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/* +----------------------------------------------------------------------+ | Swoole | +----------------------------------------------------------------------+ | This source file is subject to version 2.0 of the Apache license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.apache.org/licenses/LICENSE-2.0.html | | If you did not receive a copy of the Apache2.0 license and are unable| | to obtain it through the world-wide-web, please send a note to | | license@swoole.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: Tianfeng Han <rango@swoole.com> | | Twosee <twose@qq.com> | +----------------------------------------------------------------------+ */ #pragma once #include "swoole.h" #include <signal.h> #include <unordered_map> #include "swoole_lock.h" #include "swoole_pipe.h" #include "swoole_channel.h" #include "swoole_msg_queue.h" enum swWorkerStatus { SW_WORKER_BUSY = 1, SW_WORKER_IDLE = 2, SW_WORKER_EXIT = 3, }; enum swIPCMode { SW_IPC_NONE = 0, SW_IPC_UNIXSOCK = 1, SW_IPC_MSGQUEUE = 2, SW_IPC_SOCKET = 3, }; namespace swoole { enum WorkerMessageType { SW_WORKER_MESSAGE_STOP = 1, }; struct WorkerStopMessage { pid_t pid; uint16_t worker_id; }; class ExitStatus { private: pid_t pid_; int status_; public: ExitStatus(pid_t _pid, int _status) : pid_(_pid), status_(_status) {} pid_t get_pid() const { return pid_; } int get_status() const { return status_; } int get_code() const { return WEXITSTATUS(status_); } int get_signal() const { return WTERMSIG(status_); } bool is_normal_exit() { return WIFEXITED(status_); } }; static inline ExitStatus wait_process() { int status = 0; pid_t pid = ::wait(&status); return ExitStatus(pid, status); } static inline ExitStatus wait_process(pid_t _pid, int options) { int status = 0; pid_t pid = ::waitpid(_pid, &status, options); return ExitStatus(pid, status); } struct ProcessPool; struct Worker; struct WorkerGlobal { bool run_always; bool shutdown; uint32_t max_request; Worker *worker; time_t exit_time; }; struct Worker { pid_t pid; WorkerId id; ProcessPool *pool; MsgQueue *queue; bool redirect_stdout; bool redirect_stdin; bool redirect_stderr; /** * worker status, IDLE or BUSY */ uint8_t status; uint8_t type; uint8_t ipc_mode; uint8_t child_process; sw_atomic_t tasking_num; time_t start_time; sw_atomic_long_t dispatch_count; sw_atomic_long_t request_count; sw_atomic_long_t response_count; size_t coroutine_num; Mutex *lock; UnixSocket *pipe_object; network::Socket *pipe_master; network::Socket *pipe_worker; network::Socket *pipe_current; void *ptr; void *ptr2; ssize_t send_pipe_message(const void *buf, size_t n, int flags); void set_status(enum swWorkerStatus _status) { status = _status; } bool is_busy() { return status == SW_WORKER_BUSY; } bool is_idle() { return status == SW_WORKER_IDLE; } }; struct StreamInfo { network::Socket *socket; network::Socket *last_connection; char *socket_file; int socket_port; String *response_buffer; }; struct ProcessPool { /** * reloading */ bool reloading; bool running; bool reload_init; bool read_message; bool started; bool schedule_by_sysvmsg; uint8_t ipc_mode; pid_t master_pid; uint32_t reload_worker_i; uint32_t max_wait_time; uint64_t reload_count; time_t reload_last_time; Worker *reload_workers; /** * process type */ uint8_t type; /** * worker->id = start_id + i */ uint16_t start_id; /** * use message queue IPC */ uint8_t use_msgqueue; /** * use stream socket IPC */ uint8_t use_socket; char *packet_buffer; uint32_t max_packet_size_; /** * message queue key */ key_t msgqueue_key; uint32_t worker_num; uint32_t max_request; uint32_t max_request_grace; /** * No idle task work process is available. */ uint8_t scheduler_warning; time_t warning_time; int (*onTask)(ProcessPool *pool, EventData *task); void (*onWorkerStart)(ProcessPool *pool, int worker_id); void (*onMessage)(ProcessPool *pool, const char *data, uint32_t length); void (*onWorkerStop)(ProcessPool *pool, int worker_id); void (*onWorkerMessage)(ProcessPool *pool, EventData *msg); int (*onWorkerNotFound)(ProcessPool *pool, const ExitStatus &exit_status); int (*main_loop)(ProcessPool *pool, Worker *worker); sw_atomic_t round_id; Worker *workers; std::vector<std::shared_ptr<UnixSocket>> *pipes; std::unordered_map<pid_t, Worker *> *map_; Reactor *reactor; MsgQueue *queue; StreamInfo *stream_info_; Channel *message_box = nullptr; void *ptr; inline void set_type(int _type) { uint32_t i; type = _type; for (i = 0; i < worker_num; i++) { workers[i].type = type; } } inline void set_start_id(int _start_id) { uint32_t i; start_id = _start_id; for (i = 0; i < worker_num; i++) { workers[i].id = start_id + i; } } inline Worker *get_worker(int worker_id) { return &(workers[worker_id - start_id]); } Worker *get_worker_by_pid(pid_t pid) { auto iter = map_->find(pid); if (iter == map_->end()) { return nullptr; } return iter->second; } void set_max_request(uint32_t _max_request, uint32_t _max_request_grace); int get_max_request(); void set_protocol(int task_protocol, uint32_t max_packet_size); bool detach(); int wait(); int start(); void shutdown(); bool reload(); pid_t spawn(Worker *worker); int dispatch(EventData *data, int *worker_id); int response(const char *data, int length); int dispatch_blocking(EventData *data, int *dst_worker_id); int dispatch_blocking(const char *data, uint32_t len); int add_worker(Worker *worker); int del_worker(Worker *worker); void destroy(); int create(uint32_t worker_num, key_t msgqueue_key = 0, swIPCMode ipc_mode = SW_IPC_NONE); int create_message_box(size_t memory_size); int push_message(uint8_t type, const void *data, size_t length); int push_message(EventData *msg); int pop_message(void *data, size_t size); int listen(const char *socket_file, int blacklog); int listen(const char *host, int port, int blacklog); int schedule(); static void kill_timeout_worker(Timer *timer, TimerNode *tnode); }; }; // namespace swoole static sw_inline int swoole_waitpid(pid_t __pid, int *__stat_loc, int __options) { int ret; do { ret = waitpid(__pid, __stat_loc, __options); } while (ret < 0 && errno == EINTR); return ret; } static sw_inline int swoole_kill(pid_t __pid, int __sig) { return kill(__pid, __sig); } extern swoole::WorkerGlobal SwooleWG; // Worker Global Variable