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1742. [bug] If isc_taskmgr_create() was not able to create the

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requested number of worker threads then destruction
                        of the manager would trigger an INSIST() failure.
                        [RT #12790]
This commit is contained in:
Mark Andrews
2004-10-15 00:45:34 +00:00
parent cd0a7c71c0
commit 61a4d5e7d8
2 changed files with 12 additions and 10 deletions
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15
lib/isc/task.c
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@@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: task.c,v 1.91 2004/03/05 05:10:50 marka Exp $ */
/* $Id: task.c,v 1.92 2004/10/15 00:45:34 marka Exp $ */
/*
* Principal Author: Bob Halley
@@ -105,8 +105,8 @@ struct isc_taskmgr {
unsigned int magic;
isc_mem_t * mctx;
isc_mutex_t lock;
unsigned int workers;
#ifdef ISC_PLATFORM_USETHREADS
unsigned int workers;
isc_thread_t * threads;
#endif /* ISC_PLATFORM_USETHREADS */
/* Locked by task manager lock. */
@@ -1025,8 +1025,7 @@ manager_free(isc_taskmgr_t *manager) {
#ifdef ISC_PLATFORM_USETHREADS
(void)isc_condition_destroy(&manager->exclusive_granted);
(void)isc_condition_destroy(&manager->work_available);
isc_mem_put(manager->mctx, manager->threads,
manager->workers * sizeof(isc_thread_t));
isc_mem_free(manager->mctx, manager->threads);
#endif /* ISC_PLATFORM_USETHREADS */
DESTROYLOCK(&manager->lock);
manager->magic = 0;
@@ -1067,7 +1066,6 @@ isc_taskmgr_create(isc_mem_t *mctx, unsigned int workers,
return (ISC_R_NOMEMORY);
manager->magic = TASK_MANAGER_MAGIC;
manager->mctx = NULL;
manager->workers = 0;
if (isc_mutex_init(&manager->lock) != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"isc_mutex_init() %s",
@@ -1077,7 +1075,9 @@ isc_taskmgr_create(isc_mem_t *mctx, unsigned int workers,
goto cleanup_mgr;
}
#ifdef ISC_PLATFORM_USETHREADS
manager->threads = isc_mem_get(mctx, workers * sizeof(isc_thread_t));
manager->workers = 0;
manager->threads = isc_mem_allocate(mctx,
workers * sizeof(isc_thread_t));
if (manager->threads == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup_lock;
@@ -1107,7 +1107,6 @@ isc_taskmgr_create(isc_mem_t *mctx, unsigned int workers,
manager->tasks_running = 0;
manager->exclusive_requested = ISC_FALSE;
manager->exiting = ISC_FALSE;
manager->workers = 0;
isc_mem_attach(mctx, &manager->mctx);
@@ -1144,7 +1143,7 @@ isc_taskmgr_create(isc_mem_t *mctx, unsigned int workers,
cleanup_workavailable:
(void)isc_condition_destroy(&manager->work_available);
cleanup_threads:
isc_mem_put(mctx, manager->threads, workers * sizeof(isc_thread_t));
isc_mem_free(mctx, manager->threads);
cleanup_lock:
DESTROYLOCK(&manager->lock);
#endif