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/* 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.
*/
#define INCL_DOSERRORS
#define INCL_DOS
#include "apr_arch_threadproc.h"
#include "apr_thread_proc.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_portable.h"
#include "apr_arch_file_io.h"
#include <stdlib.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 = 0;
(*new)->stacksize = 0;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr, apr_int32_t on)
{
attr->attr |= APR_THREADATTR_DETACHED;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr)
{
return (attr->attr & APR_THREADATTR_DETACHED) ? APR_DETACH : APR_NOTDETACH;
}
APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr,
apr_size_t stacksize)
{
attr->stacksize = stacksize;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr,
apr_size_t size)
{
return APR_ENOTIMPL;
}
static void apr_thread_begin(void *arg)
{
apr_thread_t *thread = (apr_thread_t *)arg;
thread->exitval = 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;
apr_thread_t *thread;
thread = (apr_thread_t *)apr_palloc(pool, sizeof(apr_thread_t));
*new = thread;
if (thread == NULL) {
return APR_ENOMEM;
}
thread->attr = attr;
thread->func = func;
thread->data = data;
stat = apr_pool_create(&thread->pool, pool);
if (stat != APR_SUCCESS) {
return stat;
}
if (attr == NULL) {
stat = apr_threadattr_create(&thread->attr, thread->pool);
if (stat != APR_SUCCESS) {
return stat;
}
}
thread->tid = _beginthread(apr_thread_begin, NULL,
thread->attr->stacksize > 0 ?
thread->attr->stacksize : APR_THREAD_STACKSIZE,
thread);
if (thread->tid < 0) {
return errno;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void)
{
PIB *ppib;
TIB *ptib;
DosGetInfoBlocks(&ptib, &ppib);
return ptib->tib_ptib2->tib2_ultid;
}
APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, apr_status_t retval)
{
thd->exitval = retval;
_endthread();
return -1; /* If we get here something's wrong */
}
APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, apr_thread_t *thd)
{
ULONG rc;
TID waittid = thd->tid;
if (thd->attr->attr & APR_THREADATTR_DETACHED)
return APR_EINVAL;
rc = DosWaitThread(&waittid, DCWW_WAIT);
if (rc == ERROR_INVALID_THREADID)
rc = 0; /* Thread had already terminated */
*retval = thd->exitval;
return APR_OS2_STATUS(rc);
}
APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd)
{
thd->attr->attr |= APR_THREADATTR_DETACHED;
return APR_SUCCESS;
}
void apr_thread_yield()
{
DosSleep(0);
}
APR_DECLARE(apr_status_t) apr_os_thread_get(apr_os_thread_t **thethd, apr_thread_t *thd)
{
*thethd = &thd->tid;
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 ((*thd) == NULL) {
(*thd) = (apr_thread_t *)apr_pcalloc(pool, sizeof(apr_thread_t));
(*thd)->pool = pool;
}
(*thd)->tid = *thethd;
return APR_SUCCESS;
}
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_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_POOL_IMPLEMENT_ACCESSOR(thread)
static apr_status_t thread_once_cleanup(void *vcontrol)
{
apr_thread_once_t *control = (apr_thread_once_t *)vcontrol;
if (control->sem) {
DosCloseEventSem(control->sem);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control,
apr_pool_t *p)
{
ULONG rc;
*control = (apr_thread_once_t *)apr_pcalloc(p, sizeof(apr_thread_once_t));
rc = DosCreateEventSem(NULL, &(*control)->sem, 0, TRUE);
apr_pool_cleanup_register(p, control, thread_once_cleanup, apr_pool_cleanup_null);
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
void (*func)(void))
{
if (!control->hit) {
ULONG count, rc;
rc = DosResetEventSem(control->sem, &count);
if (rc == 0 && count) {
control->hit = 1;
func();
}
}
return APR_SUCCESS;
}
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