mirror of
https://gitlab.isc.org/isc-projects/bind9
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90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/*
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* Copyright (C) 1999, 2000 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: taskpool.c,v 1.8 2000/07/27 09:51:18 tale Exp $ */
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#include <config.h>
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#include <isc/mem.h>
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#include <isc/taskpool.h>
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#include <isc/util.h>
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/***
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*** Types.
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***/
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struct isc_taskpool {
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isc_mem_t * mctx;
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unsigned int ntasks;
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isc_task_t ** tasks;
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};
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/***
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*** Functions.
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***/
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isc_result_t
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isc_taskpool_create(isc_taskmgr_t *tmgr, isc_mem_t *mctx,
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unsigned int ntasks, unsigned int quantum,
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isc_taskpool_t **poolp)
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{
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unsigned int i;
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isc_taskpool_t *pool;
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isc_result_t result;
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INSIST(ntasks > 0);
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pool = isc_mem_get(mctx, sizeof *pool);
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if (pool == NULL)
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return (ISC_R_NOMEMORY);
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pool->mctx = mctx;
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pool->ntasks = ntasks;
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pool->tasks = isc_mem_get(mctx, ntasks * sizeof(isc_task_t *));
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for (i = 0; i < ntasks; i++)
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pool->tasks[i] = NULL;
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for (i = 0; i < ntasks; i++) {
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result = isc_task_create(tmgr, quantum, &pool->tasks[i]);
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if (result != ISC_R_SUCCESS) {
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isc_taskpool_destroy(&pool);
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return (result);
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}
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}
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*poolp = pool;
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return (ISC_R_SUCCESS);
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}
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void isc_taskpool_gettask(isc_taskpool_t *pool, unsigned int hash,
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isc_task_t **targetp)
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{
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isc_task_attach(pool->tasks[hash % pool->ntasks], targetp);
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}
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void
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isc_taskpool_destroy(isc_taskpool_t **poolp) {
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unsigned int i;
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isc_taskpool_t *pool = *poolp;
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for (i = 0; i < pool->ntasks; i++) {
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if (pool->tasks[i] != NULL) {
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isc_task_detach(&pool->tasks[i]);
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}
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}
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isc_mem_put(pool->mctx, pool->tasks,
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pool->ntasks * sizeof(isc_task_t *));
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isc_mem_put(pool->mctx, pool, sizeof(*pool));
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*poolp = NULL;
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}
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