1 files changed, 120 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/base/criticalsection.h b/kopete/protocols/jabber/jingle/libjingle/talk/base/criticalsection.h
new file mode 100644
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+++ b/kopete/protocols/jabber/jingle/libjingle/talk/base/criticalsection.h
@@ -0,0 +1,120 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _criticalsection_h_
+#define _criticalsection_h_
+
+#ifdef WIN32
+#include "talk/base/win32.h"
+#endif
+
+#ifdef POSIX
+#include <pthread.h>
+#endif
+
+#ifdef _DEBUG
+#define CS_TRACK_OWNER 1
+#endif  // _DEBUG
+
+#if CS_TRACK_OWNER
+#define TRACK_OWNER(x) x
+#else  // !CS_TRACK_OWNER
+#define TRACK_OWNER(x)
+#endif  // !CS_TRACK_OWNER
+
+namespace cricket {
+
+#ifdef WIN32
+class CriticalSection {
+public:
+  CriticalSection() {
+    InitializeCriticalSection(&crit_);
+    // Windows docs say 0 is not a valid thread id
+    TRACK_OWNER(thread_ = 0);
+  }
+  ~CriticalSection() {
+    DeleteCriticalSection(&crit_);
+  }
+  void Enter() {
+    EnterCriticalSection(&crit_);
+    TRACK_OWNER(thread_ = GetCurrentThreadId());
+  }
+  void Leave() {
+    TRACK_OWNER(thread_ = 0);
+    LeaveCriticalSection(&crit_);
+  }
+
+#if CS_TRACK_OWNER
+  bool CurrentThreadIsOwner() const { return thread_ == GetCurrentThreadId(); }
+#endif  // CS_TRACK_OWNER
+
+private:
+  CRITICAL_SECTION crit_;
+  TRACK_OWNER(DWORD thread_);  // The section's owning thread id
+};
+#endif // WIN32
+
+#ifdef POSIX
+class CriticalSection {
+public:
+  CriticalSection() {
+    pthread_mutexattr_t mutex_attribute;
+    pthread_mutexattr_settype(&mutex_attribute, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&mutex_, &mutex_attribute);
+  }
+  ~CriticalSection() {
+    pthread_mutex_destroy(&mutex_);
+  }
+  void Enter() {
+    pthread_mutex_lock(&mutex_);
+  }
+  void Leave() {
+    pthread_mutex_unlock(&mutex_);
+  }
+private:
+  pthread_mutex_t mutex_;
+};
+#endif // POSIX
+
+// CritScope, for serializing exection through a scope
+
+class CritScope {
+public:
+  CritScope(CriticalSection *pcrit) {
+    pcrit_ = pcrit;
+    pcrit_->Enter();
+  }
+  ~CritScope() {
+    pcrit_->Leave();
+  }
+private:
+  CriticalSection *pcrit_;
+};
+
+} // namespace cricket
+
+#endif // _criticalsection_h_