forked from xuos/xiuos
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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#include <stdint.h>
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#include "libserial.h"
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#include "usyscall.h"
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enum {
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NR_THREADS = 16,
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LOOP_TIMES = 0x1000000,
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};
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static int sem_id = -1;
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static uint32_t sum = 0;
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static int nr_thds = NR_THREADS;
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int do_calculation(int argc, char** argv)
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{
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for (uint32_t i = 0; i < LOOP_TIMES; i++) {
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sum++;
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}
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printf("test semaphore thd signal.\n");
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semaphore_signal(sem_id);
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char* params[] = { "do_cal", NULL };
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if (nr_thds != 0) {
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int tid = thread(do_calculation, "test_sem_thd", params);
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nr_thds--;
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}
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exit(0);
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return 0;
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}
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int main(int argc, char** argv)
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{
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printf("Test Semaphore.\n");
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sem_id = semaphore_new(0);
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if (sem_id < 0) {
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printf("new a kernel sem failed.\n");
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exit(1);
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}
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sum = 0;
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nr_thds = NR_THREADS;
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char* params[] = { "do_cal", NULL };
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if (nr_thds != 0) {
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int tid = thread(do_calculation, "test_sem_thd", params);
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nr_thds--;
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}
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for (int i = 0; i < NR_THREADS; i++) {
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semaphore_wait(sem_id);
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}
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printf("test thread sum after %d signal: 0x%x\n", NR_THREADS, sum);
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semaphore_free(sem_id);
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exit(0);
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return 0;
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}
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