release/src/router/nginx/src/os/unix/ngx_os.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #ifndef _NGX_OS_H_INCLUDED_
   9 #define _NGX_OS_H_INCLUDED_
  10
  11
  12 #include <ngx_config.h>
  13 #include <ngx_core.h>
  14
  15
  16 #define NGX_IO_SENDFILE    1
  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_recv_pt        udp_recv;
  29     ngx_send_pt        send;
  30     ngx_send_chain_pt  send_chain;
  31     ngx_uint_t         flags;
  32 } ngx_os_io_t;
  33
  34
  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_os_specific_init(ngx_log_t *log);
  38 void ngx_os_specific_status(ngx_log_t *log);
  39 ngx_int_t ngx_daemon(ngx_log_t *log);
  40 ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid);
  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_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  46 ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
  47 ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
  48     off_t limit);
  49
  50 #if (NGX_HAVE_AIO)
  51 ssize_t ngx_aio_read(ngx_connection_t *c, u_char *buf, size_t size);
  52 ssize_t ngx_aio_read_chain(ngx_connection_t *c, ngx_chain_t *cl);
  53 ssize_t ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size);
  54 ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in,
  55     off_t limit);
  56 #endif
  57
  58
  59 extern ngx_os_io_t  ngx_os_io;
  60 extern ngx_int_t    ngx_ncpu;
  61 extern ngx_int_t    ngx_max_sockets;
  62 extern ngx_uint_t   ngx_inherited_nonblocking;
  63 extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;
  64
  65
  66 #if (NGX_FREEBSD)
  67 #include <ngx_freebsd.h>
  68
  69
  70 #elif (NGX_LINUX)
  71 #include <ngx_linux.h>
  72
  73
  74 #elif (NGX_SOLARIS)
  75 #include <ngx_solaris.h>
  76
  77
  78 #elif (NGX_DARWIN)
  79 #include <ngx_darwin.h>
  80 #endif
  81
  82
  83 #endif /* _NGX_OS_H_INCLUDED_ */