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Diffstat (limited to '')
| -rw-r--r-- | threadproc/unix/thread.c | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/threadproc/unix/thread.c b/threadproc/unix/thread.c new file mode 100644 index 0000000..6d060be --- /dev/null +++ b/threadproc/unix/thread.c @@ -0,0 +1,334 @@ +/* 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_portable.h" +#include "apr_arch_threadproc.h" + +#if APR_HAS_THREADS + +#if APR_HAVE_PTHREAD_H + +/* Destroy the threadattr object */ +static apr_status_t threadattr_cleanup(void *data) +{ + apr_threadattr_t *attr = data; + apr_status_t rv; + + rv = pthread_attr_destroy(&attr->attr); +#ifdef HAVE_ZOS_PTHREADS + if (rv) { + rv = errno; + } +#endif + return rv; +} + +APR_DECLARE(apr_status_t) apr_threadattr_create(apr_threadattr_t **new, + apr_pool_t *pool) +{ + apr_status_t stat; + + (*new) = apr_palloc(pool, sizeof(apr_threadattr_t)); + (*new)->pool = pool; + stat = pthread_attr_init(&(*new)->attr); + + if (stat == 0) { + apr_pool_cleanup_register(pool, *new, threadattr_cleanup, + apr_pool_cleanup_null); + return APR_SUCCESS; + } +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; +} + +#if defined(PTHREAD_CREATE_DETACHED) +#define DETACH_ARG(v) ((v) ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE) +#else +#define DETACH_ARG(v) ((v) ? 1 : 0) +#endif + +APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr, + apr_int32_t on) +{ + apr_status_t stat; +#ifdef HAVE_ZOS_PTHREADS + int arg = DETACH_ARG(on); + + if ((stat = pthread_attr_setdetachstate(&attr->attr, &arg)) == 0) { +#else + if ((stat = pthread_attr_setdetachstate(&attr->attr, + DETACH_ARG(on))) == 0) { +#endif + return APR_SUCCESS; + } + else { +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; + } +} + +APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr) +{ + int state; + +#ifdef PTHREAD_ATTR_GETDETACHSTATE_TAKES_ONE_ARG + state = pthread_attr_getdetachstate(&attr->attr); +#else + pthread_attr_getdetachstate(&attr->attr, &state); +#endif + if (state == DETACH_ARG(1)) + return APR_DETACH; + return APR_NOTDETACH; +} + +APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr, + apr_size_t stacksize) +{ + int stat; + + stat = pthread_attr_setstacksize(&attr->attr, stacksize); + if (stat == 0) { + return APR_SUCCESS; + } +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; +} + +APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr, + apr_size_t size) +{ +#ifdef HAVE_PTHREAD_ATTR_SETGUARDSIZE + apr_status_t rv; + + rv = pthread_attr_setguardsize(&attr->attr, size); + if (rv == 0) { + return APR_SUCCESS; + } +#ifdef HAVE_ZOS_PTHREADS + rv = errno; +#endif + return rv; +#else + return APR_ENOTIMPL; +#endif +} + +static void *dummy_worker(void *opaque) +{ + apr_thread_t *thread = (apr_thread_t*)opaque; + return thread->func(thread, thread->data); +} + +APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new, + apr_threadattr_t *attr, + apr_thread_start_t func, + void *data, + apr_pool_t *pool) +{ + apr_status_t stat; + pthread_attr_t *temp; + + (*new) = (apr_thread_t *)apr_pcalloc(pool, sizeof(apr_thread_t)); + + if ((*new) == NULL) { + return APR_ENOMEM; + } + + (*new)->td = (pthread_t *)apr_pcalloc(pool, sizeof(pthread_t)); + + if ((*new)->td == NULL) { + return APR_ENOMEM; + } + + (*new)->data = data; + (*new)->func = func; + + if (attr) + temp = &attr->attr; + else + temp = NULL; + + stat = apr_pool_create(&(*new)->pool, pool); + if (stat != APR_SUCCESS) { + return stat; + } + + if ((stat = pthread_create((*new)->td, temp, dummy_worker, (*new))) == 0) { + return APR_SUCCESS; + } + else { +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; + } +} + +APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void) +{ + return pthread_self(); +} + +APR_DECLARE(int) apr_os_thread_equal(apr_os_thread_t tid1, + apr_os_thread_t tid2) +{ + return pthread_equal(tid1, tid2); +} + +APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, + apr_status_t retval) +{ + thd->exitval = retval; + apr_pool_destroy(thd->pool); + pthread_exit(NULL); + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, + apr_thread_t *thd) +{ + apr_status_t stat; + apr_status_t *thread_stat; + + if ((stat = pthread_join(*thd->td,(void *)&thread_stat)) == 0) { + *retval = thd->exitval; + return APR_SUCCESS; + } + else { +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; + } +} + +APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd) +{ + apr_status_t stat; + +#ifdef HAVE_ZOS_PTHREADS + if ((stat = pthread_detach(thd->td)) == 0) { +#else + if ((stat = pthread_detach(*thd->td)) == 0) { +#endif + + return APR_SUCCESS; + } + else { +#ifdef HAVE_ZOS_PTHREADS + stat = errno; +#endif + + return stat; + } +} + +APR_DECLARE(void) apr_thread_yield(void) +{ +#ifdef HAVE_PTHREAD_YIELD +#ifdef HAVE_ZOS_PTHREADS + pthread_yield(NULL); +#else + pthread_yield(); +#endif /* HAVE_ZOS_PTHREADS */ +#else +#ifdef HAVE_SCHED_YIELD + sched_yield(); +#endif +#endif +} + +APR_DECLARE(apr_status_t) apr_thread_data_get(void **data, const char *key, + apr_thread_t *thread) +{ + return apr_pool_userdata_get(data, key, thread->pool); +} + +APR_DECLARE(apr_status_t) apr_thread_data_set(void *data, const char *key, + apr_status_t (*cleanup)(void *), + apr_thread_t *thread) +{ + return apr_pool_userdata_set(data, key, cleanup, thread->pool); +} + +APR_DECLARE(apr_status_t) apr_os_thread_get(apr_os_thread_t **thethd, + apr_thread_t *thd) +{ + *thethd = thd->td; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_os_thread_put(apr_thread_t **thd, + apr_os_thread_t *thethd, + apr_pool_t *pool) +{ + if (pool == NULL) { + return APR_ENOPOOL; + } + + if ((*thd) == NULL) { + (*thd) = (apr_thread_t *)apr_pcalloc(pool, sizeof(apr_thread_t)); + (*thd)->pool = pool; + } + + (*thd)->td = thethd; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control, + apr_pool_t *p) +{ + static const pthread_once_t once_init = PTHREAD_ONCE_INIT; + + *control = apr_palloc(p, sizeof(**control)); + (*control)->once = once_init; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control, + void (*func)(void)) +{ + return pthread_once(&control->once, func); +} + +APR_POOL_IMPLEMENT_ACCESSOR(thread) + +#endif /* HAVE_PTHREAD_H */ +#endif /* APR_HAS_THREADS */ + +#if !APR_HAS_THREADS + +/* avoid warning for no prototype */ +APR_DECLARE(apr_status_t) apr_os_thread_get(void); + +APR_DECLARE(apr_status_t) apr_os_thread_get(void) +{ + return APR_ENOTIMPL; +} + +#endif |