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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_PROCESS_CHAN_H_INCLUDED_
#define _NXT_PROCESS_CHAN_H_INCLUDED_
#define NXT_CHAN_MSG_MAX NXT_CHAN_MSG_DATA
typedef enum {
NXT_CHAN_MSG_QUIT = 0,
NXT_CHAN_MSG_NEW_CHAN,
NXT_CHAN_MSG_CHANGE_FILE,
NXT_CHAN_MSG_DATA,
} nxt_chan_msg_type_e;
typedef struct {
nxt_pid_t pid;
uint32_t engine;
uint32_t generation;
nxt_chan_t *chan;
} nxt_process_chan_t;
typedef struct {
nxt_pid_t pid;
uint32_t engine;
size_t max_size;
size_t max_share;
} nxt_proc_msg_new_chan_t;
/*
* nxt_process_chan_data_t is allocaiton size
* enabling effective reuse of memory pool cache.
*/
typedef union {
nxt_buf_t buf;
nxt_proc_msg_new_chan_t new_chan;
} nxt_process_chan_data_t;
typedef void (*nxt_process_chan_handler_t)(nxt_thread_t *thr,
nxt_chan_recv_msg_t *msg);
void nxt_process_chan_create(nxt_thread_t *thr, nxt_process_chan_t *proc,
nxt_process_chan_handler_t *handlers);
void nxt_process_chan_write(nxt_cycle_t *cycle, nxt_uint_t type,
nxt_fd_t fd, uint32_t stream, nxt_buf_t *b);
void nxt_process_new_chan(nxt_cycle_t *cycle, nxt_process_chan_t *proc);
void nxt_process_chan_change_log_file(nxt_cycle_t *cycle, nxt_uint_t slot,
nxt_fd_t fd);
void nxt_process_chan_quit_handler(nxt_thread_t *thr, nxt_chan_recv_msg_t *msg);
void nxt_process_chan_new_handler(nxt_thread_t *thr, nxt_chan_recv_msg_t *msg);
void nxt_process_chan_change_log_file_handler(nxt_thread_t *thr,
nxt_chan_recv_msg_t *msg);
void nxt_process_chan_data_handler(nxt_thread_t *thr, nxt_chan_recv_msg_t *msg);
void nxt_process_chan_empty_handler(nxt_thread_t *thr,
nxt_chan_recv_msg_t *msg);
#endif /* _NXT_PROCESS_CHAN_H_INCLUDED_ */
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