From 30d479c28c831a0d4f1fdb54a9e346b0fc176be1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 08:23:09 +0200 Subject: Adding upstream version 1.7.2. Signed-off-by: Daniel Baumann --- locks/os2/thread_mutex.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 locks/os2/thread_mutex.c (limited to 'locks/os2/thread_mutex.c') diff --git a/locks/os2/thread_mutex.c b/locks/os2/thread_mutex.c new file mode 100644 index 0000000..fea188d --- /dev/null +++ b/locks/os2/thread_mutex.c @@ -0,0 +1,120 @@ +/* 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_general.h" +#include "apr_lib.h" +#include "apr_strings.h" +#include "apr_portable.h" +#include "apr_arch_thread_mutex.h" +#include "apr_arch_file_io.h" +#include +#include + +static apr_status_t thread_mutex_cleanup(void *themutex) +{ + apr_thread_mutex_t *mutex = themutex; + return apr_thread_mutex_destroy(mutex); +} + + + +/* XXX: Need to respect APR_THREAD_MUTEX_[UN]NESTED flags argument + * or return APR_ENOTIMPL!!! + */ +APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex, + unsigned int flags, + apr_pool_t *pool) +{ + apr_thread_mutex_t *new_mutex; + ULONG rc; + + new_mutex = (apr_thread_mutex_t *)apr_palloc(pool, sizeof(apr_thread_mutex_t)); + new_mutex->pool = pool; + + rc = DosCreateMutexSem(NULL, &(new_mutex->hMutex), 0, FALSE); + *mutex = new_mutex; + + if (!rc) + apr_pool_cleanup_register(pool, new_mutex, thread_mutex_cleanup, apr_pool_cleanup_null); + + return APR_OS2_STATUS(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex) +{ + ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_INDEFINITE_WAIT); + return APR_OS2_STATUS(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex) +{ + ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN); + + return (rc == ERROR_TIMEOUT) ? APR_EBUSY : APR_FROM_OS_ERROR(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_mutex_timedlock(apr_thread_mutex_t *mutex, + apr_interval_time_t timeout) +{ + ULONG rc; + + if (timeout <= 0) { + rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN); + } + else { + rc = DosRequestMutexSem(mutex->hMutex, apr_time_as_msec(timeout)); + } + + return (rc == ERROR_TIMEOUT) ? APR_TIMEUP : APR_FROM_OS_ERROR(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex) +{ + ULONG rc = DosReleaseMutexSem(mutex->hMutex); + return APR_OS2_STATUS(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex) +{ + ULONG rc; + + if (mutex->hMutex == 0) + return APR_SUCCESS; + + while (DosReleaseMutexSem(mutex->hMutex) == 0); + + rc = DosCloseMutexSem(mutex->hMutex); + + if (!rc) { + mutex->hMutex = 0; + return APR_SUCCESS; + } + + return APR_FROM_OS_ERROR(rc); +} + +APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex) + -- cgit v1.2.3