nginx/src/http/ngx_http_upstream.h
Igor Sysoev e5a222c6fe nginx-0.1.16-RELEASE import
*) Bugfix: if the response were transferred by chunks, then on the HEAD
       request the final chunk was issued.

    *) Bugfix: the "Connection: keep-alive" header were issued, even if the
       keepalive_timeout directive forbade the keep-alive use.

    *) Bugfix: the errors in the ngx_http_fastcgi_module caused the
       segmentation faults.

    *) Bugfix: the compressed response encrypted by SSL may not transferred
       complete.

    *) Bugfix: the TCP-specific TCP_NODELAY, TCP_NOPSUH, and TCP_CORK
       options, are not used for the unix domain sockets.

    *) Feature: the rewrite directive supports the arguments rewriting.

    *) Bugfix: the response code 400 was returned for the POST request with
       the "Content-Length: 0" header; the bug had appeared in 0.1.14.
2005-01-25 12:27:35 +00:00

123 lines
3.5 KiB
C

/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_
#define _NGX_HTTP_UPSTREAM_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <ngx_event_connect.h>
#include <ngx_event_pipe.h>
#include <ngx_http.h>
#define NGX_HTTP_UPSTREAM_FT_ERROR 0x02
#define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x04
#define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x08
#define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x10
#define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x20
#define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x40
#define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x80
#define NGX_HTTP_UPSTREAM_INVALID_HEADER 40
typedef struct {
time_t bl_time;
ngx_uint_t bl_state;
ngx_uint_t status;
time_t time;
ngx_str_t *peer;
} ngx_http_upstream_state_t;
typedef struct {
ngx_msec_t connect_timeout;
ngx_msec_t send_timeout;
ngx_msec_t read_timeout;
size_t send_lowat;
size_t header_buffer_size;
size_t busy_buffers_size;
size_t max_temp_file_size;
size_t temp_file_write_size;
ngx_uint_t next_upstream;
ngx_bufs_t bufs;
ngx_flag_t x_powered_by;
ngx_flag_t cyclic_temp_file;
ngx_path_t *temp_path;
} ngx_http_upstream_conf_t;
typedef struct ngx_http_upstream_s ngx_http_upstream_t;
struct ngx_http_upstream_s {
ngx_http_request_t *request;
ngx_peer_connection_t peer;
ngx_event_pipe_t pipe;
ngx_output_chain_ctx_t output;
ngx_chain_writer_ctx_t writer;
ngx_http_upstream_conf_t *conf;
ngx_buf_t header_in;
ngx_int_t (*create_request)(ngx_http_request_t *r);
ngx_int_t (*reinit_request)(ngx_http_request_t *r);
ngx_int_t (*process_header)(ngx_http_request_t *r);
ngx_int_t (*send_header)(ngx_http_request_t *r);
void (*abort_request)(ngx_http_request_t *r);
void (*finalize_request)(ngx_http_request_t *r,
ngx_int_t rc);
ngx_uint_t method;
ngx_str_t schema;
ngx_str_t uri;
ngx_str_t *location;
ngx_http_log_ctx_t *log_ctx;
ngx_log_handler_pt log_handler;
ngx_http_log_ctx_t *saved_log_ctx;
ngx_log_handler_pt saved_log_handler;
/* used to parse an upstream HTTP header */
ngx_uint_t status;
u_char *status_start;
u_char *status_end;
ngx_uint_t status_count;
ngx_uint_t parse_state;
ngx_http_upstream_state_t *state;
ngx_array_t states; /* of ngx_http_upstream_state_t */
unsigned cachable:1;
unsigned request_sent:1;
unsigned header_sent:1;
};
void ngx_http_upstream_init(ngx_http_request_t *r);
u_char *ngx_http_upstream_log_error(ngx_log_t *log, u_char *buf, size_t len);
extern char *ngx_http_upstream_header_errors[];
#endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */