fumiama/simple-dict
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优化线程创建

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源文雨
2022-10-15 13:34:43 +08:00
parent e518a9552c
commit ae65f2f015
1 changed files with 40 additions and 33 deletions
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73
server.c
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@@ -619,22 +619,22 @@ static void cleanup_thread(thread_timer_t* timer) {
sigemptyset(&mask);
sigaddset(&mask, SIGPIPE); // 防止处理嵌套
pthread_sigmask(SIG_BLOCK, &mask, NULL);
puts("Start cleaning");
printf("Start cleaning, ");
if(timer->accept_fd) {
close(timer->accept_fd);
timer->accept_fd = 0;
puts("Close accept");
printf("Close accept, ");
}
close_dict(timer->index);
timer->thread = 0;
pthread_cond_destroy(&timer->c);
puts("Destroy accept cond");
printf("Destroy accept cond, ");
pthread_mutex_destroy(&timer->mc);
puts("Destroy accept mutex");
printf("Destroy accept mutex, ");
setdicts[timer->index].data[0] = 0;
pthread_rwlock_wrlock(&timer->mb);
timer->isbusy = 0;
puts("Clear busy");
printf("Clear busy, ");
pthread_rwlock_unlock(&timer->mb);
puts("Finish cleaning");
}
@@ -668,26 +668,6 @@ static void handle_accept(void *p) {
pthread_cleanup_push((void*)&cleanup_thread, p);
puts("Handling accept...");
while(1) {
pthread_t thread = timer_pointer_of(p)->timerthread;
if(!thread || pthread_kill(thread, 0)) {
puts("Creating timer thread...");
pthread_cond_init(&timer_pointer_of(p)->tc, NULL);
pthread_mutex_init(&timer_pointer_of(p)->tmc, NULL);
if (pthread_create(&thread, &attr, (void *)&accept_timer, p)) {
perror("Error creating timer thread");
cleanup_thread(timer_pointer_of(p));
putchar('\n');
return;
}
timer_pointer_of(p)->timerthread = thread;
puts("Creating timer thread succeeded");
} else {
puts("Waking up timer thread...");
pthread_mutex_lock(&timer_pointer_of(p)->tmc);
pthread_cond_signal(&timer_pointer_of(p)->tc); // wakeup thread
pthread_mutex_unlock(&timer_pointer_of(p)->tmc);
puts("Waking up timer thread succeeded");
}
int accept_fd = timer_pointer_of(p)->accept_fd;
uint32_t index = timer_pointer_of(p)->index;
uint8_t *buff = timer_pointer_of(p)->buf;
@@ -822,7 +802,6 @@ static void accept_client(int fd) {
close_dict(0);
for(int i = 0; i < THREADCNT; i++) pthread_rwlock_init(&timers[i].mb, NULL);
while(1) {
puts("Ready for accept, waitting...");
int p = 0;
while(p < THREADCNT) {
pthread_rwlock_rdlock(&timers[p].mb);
@@ -835,15 +814,26 @@ static void accept_client(int fd) {
sleep(1);
continue;
}
pthread_rwlock_unlock(&timers[p].mb);
printf("Ready for accept on slot No.%d, ", p);
thread_timer_t* timer = &timers[p];
pthread_rwlock_unlock(&timer->mb);
pthread_rwlock_wrlock(&timer->mb);
timer->isbusy = 1;
pthread_rwlock_unlock(&timer->mb);
puts("Set thread status to busy, waitting...");
#ifdef LISTEN_ON_IPV6
struct sockaddr_in6 client_addr;
#else
struct sockaddr_in client_addr;
#endif
int accept_fd;
while((accept_fd=accept(fd, (struct sockaddr *)&client_addr, &struct_len))<=0)
while((accept_fd=accept(fd, (struct sockaddr *)&client_addr, &struct_len))<=0) {
perror("Accept client error");
pthread_rwlock_wrlock(&timer->mb);
timer->isbusy = 0;
pthread_rwlock_unlock(&timer->mb);
continue;
}
#ifdef LISTEN_ON_IPV6
uint16_t port = ntohs(client_addr.sin6_port);
struct in6_addr in = client_addr.sin6_addr;
@@ -857,15 +847,11 @@ static void accept_client(int fd) {
#endif
time_t t = time(NULL);
printf("\n> %sAccept client %s:%u at slot No.%d, ", ctime(&t), str, port, p);
thread_timer_t* timer = &timers[p];
timer->accept_fd = accept_fd;
timer->index = p;
timer->touch = time(NULL);
reset_seq(p);
pthread_rwlock_wrlock(&timer->mb);
timer->isbusy = 1;
pthread_rwlock_unlock(&timer->mb);
printf("Set thread status to busy, ");
// start or wakeup accept thread
if(timer->thread) {
pthread_mutex_lock(&timer->mc);
pthread_cond_signal(&timer->c); // wakeup thread
@@ -878,8 +864,29 @@ static void accept_client(int fd) {
perror("Error creating thread");
cleanup_thread(timer);
putchar('\n');
continue;
} else puts("Thread created");
}
// start or wakeup timer thread
pthread_t thread = timer->timerthread;
if(!thread || pthread_kill(thread, 0)) {
printf("Creating timer thread...");
pthread_cond_init(&timer->tc, NULL);
pthread_mutex_init(&timer->tmc, NULL);
if (pthread_create(&timer->timerthread, &attr, (void *)&accept_timer, timer)) {
perror("Error creating timer thread");
cleanup_thread(timer);
putchar('\n');
continue;
}
puts("succeeded");
} else {
printf("Waking up timer thread...");
pthread_mutex_lock(&timer->tmc);
pthread_cond_signal(&timer->tc); // wakeup thread
pthread_mutex_unlock(&timer->tmc);
puts("succeeded");
}
}
}