double acl_meter_time(const char *filename, int line, const char *info)
{
struct timeval now;
double f;
METER_CTX_T *ctx = tls_calloc(sizeof(METER_CTX_T));
if (ctx->init_done == 0) {
ctx->init_done = 1;
gettimeofday(&ctx->stamp, NULL);
}
gettimeofday(&now, NULL);
now.tv_usec -= ctx->stamp.tv_usec;
if (now.tv_usec < 0) {
--now.tv_sec;
now.tv_usec += 1000000;
}
now.tv_sec -= ctx->stamp.tv_sec;
f = now.tv_sec * 1000.0 + now.tv_usec/1000.0;
if (info)
printf("tid=%lu, %s(%d), %s: time inter = %8.3f ms\r\n",
(unsigned long) acl_pthread_self(), filename, line, info, f);
else
printf("tid=%lu, %s(%d): time inter = %8.3f ms\r\n",
(unsigned long) acl_pthread_self(), filename, line, f);
gettimeofday(&ctx->stamp, NULL);
return (f);
}
static void thread_main(void*)
{
printf("%s: thread: %ld\r\n", __FUNCTION__,
(unsigned long) acl_pthread_self());
acl::aio_handle* handle;
// 每个线程创建单独的异步事件句柄
handle = new acl::aio_handle(__kernel_event ?
acl::ENGINE_KERNEL : acl::ENGINE_SELECT);
int i;
for (i = 0; i < __parallel; i++)
{
async_file* fp = new async_file(handle, __path, i);
if (fp->open_write() == false)
{
printf("open file error: %s\r\n", acl::last_serror());
delete fp;
break;
}
}
if (i == 0)
{
printf("thread(%lu) no file opened!\r\n", (unsigned long)
acl_pthread_self());
delete handle;
return;
}
// 进入异步事件循环过程
while (true)
{
if (handle->check() == false)
break;
if (__nok == __parallel)
{
printf("%s: thread(%lu) over, total: %d\r\n", __FUNCTION__,
(unsigned long) acl_pthread_self(), __nok);
break;
}
}
// 因为 IO 句柄是延迟释放的，所以需要再次检查一遍
handle->check();
// 销毁异步事件句柄
delete handle;
}
bool master_service::thread_on_read(acl::socket_stream* stream)
{
logger("thread id: %lu", acl_pthread_self());
acl::http_response res(stream);
// 响应数据体为 xml 格式
res.response_header().set_content_type("text/html");
// 读 HTTP 请求头
if (res.read_header() == false)
return false;
acl::string buf;
// 读 HTTP 请求体数据
if (res.get_body(buf) == false)
return false;
acl::http_client* client = res.get_client();
// 判断客户端是否希望保持长连接
bool keep_alive = client->keep_alive();
// 返回数据给客户端
res.response_header()
.set_status(200)
.set_keep_alive(keep_alive)
.set_content_length(var_cfg_buf_size);
if (res.response(res_buf_, var_cfg_buf_size) == false)
return false;
return keep_alive ? true : false;
}
bool master_service::thread_on_accept(acl::socket_stream* conn)
{
if (0)
acl_tcp_so_linger(conn->sock_handle(), 1, 0);
logger("thread id: %lu", acl_pthread_self());
return true;
}
void fiber_io_check(void)
{
if (__thread_fiber != NULL)
return;
acl_assert(acl_pthread_once(&__once_control, thread_init) == 0);
__maxfd = acl_open_limit(0);
if (__maxfd <= 0)
__maxfd = MAXFD;
__thread_fiber = (FIBER_TLS *) acl_mymalloc(sizeof(FIBER_TLS));
__thread_fiber->event = event_create(__maxfd);
__thread_fiber->io_fibers = (ACL_FIBER **)
acl_mycalloc(__maxfd, sizeof(ACL_FIBER *));
__thread_fiber->ev_fiber = acl_fiber_create(fiber_io_loop,
__thread_fiber->event, STACK_SIZE);
__thread_fiber->io_count = 0;
__thread_fiber->nsleeping = 0;
__thread_fiber->io_stop = 0;
acl_ring_init(&__thread_fiber->ev_timer);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self()) {
__main_fiber = __thread_fiber;
atexit(fiber_io_main_free);
} else if (acl_pthread_setspecific(__fiber_key, __thread_fiber) != 0)
acl_msg_fatal("acl_pthread_setspecific error!");
}
int acl_fiber_sem_wait(ACL_FIBER_SEM *sem)
{
ACL_FIBER *curr;
if (sem->tid != acl_pthread_self())
return -1;
if (sem->num > 0) {
sem->num--;
return sem->num;
}
curr = acl_fiber_running();
if (curr == NULL)
return -1;
acl_ring_prepend(&sem->waiting, &curr->me);
acl_fiber_switch();
/* if switch to me because other killed me, I should detach myself;
* else if because other unlock, I'll be detached twice which is
* hamless because ACL_RING can deal with it.
*/
acl_ring_detach(&curr->me);
return sem->num;
}
static void fiber_check(void)
{
if (__thread_fiber != NULL)
return;
acl_assert(acl_pthread_once(&__once_control, thread_init) == 0);
__thread_fiber = (FIBER_TLS *) acl_mycalloc(1, sizeof(FIBER_TLS));
#ifdef USE_JMP
/* set context NULL when using setjmp that setcontext will not be
* called in fiber_swap.
*/
__thread_fiber->original.context = NULL;
#else
__thread_fiber->original.context = (ucontext_t *)
acl_mycalloc(1, sizeof(ucontext_t));
#endif
__thread_fiber->fibers = NULL;
__thread_fiber->size = 0;
__thread_fiber->slot = 0;
__thread_fiber->idgen = 0;
__thread_fiber->count = 0;
acl_ring_init(&__thread_fiber->ready);
acl_ring_init(&__thread_fiber->dead);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self()) {
__main_fiber = __thread_fiber;
atexit(fiber_schedule_main_free);
} else if (acl_pthread_setspecific(__fiber_key, __thread_fiber) != 0)
acl_msg_fatal("acl_pthread_setspecific error!");
}
ICMP_CHAT *icmp_chat_create(ACL_AIO* aio, int check_tid)
{
ICMP_CHAT *chat;
chat = (ICMP_CHAT*) acl_mycalloc(1, sizeof(ICMP_CHAT));
chat->aio = aio;
acl_ring_init(&chat->host_head);
chat->is = icmp_stream_open(aio);
chat->seq_no = 0;
chat->count = 0;
#ifdef ACL_UNIX
chat->pid = getpid();
#elif defined(ACL_WINDOWS)
chat->pid = _getpid();
#endif
chat->tid = (unsigned long) acl_pthread_self();
chat->check_tid = check_tid;
if (aio != NULL)
icmp_chat_aio_init(chat, aio);
else
icmp_chat_sio_init(chat);
return (chat);
}
bool master_service::thread_on_read(acl::socket_stream* conn)
{
http_servlet* servlet = (http_servlet*) conn->get_ctx();
if (servlet == NULL)
logger_fatal("servlet null!");
if (conf_ == NULL)
return servlet->doRun("127.0.0.1:11211", conn);
acl::stream_hook* hook = conn->get_hook();
if (hook != NULL)
return servlet->doRun("127.0.0.1:11211", conn);
// 对于使用 SSL 方式的流对象，需要将 SSL IO 流对象注册至网络
// 连接流对象中，即用 ssl io 替换 stream 中默认的底层 IO 过程
logger("begin setup ssl hook...");
acl::polarssl_io* ssl = new acl::polarssl_io(*conf_, true);
if (conn->setup_hook(ssl) == ssl)
{
logger_error("setup_hook error!");
ssl->destroy();
return false;
}
logger("setup hook ok, tid: %lu", (unsigned long) acl_pthread_self());
return servlet->doRun("127.0.0.1:11211", conn);
}
static void free_buf_fn(void *arg)
{
ACL_VSTRING *buf = (ACL_VSTRING*) arg;
printf(">> current thread id=%u, buf = %s\r\n",
(unsigned int) acl_pthread_self(), acl_vstring_str(buf));
acl_vstring_free(buf);
}
static void free_vstring(void *arg)
{
const char *myname = "free_vstring";
ACL_VSTRING *buf = (ACL_VSTRING*) arg;
acl_vstring_free(buf);
printf("%s: tid=%d, free vstring ok\n", myname, (int) acl_pthread_self());
}
static void once_init(void)
{
if ((unsigned long) acl_pthread_self() == acl_main_thread_self()) {
acl_pthread_key_create(&once_key, dummy);
atexit(main_free_tls);
} else
acl_pthread_key_create(&once_key, free_tls);
}
static void main_thread_atexit(void *arg)
{
ACL_VSTRING *buf = (ACL_VSTRING*) arg;
printf("main thread exit now, tid=%u, buf=%s\r\n",
(unsigned int) acl_pthread_self(), acl_vstring_str(buf));
printf("in the main thread_atexit, input any key to exit\r\n");
getchar();
}
static void *test_thread_fn(void *arg)
{
THREAD_CTX *ctx = (THREAD_CTX*) arg;
ctx->i++;
printf("current tid is: %lu\r\n", (unsigned long int) acl_pthread_self());
return (ctx);
}
static void on_thread_exit(void *arg)
{
const char *myname = "on_thread_exit";
acl_pthread_pool_t *thr_pool = (acl_pthread_pool_t*) arg;
/* 判断一下，仅是为了验证参数传递过程 */
assert(thr_pool == __thr_pool);
printf("%s: thread(%u) exit now\r\n", myname, (unsigned int) acl_pthread_self());
}
// 子线程处理过程
static void thread_main(void*)
{
for (int i = 0; i < __loop_count; i++)
{
connect_pool* pool = (connect_pool*) __conn_manager->peek();
if (pool == NULL)
{
printf("\r\n>>>%lu(%d): peek pool failed<<<\r\n",
(unsigned long) acl_pthread_self(), __LINE__);
check_all_connections();
exit (1);
}
// 设置连接的超时时间及读超时时间
pool->set_timeout(2, 2);
// 从连接池中获取一个连接
connect_client* conn = (connect_client*) pool->peek();
if (conn == NULL)
{
printf("\r\n>>>%lu: peek connect failed from %s<<<\r\n",
(unsigned long) acl_pthread_self(),
pool->get_addr());
check_all_connections();
exit (1);
}
// 需要对获得的连接重置状态，以清除上次请求过程的临时数据
else
conn->reset();
// 开始新的 HTTP 请求过程
if (get(conn, i) == false)
{
printf("one request failed, close connection\r\n");
// 错误连接需要关闭
pool->put(conn, false);
}
else
pool->put(conn, true);
}
printf(">>>>thread: %lu OVER<<<<\r\n", (unsigned long) acl_pthread_self());
}
ACL_FIBER_SEM *acl_fiber_sem_create(int num)
{
ACL_FIBER_SEM *sem = (ACL_FIBER_SEM *)
acl_mymalloc(sizeof(ACL_FIBER_SEM));
sem->num = num;
acl_ring_init(&sem->waiting);
sem->tid = acl_pthread_self();
return sem;
}
static void thread_free_dummy(void* ctx)
{
if ((unsigned long) acl_pthread_self() != acl_main_thread_self())
acl_myfree(ctx);
#ifdef HAS_MYSQL_DLL
if (__mysql_thread_end)
__mysql_thread_end();
#endif
}
int acl_read_wait(ACL_SOCKET fd, int timeout)
{
const char *myname = "acl_read_wait";
int op = EPOLL_CTL_ADD, delay = timeout * 1000, *epoll_fd;
struct epoll_event ee, events[1];
acl_assert(acl_pthread_once(&epoll_once, thread_epoll_init) == 0);
epoll_fd = (int*) acl_pthread_getspecific(epoll_key);
if (epoll_fd == NULL) {
epoll_fd = (int*) acl_mymalloc(sizeof(int));
acl_assert(acl_pthread_setspecific(epoll_key, epoll_fd) == 0);
if ((unsigned long) acl_pthread_self()
== acl_main_thread_self())
{
main_epoll_read_fd = epoll_fd;
atexit(main_epoll_end);
}
*epoll_fd = epoll_create(1);
}
ee.events = EPOLLIN | EPOLLHUP | EPOLLERR;
ee.data.u64 = 0;
ee.data.fd = fd;
if (epoll_ctl(*epoll_fd, op, fd, &ee) == -1) {
acl_msg_error("%s(%d): epoll_ctl error: %s, fd: %d",
myname, __LINE__, acl_last_serror(), fd);
return -1;
}
if (epoll_wait(*epoll_fd, events, 1, delay) == -1) {
acl_msg_error("%s(%d): epoll_wait error: %s, fd: %d",
myname, __LINE__, acl_last_serror(), fd);
return -1;
}
if ((events[0].events & (EPOLLERR | EPOLLHUP)) != 0)
return -1;
if ((events[0].events & EPOLLIN) == 0) {
acl_set_error(ACL_ETIMEDOUT);
return -1;
}
ee.events = 0;
ee.data.u64 = 0;
ee.data.fd = fd;
if (epoll_ctl(*epoll_fd, EPOLL_CTL_DEL, fd, &ee) == -1) {
acl_msg_error("%s(%d): epoll_ctl error: %s, fd: %d",
myname, __LINE__, acl_last_serror(), fd);
return -1;
}
return 0;
}
static void slice_key_init(void)
{
unsigned long curr_tid = (unsigned long) acl_pthread_self();
unsigned long main_tid = (unsigned long) acl_main_thread_self();
if (curr_tid == main_tid) {
acl_pthread_key_create(&__mem_slice_key, NULL);
atexit(main_thread_slice_free);
} else
acl_pthread_key_create(&__mem_slice_key, (void (*)(void*)) mem_slice_free);
}
static ACL_MEM_SLICE *mem_slice_create(void)
{
const char *myname = "mem_slice_create";
ACL_MEM_SLICE *mem_slice;
acl_pthread_once(&once_control, slice_key_init);
if (__mem_slice_key == (acl_pthread_key_t) -1)
acl_msg_fatal("%s(%d): __mem_slice_key(%d) invalid,"
" call acl_mem_slice_init or acl_mem_slice_set first",
myname, __LINE__, (int) __mem_slice_key);
mem_slice = acl_pthread_getspecific(__mem_slice_key);
if (mem_slice != NULL)
return mem_slice;
mem_slice = (ACL_MEM_SLICE*)
acl_default_calloc(__FILE__, __LINE__, 1, sizeof(ACL_MEM_SLICE));
if (mem_slice == NULL)
acl_msg_fatal("%s(%d): can't alloc for mem_slice(%s)",
myname, __LINE__, acl_last_serror());
mem_slice->slice_pool = acl_slice_pool_create(__mem_base,
__mem_nslice, __mem_slice_flag);
mem_slice->tid = (unsigned long) acl_pthread_self();
mem_slice->list = private_array_create(__mem_list_init_size);
MUTEX_INIT(mem_slice);
mem_slice->tls_key = __mem_slice_key;
mem_slice->nalloc_gc = __mem_nalloc_gc;
mem_slice->slice_flag = __mem_slice_flag;
acl_pthread_setspecific(__mem_slice_key, mem_slice);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self())
__main_mem_slice = mem_slice;
acl_msg_info("%s(%d): thread(%ld) set myown mem_slice(%p)",
myname, __LINE__, (long) mem_slice->tid, mem_slice);
return mem_slice;
}
static int on_thread_init(void *arg)
{
const char *myname = "on_thread_init";
acl_pthread_pool_t *thr_pool = (acl_pthread_pool_t*) arg;
/* 判断一下，仅是为了验证参数传递过程 */
assert(thr_pool == __thr_pool);
printf("%s: thread(%u) init now\r\n", myname, (unsigned int) acl_pthread_self());
/* 返回0表示继续执行该线程获得的新任务，返回-1表示停止执行该任务 */
return (0);
}
void acl_mem_slice_destroy(void)
{
ACL_MEM_SLICE *mem_slice = acl_pthread_getspecific(__mem_slice_key);
if (mem_slice == NULL)
return;
/* 释放该线程所拥有的内存切片池对象 */
mem_slice_free(mem_slice);
acl_pthread_setspecific(__mem_slice_key, NULL);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self())
__main_mem_slice = NULL;
}
int acl_fiber_sem_trywait(ACL_FIBER_SEM *sem)
{
if (sem->tid != acl_pthread_self())
return -1;
if (sem->num > 0) {
sem->num--;
return sem->num;
}
return -1;
}
static void thread_epoll_end(void *ctx)
{
const char *myname = "thread_epoll_end";
EPOLL_CTX *epoll_ctx = (EPOLL_CTX*) ctx;
acl_msg_info("%s(%d), %s: close epoll_fd: %d, tid: %lu, %lu",
__FILE__, __LINE__, myname, epoll_ctx->epfd,
epoll_ctx->tid, acl_pthread_self());
close(epoll_ctx->epfd);
acl_myfree(epoll_ctx);
}
void master_service::proc_on_init()
{
logger("thread id: %lu", acl_pthread_self());
if (var_cfg_buf_size <= 0)
var_cfg_buf_size = 1024;
res_buf_ = (char*) acl_mymalloc(var_cfg_buf_size + 1);
int i;
for (i = 0; i < var_cfg_buf_size; i++)
res_buf_[i] = 'X';
res_buf_[i] = 0;
}
static void worker_thread(void *arg)
{
THREAD_CTX *ctx = (THREAD_CTX*) arg; /* 获得用户自定义对象 */
unsigned int i = 0;
static __thread ACL_VSTRING *buf1 = NULL;
static __thread ACL_VSTRING *buf2 = NULL;
/* 仅是验证参数传递过程 */
assert(ctx->thr_pool == __thr_pool);
if (buf1 == NULL)
buf1 = acl_vstring_alloc(256);
if (buf2 == NULL)
buf2 = acl_vstring_alloc(256);
acl_vstring_sprintf(buf1, "buf1: tid=%u",
(unsigned int) acl_pthread_self());
acl_vstring_sprintf(buf2, "buf2: tid=%u",
(unsigned int) acl_pthread_self());
/* 注册函数，当该线程退出时自动释放 buf 内存空间 */
acl_pthread_atexit_add(buf1, free_buf_fn);
acl_pthread_atexit_add(buf2, free_buf_fn);
while (i < 5) {
if (__local != i)
acl_msg_fatal("__local=%d invalid", __local);
printf("thread id=%u, i=%d, __local=%d\r\n",
(unsigned int) acl_pthread_self(), ctx->i, __local);
i++;
/* 在本线程中将线程局部变量加1 */
__local++;
sleep(1);
}
acl_myfree(ctx);
/* 至此，该工作线程进入空闲状态，直到空闲超时退出 */
}
static DWORD WINAPI RunThreadWrap(LPVOID data)
#endif
{
acl_pthread_t *thread = (acl_pthread_t *) data;
void *return_arg;
ACL_FIFO *tls_value_list_ptr = tls_value_list_get();
unsigned long *tid = 0;
/* 只是为了避免与主线程的 h_thread->handle = handle 产生冲突 */
if (__thread_inited)
acl_pthread_mutex_lock(&__thread_lock);
if (__thread_inited)
acl_pthread_mutex_unlock(&__thread_lock);
thread->id = acl_pthread_self();
return_arg = (void*) thread->start_routine(thread->routine_arg);
/* 释放由 acl_pthread_setspecific 添加的线程局部变量 */
while (1) {
TLS_VALUE *tls_value = private_fifo_pop(tls_value_list_ptr);
if (tls_value == NULL)
break;
if (tls_value->tls_key == NULL
|| tls_value->tls_key->destructor == NULL
|| tls_value->tls_key->key < 0
|| tls_value->tls_key->key >= ACL_PTHREAD_KEYS_MAX)
{
acl_default_free(__FILE__, __LINE__, tls_value);
continue;
}
tls_value->tls_key->destructor(tls_value->value);
acl_default_free(__FILE__, __LINE__, tls_value);
}
private_fifo_free(tls_value_list_ptr, NULL);
/* 如果线程创建时为分离方式则需要关闭线程句柄 */
if (thread->detached) {
if (!CloseHandle(thread->handle)) {
acl_msg_error("close handle error(%s)",
acl_last_serror());
}
}
acl_default_free(__FILE__, __LINE__, thread);
return (DWORD) return_arg;
}
static void main_epoll_end(void)
{
const char *myname = "main_epoll_end";
if (main_epoll_ctx != NULL) {
acl_msg_info("%s(%d), %s: close epoll_fd: %d, tid: %lu, %lu",
__FILE__, __LINE__, myname, main_epoll_ctx->epfd,
main_epoll_ctx->tid, acl_pthread_self());
close(main_epoll_ctx->epfd);
acl_myfree(main_epoll_ctx);
main_epoll_ctx = NULL;
}
}
static void *tls_calloc(size_t len)
{
void *ptr;
(void) acl_pthread_once(&once_control, once_init);
ptr = (void*) acl_pthread_getspecific(once_key);
if (ptr == NULL) {
ptr = acl_mycalloc(1, len);
acl_pthread_setspecific(once_key, ptr);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self())
__tls = ptr;
}
return ptr;
}