src/os/unix/ngx_os.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  */
   5
   6
   7 #ifndef _NGX_OS_H_INCLUDED_
   8 #define _NGX_OS_H_INCLUDED_
   9
  10
  11 #include <ngx_config.h>
  12 #include <ngx_core.h>
  13
  14
  15 #define NGX_IO_SENDFILE    1
  16 #define NGX_IO_ZEROCOPY    2
  17
  18
  19 typedef ssize_t (*ngx_recv_pt)(ngx_connection_t *c, u_char *buf, size_t size);
  20 typedef ssize_t (*ngx_recv_chain_pt)(ngx_connection_t *c, ngx_chain_t *in);
  21 typedef ssize_t (*ngx_send_pt)(ngx_connection_t *c, u_char *buf, size_t size);
  22 typedef ngx_chain_t *(*ngx_send_chain_pt)(ngx_connection_t *c, ngx_chain_t *in,
  23                                           off_t limit);
  24
  25 typedef struct {
  26     ngx_recv_pt        recv;
  27     ngx_recv_chain_pt  recv_chain;
  28     ngx_send_pt        send;
  29     ngx_send_chain_pt  send_chain;
  30     ngx_uint_t         flags;
  31 } ngx_os_io_t;
  32
  33
  34 void ngx_debug_init();
  35 ngx_int_t ngx_os_init(ngx_log_t *log);
  36 void ngx_os_status(ngx_log_t *log);
  37 ngx_int_t ngx_daemon(ngx_log_t *log);
  38 ngx_int_t ngx_posix_init(ngx_log_t *log);
  39 void ngx_posix_status(ngx_log_t *log);
  40 ngx_int_t ngx_posix_post_conf_init(ngx_log_t *log);
  41
  42
  43 ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  44 ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry);
  45 ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
  46 ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
  47                               off_t limit);
  48
  49
  50 extern ngx_os_io_t  ngx_os_io;
  51 extern ngx_int_t    ngx_ncpu;
  52 extern ngx_int_t    ngx_max_sockets;
  53 extern ngx_uint_t   ngx_inherited_nonblocking;
  54 extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;
  55
  56 #define ngx_stderr_fileno  STDERR_FILENO
  57
  58 #if (NGX_FREEBSD)
  59 #include <ngx_freebsd.h>
  60
  61
  62 #elif (NGX_LINUX)
  63 #include <ngx_linux.h>
  64
  65
  66 #elif (NGX_SOLARIS)
  67 #include <ngx_solaris.h>
  68 #endif
  69
  70
  71 #endif /* _NGX_OS_H_INCLUDED_ */