diff options
Diffstat (limited to 'lib/isc/include/isc/taskpool.h')
| -rw-r--r-- | lib/isc/include/isc/taskpool.h | 64 |
1 files changed, 58 insertions, 6 deletions
diff --git a/lib/isc/include/isc/taskpool.h b/lib/isc/include/isc/taskpool.h index fd07bfd5b126..46f395ea246f 100644 --- a/lib/isc/include/isc/taskpool.h +++ b/lib/isc/include/isc/taskpool.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004-2007, 2011, 2012 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1999-2001 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id: taskpool.h,v 1.15 2007/06/19 23:47:18 tbox Exp $ */ +/* $Id$ */ #ifndef ISC_TASKPOOL_H #define ISC_TASKPOOL_H 1 @@ -83,11 +83,50 @@ isc_taskpool_create(isc_taskmgr_t *tmgr, isc_mem_t *mctx, *\li #ISC_R_UNEXPECTED */ -void -isc_taskpool_gettask(isc_taskpool_t *pool, unsigned int hash, - isc_task_t **targetp); +void +isc_taskpool_gettask(isc_taskpool_t *pool, isc_task_t **targetp); +/*%< + * Attach to a task from the pool. Currently the next task is chosen + * from the pool at random. (This may be changed in the future to + * something that guaratees balance.) + */ + +int +isc_taskpool_size(isc_taskpool_t *pool); /*%< - * Attach to the task corresponding to the hash value "hash". + * Returns the number of tasks in the task pool 'pool'. + */ + +isc_result_t +isc_taskpool_expand(isc_taskpool_t **sourcep, unsigned int size, + isc_taskpool_t **targetp); + +/*%< + * If 'size' is larger than the number of tasks in the pool pointed to by + * 'sourcep', then a new taskpool of size 'size' is allocated, the existing + * tasks from are moved into it, additional tasks are created to bring the + * total number up to 'size', and the resulting pool is attached to + * 'targetp'. + * + * If 'size' is less than or equal to the tasks in pool 'source', then + * 'sourcep' is attached to 'targetp' without any other action being taken. + * + * In either case, 'sourcep' is detached. + * + * Requires: + * + * \li 'sourcep' is not NULL and '*source' is not NULL + * \li 'targetp' is not NULL and '*source' is NULL + * + * Ensures: + * + * \li On success, '*targetp' points to a valid task pool. + * \li On success, '*sourcep' points to NULL. + * + * Returns: + * + * \li #ISC_R_SUCCESS + * \li #ISC_R_NOMEMORY */ void @@ -100,6 +139,19 @@ isc_taskpool_destroy(isc_taskpool_t **poolp); * \li '*poolp' is a valid task pool. */ +void +isc_taskpool_setprivilege(isc_taskpool_t *pool, isc_boolean_t priv); +/*%< + * Set the privilege flag on all tasks in 'pool' to 'priv'. If 'priv' is + * true, then when the task manager is set into privileged mode, only + * tasks wihin this pool will be able to execute. (Note: It is important + * to turn the pool tasks' privilege back off before the last task finishes + * executing.) + * + * Requires: + * \li 'pool' is a valid task pool. + */ + ISC_LANG_ENDDECLS #endif /* ISC_TASKPOOL_H */ |