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/*
* Copyright (C) by OpenResty Inc.
*/
#ifndef _NGX_HTTP_LUA_PIPE_H_INCLUDED_
#define _NGX_HTTP_LUA_PIPE_H_INCLUDED_
#include "ngx_http_lua_common.h"
typedef ngx_int_t (*ngx_http_lua_pipe_input_filter)(void *data, ssize_t bytes);
typedef struct {
ngx_connection_t *c;
ngx_http_lua_pipe_input_filter input_filter;
void *input_filter_ctx;
size_t rest;
ngx_chain_t *buf_in;
ngx_chain_t *bufs_in;
ngx_buf_t buffer;
ngx_err_t pipe_errno;
unsigned err_type:16;
unsigned eof:1;
} ngx_http_lua_pipe_ctx_t;
typedef struct ngx_http_lua_pipe_s ngx_http_lua_pipe_t;
typedef struct {
ngx_pid_t _pid;
ngx_msec_t write_timeout;
ngx_msec_t stdout_read_timeout;
ngx_msec_t stderr_read_timeout;
ngx_msec_t wait_timeout;
/* pipe hides the implementation from the Lua binding */
ngx_http_lua_pipe_t *pipe;
} ngx_http_lua_ffi_pipe_proc_t;
typedef int (*ngx_http_lua_pipe_retval_handler)(
ngx_http_lua_ffi_pipe_proc_t *proc, lua_State *L);
struct ngx_http_lua_pipe_s {
ngx_pool_t *pool;
ngx_chain_t *free_bufs;
ngx_rbtree_node_t *node;
int stdin_fd;
int stdout_fd;
int stderr_fd;
ngx_http_lua_pipe_ctx_t *stdin_ctx;
ngx_http_lua_pipe_ctx_t *stdout_ctx;
ngx_http_lua_pipe_ctx_t *stderr_ctx;
ngx_http_lua_pipe_retval_handler retval_handler;
ngx_http_cleanup_pt *cleanup;
ngx_http_request_t *r;
size_t buffer_size;
unsigned closed:1;
unsigned dead:1;
unsigned timeout:1;
unsigned merge_stderr:1;
};
typedef struct {
u_char color;
u_char reason_code;
int status;
ngx_http_lua_co_ctx_t *wait_co_ctx;
ngx_http_lua_ffi_pipe_proc_t *proc;
} ngx_http_lua_pipe_node_t;
typedef struct {
int signo;
char *signame;
} ngx_http_lua_pipe_signal_t;
#if !(NGX_WIN32) && defined(HAVE_SOCKET_CLOEXEC_PATCH)
#define HAVE_NGX_LUA_PIPE 1
void ngx_http_lua_pipe_init(void);
ngx_int_t ngx_http_lua_pipe_add_signal_handler(ngx_cycle_t *cycle);
#endif
#endif /* _NGX_HTTP_LUA_PIPE_H_INCLUDED_ */
/* vi:set ft=c ts=4 sw=4 et fdm=marker: */
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