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dc878e3098
when more than one event was scheduled in the isc_aysnc queue, they were executed in reverse order. we need to pull events off the back of queue instead the front, so that uv_loop will run them in the right order. note that isc_job_run() has the same behavior, because it calls uv_idle_start() directly. in that case we just document it so it'll be less surprising in the future.
114 lines
2.5 KiB
C
114 lines
2.5 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 <sched.h> /* IWYU pragma: keep */
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#include <setjmp.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define UNIT_TESTING
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#include <cmocka.h>
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#include <isc/atomic.h>
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#include <isc/job.h>
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#include <isc/loop.h>
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#include <isc/os.h>
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#include <isc/result.h>
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#include <isc/util.h>
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#include "job.c"
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#include <tests/isc.h>
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static atomic_uint scheduled;
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static atomic_uint executed;
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#define MAX_EXECUTED 1000000
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static void
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shutdown_cb(void *arg) {
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UNUSED(arg);
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isc_loopmgr_shutdown(loopmgr);
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}
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static void
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job_cb(void *arg __attribute__((__unused__))) {
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unsigned int n = atomic_fetch_add(&executed, 1);
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if (n <= MAX_EXECUTED) {
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atomic_fetch_add(&scheduled, 1);
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isc_job_run(loopmgr, job_cb, loopmgr);
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} else {
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isc_job_run(loopmgr, shutdown_cb, loopmgr);
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}
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}
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static void
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job_run_cb(void *arg __attribute__((__unused__))) {
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atomic_fetch_add(&scheduled, 1);
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isc_job_run(loopmgr, job_cb, loopmgr);
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}
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ISC_RUN_TEST_IMPL(isc_job_run) {
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atomic_init(&scheduled, 0);
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atomic_init(&executed, 0);
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isc_loopmgr_setup(loopmgr, job_run_cb, loopmgr);
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isc_loopmgr_run(loopmgr);
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assert_int_equal(atomic_load(&scheduled), atomic_load(&executed));
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}
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static char string[32] = "";
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int n1 = 1, n2 = 2, n3 = 3, n4 = 4, n5 = 5;
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static void
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append(void *arg) {
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char value[32];
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sprintf(value, "%d", *(int *)arg);
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strlcat(string, value, 10);
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}
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static void
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job_multiple(void *arg) {
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UNUSED(arg);
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/* These will be processed in reverse order */
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isc_job_run(loopmgr, append, &n1);
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isc_job_run(loopmgr, append, &n2);
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isc_job_run(loopmgr, append, &n3);
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isc_job_run(loopmgr, append, &n4);
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isc_job_run(loopmgr, append, &n5);
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isc_loopmgr_shutdown(loopmgr);
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}
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ISC_RUN_TEST_IMPL(isc_job_multiple) {
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string[0] = '\0';
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isc_loop_setup(isc_loop_main(loopmgr), job_multiple, loopmgr);
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isc_loopmgr_run(loopmgr);
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assert_string_equal(string, "54321");
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}
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ISC_TEST_LIST_START
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ISC_TEST_ENTRY_CUSTOM(isc_job_run, setup_loopmgr, teardown_loopmgr)
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ISC_TEST_ENTRY_CUSTOM(isc_job_multiple, setup_loopmgr, teardown_loopmgr)
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ISC_TEST_LIST_END
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ISC_TEST_MAIN
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