1 files changed, 73 insertions, 0 deletions
diff --git a/dep/src/zthread/linux/AtomicCount.cxx b/dep/src/zthread/linux/AtomicCount.cxx
new file mode 100644
index 00000000000..28c2381c3b4
--- /dev/null
+++ b/dep/src/zthread/linux/AtomicCount.cxx
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2005, Eric Crahen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __ZTATOMICCOUNTIMPL_H__
+#define __ZTATOMICCOUNTIMPL_H__
+
+#include <asm/atomic.h>
+#include <assert.h>
+
+namespace ZThread {
+
+typedef struct atomic_count_t {
+
+  atomic_t count;
+
+  atomic_count_t() {
+    atomic_t init = ATOMIC_INIT(0);
+    count = init;
+  }
+
+  ~atomic_count_t() {
+    assert(atomic_read(&count) == 0);
+  }
+
+} ATOMIC_COUNT;
+
+
+AtomicCount::AtomicCount() {
+
+  _value = reinterpret_cast<void*>(new ATOMIC_COUNT);
+  
+}
+
+AtomicCount::~AtomicCount() {
+
+  delete reinterpret_cast<ATOMIC_COUNT*>(_value);
+
+}
+  
+void AtomicCount::increment() {
+
+  atomic_inc(&reinterpret_cast<ATOMIC_COUNT*>(_value)->count);
+  
+}
+  
+bool AtomicCount::decrement() {
+
+  return atomic_dec_and_test(&reinterpret_cast<ATOMIC_COUNT*>(_value)->count);
+  
+}
+ 
+};
+
+#endif // __ZTATOMICCOUNTIMPL_H__