feat:replace boost library with C++11 std library

This commit is contained in:
Livox-SDK
2020-04-01 20:53:55 +08:00
parent 6d06233944
commit d3258bbd97
1936 changed files with 241862 additions and 60153 deletions
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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.
*/
/*Read/Write locking implementation based on the MultiLock code from
* Stephen Beaulieu <hippo@be.com>
*/
#include "apr_arch_proc_mutex.h"
#include "apr_strings.h"
#include "apr_portable.h"
static apr_status_t _proc_mutex_cleanup(void * data)
{
apr_proc_mutex_t *lock = (apr_proc_mutex_t*)data;
if (lock->LockCount != 0) {
/* we're still locked... */
while (atomic_add(&lock->LockCount , -1) > 1){
/* OK we had more than one person waiting on the lock so
* the sem is also locked. Release it until we have no more
* locks left.
*/
release_sem (lock->Lock);
}
}
delete_sem(lock->Lock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex,
const char *fname,
apr_lockmech_e mech,
apr_pool_t *pool)
{
apr_proc_mutex_t *new;
apr_status_t stat = APR_SUCCESS;
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
new = (apr_proc_mutex_t *)apr_pcalloc(pool, sizeof(apr_proc_mutex_t));
if (new == NULL){
return APR_ENOMEM;
}
if ((stat = create_sem(0, "APR_Lock")) < B_NO_ERROR) {
_proc_mutex_cleanup(new);
return stat;
}
new->LockCount = 0;
new->Lock = stat;
new->pool = pool;
apr_pool_cleanup_register(new->pool, (void *)new, _proc_mutex_cleanup,
apr_pool_cleanup_null);
(*mutex) = new;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex,
const char *fname,
apr_pool_t *pool)
{
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex)
{
int32 stat;
if (atomic_add(&mutex->LockCount, 1) > 0) {
if ((stat = acquire_sem(mutex->Lock)) < B_NO_ERROR) {
atomic_add(&mutex->LockCount, -1);
return stat;
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex)
{
int32 stat;
if (atomic_add(&mutex->LockCount, -1) > 1) {
if ((stat = release_sem(mutex->Lock)) < B_NO_ERROR) {
atomic_add(&mutex->LockCount, 1);
return stat;
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex)
{
apr_status_t stat;
if ((stat = _proc_mutex_cleanup(mutex)) == APR_SUCCESS) {
apr_pool_cleanup_kill(mutex->pool, mutex, _proc_mutex_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *mutex)
{
return _proc_mutex_cleanup(mutex);
}
APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex)
{
return NULL;
}
APR_DECLARE(apr_lockmech_e) apr_proc_mutex_mech(apr_proc_mutex_t *mutex)
{
return APR_LOCK_DEFAULT;
}
APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex)
{
return "beossem";
}
APR_DECLARE(const char *) apr_proc_mutex_defname(void)
{
return "beossem";
}
APR_PERMS_SET_ENOTIMPL(proc_mutex)
APR_POOL_IMPLEMENT_ACCESSOR(proc_mutex)
/* Implement OS-specific accessors defined in apr_portable.h */
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get_ex(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex,
apr_lockmech_e *mech)
{
ospmutex->sem = pmutex->Lock;
ospmutex->ben = pmutex->LockCount;
if (mech) {
*mech = APR_LOCK_DEFAULT;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex)
{
return apr_os_proc_mutex_get_ex(ospmutex, pmutex, NULL);
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put_ex(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_lockmech_e mech,
int register_cleanup,
apr_pool_t *pool)
{
if (pool == NULL) {
return APR_ENOPOOL;
}
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
if ((*pmutex) == NULL) {
(*pmutex) = (apr_proc_mutex_t *)apr_pcalloc(pool, sizeof(apr_proc_mutex_t));
(*pmutex)->pool = pool;
}
(*pmutex)->Lock = ospmutex->sem;
(*pmutex)->LockCount = ospmutex->ben;
if (register_cleanup) {
apr_pool_cleanup_register(pool, *pmutex, _proc_mutex_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_pool_t *pool)
{
return apr_os_proc_mutex_put_ex(pmutex, ospmutex, APR_LOCK_DEFAULT,
0, pool);
}
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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.
*/
#include "apr_arch_thread_mutex.h"
#include "apr_arch_thread_cond.h"
#include "apr_strings.h"
#include "apr_portable.h"
static apr_status_t thread_cond_cleanup(void *data)
{
struct waiter *w;
apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
acquire_sem(cond->lock);
delete_sem(cond->lock);
return APR_SUCCESS;
}
static struct waiter_t *make_waiter(apr_pool_t *pool)
{
struct waiter_t *w = (struct waiter_t*)
apr_palloc(pool, sizeof(struct waiter_t));
if (w == NULL)
return NULL;
w->sem = create_sem(0, "apr conditional waiter");
if (w->sem < 0)
return NULL;
APR_RING_ELEM_INIT(w, link);
return w;
}
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
apr_thread_cond_t *new_cond;
sem_id rv;
int i;
new_cond = (apr_thread_cond_t *)apr_palloc(pool, sizeof(apr_thread_cond_t));
if (new_cond == NULL)
return APR_ENOMEM;
if ((rv = create_sem(1, "apr conditional lock")) < B_OK)
return rv;
new_cond->lock = rv;
new_cond->pool = pool;
APR_RING_INIT(&new_cond->alist, waiter_t, link);
APR_RING_INIT(&new_cond->flist, waiter_t, link);
for (i=0;i < 10 ;i++) {
struct waiter_t *nw = make_waiter(pool);
APR_RING_INSERT_TAIL(&new_cond->flist, nw, waiter_t, link);
}
apr_pool_cleanup_register(new_cond->pool,
(void *)new_cond, thread_cond_cleanup,
apr_pool_cleanup_null);
*cond = new_cond;
return APR_SUCCESS;
}
static apr_status_t do_wait(apr_thread_cond_t *cond, apr_thread_mutex_t *mutex,
int timeout)
{
struct waiter_t *wait;
thread_id cth = find_thread(NULL);
apr_status_t rv;
int flags = B_RELATIVE_TIMEOUT;
/* We must be the owner of the mutex or we can't do this... */
if (mutex->owner != cth) {
/* What should we return??? */
return APR_EINVAL;
}
acquire_sem(cond->lock);
wait = APR_RING_FIRST(&cond->flist);
if (wait)
APR_RING_REMOVE(wait, link);
else
wait = make_waiter(cond->pool);
APR_RING_INSERT_TAIL(&cond->alist, wait, waiter_t, link);
cond->condlock = mutex;
release_sem(cond->lock);
apr_thread_mutex_unlock(cond->condlock);
if (timeout == 0)
flags = 0;
rv = acquire_sem_etc(wait->sem, 1, flags, timeout);
apr_thread_mutex_lock(cond->condlock);
if (rv != B_OK) {
if (rv == B_TIMED_OUT)
return APR_TIMEUP;
return rv;
}
acquire_sem(cond->lock);
APR_RING_REMOVE(wait, link);
APR_RING_INSERT_TAIL(&cond->flist, wait, waiter_t, link);
release_sem(cond->lock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
return do_wait(cond, mutex, 0);
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout)
{
return do_wait(cond, mutex, timeout);
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
struct waiter_t *wake;
acquire_sem(cond->lock);
if (!APR_RING_EMPTY(&cond->alist, waiter_t, link)) {
wake = APR_RING_FIRST(&cond->alist);
APR_RING_REMOVE(wake, link);
release_sem(wake->sem);
APR_RING_INSERT_TAIL(&cond->flist, wake, waiter_t, link);
}
release_sem(cond->lock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
struct waiter_t *wake;
acquire_sem(cond->lock);
while (! APR_RING_EMPTY(&cond->alist, waiter_t, link)) {
wake = APR_RING_FIRST(&cond->alist);
APR_RING_REMOVE(wake, link);
release_sem(wake->sem);
APR_RING_INSERT_TAIL(&cond->flist, wake, waiter_t, link);
}
release_sem(cond->lock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
apr_status_t stat;
if ((stat = thread_cond_cleanup(cond)) == APR_SUCCESS) {
apr_pool_cleanup_kill(cond->pool, cond, thread_cond_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
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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.
*/
/*Read/Write locking implementation based on the MultiLock code from
* Stephen Beaulieu <hippo@be.com>
*/
#include "apr_arch_thread_mutex.h"
#include "apr_strings.h"
#include "apr_portable.h"
static apr_status_t _thread_mutex_cleanup(void * data)
{
apr_thread_mutex_t *lock = (apr_thread_mutex_t*)data;
if (lock->LockCount != 0) {
/* we're still locked... */
while (atomic_add(&lock->LockCount , -1) > 1){
/* OK we had more than one person waiting on the lock so
* the sem is also locked. Release it until we have no more
* locks left.
*/
release_sem (lock->Lock);
}
}
delete_sem(lock->Lock);
return APR_SUCCESS;
}
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_m;
apr_status_t stat = APR_SUCCESS;
new_m = (apr_thread_mutex_t *)apr_pcalloc(pool, sizeof(apr_thread_mutex_t));
if (new_m == NULL){
return APR_ENOMEM;
}
if ((stat = create_sem(0, "APR_Lock")) < B_NO_ERROR) {
_thread_mutex_cleanup(new_m);
return stat;
}
new_m->LockCount = 0;
new_m->Lock = stat;
new_m->pool = pool;
/* Optimal default is APR_THREAD_MUTEX_UNNESTED,
* no additional checks required for either flag.
*/
new_m->nested = flags & APR_THREAD_MUTEX_NESTED;
apr_pool_cleanup_register(new_m->pool, (void *)new_m, _thread_mutex_cleanup,
apr_pool_cleanup_null);
(*mutex) = new_m;
return APR_SUCCESS;
}
#if APR_HAS_CREATE_LOCKS_NP
APR_DECLARE(apr_status_t) apr_thread_mutex_create_np(apr_thread_mutex_t **mutex,
const char *fname,
apr_lockmech_e_np mech,
apr_pool_t *pool)
{
return APR_ENOTIMPL;
}
#endif
APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
{
int32 stat;
thread_id me = find_thread(NULL);
if (mutex->nested && mutex->owner == me) {
mutex->owner_ref++;
return APR_SUCCESS;
}
if (atomic_add(&mutex->LockCount, 1) > 0) {
if ((stat = acquire_sem(mutex->Lock)) < B_NO_ERROR) {
/* Oh dear, acquire_sem failed!! */
atomic_add(&mutex->LockCount, -1);
return stat;
}
}
mutex->owner = me;
mutex->owner_ref = 1;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
{
int32 stat;
if (mutex->nested && mutex->owner == find_thread(NULL)) {
mutex->owner_ref--;
if (mutex->owner_ref > 0)
return APR_SUCCESS;
}
if (atomic_add(&mutex->LockCount, -1) > 1) {
if ((stat = release_sem(mutex->Lock)) < B_NO_ERROR) {
atomic_add(&mutex->LockCount, 1);
return stat;
}
}
mutex->owner = -1;
mutex->owner_ref = 0;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
{
apr_status_t stat;
if ((stat = _thread_mutex_cleanup(mutex)) == APR_SUCCESS) {
apr_pool_cleanup_kill(mutex->pool, mutex, _thread_mutex_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
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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.
*/
/*Read/Write locking implementation based on the MultiLock code from
* Stephen Beaulieu <hippo@be.com>
*/
#include "apr_arch_thread_rwlock.h"
#include "apr_strings.h"
#include "apr_portable.h"
#define BIG_NUM 100000
static apr_status_t _thread_rw_cleanup(void * data)
{
apr_thread_rwlock_t *mutex = (apr_thread_rwlock_t*)data;
if (mutex->ReadCount != 0) {
while (atomic_add(&mutex->ReadCount , -1) > 1){
release_sem (mutex->Read);
}
}
if (mutex->WriteCount != 0) {
while (atomic_add(&mutex->WriteCount , -1) > 1){
release_sem (mutex->Write);
}
}
if (mutex->LockCount != 0) {
while (atomic_add(&mutex->LockCount , -1) > 1){
release_sem (mutex->Lock);
}
}
delete_sem(mutex->Read);
delete_sem(mutex->Write);
delete_sem(mutex->Lock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
apr_thread_rwlock_t *new;
new = (apr_thread_rwlock_t *)apr_pcalloc(pool, sizeof(apr_thread_rwlock_t));
if (new == NULL){
return APR_ENOMEM;
}
new->pool = pool;
/* we need to make 3 locks... */
new->ReadCount = 0;
new->WriteCount = 0;
new->LockCount = 0;
new->Read = create_sem(0, "APR_ReadLock");
new->Write = create_sem(0, "APR_WriteLock");
new->Lock = create_sem(0, "APR_Lock");
if (new->Lock < 0 || new->Read < 0 || new->Write < 0) {
_thread_rw_cleanup(new);
return -1;
}
apr_pool_cleanup_register(new->pool, (void *)new, _thread_rw_cleanup,
apr_pool_cleanup_null);
(*rwlock) = new;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
int32 rv = APR_SUCCESS;
if (find_thread(NULL) == rwlock->writer) {
/* we're the writer - no problem */
rwlock->Nested++;
} else {
/* we're not the writer */
int32 r = atomic_add(&rwlock->ReadCount, 1);
if (r < 0) {
/* Oh dear, writer holds lock, wait for sem */
rv = acquire_sem_etc(rwlock->Read, 1, B_DO_NOT_RESCHEDULE,
B_INFINITE_TIMEOUT);
}
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
int rv = APR_SUCCESS;
if (find_thread(NULL) == rwlock->writer) {
rwlock->Nested++;
} else {
/* we're not the writer... */
if (atomic_add(&rwlock->LockCount, 1) >= 1) {
/* we're locked - acquire the sem */
rv = acquire_sem_etc(rwlock->Lock, 1, B_DO_NOT_RESCHEDULE,
B_INFINITE_TIMEOUT);
}
if (rv == APR_SUCCESS) {
/* decrement the ReadCount to a large -ve number so that
* we block on new readers...
*/
int32 readers = atomic_add(&rwlock->ReadCount, -BIG_NUM);
if (readers > 0) {
/* readers are holding the lock */
rv = acquire_sem_etc(rwlock->Write, readers, B_DO_NOT_RESCHEDULE,
B_INFINITE_TIMEOUT);
}
if (rv == APR_SUCCESS)
rwlock->writer = find_thread(NULL);
}
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t rv = APR_SUCCESS;
int32 readers;
/* we know we hold the lock, so don't check it :) */
if (find_thread(NULL) == rwlock->writer) {
/* we know we hold the lock, so don't check it :) */
if (rwlock->Nested > 1) {
/* we're recursively locked */
rwlock->Nested--;
return APR_SUCCESS;
}
/* OK so we need to release the sem if we have it :) */
readers = atomic_add(&rwlock->ReadCount, BIG_NUM) + BIG_NUM;
if (readers > 0) {
rv = release_sem_etc(rwlock->Read, readers, B_DO_NOT_RESCHEDULE);
}
if (rv == APR_SUCCESS) {
rwlock->writer = -1;
if (atomic_add(&rwlock->LockCount, -1) > 1) {
rv = release_sem_etc(rwlock->Lock, 1, B_DO_NOT_RESCHEDULE);
}
}
} else {
/* We weren't the Writer, so just release the ReadCount... */
if (atomic_add(&rwlock->ReadCount, -1) < 0) {
/* we have a writer waiting for the lock, so release it */
rv = release_sem_etc(rwlock->Write, 1, B_DO_NOT_RESCHEDULE);
}
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
if ((stat = _thread_rw_cleanup(rwlock)) == APR_SUCCESS) {
apr_pool_cleanup_kill(rwlock->pool, rwlock, _thread_rw_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock)
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_portable.h"
#include "apr_arch_proc_mutex.h"
#include "apr_arch_thread_mutex.h"
APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex,
const char *fname,
apr_lockmech_e mech,
apr_pool_t *pool)
{
apr_status_t ret;
apr_proc_mutex_t *new_mutex = NULL;
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
new_mutex = (apr_proc_mutex_t *)apr_pcalloc(pool, sizeof(apr_proc_mutex_t));
if (new_mutex == NULL) {
return APR_ENOMEM;
}
new_mutex->pool = pool;
ret = apr_thread_mutex_create(&(new_mutex->mutex), APR_THREAD_MUTEX_DEFAULT, pool);
if (ret == APR_SUCCESS)
*mutex = new_mutex;
return ret;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex,
const char *fname,
apr_pool_t *pool)
{
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex)
{
if (mutex)
return apr_thread_mutex_lock(mutex->mutex);
return APR_ENOLOCK;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex)
{
if (mutex)
return apr_thread_mutex_trylock(mutex->mutex);
return APR_ENOLOCK;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex)
{
if (mutex)
return apr_thread_mutex_unlock(mutex->mutex);
return APR_ENOLOCK;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *mutex)
{
return apr_proc_mutex_destroy(mutex);
}
APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex)
{
if (mutex)
return apr_thread_mutex_destroy(mutex->mutex);
return APR_ENOLOCK;
}
APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex)
{
return NULL;
}
APR_DECLARE(apr_lockmech_e) apr_proc_mutex_mech(apr_proc_mutex_t *mutex)
{
return APR_LOCK_DEFAULT;
}
APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex)
{
return "netwarethread";
}
APR_DECLARE(const char *) apr_proc_mutex_defname(void)
{
return "netwarethread";
}
APR_PERMS_SET_ENOTIMPL(proc_mutex)
APR_POOL_IMPLEMENT_ACCESSOR(proc_mutex)
/* Implement OS-specific accessors defined in apr_portable.h */
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get_ex(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex,
apr_lockmech_e *mech)
{
if (pmutex && pmutex->mutex)
ospmutex = pmutex->mutex->mutex;
return APR_ENOLOCK;
#if 0
/* We need to change apr_os_proc_mutex_t to a pointer type
* to be able to implement this function.
*/
*ospmutex = pmutex->mutex->mutex;
if (mech) {
*mech = APR_LOCK_DEFAULT;
}
return APR_SUCCESS;
#endif
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex)
{
return apr_os_proc_mutex_get_ex(ospmutex, pmutex, NULL);
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put_ex(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_lockmech_e mech,
int register_cleanup,
apr_pool_t *pool)
{
if (pool == NULL) {
return APR_ENOPOOL;
}
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
#if 0
/* We need to change apr_os_proc_mutex_t to a pointer type
* to be able to implement this function.
*/
if ((*pmutex) == NULL) {
(*pmutex) = apr_pcalloc(pool, sizeof(apr_proc_mutex_t));
(*pmutex)->pool = pool;
}
(*pmutex)->mutex = apr_pcalloc(pool, sizeof(apr_thread_mutex_t));
(*pmutex)->mutex->mutex = *ospmutex;
(*pmutex)->mutex->pool = pool;
if (register_cleanup) {
apr_pool_cleanup_register(pool, *pmutex, apr_proc_mutex_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
#else
return APR_ENOTIMPL;
#endif
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_pool_t *pool)
{
return apr_os_proc_mutex_put_ex(pmutex, ospmutex, APR_LOCK_DEFAULT,
0, pool);
}
+100
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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.
*/
#include <nks/errno.h>
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_mutex.h"
#include "apr_arch_thread_cond.h"
#include "apr_portable.h"
static apr_status_t thread_cond_cleanup(void *data)
{
apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
NXCondFree(cond->cond);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
apr_thread_cond_t *new_cond = NULL;
new_cond = (apr_thread_cond_t *)apr_pcalloc(pool, sizeof(apr_thread_cond_t));
if(new_cond ==NULL) {
return APR_ENOMEM;
}
new_cond->pool = pool;
new_cond->cond = NXCondAlloc(NULL);
if(new_cond->cond == NULL)
return APR_ENOMEM;
apr_pool_cleanup_register(new_cond->pool, new_cond,
(void*)thread_cond_cleanup,
apr_pool_cleanup_null);
*cond = new_cond;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
if (NXCondWait(cond->cond, mutex->mutex) != 0)
return APR_EINTR;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout){
if (NXCondTimedWait(cond->cond, mutex->mutex,
(timeout*1000)/NXGetSystemTick()) == NX_ETIMEDOUT) {
return APR_TIMEUP;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
NXCondSignal(cond->cond);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
NXCondBroadcast(cond->cond);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
apr_status_t stat;
if ((stat = thread_cond_cleanup(cond)) == APR_SUCCESS) {
apr_pool_cleanup_kill(cond->pool, cond, thread_cond_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
+92
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_mutex.h"
#include "apr_portable.h"
static apr_status_t thread_mutex_cleanup(void *data)
{
apr_thread_mutex_t *mutex = (apr_thread_mutex_t *)data;
NXMutexFree(mutex->mutex);
return APR_SUCCESS;
}
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 = NULL;
/* XXX: Implement _UNNESTED flavor and favor _DEFAULT for performance
*/
if (flags & APR_THREAD_MUTEX_UNNESTED) {
return APR_ENOTIMPL;
}
new_mutex = (apr_thread_mutex_t *)apr_pcalloc(pool, sizeof(apr_thread_mutex_t));
if(new_mutex ==NULL) {
return APR_ENOMEM;
}
new_mutex->pool = pool;
new_mutex->mutex = NXMutexAlloc(NX_MUTEX_RECURSIVE, 0, NULL);
if(new_mutex->mutex == NULL)
return APR_ENOMEM;
apr_pool_cleanup_register(new_mutex->pool, new_mutex,
(void*)thread_mutex_cleanup,
apr_pool_cleanup_null);
*mutex = new_mutex;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
{
NXLock(mutex->mutex);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
{
if (!NXTryLock(mutex->mutex))
return APR_EBUSY;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
{
NXUnlock(mutex->mutex);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
{
apr_status_t stat;
if ((stat = thread_mutex_cleanup(mutex)) == APR_SUCCESS) {
apr_pool_cleanup_kill(mutex->pool, mutex, thread_mutex_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
+102
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_rwlock.h"
#include "apr_portable.h"
static apr_status_t thread_rwlock_cleanup(void *data)
{
apr_thread_rwlock_t *rwlock = (apr_thread_rwlock_t *)data;
NXRwLockFree (rwlock->rwlock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
apr_thread_rwlock_t *new_rwlock = NULL;
NXHierarchy_t hierarchy = 1; /* for libc NKS NXRwLockAlloc */
NXLockInfo_t *info; /* for libc NKS NXRwLockAlloc */
new_rwlock = (apr_thread_rwlock_t *)apr_pcalloc(pool, sizeof(apr_thread_rwlock_t));
if(new_rwlock ==NULL) {
return APR_ENOMEM;
}
new_rwlock->pool = pool;
info = (NXLockInfo_t *)apr_pcalloc(pool, sizeof(NXLockInfo_t));
new_rwlock->rwlock = NXRwLockAlloc(hierarchy, info);
if(new_rwlock->rwlock == NULL)
return APR_ENOMEM;
apr_pool_cleanup_register(new_rwlock->pool, new_rwlock, thread_rwlock_cleanup,
apr_pool_cleanup_null);
*rwlock = new_rwlock;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
NXRdLock(rwlock->rwlock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
if (!NXTryRdLock(rwlock->rwlock))
return APR_EBUSY;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
NXWrLock(rwlock->rwlock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
if (!NXTryWrLock(rwlock->rwlock))
return APR_EBUSY;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
NXRwUnlock(rwlock->rwlock);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
if ((stat = thread_rwlock_cleanup(rwlock)) == APR_SUCCESS) {
apr_pool_cleanup_kill(rwlock->pool, rwlock, thread_rwlock_cleanup);
return APR_SUCCESS;
}
return stat;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock)
+267
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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.
*/
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include "apr_portable.h"
#include "apr_arch_proc_mutex.h"
#include "apr_arch_file_io.h"
#include <string.h>
#include <stddef.h>
#define CurrentTid (*_threadid)
static char *fixed_name(const char *fname, apr_pool_t *pool)
{
char *semname;
if (fname == NULL)
semname = NULL;
else {
/* Semaphores don't live in the file system, fix up the name */
while (*fname == '/' || *fname == '\\') {
fname++;
}
semname = apr_pstrcat(pool, "/SEM32/", fname, NULL);
if (semname[8] == ':') {
semname[8] = '$';
}
}
return semname;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *vmutex)
{
apr_proc_mutex_t *mutex = vmutex;
return apr_proc_mutex_destroy(mutex);
}
APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex)
{
return NULL;
}
APR_DECLARE(apr_lockmech_e) apr_proc_mutex_mech(apr_proc_mutex_t *mutex)
{
return APR_LOCK_DEFAULT;
}
APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex)
{
return "os2sem";
}
APR_DECLARE(const char *) apr_proc_mutex_defname(void)
{
return "os2sem";
}
APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex,
const char *fname,
apr_lockmech_e mech,
apr_pool_t *pool)
{
apr_proc_mutex_t *new;
ULONG rc;
char *semname;
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
new = (apr_proc_mutex_t *)apr_palloc(pool, sizeof(apr_proc_mutex_t));
new->pool = pool;
new->owner = 0;
new->lock_count = 0;
*mutex = new;
semname = fixed_name(fname, pool);
rc = DosCreateMutexSem(semname, &(new->hMutex), DC_SEM_SHARED, FALSE);
if (!rc) {
apr_pool_cleanup_register(pool, new, apr_proc_mutex_cleanup, apr_pool_cleanup_null);
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex,
const char *fname,
apr_pool_t *pool)
{
apr_proc_mutex_t *new;
ULONG rc;
char *semname;
new = (apr_proc_mutex_t *)apr_palloc(pool, sizeof(apr_proc_mutex_t));
new->pool = pool;
new->owner = 0;
new->lock_count = 0;
semname = fixed_name(fname, pool);
rc = DosOpenMutexSem(semname, &(new->hMutex));
*mutex = new;
if (!rc) {
apr_pool_cleanup_register(pool, new, apr_proc_mutex_cleanup, apr_pool_cleanup_null);
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex)
{
ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_INDEFINITE_WAIT);
if (rc == 0) {
mutex->owner = CurrentTid;
mutex->lock_count++;
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex)
{
ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN);
if (rc == 0) {
mutex->owner = CurrentTid;
mutex->lock_count++;
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex)
{
ULONG rc;
if (mutex->owner == CurrentTid && mutex->lock_count > 0) {
mutex->lock_count--;
rc = DosReleaseMutexSem(mutex->hMutex);
return APR_FROM_OS_ERROR(rc);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex)
{
ULONG rc;
apr_status_t status = APR_SUCCESS;
if (mutex->owner == CurrentTid) {
while (mutex->lock_count > 0 && status == APR_SUCCESS) {
status = apr_proc_mutex_unlock(mutex);
}
}
if (status != APR_SUCCESS) {
return status;
}
if (mutex->hMutex == 0) {
return APR_SUCCESS;
}
rc = DosCloseMutexSem(mutex->hMutex);
if (!rc) {
mutex->hMutex = 0;
}
return APR_FROM_OS_ERROR(rc);
}
APR_PERMS_SET_ENOTIMPL(proc_mutex)
APR_POOL_IMPLEMENT_ACCESSOR(proc_mutex)
/* Implement OS-specific accessors defined in apr_portable.h */
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get_ex(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex,
apr_lockmech_e *mech)
{
*ospmutex = pmutex->hMutex;
if (mech) {
*mech = APR_LOCK_DEFAULT;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex)
{
return apr_os_proc_mutex_get_ex(ospmutex, pmutex, NULL);
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put_ex(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_lockmech_e mech,
int register_cleanup,
apr_pool_t *pool)
{
apr_proc_mutex_t *new;
if (pool == NULL) {
return APR_ENOPOOL;
}
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
new = (apr_proc_mutex_t *)apr_palloc(pool, sizeof(apr_proc_mutex_t));
new->pool = pool;
new->owner = 0;
new->lock_count = 0;
new->hMutex = *ospmutex;
*pmutex = new;
if (register_cleanup) {
apr_pool_cleanup_register(pool, *pmutex, apr_proc_mutex_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_pool_t *pool)
{
return apr_os_proc_mutex_put_ex(pmutex, ospmutex, APR_LOCK_DEFAULT,
0, pool);
}
+60
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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.
*/
#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_thread_cond.h"
#include "apr_arch_file_io.h"
#include <string.h>
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout){
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
return APR_ENOTIMPL;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
+102
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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.
*/
#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 <string.h>
#include <stddef.h>
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 APR_OS2_STATUS(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)
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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.
*/
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include "apr_portable.h"
#include "apr_arch_thread_rwlock.h"
#include "apr_arch_file_io.h"
#include <string.h>
static apr_status_t thread_rwlock_cleanup(void *therwlock)
{
apr_thread_rwlock_t *rwlock = therwlock;
return apr_thread_rwlock_destroy(rwlock);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
apr_thread_rwlock_t *new_rwlock;
ULONG rc;
new_rwlock = (apr_thread_rwlock_t *)apr_palloc(pool, sizeof(apr_thread_rwlock_t));
new_rwlock->pool = pool;
new_rwlock->readers = 0;
rc = DosCreateMutexSem(NULL, &(new_rwlock->write_lock), 0, FALSE);
if (rc)
return APR_FROM_OS_ERROR(rc);
rc = DosCreateEventSem(NULL, &(new_rwlock->read_done), 0, FALSE);
if (rc)
return APR_FROM_OS_ERROR(rc);
*rwlock = new_rwlock;
if (!rc)
apr_pool_cleanup_register(pool, new_rwlock, thread_rwlock_cleanup,
apr_pool_cleanup_null);
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
ULONG rc, posts;
rc = DosRequestMutexSem(rwlock->write_lock, SEM_INDEFINITE_WAIT);
if (rc)
return APR_FROM_OS_ERROR(rc);
/* We've successfully acquired the writer mutex so we can't be locked
* for write which means it's ok to add a reader lock. The writer mutex
* doubles as race condition protection for the readers counter.
*/
rwlock->readers++;
DosResetEventSem(rwlock->read_done, &posts);
rc = DosReleaseMutexSem(rwlock->write_lock);
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
/* As above but with different wait time */
ULONG rc, posts;
rc = DosRequestMutexSem(rwlock->write_lock, SEM_IMMEDIATE_RETURN);
if (rc)
return APR_FROM_OS_ERROR(rc);
rwlock->readers++;
DosResetEventSem(rwlock->read_done, &posts);
rc = DosReleaseMutexSem(rwlock->write_lock);
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
ULONG rc;
rc = DosRequestMutexSem(rwlock->write_lock, SEM_INDEFINITE_WAIT);
if (rc)
return APR_FROM_OS_ERROR(rc);
/* We've got the writer lock but we have to wait for all readers to
* unlock before it's ok to use it
*/
if (rwlock->readers) {
rc = DosWaitEventSem(rwlock->read_done, SEM_INDEFINITE_WAIT);
if (rc)
DosReleaseMutexSem(rwlock->write_lock);
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
ULONG rc;
rc = DosRequestMutexSem(rwlock->write_lock, SEM_IMMEDIATE_RETURN);
if (rc)
return APR_FROM_OS_ERROR(rc);
/* We've got the writer lock but we have to wait for all readers to
* unlock before it's ok to use it
*/
if (rwlock->readers) {
/* There are readers active, give up */
DosReleaseMutexSem(rwlock->write_lock);
rc = ERROR_TIMEOUT;
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
ULONG rc;
/* First, guess that we're unlocking a writer */
rc = DosReleaseMutexSem(rwlock->write_lock);
if (rc == ERROR_NOT_OWNER) {
/* Nope, we must have a read lock */
if (rwlock->readers) {
DosEnterCritSec();
rwlock->readers--;
if (rwlock->readers == 0) {
DosPostEventSem(rwlock->read_done);
}
DosExitCritSec();
rc = 0;
}
}
return APR_FROM_OS_ERROR(rc);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
ULONG rc;
if (rwlock->write_lock == 0)
return APR_SUCCESS;
while (DosReleaseMutexSem(rwlock->write_lock) == 0);
rc = DosCloseMutexSem(rwlock->write_lock);
if (!rc) {
rwlock->write_lock = 0;
DosCloseEventSem(rwlock->read_done);
return APR_SUCCESS;
}
return APR_FROM_OS_ERROR(rc);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock)
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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.
*/
#include "apr.h"
#include "apr_strings.h"
#include "apr_arch_global_mutex.h"
#include "apr_proc_mutex.h"
#include "apr_thread_mutex.h"
#include "apr_portable.h"
static apr_status_t global_mutex_cleanup(void *data)
{
apr_global_mutex_t *m = (apr_global_mutex_t *)data;
apr_status_t rv;
rv = apr_proc_mutex_destroy(m->proc_mutex);
#if APR_HAS_THREADS
if (m->thread_mutex) {
if (rv != APR_SUCCESS) {
(void)apr_thread_mutex_destroy(m->thread_mutex);
}
else {
rv = apr_thread_mutex_destroy(m->thread_mutex);
}
}
#endif /* APR_HAS_THREADS */
return rv;
}
APR_DECLARE(apr_status_t) apr_global_mutex_create(apr_global_mutex_t **mutex,
const char *fname,
apr_lockmech_e mech,
apr_pool_t *pool)
{
apr_status_t rv;
apr_global_mutex_t *m;
m = (apr_global_mutex_t *)apr_palloc(pool, sizeof(*m));
m->pool = pool;
rv = apr_proc_mutex_create(&m->proc_mutex, fname, mech, m->pool);
if (rv != APR_SUCCESS) {
return rv;
}
#if APR_HAS_THREADS
if (m->proc_mutex->meth->flags & APR_PROCESS_LOCK_MECH_IS_GLOBAL) {
m->thread_mutex = NULL; /* We don't need a thread lock. */
}
else {
rv = apr_thread_mutex_create(&m->thread_mutex,
APR_THREAD_MUTEX_DEFAULT, m->pool);
if (rv != APR_SUCCESS) {
rv = apr_proc_mutex_destroy(m->proc_mutex);
return rv;
}
}
#endif /* APR_HAS_THREADS */
apr_pool_cleanup_register(m->pool, (void *)m,
global_mutex_cleanup, apr_pool_cleanup_null);
*mutex = m;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_global_mutex_child_init(
apr_global_mutex_t **mutex,
const char *fname,
apr_pool_t *pool)
{
apr_status_t rv;
rv = apr_proc_mutex_child_init(&((*mutex)->proc_mutex), fname, pool);
return rv;
}
APR_DECLARE(apr_status_t) apr_global_mutex_lock(apr_global_mutex_t *mutex)
{
apr_status_t rv;
#if APR_HAS_THREADS
if (mutex->thread_mutex) {
rv = apr_thread_mutex_lock(mutex->thread_mutex);
if (rv != APR_SUCCESS) {
return rv;
}
}
#endif /* APR_HAS_THREADS */
rv = apr_proc_mutex_lock(mutex->proc_mutex);
#if APR_HAS_THREADS
if (rv != APR_SUCCESS) {
if (mutex->thread_mutex) {
(void)apr_thread_mutex_unlock(mutex->thread_mutex);
}
}
#endif /* APR_HAS_THREADS */
return rv;
}
APR_DECLARE(apr_status_t) apr_global_mutex_trylock(apr_global_mutex_t *mutex)
{
apr_status_t rv;
#if APR_HAS_THREADS
if (mutex->thread_mutex) {
rv = apr_thread_mutex_trylock(mutex->thread_mutex);
if (rv != APR_SUCCESS) {
return rv;
}
}
#endif /* APR_HAS_THREADS */
rv = apr_proc_mutex_trylock(mutex->proc_mutex);
#if APR_HAS_THREADS
if (rv != APR_SUCCESS) {
if (mutex->thread_mutex) {
(void)apr_thread_mutex_unlock(mutex->thread_mutex);
}
}
#endif /* APR_HAS_THREADS */
return rv;
}
APR_DECLARE(apr_status_t) apr_global_mutex_unlock(apr_global_mutex_t *mutex)
{
apr_status_t rv;
rv = apr_proc_mutex_unlock(mutex->proc_mutex);
#if APR_HAS_THREADS
if (mutex->thread_mutex) {
if (rv != APR_SUCCESS) {
(void)apr_thread_mutex_unlock(mutex->thread_mutex);
}
else {
rv = apr_thread_mutex_unlock(mutex->thread_mutex);
}
}
#endif /* APR_HAS_THREADS */
return rv;
}
APR_DECLARE(apr_status_t) apr_os_global_mutex_get(apr_os_global_mutex_t *ospmutex,
apr_global_mutex_t *pmutex)
{
ospmutex->pool = pmutex->pool;
ospmutex->proc_mutex = pmutex->proc_mutex;
#if APR_HAS_THREADS
ospmutex->thread_mutex = pmutex->thread_mutex;
#endif
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_global_mutex_destroy(apr_global_mutex_t *mutex)
{
return apr_pool_cleanup_run(mutex->pool, mutex, global_mutex_cleanup);
}
APR_DECLARE(const char *) apr_global_mutex_lockfile(apr_global_mutex_t *mutex)
{
return apr_proc_mutex_lockfile(mutex->proc_mutex);
}
APR_DECLARE(apr_lockmech_e) apr_global_mutex_mech(apr_global_mutex_t *mutex)
{
return apr_proc_mutex_mech(mutex->proc_mutex);
}
APR_DECLARE(const char *) apr_global_mutex_name(apr_global_mutex_t *mutex)
{
return apr_proc_mutex_name(mutex->proc_mutex);
}
APR_PERMS_SET_IMPLEMENT(global_mutex)
{
apr_status_t rv;
apr_global_mutex_t *mutex = (apr_global_mutex_t *)theglobal_mutex;
rv = APR_PERMS_SET_FN(proc_mutex)(mutex->proc_mutex, perms, uid, gid);
return rv;
}
APR_POOL_IMPLEMENT_ACCESSOR(global_mutex)
File diff suppressed because it is too large Load Diff
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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.
*/
#include "apr.h"
#if APR_HAS_THREADS
#include "apr_arch_thread_mutex.h"
#include "apr_arch_thread_cond.h"
static apr_status_t thread_cond_cleanup(void *data)
{
apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
apr_status_t rv;
rv = pthread_cond_destroy(&cond->cond);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
apr_thread_cond_t *new_cond;
apr_status_t rv;
new_cond = apr_palloc(pool, sizeof(apr_thread_cond_t));
new_cond->pool = pool;
if ((rv = pthread_cond_init(&new_cond->cond, NULL))) {
#ifdef HAVE_ZOS_PTHREADS
rv = errno;
#endif
return rv;
}
apr_pool_cleanup_register(new_cond->pool,
(void *)new_cond, thread_cond_cleanup,
apr_pool_cleanup_null);
*cond = new_cond;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
apr_status_t rv;
rv = pthread_cond_wait(&cond->cond, &mutex->mutex);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout)
{
apr_status_t rv;
apr_time_t then;
struct timespec abstime;
then = apr_time_now() + timeout;
abstime.tv_sec = apr_time_sec(then);
abstime.tv_nsec = apr_time_usec(then) * 1000; /* nanoseconds */
rv = pthread_cond_timedwait(&cond->cond, &mutex->mutex, &abstime);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
if (ETIMEDOUT == rv) {
return APR_TIMEUP;
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
apr_status_t rv;
rv = pthread_cond_signal(&cond->cond);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
apr_status_t rv;
rv = pthread_cond_broadcast(&cond->cond);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
return apr_pool_cleanup_run(cond->pool, cond, thread_cond_cleanup);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
#endif /* APR_HAS_THREADS */
+138
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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.
*/
#include "apr_arch_thread_mutex.h"
#define APR_WANT_MEMFUNC
#include "apr_want.h"
#if APR_HAS_THREADS
static apr_status_t thread_mutex_cleanup(void *data)
{
apr_thread_mutex_t *mutex = data;
apr_status_t rv;
rv = pthread_mutex_destroy(&mutex->mutex);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
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;
apr_status_t rv;
#ifndef HAVE_PTHREAD_MUTEX_RECURSIVE
if (flags & APR_THREAD_MUTEX_NESTED) {
return APR_ENOTIMPL;
}
#endif
new_mutex = apr_pcalloc(pool, sizeof(apr_thread_mutex_t));
new_mutex->pool = pool;
#ifdef HAVE_PTHREAD_MUTEX_RECURSIVE
if (flags & APR_THREAD_MUTEX_NESTED) {
pthread_mutexattr_t mattr;
rv = pthread_mutexattr_init(&mattr);
if (rv) return rv;
rv = pthread_mutexattr_settype(&mattr, PTHREAD_MUTEX_RECURSIVE);
if (rv) {
pthread_mutexattr_destroy(&mattr);
return rv;
}
rv = pthread_mutex_init(&new_mutex->mutex, &mattr);
pthread_mutexattr_destroy(&mattr);
} else
#endif
rv = pthread_mutex_init(&new_mutex->mutex, NULL);
if (rv) {
#ifdef HAVE_ZOS_PTHREADS
rv = errno;
#endif
return rv;
}
apr_pool_cleanup_register(new_mutex->pool,
new_mutex, thread_mutex_cleanup,
apr_pool_cleanup_null);
*mutex = new_mutex;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
{
apr_status_t rv;
rv = pthread_mutex_lock(&mutex->mutex);
#ifdef HAVE_ZOS_PTHREADS
if (rv) {
rv = errno;
}
#endif
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
{
apr_status_t rv;
rv = pthread_mutex_trylock(&mutex->mutex);
if (rv) {
#ifdef HAVE_ZOS_PTHREADS
rv = errno;
#endif
return (rv == EBUSY) ? APR_EBUSY : rv;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
{
apr_status_t status;
status = pthread_mutex_unlock(&mutex->mutex);
#ifdef HAVE_ZOS_PTHREADS
if (status) {
status = errno;
}
#endif
return status;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
{
return apr_pool_cleanup_run(mutex->pool, mutex, thread_mutex_cleanup);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
#endif /* APR_HAS_THREADS */
+181
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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.
*/
#include "apr_arch_thread_rwlock.h"
#include "apr_private.h"
#if APR_HAS_THREADS
#ifdef HAVE_PTHREAD_RWLOCKS
/* The rwlock must be initialized but not locked by any thread when
* cleanup is called. */
static apr_status_t thread_rwlock_cleanup(void *data)
{
apr_thread_rwlock_t *rwlock = (apr_thread_rwlock_t *)data;
apr_status_t stat;
stat = pthread_rwlock_destroy(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
apr_thread_rwlock_t *new_rwlock;
apr_status_t stat;
new_rwlock = apr_palloc(pool, sizeof(apr_thread_rwlock_t));
new_rwlock->pool = pool;
if ((stat = pthread_rwlock_init(&new_rwlock->rwlock, NULL))) {
#ifdef HAVE_ZOS_PTHREADS
stat = errno;
#endif
return stat;
}
apr_pool_cleanup_register(new_rwlock->pool,
(void *)new_rwlock, thread_rwlock_cleanup,
apr_pool_cleanup_null);
*rwlock = new_rwlock;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
stat = pthread_rwlock_rdlock(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
stat = pthread_rwlock_tryrdlock(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
/* Normalize the return code. */
if (stat == EBUSY)
stat = APR_EBUSY;
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
stat = pthread_rwlock_wrlock(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
stat = pthread_rwlock_trywrlock(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
/* Normalize the return code. */
if (stat == EBUSY)
stat = APR_EBUSY;
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t stat;
stat = pthread_rwlock_unlock(&rwlock->rwlock);
#ifdef HAVE_ZOS_PTHREADS
if (stat) {
stat = errno;
}
#endif
return stat;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
return apr_pool_cleanup_run(rwlock->pool, rwlock, thread_rwlock_cleanup);
}
#else /* HAVE_PTHREAD_RWLOCKS */
APR_DECLARE(apr_status_t) apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
return APR_ENOTIMPL;
}
#endif /* HAVE_PTHREAD_RWLOCKS */
APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock)
#endif /* APR_HAS_THREADS */
+268
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_portable.h"
#include "apr_arch_file_io.h"
#include "apr_arch_proc_mutex.h"
#include "apr_arch_misc.h"
static apr_status_t proc_mutex_cleanup(void *mutex_)
{
apr_proc_mutex_t *mutex = mutex_;
if (mutex->handle) {
if (CloseHandle(mutex->handle) == 0) {
return apr_get_os_error();
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_create(apr_proc_mutex_t **mutex,
const char *fname,
apr_lockmech_e mech,
apr_pool_t *pool)
{
HANDLE hMutex;
void *mutexkey;
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
/* res_name_from_filename turns fname into a pseduo-name
* without slashes or backslashes, and prepends the \global
* prefix on Win2K and later
*/
if (fname) {
mutexkey = res_name_from_filename(fname, 1, pool);
}
else {
mutexkey = NULL;
}
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
{
hMutex = CreateMutexW(NULL, FALSE, mutexkey);
}
#endif
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI
{
hMutex = CreateMutexA(NULL, FALSE, mutexkey);
}
#endif
if (!hMutex) {
return apr_get_os_error();
}
*mutex = (apr_proc_mutex_t *)apr_palloc(pool, sizeof(apr_proc_mutex_t));
(*mutex)->pool = pool;
(*mutex)->handle = hMutex;
(*mutex)->fname = fname;
apr_pool_cleanup_register((*mutex)->pool, *mutex,
proc_mutex_cleanup, apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_child_init(apr_proc_mutex_t **mutex,
const char *fname,
apr_pool_t *pool)
{
HANDLE hMutex;
void *mutexkey;
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
*/
mutexkey = res_name_from_filename(fname, 1, pool);
#if defined(_WIN32_WCE)
hMutex = CreateMutex(NULL, FALSE, mutexkey);
if (hMutex && ERROR_ALREADY_EXISTS != GetLastError()) {
CloseHandle(hMutex);
hMutex = NULL;
SetLastError(ERROR_FILE_NOT_FOUND);
}
#else
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
{
hMutex = OpenMutexW(MUTEX_ALL_ACCESS, FALSE, mutexkey);
}
#endif
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI
{
hMutex = OpenMutexA(MUTEX_ALL_ACCESS, FALSE, mutexkey);
}
#endif
#endif
if (!hMutex) {
return apr_get_os_error();
}
*mutex = (apr_proc_mutex_t *)apr_palloc(pool, sizeof(apr_proc_mutex_t));
(*mutex)->pool = pool;
(*mutex)->handle = hMutex;
(*mutex)->fname = fname;
apr_pool_cleanup_register((*mutex)->pool, *mutex,
proc_mutex_cleanup, apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_lock(apr_proc_mutex_t *mutex)
{
DWORD rv;
rv = WaitForSingleObject(mutex->handle, INFINITE);
if (rv == WAIT_OBJECT_0 || rv == WAIT_ABANDONED) {
return APR_SUCCESS;
}
return apr_get_os_error();
}
APR_DECLARE(apr_status_t) apr_proc_mutex_trylock(apr_proc_mutex_t *mutex)
{
DWORD rv;
rv = WaitForSingleObject(mutex->handle, 0);
if (rv == WAIT_OBJECT_0 || rv == WAIT_ABANDONED) {
return APR_SUCCESS;
}
else if (rv == WAIT_TIMEOUT) {
return APR_EBUSY;
}
return apr_get_os_error();
}
APR_DECLARE(apr_status_t) apr_proc_mutex_unlock(apr_proc_mutex_t *mutex)
{
if (ReleaseMutex(mutex->handle) == 0) {
return apr_get_os_error();
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_destroy(apr_proc_mutex_t *mutex)
{
apr_status_t stat;
stat = proc_mutex_cleanup(mutex);
if (stat == APR_SUCCESS) {
apr_pool_cleanup_kill(mutex->pool, mutex, proc_mutex_cleanup);
}
return stat;
}
APR_DECLARE(apr_status_t) apr_proc_mutex_cleanup(void *mutex)
{
return apr_proc_mutex_destroy((apr_proc_mutex_t *)mutex);
}
APR_DECLARE(const char *) apr_proc_mutex_lockfile(apr_proc_mutex_t *mutex)
{
return mutex->fname;
}
APR_DECLARE(apr_lockmech_e) apr_proc_mutex_mech(apr_proc_mutex_t *mutex)
{
return APR_LOCK_DEFAULT;
}
APR_DECLARE(const char *) apr_proc_mutex_name(apr_proc_mutex_t *mutex)
{
return apr_proc_mutex_defname();
}
APR_DECLARE(const char *) apr_proc_mutex_defname(void)
{
return "win32mutex";
}
APR_PERMS_SET_ENOTIMPL(proc_mutex)
APR_POOL_IMPLEMENT_ACCESSOR(proc_mutex)
/* Implement OS-specific accessors defined in apr_portable.h */
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get_ex(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex,
apr_lockmech_e *mech)
{
*ospmutex = pmutex->handle;
if (mech) {
*mech = APR_LOCK_DEFAULT;
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_get(apr_os_proc_mutex_t *ospmutex,
apr_proc_mutex_t *pmutex)
{
return apr_os_proc_mutex_get_ex(ospmutex, pmutex, NULL);
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put_ex(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_lockmech_e mech,
int register_cleanup,
apr_pool_t *pool)
{
if (pool == NULL) {
return APR_ENOPOOL;
}
if (mech != APR_LOCK_DEFAULT) {
return APR_ENOTIMPL;
}
if ((*pmutex) == NULL) {
(*pmutex) = (apr_proc_mutex_t *)apr_palloc(pool,
sizeof(apr_proc_mutex_t));
(*pmutex)->pool = pool;
}
(*pmutex)->handle = *ospmutex;
if (register_cleanup) {
apr_pool_cleanup_register(pool, *pmutex, proc_mutex_cleanup,
apr_pool_cleanup_null);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_proc_mutex_put(apr_proc_mutex_t **pmutex,
apr_os_proc_mutex_t *ospmutex,
apr_pool_t *pool)
{
return apr_os_proc_mutex_put_ex(pmutex, ospmutex, APR_LOCK_DEFAULT,
0, pool);
}
+168
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_mutex.h"
#include "apr_arch_thread_cond.h"
#include "apr_portable.h"
#include <limits.h>
static apr_status_t thread_cond_cleanup(void *data)
{
apr_thread_cond_t *cond = data;
CloseHandle(cond->semaphore);
DeleteCriticalSection(&cond->csection);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
apr_pool_t *pool)
{
apr_thread_cond_t *cv;
cv = apr_pcalloc(pool, sizeof(**cond));
if (cv == NULL) {
return APR_ENOMEM;
}
cv->semaphore = CreateSemaphore(NULL, 0, LONG_MAX, NULL);
if (cv->semaphore == NULL) {
return apr_get_os_error();
}
*cond = cv;
cv->pool = pool;
InitializeCriticalSection(&cv->csection);
apr_pool_cleanup_register(cv->pool, cv, thread_cond_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
{
return apr_pool_cleanup_run(cond->pool, cond, thread_cond_cleanup);
}
static APR_INLINE apr_status_t _thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
DWORD timeout_ms )
{
DWORD res;
apr_status_t rv;
unsigned int wake = 0;
unsigned long generation;
EnterCriticalSection(&cond->csection);
cond->num_waiting++;
generation = cond->generation;
LeaveCriticalSection(&cond->csection);
apr_thread_mutex_unlock(mutex);
do {
res = WaitForSingleObject(cond->semaphore, timeout_ms);
EnterCriticalSection(&cond->csection);
if (cond->num_wake) {
if (cond->generation != generation) {
cond->num_wake--;
cond->num_waiting--;
rv = APR_SUCCESS;
break;
} else {
wake = 1;
}
}
else if (res != WAIT_OBJECT_0) {
cond->num_waiting--;
rv = APR_TIMEUP;
break;
}
LeaveCriticalSection(&cond->csection);
if (wake) {
wake = 0;
ReleaseSemaphore(cond->semaphore, 1, NULL);
}
} while (1);
LeaveCriticalSection(&cond->csection);
apr_thread_mutex_lock(mutex);
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex)
{
return _thread_cond_timedwait(cond, mutex, INFINITE);
}
APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
apr_thread_mutex_t *mutex,
apr_interval_time_t timeout)
{
DWORD timeout_ms = (DWORD) apr_time_as_msec(timeout);
return _thread_cond_timedwait(cond, mutex, timeout_ms);
}
APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
{
unsigned int wake = 0;
EnterCriticalSection(&cond->csection);
if (cond->num_waiting > cond->num_wake) {
wake = 1;
cond->num_wake++;
cond->generation++;
}
LeaveCriticalSection(&cond->csection);
if (wake) {
ReleaseSemaphore(cond->semaphore, 1, NULL);
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
{
unsigned long num_wake = 0;
EnterCriticalSection(&cond->csection);
if (cond->num_waiting > cond->num_wake) {
num_wake = cond->num_waiting - cond->num_wake;
cond->num_wake = cond->num_waiting;
cond->generation++;
}
LeaveCriticalSection(&cond->csection);
if (num_wake) {
ReleaseSemaphore(cond->semaphore, num_wake, NULL);
}
return APR_SUCCESS;
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
+136
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_mutex.h"
#include "apr_thread_mutex.h"
#include "apr_portable.h"
#include "apr_arch_misc.h"
static apr_status_t thread_mutex_cleanup(void *data)
{
apr_thread_mutex_t *lock = data;
if (lock->type == thread_mutex_critical_section) {
lock->type = -1;
DeleteCriticalSection(&lock->section);
}
else {
if (!CloseHandle(lock->handle)) {
return apr_get_os_error();
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex,
unsigned int flags,
apr_pool_t *pool)
{
(*mutex) = (apr_thread_mutex_t *)apr_palloc(pool, sizeof(**mutex));
(*mutex)->pool = pool;
if (flags & APR_THREAD_MUTEX_UNNESTED) {
/* Use an auto-reset signaled event, ready to accept one
* waiting thread.
*/
(*mutex)->type = thread_mutex_unnested_event;
(*mutex)->handle = CreateEvent(NULL, FALSE, TRUE, NULL);
}
else {
#if APR_HAS_UNICODE_FS
/* Critical Sections are terrific, performance-wise, on NT.
* On Win9x, we cannot 'try' on a critical section, so we
* use a [slower] mutex object, instead.
*/
IF_WIN_OS_IS_UNICODE {
InitializeCriticalSection(&(*mutex)->section);
(*mutex)->type = thread_mutex_critical_section;
}
#endif
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI {
(*mutex)->type = thread_mutex_nested_mutex;
(*mutex)->handle = CreateMutex(NULL, FALSE, NULL);
}
#endif
}
apr_pool_cleanup_register((*mutex)->pool, (*mutex), thread_mutex_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
{
if (mutex->type == thread_mutex_critical_section) {
EnterCriticalSection(&mutex->section);
}
else {
DWORD rv = WaitForSingleObject(mutex->handle, INFINITE);
if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) {
return (rv == WAIT_TIMEOUT) ? APR_EBUSY : apr_get_os_error();
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
{
if (mutex->type == thread_mutex_critical_section) {
if (!TryEnterCriticalSection(&mutex->section)) {
return APR_EBUSY;
}
}
else {
DWORD rv = WaitForSingleObject(mutex->handle, 0);
if ((rv != WAIT_OBJECT_0) && (rv != WAIT_ABANDONED)) {
return (rv == WAIT_TIMEOUT) ? APR_EBUSY : apr_get_os_error();
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
{
if (mutex->type == thread_mutex_critical_section) {
LeaveCriticalSection(&mutex->section);
}
else if (mutex->type == thread_mutex_unnested_event) {
if (!SetEvent(mutex->handle)) {
return apr_get_os_error();
}
}
else if (mutex->type == thread_mutex_nested_mutex) {
if (!ReleaseMutex(mutex->handle)) {
return apr_get_os_error();
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
{
return apr_pool_cleanup_run(mutex->pool, mutex, thread_mutex_cleanup);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
+165
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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.
*/
#include "apr.h"
#include "apr_private.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_arch_thread_rwlock.h"
#include "apr_portable.h"
static apr_status_t thread_rwlock_cleanup(void *data)
{
apr_thread_rwlock_t *rwlock = data;
if (! CloseHandle(rwlock->read_event))
return apr_get_os_error();
if (! CloseHandle(rwlock->write_mutex))
return apr_get_os_error();
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t)apr_thread_rwlock_create(apr_thread_rwlock_t **rwlock,
apr_pool_t *pool)
{
*rwlock = apr_palloc(pool, sizeof(**rwlock));
(*rwlock)->pool = pool;
(*rwlock)->readers = 0;
if (! ((*rwlock)->read_event = CreateEvent(NULL, TRUE, FALSE, NULL))) {
*rwlock = NULL;
return apr_get_os_error();
}
if (! ((*rwlock)->write_mutex = CreateMutex(NULL, FALSE, NULL))) {
CloseHandle((*rwlock)->read_event);
*rwlock = NULL;
return apr_get_os_error();
}
apr_pool_cleanup_register(pool, *rwlock, thread_rwlock_cleanup,
apr_pool_cleanup_null);
return APR_SUCCESS;
}
static apr_status_t apr_thread_rwlock_rdlock_core(apr_thread_rwlock_t *rwlock,
DWORD milliseconds)
{
DWORD code = WaitForSingleObject(rwlock->write_mutex, milliseconds);
if (code == WAIT_FAILED || code == WAIT_TIMEOUT)
return APR_FROM_OS_ERROR(code);
/* We've successfully acquired the writer mutex, we can't be locked
* for write, so it's OK to add the reader lock. The writer mutex
* doubles as race condition protection for the readers counter.
*/
InterlockedIncrement(&rwlock->readers);
if (! ResetEvent(rwlock->read_event))
return apr_get_os_error();
if (! ReleaseMutex(rwlock->write_mutex))
return apr_get_os_error();
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_rdlock(apr_thread_rwlock_t *rwlock)
{
return apr_thread_rwlock_rdlock_core(rwlock, INFINITE);
}
APR_DECLARE(apr_status_t)
apr_thread_rwlock_tryrdlock(apr_thread_rwlock_t *rwlock)
{
return apr_thread_rwlock_rdlock_core(rwlock, 0);
}
static apr_status_t
apr_thread_rwlock_wrlock_core(apr_thread_rwlock_t *rwlock, DWORD milliseconds)
{
DWORD code = WaitForSingleObject(rwlock->write_mutex, milliseconds);
if (code == WAIT_FAILED || code == WAIT_TIMEOUT)
return APR_FROM_OS_ERROR(code);
/* We've got the writer lock but we have to wait for all readers to
* unlock before it's ok to use it.
*/
if (rwlock->readers) {
/* Must wait for readers to finish before returning, unless this
* is an trywrlock (milliseconds == 0):
*/
code = milliseconds
? WaitForSingleObject(rwlock->read_event, milliseconds)
: WAIT_TIMEOUT;
if (code == WAIT_FAILED || code == WAIT_TIMEOUT) {
/* Unable to wait for readers to finish, release write lock: */
if (! ReleaseMutex(rwlock->write_mutex))
return apr_get_os_error();
return APR_FROM_OS_ERROR(code);
}
}
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_wrlock(apr_thread_rwlock_t *rwlock)
{
return apr_thread_rwlock_wrlock_core(rwlock, INFINITE);
}
APR_DECLARE(apr_status_t)apr_thread_rwlock_trywrlock(apr_thread_rwlock_t *rwlock)
{
return apr_thread_rwlock_wrlock_core(rwlock, 0);
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_unlock(apr_thread_rwlock_t *rwlock)
{
apr_status_t rv = 0;
/* First, guess that we're unlocking a writer */
if (! ReleaseMutex(rwlock->write_mutex))
rv = apr_get_os_error();
if (rv == APR_FROM_OS_ERROR(ERROR_NOT_OWNER)) {
/* Nope, we must have a read lock */
if (rwlock->readers &&
! InterlockedDecrement(&rwlock->readers) &&
! SetEvent(rwlock->read_event)) {
rv = apr_get_os_error();
}
else {
rv = 0;
}
}
return rv;
}
APR_DECLARE(apr_status_t) apr_thread_rwlock_destroy(apr_thread_rwlock_t *rwlock)
{
return apr_pool_cleanup_run(rwlock->pool, rwlock, thread_rwlock_cleanup);
}
APR_POOL_IMPLEMENT_ACCESSOR(thread_rwlock)