thread.c

Apache V2.0.15 Alpha For Linuxhttpd-2_0_15-alpha.tar.Z

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 * The Apache Software License, Version 1.1
 *
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 * reserved.
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 *       "This product includes software developed by the
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
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 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

#include "threadproc.h"

apr_status_t apr_threadattr_create(apr_threadattr_t **new, apr_pool_t *cont)
{
    (*new) = (apr_threadattr_t *)apr_palloc(cont, 
              sizeof(apr_threadattr_t));

    if ((*new) == NULL) {
        return APR_ENOMEM;
    }

    (*new)->cntxt = cont;
	(*new)->attr = (int32)B_NORMAL_PRIORITY;

    return APR_SUCCESS;
}

apr_status_t apr_threadattr_detach_get(apr_threadattr_t *attr, apr_int32_t on)
{
	if (on == 1){
		attr->detached = 1;
	} else {
		attr->detached = 0;
	}    
    return APR_SUCCESS;
}

apr_status_t apr_threadattr_detach_set(apr_threadattr_t *attr)
{
	if (attr->detached == 1){
		return APR_DETACH;
	}
	return APR_NOTDETACH;
}

apr_status_t apr_thread_create(apr_thread_t **new, apr_threadattr_t *attr,
                             apr_thread_start_t func, void *data,
                             apr_pool_t *cont)
{
    int32 temp;
    apr_status_t stat;
    
    (*new) = (apr_thread_t *)apr_palloc(cont, sizeof(apr_thread_t));
    if ((*new) == NULL) {
        return APR_ENOMEM;
    }

    (*new)->cntxt = cont;

    /* First we create the new thread...*/
	if (attr)
	    temp = attr->attr;
	else
	    temp = B_NORMAL_PRIORITY;

    stat = apr_pool_create(&(*new)->cntxt, cont);
    if (stat != APR_SUCCESS) {
        return stat;
    }

    (*new)->td = spawn_thread((thread_func)func, "apr thread", temp, data);
    /* Now we try to run it...*/
    if (resume_thread((*new)->td) == B_NO_ERROR) {
        return APR_SUCCESS;
    }
    else {
        return errno;
    } 
}

apr_status_t apr_thread_exit(apr_thread_t *thd, apr_status_t *retval)
{
    apr_pool_destroy(thd->cntxt);
	exit_thread ((status_t)retval);
	return APR_SUCCESS;
}

apr_status_t apr_thread_join(apr_status_t *retval, apr_thread_t *thd)
{
    if (wait_for_thread(thd->td,(void *)&retval) == B_NO_ERROR) {
        return APR_SUCCESS;
    }
    else {
        return errno;
    }
}

apr_status_t apr_thread_detach(apr_thread_t *thd)
{
	if (suspend_thread(thd->td) == B_NO_ERROR){
        return APR_SUCCESS;
    }
    else {
        return errno;
    }
}

apr_status_t apr_thread_data_get(void **data, const char *key, apr_thread_t *thread)
{
    return apr_pool_userdata_get(data, key, thread->cntxt);
}

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->cntxt);
}

apr_status_t apr_os_thread_get(apr_os_thread_t **thethd, apr_thread_t *thd)
{
    *thethd = &thd->td;
    return APR_SUCCESS;
}

apr_status_t apr_os_thread_put(apr_thread_t **thd, apr_os_thread_t *thethd, 
                             apr_pool_t *cont)
{
    if (cont == NULL) {
        return APR_ENOPOOL;
    }
    if ((*thd) == NULL) {
        (*thd) = (apr_thread_t *)apr_pcalloc(cont, sizeof(apr_thread_t));
        (*thd)->cntxt = cont;
    }
    (*thd)->td = *thethd;
    return APR_SUCCESS;
}