/src/httpd/srclib/apr/threadproc/unix/thread.c

Source (jump to first uncovered line)
/* 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

/* Unfortunately the kernel headers do not export the TASK_COMM_LEN
   macro.  So we have to define it here. Used in apr_thread_name_get and
   apr_thread_name_set functions */
#define TASK_COMM_LEN 16

/* 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
}

APR_DECLARE(apr_status_t) apr_threadattr_max_free_set(apr_threadattr_t *attr,
                                                      apr_size_t size)
{
    attr->max_free = size;
    return APR_SUCCESS;
}

#if APR_HAS_THREAD_LOCAL
static APR_THREAD_LOCAL apr_thread_t *current_thread = NULL;
#endif

static void *dummy_worker(void *opaque)
{
    apr_thread_t *thread = (apr_thread_t*)opaque;
    void *ret;

#if APR_HAS_THREAD_LOCAL
    current_thread = thread;
#endif

    apr_pool_owner_set(thread->pool, 0);
    ret = thread->func(thread, thread->data);
    if (thread->detached) {
        apr_pool_destroy(thread->pool);
    }

    return ret;
}

static apr_status_t alloc_thread(apr_thread_t **new,
                                 apr_threadattr_t *attr,
                                 apr_thread_start_t func, void *data,
                                 apr_pool_t *pool)
{
    apr_status_t stat;
    apr_abortfunc_t abort_fn = apr_pool_abort_get(pool);
    apr_pool_t *p;

    /* The thread can be detached anytime (from the creation or later with
     * apr_thread_detach), so it needs its own pool and allocator to not
     * depend on a parent pool which could be destroyed before the thread
     * exits. The allocator needs no mutex obviously since the pool should
     * not be used nor create children pools outside the thread. Passing
     * NULL allocator will create one like that.
     */
    stat = apr_pool_create_unmanaged_ex(&p, abort_fn, NULL);
    if (stat != APR_SUCCESS) {
        return stat;
    }
    if (attr && attr->max_free) {
        apr_allocator_max_free_set(apr_pool_allocator_get(p), attr->max_free);
    }

    (*new) = (apr_thread_t *)apr_pcalloc(p, sizeof(apr_thread_t));
    if ((*new) == NULL) {
        apr_pool_destroy(p);
        return APR_ENOMEM;
    }

    (*new)->pool = p;
    (*new)->data = data;
    (*new)->func = func;
    (*new)->detached = (attr && apr_threadattr_detach_get(attr) == APR_DETACH);
    (*new)->td = (pthread_t *)apr_pcalloc(p, sizeof(pthread_t));
    if ((*new)->td == NULL) {
        apr_pool_destroy(p);
        return APR_ENOMEM;
    }

    return APR_SUCCESS;
}

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;

    stat = alloc_thread(new, attr, func, data, pool);
    if (stat != APR_SUCCESS) {
        return stat;
    }

    if (attr)
        temp = &attr->attr;
    else
        temp = NULL;

    if ((stat = pthread_create((*new)->td, temp, dummy_worker, (*new)))) {
#ifdef HAVE_ZOS_PTHREADS
        stat = errno;
#endif
        apr_pool_destroy((*new)->pool);
        return stat;
    }

    return APR_SUCCESS;
}

APR_DECLARE(apr_status_t) apr_thread_current_create(apr_thread_t **current,
                                                    apr_threadattr_t *attr,
                                                    apr_pool_t *pool)
{
#if APR_HAS_THREAD_LOCAL
    apr_status_t stat;

    *current = apr_thread_current();
    if (*current) {
        return APR_EEXIST;
    }

    stat = alloc_thread(current, attr, NULL, NULL, pool);
    if (stat != APR_SUCCESS) {
        *current = NULL;
        return stat;
    }

    *(*current)->td = apr_os_thread_current();

    current_thread = *current;
    return APR_SUCCESS;
#else
    return APR_ENOTIMPL;
#endif
}

APR_DECLARE(void) apr_thread_current_after_fork(void)
{
#if APR_HAS_THREAD_LOCAL
    current_thread = NULL;
#endif
}

APR_DECLARE(apr_thread_t *) apr_thread_current(void)
{
#if APR_HAS_THREAD_LOCAL
    return current_thread;
#else
    return NULL;
#endif
}

APR_DECLARE(apr_status_t) apr_thread_name_set(const char *name,
                                              apr_thread_t *thread,
                                              apr_pool_t *pool)
{
#if HAVE_PTHREAD_SETNAME_NP
    pthread_t td;

    size_t name_len;
    if (!name) {
        return APR_BADARG;
    }

    if (thread) {
        td = *thread->td;
    }
    else {
        td = pthread_self();
    }

    name_len = strlen(name);
    if (name_len >= TASK_COMM_LEN) {
        name = name + name_len - TASK_COMM_LEN + 1;
    }

    return pthread_setname_np(td, name);
#else
    return APR_ENOTIMPL;
#endif
}

APR_DECLARE(apr_status_t) apr_thread_name_get(char **name,
                                              apr_thread_t *thread,
                                              apr_pool_t *pool)
{
#if HAVE_PTHREAD_SETNAME_NP
    pthread_t td;
    if (thread) {
        td = *thread->td;
    }
    else {
        td = pthread_self();
    }

    *name = apr_pcalloc(pool, TASK_COMM_LEN);
    return pthread_getname_np(td, *name, TASK_COMM_LEN);
#else
    return APR_ENOTIMPL;
#endif
}

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(void) apr_thread_exit(apr_thread_t *thd,
                                  apr_status_t retval)
{
    thd->exitval = retval;
    if (thd->detached) {
        apr_pool_destroy(thd->pool);
    }
    pthread_exit(NULL);
}

APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval,
                                          apr_thread_t *thd)
{
    apr_status_t stat;
    void *thread_stat;

    if (thd->detached) {
        return APR_EINVAL;
    }

    if ((stat = pthread_join(*thd->td, &thread_stat))) {
#ifdef HAVE_ZOS_PTHREADS
        stat = errno;
#endif
        return stat;
    }

    *retval = thd->exitval;
    apr_pool_destroy(thd->pool);
    return APR_SUCCESS;
}

APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd)
{
    apr_status_t stat;

    if (thd->detached) {
        return APR_EINVAL;
    }

#ifdef HAVE_ZOS_PTHREADS
    if ((stat = pthread_detach(thd->td)) == 0) {
#else
    if ((stat = pthread_detach(*thd->td)) == 0) {
#endif
        thd->detached = 1;

        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)
{
    if (thread == NULL) {
        *data = NULL;
        return APR_ENOTHREAD;
    }
    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)
{
    if (thread == NULL) {
        return APR_ENOTHREAD;
    }
    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

Coverage Report

Created: 2023-03-26 06:28

Line	Count	Source (jump to first uncovered line)
1		/* Licensed to the Apache Software Foundation (ASF) under one or more
2		* contributor license agreements. See the NOTICE file distributed with
3		* this work for additional information regarding copyright ownership.
4		* The ASF licenses this file to You under the Apache License, Version 2.0
5		* (the "License"); you may not use this file except in compliance with
6		* the License. You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16
17		#include "apr.h"
18		#include "apr_portable.h"
19		#include "apr_arch_threadproc.h"
20
21		#if APR_HAS_THREADS
22
23		#if APR_HAVE_PTHREAD_H
24
25		/* Unfortunately the kernel headers do not export the TASK_COMM_LEN
26		macro. So we have to define it here. Used in apr_thread_name_get and
27		apr_thread_name_set functions */
28	0	#define TASK_COMM_LEN 16
29
30		/* Destroy the threadattr object */
31		static apr_status_t threadattr_cleanup(void *data)
32	0	{
33	0	apr_threadattr_t *attr = data;
34	0	apr_status_t rv;
35
36	0	rv = pthread_attr_destroy(&attr->attr);
37		#ifdef HAVE_ZOS_PTHREADS
38		if (rv) {
39		rv = errno;
40		}
41		#endif
42	0	return rv;
43	0	}
44
45		APR_DECLARE(apr_status_t) apr_threadattr_create(apr_threadattr_t **new,
46		apr_pool_t *pool)
47	0	{
48	0	apr_status_t stat;
49
50	0	(*new) = apr_palloc(pool, sizeof(apr_threadattr_t));
51	0	(*new)->pool = pool;
52	0	stat = pthread_attr_init(&(*new)->attr);
53
54	0	if (stat == 0) {
55	0	apr_pool_cleanup_register(pool, *new, threadattr_cleanup,
56	0	apr_pool_cleanup_null);
57	0	return APR_SUCCESS;
58	0	}
59		#ifdef HAVE_ZOS_PTHREADS
60		stat = errno;
61		#endif
62
63	0	return stat;
64	0	}
65
66		#if defined(PTHREAD_CREATE_DETACHED)
67	0	#define DETACH_ARG(v) ((v) ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE)
68		#else
69		#define DETACH_ARG(v) ((v) ? 1 : 0)
70		#endif
71
72		APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr,
73		apr_int32_t on)
74	0	{
75	0	apr_status_t stat;
76		#ifdef HAVE_ZOS_PTHREADS
77		int arg = DETACH_ARG(on);
78
79		if ((stat = pthread_attr_setdetachstate(&attr->attr, &arg)) == 0) {
80		#else
81	0	if ((stat = pthread_attr_setdetachstate(&attr->attr,
82	0	DETACH_ARG(on))) == 0) {
83	0	#endif
84	0	return APR_SUCCESS;
85	0	}
86	0	else {
87		#ifdef HAVE_ZOS_PTHREADS
88		stat = errno;
89		#endif
90
91	0	return stat;
92	0	}
93	0	}
94
95		APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr)
96	0	{
97	0	int state;
98
99		#ifdef PTHREAD_ATTR_GETDETACHSTATE_TAKES_ONE_ARG
100		state = pthread_attr_getdetachstate(&attr->attr);
101		#else
102	0	pthread_attr_getdetachstate(&attr->attr, &state);
103	0	#endif
104	0	if (state == DETACH_ARG(1))
105	0	return APR_DETACH;
106	0	return APR_NOTDETACH;
107	0	}
108
109		APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr,
110		apr_size_t stacksize)
111	0	{
112	0	int stat;
113
114	0	stat = pthread_attr_setstacksize(&attr->attr, stacksize);
115	0	if (stat == 0) {
116	0	return APR_SUCCESS;
117	0	}
118		#ifdef HAVE_ZOS_PTHREADS
119		stat = errno;
120		#endif
121
122	0	return stat;
123	0	}
124
125		APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr,
126		apr_size_t size)
127	0	{
128	0	#ifdef HAVE_PTHREAD_ATTR_SETGUARDSIZE
129	0	apr_status_t rv;
130
131	0	rv = pthread_attr_setguardsize(&attr->attr, size);
132	0	if (rv == 0) {
133	0	return APR_SUCCESS;
134	0	}
135		#ifdef HAVE_ZOS_PTHREADS
136		rv = errno;
137		#endif
138	0	return rv;
139		#else
140		return APR_ENOTIMPL;
141		#endif
142	0	}
143
144		APR_DECLARE(apr_status_t) apr_threadattr_max_free_set(apr_threadattr_t *attr,
145		apr_size_t size)
146	0	{
147	0	attr->max_free = size;
148	0	return APR_SUCCESS;
149	0	}
150
151		#if APR_HAS_THREAD_LOCAL
152		static APR_THREAD_LOCAL apr_thread_t *current_thread = NULL;
153		#endif
154
155		static void dummy_worker(void opaque)
156	0	{
157	0	apr_thread_t thread = (apr_thread_t)opaque;
158	0	void *ret;
159
160	0	#if APR_HAS_THREAD_LOCAL
161	0	current_thread = thread;
162	0	#endif
163
164	0	apr_pool_owner_set(thread->pool, 0);
165	0	ret = thread->func(thread, thread->data);
166	0	if (thread->detached) {
167	0	apr_pool_destroy(thread->pool);
168	0	}
169
170	0	return ret;
171	0	}
172
173		static apr_status_t alloc_thread(apr_thread_t **new,
174		apr_threadattr_t *attr,
175		apr_thread_start_t func, void *data,
176		apr_pool_t *pool)
177	0	{
178	0	apr_status_t stat;
179	0	apr_abortfunc_t abort_fn = apr_pool_abort_get(pool);
180	0	apr_pool_t *p;
181
182		/* The thread can be detached anytime (from the creation or later with
183		* apr_thread_detach), so it needs its own pool and allocator to not
184		* depend on a parent pool which could be destroyed before the thread
185		* exits. The allocator needs no mutex obviously since the pool should
186		* not be used nor create children pools outside the thread. Passing
187		* NULL allocator will create one like that.
188		*/
189	0	stat = apr_pool_create_unmanaged_ex(&p, abort_fn, NULL);
190	0	if (stat != APR_SUCCESS) {
191	0	return stat;
192	0	}
193	0	if (attr && attr->max_free) {
194	0	apr_allocator_max_free_set(apr_pool_allocator_get(p), attr->max_free);
195	0	}
196
197	0	(new) = (apr_thread_t )apr_pcalloc(p, sizeof(apr_thread_t));
198	0	if ((*new) == NULL) {
199	0	apr_pool_destroy(p);
200	0	return APR_ENOMEM;
201	0	}
202
203	0	(*new)->pool = p;
204	0	(*new)->data = data;
205	0	(*new)->func = func;
206	0	(*new)->detached = (attr && apr_threadattr_detach_get(attr) == APR_DETACH);
207	0	(new)->td = (pthread_t )apr_pcalloc(p, sizeof(pthread_t));
208	0	if ((*new)->td == NULL) {
209	0	apr_pool_destroy(p);
210	0	return APR_ENOMEM;
211	0	}
212
213	0	return APR_SUCCESS;
214	0	}
215
216		APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new,
217		apr_threadattr_t *attr,
218		apr_thread_start_t func,
219		void *data,
220		apr_pool_t *pool)
221	0	{
222	0	apr_status_t stat;
223	0	pthread_attr_t *temp;
224
225	0	stat = alloc_thread(new, attr, func, data, pool);
226	0	if (stat != APR_SUCCESS) {
227	0	return stat;
228	0	}
229
230	0	if (attr)
231	0	temp = &attr->attr;
232	0	else
233	0	temp = NULL;
234
235	0	if ((stat = pthread_create((new)->td, temp, dummy_worker, (new)))) {
236		#ifdef HAVE_ZOS_PTHREADS
237		stat = errno;
238		#endif
239	0	apr_pool_destroy((*new)->pool);
240	0	return stat;
241	0	}
242
243	0	return APR_SUCCESS;
244	0	}
245
246		APR_DECLARE(apr_status_t) apr_thread_current_create(apr_thread_t **current,
247		apr_threadattr_t *attr,
248		apr_pool_t *pool)
249	0	{
250	0	#if APR_HAS_THREAD_LOCAL
251	0	apr_status_t stat;
252
253	0	*current = apr_thread_current();
254	0	if (*current) {
255	0	return APR_EEXIST;
256	0	}
257
258	0	stat = alloc_thread(current, attr, NULL, NULL, pool);
259	0	if (stat != APR_SUCCESS) {
260	0	*current = NULL;
261	0	return stat;
262	0	}
263
264	0	(current)->td = apr_os_thread_current();
265
266	0	current_thread = *current;
267	0	return APR_SUCCESS;
268		#else
269		return APR_ENOTIMPL;
270		#endif
271	0	}
272
273		APR_DECLARE(void) apr_thread_current_after_fork(void)
274	0	{
275	0	#if APR_HAS_THREAD_LOCAL
276	0	current_thread = NULL;
277	0	#endif
278	0	}
279
280		APR_DECLARE(apr_thread_t *) apr_thread_current(void)
281	0	{
282	0	#if APR_HAS_THREAD_LOCAL
283	0	return current_thread;
284		#else
285		return NULL;
286		#endif
287	0	}
288
289		APR_DECLARE(apr_status_t) apr_thread_name_set(const char *name,
290		apr_thread_t *thread,
291		apr_pool_t *pool)
292	0	{
293	0	#if HAVE_PTHREAD_SETNAME_NP
294	0	pthread_t td;
295
296	0	size_t name_len;
297	0	if (!name) {
298	0	return APR_BADARG;
299	0	}
300
301	0	if (thread) {
302	0	td = *thread->td;
303	0	}
304	0	else {
305	0	td = pthread_self();
306	0	}
307
308	0	name_len = strlen(name);
309	0	if (name_len >= TASK_COMM_LEN) {
310	0	name = name + name_len - TASK_COMM_LEN + 1;
311	0	}
312
313	0	return pthread_setname_np(td, name);
314		#else
315		return APR_ENOTIMPL;
316		#endif
317	0	}
318
319		APR_DECLARE(apr_status_t) apr_thread_name_get(char **name,
320		apr_thread_t *thread,
321		apr_pool_t *pool)
322	0	{
323	0	#if HAVE_PTHREAD_SETNAME_NP
324	0	pthread_t td;
325	0	if (thread) {
326	0	td = *thread->td;
327	0	}
328	0	else {
329	0	td = pthread_self();
330	0	}
331
332	0	*name = apr_pcalloc(pool, TASK_COMM_LEN);
333	0	return pthread_getname_np(td, *name, TASK_COMM_LEN);
334		#else
335		return APR_ENOTIMPL;
336		#endif
337	0	}
338
339		APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void)
340	11.2k	{
341	11.2k	return pthread_self();
342	11.2k	}
343
344		APR_DECLARE(int) apr_os_thread_equal(apr_os_thread_t tid1,
345		apr_os_thread_t tid2)
346	0	{
347	0	return pthread_equal(tid1, tid2);
348	0	}
349
350		APR_DECLARE(void) apr_thread_exit(apr_thread_t *thd,
351		apr_status_t retval)
352	0	{
353	0	thd->exitval = retval;
354	0	if (thd->detached) {
355	0	apr_pool_destroy(thd->pool);
356	0	}
357	0	pthread_exit(NULL);
358	0	}
359
360		APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval,
361		apr_thread_t *thd)
362	0	{
363	0	apr_status_t stat;
364	0	void *thread_stat;
365
366	0	if (thd->detached) {
367	0	return APR_EINVAL;
368	0	}
369
370	0	if ((stat = pthread_join(*thd->td, &thread_stat))) {
371		#ifdef HAVE_ZOS_PTHREADS
372		stat = errno;
373		#endif
374	0	return stat;
375	0	}
376
377	0	*retval = thd->exitval;
378	0	apr_pool_destroy(thd->pool);
379	0	return APR_SUCCESS;
380	0	}
381
382		APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd)
383	0	{
384	0	apr_status_t stat;
385
386	0	if (thd->detached) {
387	0	return APR_EINVAL;
388	0	}
389
390		#ifdef HAVE_ZOS_PTHREADS
391		if ((stat = pthread_detach(thd->td)) == 0) {
392		#else
393	0	if ((stat = pthread_detach(*thd->td)) == 0) {
394	0	#endif
395	0	thd->detached = 1;
396
397	0	return APR_SUCCESS;
398	0	}
399	0	else {
400		#ifdef HAVE_ZOS_PTHREADS
401		stat = errno;
402		#endif
403
404	0	return stat;
405	0	}
406	0	}
407
408		APR_DECLARE(void) apr_thread_yield(void)
409	0	{
410	0	#ifdef HAVE_PTHREAD_YIELD
411		#ifdef HAVE_ZOS_PTHREADS
412		pthread_yield(NULL);
413		#else
414	0	pthread_yield();
415	0	#endif /* HAVE_ZOS_PTHREADS */
416		#else
417		#ifdef HAVE_SCHED_YIELD
418		sched_yield();
419		#endif
420		#endif
421	0	}
422
423		APR_DECLARE(apr_status_t) apr_thread_data_get(void *data, const char key,
424		apr_thread_t *thread)
425	0	{
426	0	if (thread == NULL) {
427	0	*data = NULL;
428	0	return APR_ENOTHREAD;
429	0	}
430	0	return apr_pool_userdata_get(data, key, thread->pool);
431	0	}
432
433		APR_DECLARE(apr_status_t) apr_thread_data_set(void data, const char key,
434		apr_status_t (cleanup)(void ),
435		apr_thread_t *thread)
436	0	{
437	0	if (thread == NULL) {
438	0	return APR_ENOTHREAD;
439	0	}
440	0	return apr_pool_userdata_set(data, key, cleanup, thread->pool);
441	0	}
442
443		APR_DECLARE(apr_status_t) apr_os_thread_get(apr_os_thread_t **thethd,
444		apr_thread_t *thd)
445	0	{
446	0	*thethd = thd->td;
447	0	return APR_SUCCESS;
448	0	}
449
450		APR_DECLARE(apr_status_t) apr_os_thread_put(apr_thread_t **thd,
451		apr_os_thread_t *thethd,
452		apr_pool_t *pool)
453	0	{
454	0	if (pool == NULL) {
455	0	return APR_ENOPOOL;
456	0	}
457
458	0	if ((*thd) == NULL) {
459	0	(thd) = (apr_thread_t )apr_pcalloc(pool, sizeof(apr_thread_t));
460	0	(*thd)->pool = pool;
461	0	}
462
463	0	(*thd)->td = thethd;
464	0	return APR_SUCCESS;
465	0	}
466
467		APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control,
468		apr_pool_t *p)
469	0	{
470	0	static const pthread_once_t once_init = PTHREAD_ONCE_INIT;
471
472	0	control = apr_palloc(p, sizeof(*control));
473	0	(*control)->once = once_init;
474	0	return APR_SUCCESS;
475	0	}
476
477		APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
478		void (*func)(void))
479	0	{
480	0	return pthread_once(&control->once, func);
481	0	}
482
483		APR_POOL_IMPLEMENT_ACCESSOR(thread)
484
485		#endif /* HAVE_PTHREAD_H */
486		#endif /* APR_HAS_THREADS */
487
488		#if !APR_HAS_THREADS
489
490		/* avoid warning for no prototype */
491		APR_DECLARE(apr_status_t) apr_os_thread_get(void);
492
493		APR_DECLARE(apr_status_t) apr_os_thread_get(void)
494		{
495		return APR_ENOTIMPL;
496		}
497
498		#endif