From 20d28e80a5c861a9d5f449ea911ab75b4f37ad0d Mon Sep 17 00:00:00 2001
From: Jef <jef@targetspot.com>
Date: Tue, 24 Sep 2024 14:54:57 +0200
Subject: Initial community commit

---
 Src/Wasabi/bfc/critsec.cpp | 73 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Src/Wasabi/bfc/critsec.cpp

(limited to 'Src/Wasabi/bfc/critsec.cpp')

diff --git a/Src/Wasabi/bfc/critsec.cpp b/Src/Wasabi/bfc/critsec.cpp
new file mode 100644
index 00000000..e7506371
--- /dev/null
+++ b/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();
+}
-- 
cgit