svn commit: r801978 - /commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c

[mt...@apache.org]

Author: mturk
Date: Fri Aug  7 12:45:12 2009
New Revision: 801978

URL: http://svn.apache.org/viewvc?rev=801978&view=rev
Log:
Implement windows mutex

Added:
    commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c   (with props)

Added: commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c
URL: http://svn.apache.org/viewvc/commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c?rev=801978&view=auto
==============================================================================
--- commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c (added)
+++ commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c Fri Aug  7 12:45:12 2009
@@ -0,0 +1,148 @@
+/* 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 "acr.h"
+#include "acr_private.h"
+#include "acr_arch.h"
+#include "acr_error.h"
+#include "acr_memory.h"
+#include "acr_string.h"
+#include "acr_descriptor.h"
+#include "acr_procmutex.h"
+
+static int mutex_cleanup(void *mutex, int type, unsigned int flags)
+{
+    if (type != ACR_DT_MUTEX) {
+        if (!IS_INVALID_HANDLE(mutex))
+            CloseHandle(mutex);
+        return ACR_SUCCESS;
+    }
+    return ACR_EINVAL;
+}
+
+ACR_DECLARE(int) ACR_ProcMutexCreate(JNIEnv *_E, const acr_pchar_t *fname)
+{
+    int rc;
+    HANDLE m;
+    wchar_t *reskey;
+    wchar_t  keybuf[256];
+
+    if (fname == NULL) {
+        reskey = NULL;
+    }
+    /* Name-based shared memory */
+    else {
+        /* res_name_from_filename turns file into a pseudo-name
+         * without slashes or backslashes, and prepends the \global
+         * prefix on Win2K and later
+         */
+        reskey = res_name_from_filenamew(1, keybuf, fname);
+    }
+    m = CreateMutexW(NULL, FALSE, reskey);
+    if (!m)
+        return -1;
+
+    rc = acr_ioh_open(m, ACR_DT_MUTEX, 0, mutex_cleanup);
+    return rc;
+}
+
+ACR_DECLARE(int) ACR_ProcMutexAttach(JNIEnv *_E, const acr_pchar_t *fname)
+{
+    int rc;
+    HANDLE m;
+    wchar_t  reskey[256];
+
+    if (!fname) {
+        /* Reinitializing unnamed mutexes is a noop in the Unix code. */
+        return APR_SUCCESS;
+    }
+    /* res_name_from_filename turns file into a pseudo-name
+     * without slashes or backslashes, and prepends the \global
+     * prefix on Win2K and later
+     */
+    res_name_from_filenamew(1, reskey, fname);
+
+    m = OpenMutexW(MUTEX_ALL_ACCESS, FALSE, reskey);
+    if (!m)
+        return -1;
+
+    rc = acr_ioh_open(m, ACR_DT_MUTEX, 0, mutex_cleanup);
+    return rc;
+}
+
+ACR_DECLARE(int) ACR_ProcMutexLock(JNIEnv *_E, int mutex)
+{
+    int rc;
+    HANDLE m = (HANDLE)ACR_IOH(mutex);
+
+    if (IS_INVALID_HANDLE(m) || ACR_IOH_TYPE(mutex) != ACR_DT_MUTEX) {
+        return ACR_EINVAL;
+    }
+    rc = WaitForSingleObject(m, INFINITE);
+
+    if (rc == WAIT_OBJECT_0 || rc == WAIT_ABANDONED) {
+        return 0;
+    }
+    return ACR_GET_OS_ERROR();
+}
+
+ACR_DECLARE(int) ACR_ProcMutexTryLock(JNIEnv *_E, int mutex)
+{
+    int rc;
+    HANDLE m = (HANDLE)ACR_IOH(mutex);
+
+    if (IS_INVALID_HANDLE(m) || ACR_IOH_TYPE(mutex) != ACR_DT_MUTEX) {
+        return ACR_EINVAL;
+    }
+    rc = WaitForSingleObject(m, 0);
+
+    if (rc == WAIT_OBJECT_0 || rc == WAIT_ABANDONED) {
+        return 0;
+    }
+    else if (rc == WAIT_TIMEOUT) {
+        return ACR_EBUSY;
+    }
+    return ACR_GET_OS_ERROR();
+}
+
+ACR_DECLARE(int) ACR_ProcMutexRelease(JNIEnv *_E, int mutex)
+{
+    HANDLE m = (HANDLE)ACR_IOH(mutex);
+
+    if (IS_INVALID_HANDLE(m) || ACR_IOH_TYPE(mutex) != ACR_DT_MUTEX) {
+        return ACR_EINVAL;
+    }
+
+    if (ReleaseMutex(m) == 0) {
+        return ACR_GET_OS_ERROR();
+    }
+    return 0;
+}
+
+ACR_DECLARE(int) ACR_ProcMutexPermSet(JNIEnv *_E, int mutex, int perms,
+                                      acr_uid_t uid, acr_uid_t gid)
+{
+    return ACR_ENOTIMPL;
+}
+
+ACR_DECLARE(int) ACR_ProcMutexClose(JNIEnv *_E, int mutex)
+{
+
+    /* Close will call the cleanup function
+     */
+    return acr_ioh_close(mutex);
+}
+

Propchange: commons/sandbox/runtime/trunk/src/main/native/os/win32/pmutex.c
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