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/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed 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_arch_threadproc.h"
#include "apr_portable.h"
APR_DECLARE(apr_status_t) apr_threadattr_create(apr_threadattr_t **new, apr_pool_t *pool)
{
(*new) = (apr_threadattr_t *)apr_palloc(pool,
sizeof(apr_threadattr_t));
if ((*new) == NULL) {
return APR_ENOMEM;
}
(*new)->pool = pool;
(*new)->attr = (int32)B_NORMAL_PRIORITY;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr, apr_int32_t on)
{
if (on == 1){
attr->detached = 1;
} else {
attr->detached = 0;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr)
{
if (attr->detached == 1){
return APR_DETACH;
}
return APR_NOTDETACH;
}
APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr,
apr_size_t stacksize)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr,
apr_size_t size)
{
return APR_ENOTIMPL;
}
static void *dummy_worker(void *opaque)
{
apr_thread_t *thd = (apr_thread_t*)opaque;
return thd->func(thd, thd->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)
{
int32 temp;
apr_status_t stat;
(*new) = (apr_thread_t *)apr_palloc(pool, sizeof(apr_thread_t));
if ((*new) == NULL) {
return APR_ENOMEM;
}
(*new)->pool = pool;
(*new)->data = data;
(*new)->func = func;
(*new)->exitval = -1;
/* First we create the new thread...*/
if (attr)
temp = attr->attr;
else
temp = B_NORMAL_PRIORITY;
stat = apr_pool_create(&(*new)->pool, pool);
if (stat != APR_SUCCESS) {
return stat;
}
(*new)->td = spawn_thread((thread_func)dummy_worker,
"apr thread",
temp,
(*new));
/* Now we try to run it...*/
if (resume_thread((*new)->td) == B_NO_ERROR) {
return APR_SUCCESS;
}
else {
return errno;
}
}
APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void)
{
return find_thread(NULL);
}
int apr_os_thread_equal(apr_os_thread_t tid1, apr_os_thread_t tid2)
{
return tid1 == tid2;
}
APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, apr_status_t retval)
{
apr_pool_destroy(thd->pool);
thd->exitval = retval;
exit_thread ((status_t)(retval));
/* This will never be reached... */
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, apr_thread_t *thd)
{
status_t rv = 0, ret;
ret = wait_for_thread(thd->td, &rv);
if (ret == B_NO_ERROR) {
*retval = rv;
return APR_SUCCESS;
}
else {
/* if we've missed the thread's death, did we set an exit value prior
* to it's demise? If we did return that.
*/
if (thd->exitval != -1) {
*retval = thd->exitval;
return APR_SUCCESS;
} else
return ret;
}
}
APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd)
{
if (suspend_thread(thd->td) == B_NO_ERROR){
return APR_SUCCESS;
}
else {
return errno;
}
}
void apr_thread_yield()
{
}
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;
}
static apr_status_t thread_once_cleanup(void *vcontrol)
{
apr_thread_once_t *control = (apr_thread_once_t *)vcontrol;
if (control->sem) {
release_sem(control->sem);
delete_sem(control->sem);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control,
apr_pool_t *p)
{
int rc;
*control = (apr_thread_once_t *)apr_pcalloc(p, sizeof(apr_thread_once_t));
(*control)->hit = 0; /* we haven't done it yet... */
rc = ((*control)->sem = create_sem(1, "thread_once"));
if (rc < 0)
return rc;
apr_pool_cleanup_register(p, control, thread_once_cleanup, apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
void (*func)(void))
{
if (!control->hit) {
if (acquire_sem(control->sem) == B_OK) {
control->hit = 1;
func();
}
}
return APR_SUCCESS;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread)
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