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src/event/ngx_event_pipe.h - nginx-1.7.10

Data types defined

Macros defined

Source code


  2. /*
  3. * Copyright (C) Igor Sysoev
  4. * Copyright (C) Nginx, Inc.
  5. */


  8. #ifndef _NGX_EVENT_PIPE_H_INCLUDED_
  9. ‌#define _NGX_EVENT_PIPE_H_INCLUDED_


  12. #include <ngx_config.h>
  13. #include <ngx_core.h>
  14. #include <ngx_event.h>


  17. ‌typedef struct ngx_event_pipe_s  ngx_event_pipe_t;

  19. ‌typedef ngx_int_t (*ngx_event_pipe_input_filter_pt)(ngx_event_pipe_t *p,
  20.                                                     ngx_buf_t *buf);
  21. ‌typedef ngx_int_t (*ngx_event_pipe_output_filter_pt)(void *data,
  22.                                                      ngx_chain_t *chain);


  25. ‌struct ngx_event_pipe_s {
  26.     ngx_connection_t  *upstream;
  27.     ngx_connection_t  *downstream;

  29.     ngx_chain_t       *free_raw_bufs;
  30.     ngx_chain_t       *in;
  31.     ngx_chain_t      **last_in;

  33.     ngx_chain_t       *out;
  34.     ngx_chain_t       *free;
  35.     ngx_chain_t       *busy;

  37.     /*
  38.      * the input filter i.e. that moves HTTP/1.1 chunks
  39.      * from the raw bufs to an incoming chain
  40.      */

  42.     ngx_event_pipe_input_filter_pt    input_filter;
  43.     void                             *input_ctx;

  45.     ngx_event_pipe_output_filter_pt   output_filter;
  46.     void                             *output_ctx;

  48.     unsigned           read:1;
  49.     unsigned           cacheable:1;
  50.     unsigned           single_buf:1;
  51.     unsigned           free_bufs:1;
  52.     unsigned           upstream_done:1;
  53.     unsigned           upstream_error:1;
  54.     unsigned           upstream_eof:1;
  55.     unsigned           upstream_blocked:1;
  56.     unsigned           downstream_done:1;
  57.     unsigned           downstream_error:1;
  58.     unsigned           cyclic_temp_file:1;

  60.     ngx_int_t          allocated;
  61.     ngx_bufs_t         bufs;
  62.     ngx_buf_tag_t      tag;

  64.     ssize_t            busy_size;

  66.     off_t              read_length;
  67.     off_t              length;

  69.     off_t              max_temp_file_size;
  70.     ssize_t            temp_file_write_size;

  72.     ngx_msec_t         read_timeout;
  73.     ngx_msec_t         send_timeout;
  74.     ssize_t            send_lowat;

  76.     ngx_pool_t        *pool;
  77.     ngx_log_t         *log;

  79.     ngx_chain_t       *preread_bufs;
  80.     size_t             preread_size;
  81.     ngx_buf_t         *buf_to_file;

  83.     size_t             limit_rate;
  84.     time_t             start_sec;

  86.     ngx_temp_file_t   *temp_file;

  88.     /* STUB */ int     num;
  89. };


  92. ngx_int_t ngx_event_pipe(ngx_event_pipe_t *p, ngx_int_t do_write);
  93. ngx_int_t ngx_event_pipe_copy_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf);
  94. ngx_int_t ngx_event_pipe_add_free_buf(ngx_event_pipe_t *p, ngx_buf_t *b);


  97. #endif /* _NGX_EVENT_PIPE_H_INCLUDED_ */

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