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1844590ad9
Change the isc_job_run() to not-make any allocations. The caller must make sure that it allocates isc_job_t - usually as part of the argument passed to the callback. For simple jobs, using isc_async_run() is advised as it allocates its own separate isc_job_t.
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <isc/async.h>
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#include <isc/atomic.h>
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#include <isc/barrier.h>
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#include <isc/condition.h>
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#include <isc/job.h>
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#include <isc/loop.h>
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#include <isc/magic.h>
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#include <isc/mem.h>
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#include <isc/mutex.h>
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#include <isc/refcount.h>
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#include <isc/result.h>
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#include <isc/signal.h>
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#include <isc/stack.h>
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#include <isc/strerr.h>
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#include <isc/thread.h>
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#include <isc/util.h>
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#include <isc/uv.h>
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#include <isc/work.h>
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#include "async_p.h"
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#include "job_p.h"
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#include "loop_p.h"
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void
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isc_async_run(isc_loop_t *loop, isc_job_cb cb, void *cbarg) {
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REQUIRE(VALID_LOOP(loop));
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REQUIRE(cb != NULL);
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isc_job_t *job = isc_mem_get(loop->mctx, sizeof(*job));
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*job = (isc_job_t){
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.link = ISC_LINK_INITIALIZER,
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.cb = cb,
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.cbarg = cbarg,
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};
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/*
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* Now send the half-initialized job to the loop queue.
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*/
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ISC_ASTACK_PUSH(loop->async_jobs, job, link);
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int r = uv_async_send(&loop->async_trigger);
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UV_RUNTIME_CHECK(uv_async_send, r);
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}
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void
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isc__async_cb(uv_async_t *handle) {
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isc_loop_t *loop = uv_handle_get_data(handle);
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REQUIRE(VALID_LOOP(loop));
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ISC_STACK(isc_job_t) drain = ISC_ASTACK_TO_STACK(loop->async_jobs);
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ISC_LIST(isc_job_t) jobs = ISC_LIST_INITIALIZER;
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isc_job_t *job = ISC_STACK_POP(drain, link);
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isc_job_t *next = NULL;
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while (job != NULL) {
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ISC_LIST_PREPEND(jobs, job, link);
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job = ISC_STACK_POP(drain, link);
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}
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for (job = ISC_LIST_HEAD(jobs),
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next = (job ? ISC_LIST_NEXT(job, link) : NULL);
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job != NULL;
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job = next, next = (job ? ISC_LIST_NEXT(job, link) : NULL))
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{
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job->cb(job->cbarg);
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isc_mem_put(loop->mctx, job, sizeof(*job));
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}
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}
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void
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isc__async_close(uv_handle_t *handle) {
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isc_loop_t *loop = uv_handle_get_data(handle);
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isc__async_cb(&loop->async_trigger);
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}
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