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Diffstat (limited to '')
| -rw-r--r-- | threadproc/os2/thread.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/threadproc/os2/thread.c b/threadproc/os2/thread.c new file mode 100644 index 0000000..00ec4eb --- /dev/null +++ b/threadproc/os2/thread.c @@ -0,0 +1,260 @@ +/* Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define INCL_DOSERRORS +#define INCL_DOS +#include "apr_arch_threadproc.h" +#include "apr_thread_proc.h" +#include "apr_general.h" +#include "apr_lib.h" +#include "apr_portable.h" +#include "apr_arch_file_io.h" +#include <stdlib.h> + +APR_DECLARE(apr_status_t) apr_threadattr_create(apr_threadattr_t **new, apr_pool_t *pool) +{ + (*new) = (apr_threadattr_t *)apr_palloc(pool, sizeof(apr_threadattr_t)); + + if ((*new) == NULL) { + return APR_ENOMEM; + } + + (*new)->pool = pool; + (*new)->attr = 0; + (*new)->stacksize = 0; + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr, apr_int32_t on) +{ + attr->attr |= APR_THREADATTR_DETACHED; + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr) +{ + return (attr->attr & APR_THREADATTR_DETACHED) ? APR_DETACH : APR_NOTDETACH; +} + +APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr, + apr_size_t stacksize) +{ + attr->stacksize = stacksize; + return APR_SUCCESS; +} + +APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr, + apr_size_t size) +{ + return APR_ENOTIMPL; +} + +static void apr_thread_begin(void *arg) +{ + apr_thread_t *thread = (apr_thread_t *)arg; + thread->exitval = thread->func(thread, thread->data); +} + + + +APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new, apr_threadattr_t *attr, + apr_thread_start_t func, void *data, + apr_pool_t *pool) +{ + apr_status_t stat; + apr_thread_t *thread; + + thread = (apr_thread_t *)apr_palloc(pool, sizeof(apr_thread_t)); + *new = thread; + + if (thread == NULL) { + return APR_ENOMEM; + } + + thread->attr = attr; + thread->func = func; + thread->data = data; + stat = apr_pool_create(&thread->pool, pool); + + if (stat != APR_SUCCESS) { + return stat; + } + + if (attr == NULL) { + stat = apr_threadattr_create(&thread->attr, thread->pool); + + if (stat != APR_SUCCESS) { + return stat; + } + } + + thread->tid = _beginthread(apr_thread_begin, NULL, + thread->attr->stacksize > 0 ? + thread->attr->stacksize : APR_THREAD_STACKSIZE, + thread); + + if (thread->tid < 0) { + return errno; + } + + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_os_thread_t) apr_os_thread_current() +{ + PIB *ppib; + TIB *ptib; + DosGetInfoBlocks(&ptib, &ppib); + return ptib->tib_ptib2->tib2_ultid; +} + + + +APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, apr_status_t retval) +{ + thd->exitval = retval; + _endthread(); + return -1; /* If we get here something's wrong */ +} + + + +APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, apr_thread_t *thd) +{ + ULONG rc; + TID waittid = thd->tid; + + if (thd->attr->attr & APR_THREADATTR_DETACHED) + return APR_EINVAL; + + rc = DosWaitThread(&waittid, DCWW_WAIT); + + if (rc == ERROR_INVALID_THREADID) + rc = 0; /* Thread had already terminated */ + + *retval = thd->exitval; + return APR_OS2_STATUS(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd) +{ + thd->attr->attr |= APR_THREADATTR_DETACHED; + return APR_SUCCESS; +} + + + +void apr_thread_yield() +{ + DosSleep(0); +} + + + +APR_DECLARE(apr_status_t) apr_os_thread_get(apr_os_thread_t **thethd, apr_thread_t *thd) +{ + *thethd = &thd->tid; + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_os_thread_put(apr_thread_t **thd, apr_os_thread_t *thethd, + apr_pool_t *pool) +{ + if ((*thd) == NULL) { + (*thd) = (apr_thread_t *)apr_pcalloc(pool, sizeof(apr_thread_t)); + (*thd)->pool = pool; + } + (*thd)->tid = *thethd; + return APR_SUCCESS; +} + + + +int apr_os_thread_equal(apr_os_thread_t tid1, apr_os_thread_t tid2) +{ + return tid1 == tid2; +} + + + +APR_DECLARE(apr_status_t) apr_thread_data_get(void **data, const char *key, apr_thread_t *thread) +{ + return apr_pool_userdata_get(data, key, thread->pool); +} + + + +APR_DECLARE(apr_status_t) apr_thread_data_set(void *data, const char *key, + apr_status_t (*cleanup) (void *), + apr_thread_t *thread) +{ + return apr_pool_userdata_set(data, key, cleanup, thread->pool); +} + +APR_POOL_IMPLEMENT_ACCESSOR(thread) + + + +static apr_status_t thread_once_cleanup(void *vcontrol) +{ + apr_thread_once_t *control = (apr_thread_once_t *)vcontrol; + + if (control->sem) { + DosCloseEventSem(control->sem); + } + + return APR_SUCCESS; +} + + + +APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control, + apr_pool_t *p) +{ + ULONG rc; + *control = (apr_thread_once_t *)apr_pcalloc(p, sizeof(apr_thread_once_t)); + rc = DosCreateEventSem(NULL, &(*control)->sem, 0, TRUE); + apr_pool_cleanup_register(p, control, thread_once_cleanup, apr_pool_cleanup_null); + return APR_FROM_OS_ERROR(rc); +} + + + +APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control, + void (*func)(void)) +{ + if (!control->hit) { + ULONG count, rc; + rc = DosResetEventSem(control->sem, &count); + + if (rc == 0 && count) { + control->hit = 1; + func(); + } + } + + return APR_SUCCESS; +} |