#include <stdio.h>
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#include <stdlib.h>
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#include <copperplate/traceobj.h>
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#include <alchemy/task.h>
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#include <alchemy/sem.h>
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static struct traceobj trobj;
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static int tseq[] = {
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8, 1, 9, 4, 10, 2, 11, 12, 3, 5, 13
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};
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static RT_TASK t_bgnd, t_fgnd;
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static RT_SEM sem;
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static void background_task(void *arg)
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{
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int ret;
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traceobj_enter(&trobj);
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traceobj_mark(&trobj, 1);
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ret = rt_sem_p(&sem, TM_INFINITE);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 2);
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ret = rt_task_suspend(&t_fgnd);
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traceobj_check(&trobj, ret, 0);
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rt_task_sleep(20000000ULL);
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traceobj_mark(&trobj, 3);
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ret = rt_task_resume(&t_fgnd);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 13);
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traceobj_exit(&trobj);
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}
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static void foreground_task(void *arg)
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{
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int ret;
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traceobj_enter(&trobj);
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traceobj_mark(&trobj, 4);
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ret = rt_sem_p(&sem, TM_INFINITE);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 5);
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traceobj_exit(&trobj);
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}
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int main(int argc, char *const argv[])
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{
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int ret;
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traceobj_init(&trobj, argv[0], sizeof(tseq) / sizeof(int));
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ret = rt_sem_create(&sem, "SEMA", 0, S_FIFO);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 8);
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ret = rt_task_create(&t_bgnd, "BGND", 0, 20, 0);
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traceobj_check(&trobj, ret, 0);
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ret = rt_task_start(&t_bgnd, background_task, NULL);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 9);
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ret = rt_task_create(&t_fgnd, "FGND", 0, 21, 0);
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traceobj_check(&trobj, ret, 0);
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ret = rt_task_start(&t_fgnd, foreground_task, NULL);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 10);
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ret = rt_sem_v(&sem);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 11);
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ret = rt_sem_v(&sem);
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traceobj_check(&trobj, ret, 0);
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traceobj_mark(&trobj, 12);
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traceobj_join(&trobj);
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traceobj_verify(&trobj, tseq, sizeof(tseq) / sizeof(int));
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exit(0);
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}
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