int main(){
int i=0;
for(i=0;i<5;i++)
{
chopstick[i] = sem_creat();
}
i=0;
pthread_t pthread[4];
pthread_create(&pthread[0],NULL,philosopher0,NULL);
pthread_create(&pthread[1],NULL,philosopher1,NULL);
pthread_create(&pthread[2],NULL,philosopher2,NULL);
pthread_create(&pthread[3],NULL,philosopher3,NULL);
pthread_create(&pthread[4],NULL,philosopher4,NULL);
i =0;
while(i<5)
{
pthread_join(pthread[i],NULL);
i++;
}
return 0;
}
int cgiMain(void)
{
int ret;
key_t key;
key_t key_cgi;
int flag;
int shm_id,sem_id, sem_id_cgi;
char *shm;
// 创建并关联共享内存
key = ftok("./vs_shm",0);
key_cgi = ftok("./vs_shm_cgi",0);
shm_id = shmget(key,SEGSIZE,0);
if(-1 == shm_id)
{
cgiHeaderContentType("text/html; charset=gb2312");
puts("<html><head><title>share memeroy error</title><h1><font color='red'>create shared memory error</f><h1><html><head>");
return -1;
}
shm = (char *)shmat(shm_id,0,0);
if (-1 == (int)shm)
{
cgiHeaderContentType("text/html; charset=gb2312");
puts(" attach shared memory error\n");
return -1;
}
// 创建互斥锁
sem_id = sem_creat(key); // vs程序操作共享内存信号量
sem_id_cgi = sem_creat(key_cgi); // 外部程序cgi操作共享内存信号量
cgiFormInteger("flag", &flag, 1);
if(1 == flag){ //getData
cgi_rtv_get_action(shm);
post_v(sem_id); // 使能vs程序操作共享内存信号量
wait_v(sem_id_cgi);
ret = *(int *)shm;
if(0 != ret )
{
char temp[32];
sprintf(temp,"error is %d\n",ret);
cgiHeaderContentType("text/html; charset=gb2312");
puts("<html><head><title>rtv get error</title><h1><font color='red'>wrong username or password</f><h1>");
puts(temp);
return -1;
}
cgi_rtv_puts(shm);
}
else if(0 == flag){
cgi_rtv_set_action(shm);
post_v(sem_id); // 使能vs程序操作共享内存信号量
wait_v(sem_id_cgi);
ret = *(int *)shm;
if(0 != ret )
{
char temp[32];
sprintf(temp,"error is %d\n",ret);
cgiHeaderContentType("text/html; charset=gb2312");
puts("<html><head><title>login error</title><h1><font color='red'>wrong username or password</f><h1>");
puts(temp);
return -1;
}
cgi_rtv_puts(shm);
}
shmdt(shm);
return 0;
}
int main(int argc, char *argv[])
{
int procnum = 10;
int loopnum = 100;
int i = 0, j = 0;
printf("please enter child process number:\n");
scanf("%d", &procnum);
printf("please enter child process test number:\n");
scanf("%d", &loopnum);
//create shm
int ret = 0;
int shmhdl = 0;
ret = IPC_CreateShm(".", sizeof(int), &shmhdl);
if (ret != 0) {
printf("fun IPC_CreatShm() error:%d.\n", ret);
return ret;
}
//create sem
int semid = 0;
ret = sem_creat(g_key, &semid);
if (ret != 0) {
if (ret == SEMERR_EEXIST) {
ret = sem_open(g_key, &semid);
if (ret != 0) {
printf("fun sem_open() error, %d.\n", ret);
return ret;
}
}
else {
return ret;
}
}
int val = 0;
ret = sem_getval(semid, &val);
if (ret != 0) {
printf("func sem_getval() err:%d.\n", ret);
return ret;
}
printf("sem val is %d.\n", val);
// pid_t pid;
// for (i = 0; i < procnum; i++) {
// pid = fork();
// if (pid == 0) {
// for (j = 0; j < loopnum; ++j) {
// TestFunc(loopnum);
// }
// exit(0);
// }
// }
// int childpid = 0;
// while ((childpid = waitpid(-1, NULL, 0)) > 0) {
// ;
// }
pthread_t tidarr[200];
for (; i < procnum; ++i) {
pthread_create(&tidarr[i], NULL, thread_routine, NULL);
}
for (i = 0; i < procnum; ++i) {
pthread_join(tidarr[i], NULL);
}
printf("parent process exit.\n");
return 0;
}