);
+#elif defined(LINUX)
+  pthread_mutex_t recursive = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+  cs.mutex = recursive;
+#endif
+
+#ifdef ASSERTS_ENABLED
+#ifdef CS_DEBUG
+  within = 0;
+#endif
+#endif
+}
+
+CriticalSection::~CriticalSection() {
+#ifdef CS_DEBUG
+#ifdef ASSERTS_ENABLED
+  ASSERT(!within);
+#endif
+#endif
+#ifdef WIN32
+  DeleteCriticalSection(&cs);
+#elif defined(__APPLE__)
+  MPDeleteCriticalRegion(cr);
+#elif defined(LINUX)
+  pthread_mutex_destroy(&cs.mutex);
+#endif
+}
+
+void CriticalSection::enter() {
+#ifdef WIN32
+  EnterCriticalSection(&cs);
+#elif defined(__APPLE__)
+  MPEnterCriticalRegion(cr, kDurationForever);
+#elif defined(LINUX)
+  pthread_mutex_lock(&cs.mutex);
+#endif
+
+#ifdef CS_DEBUG
+#ifdef ASSERTS_ENABLED
+  ASSERT(!within);
+  within = 1;
+#endif
+#endif
+}
+
+void CriticalSection::leave() {
+#if defined(CS_DEBUG) && defined(ASSERTS_ENABLED)
+  ASSERT(within);
+  within = 0;
+#endif
+
+#ifdef WIN32
+  LeaveCriticalSection(&cs);
+#elif defined(__APPLE__)
+  MPExitCriticalRegion(cr);
+#elif defined(LINUX)
+  pthread_mutex_unlock(&cs.mutex);
+#endif
+}
+
+void CriticalSection::inout() {
+  enter();
+  leave();
+}