1 files changed, 136 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/locks/win32/thread_mutex.c b/rubbos/app/httpd-2.0.64/srclib/apr/locks/win32/thread_mutex.c
new file mode 100644
index 00000000..9b10d727
--- /dev/null
+++ b/rubbos/app/httpd-2.0.64/srclib/apr/locks/win32/thread_mutex.c
@@ -0,0 +1,136 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr.h"
+#include "apr_private.h"
+#include "apr_general.h"
+#include "apr_strings.h"
+#include "apr_arch_thread_mutex.h"
+#include "apr_thread_mutex.h"
+#include "apr_portable.h"
+#include "apr_arch_misc.h"
+
+static apr_status_t thread_mutex_cleanup(void *data)
+{
+    apr_thread_mutex_t *lock = data;
+
+    if (lock->type == thread_mutex_critical_section) {
+        lock->type = -1;
+        DeleteCriticalSection(&lock->section);
+    }
+    else {
+        if (!CloseHandle(lock->handle)) {
+            return apr_get_os_error();
+        }
+    }
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex,
+                                                  unsigned int flags,
+                                                  apr_pool_t *pool)
+{
+    (*mutex) = (apr_thread_mutex_t *)apr_palloc(pool, sizeof(**mutex));
+
+    (*mutex)->pool = pool;
+
+    if (flags & APR_THREAD_MUTEX_UNNESTED) {
+        /* Use an auto-reset signaled event, ready to accept one
+         * waiting thread.
+         */
+        (*mutex)->type = thread_mutex_unnested_event;
+        (*mutex)->handle = CreateEvent(NULL, FALSE, TRUE, NULL);
+    }
+    else {
+#if APR_HAS_UNICODE_FS
+        /* Critical Sections are terrific, performance-wise, on NT.
+         * On Win9x, we cannot 'try' on a critical section, so we 
+         * use a [slower] mutex object, instead.
+         */
+        IF_WIN_OS_IS_UNICODE {
+            InitializeCriticalSection(&(*mutex)->section);
+            (*mutex)->type = thread_mutex_critical_section;
+        }
+#endif
+#if APR_HAS_ANSI_FS
+        ELSE_WIN_OS_IS_ANSI {
+            (*mutex)->type = thread_mutex_nested_mutex;
+            (*mutex)->handle = CreateMutex(NULL, FALSE, NULL);
+
+        }
+#endif
+    }
+
+    apr_pool_cleanup_register((*mutex)->pool, (*mutex), thread_mutex_cleanup,
+                              apr_pool_cleanup_null);
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
+{
+    if (mutex->type == thread_mutex_critical_section) {
+        EnterCriticalSection(&mutex->section);
+    }
+    else {
+        DWORD rv = WaitForSingleObject(mutex->handle, INFINITE);
+	if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) {
+            return (rv == WAIT_TIMEOUT) ? APR_EBUSY : apr_get_os_error();
+	}
+    }        
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
+{
+    if (mutex->type == thread_mutex_critical_section) {
+        if (!TryEnterCriticalSection(&mutex->section)) {
+            return APR_EBUSY;
+        }
+    }
+    else {
+        DWORD rv = WaitForSingleObject(mutex->handle, 0);
+	if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) {
+            return (rv == WAIT_TIMEOUT) ? APR_EBUSY : apr_get_os_error();
+	}
+    }        
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
+{
+    if (mutex->type == thread_mutex_critical_section) {
+        LeaveCriticalSection(&mutex->section);
+    }
+    else if (mutex->type == thread_mutex_unnested_event) {
+        if (!SetEvent(mutex->handle)) {
+            return apr_get_os_error();
+        }
+    }
+    else if (mutex->type == thread_mutex_nested_mutex) {
+        if (!ReleaseMutex(mutex->handle)) {
+            return apr_get_os_error();
+        }
+    }
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
+{
+    return apr_pool_cleanup_run(mutex->pool, mutex, thread_mutex_cleanup);
+}
+
+APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
+