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src/os/unix/ngx_os.h - nginx source code

Data types defined

Macros defined

Source code


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


  8. #ifndef _NGX_OS_H_INCLUDED_
  9. ‌#define _NGX_OS_H_INCLUDED_


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


  16. ‌#define NGX_IO_SENDFILE    1


  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.     off_t limit);
  22. ‌typedef ssize_t (*ngx_send_pt)(ngx_connection_t *c, u_char *buf, size_t size);
  23. ‌typedef ngx_chain_t *(*ngx_send_chain_pt)(ngx_connection_t *c, ngx_chain_t *in,
  24.     off_t limit);

  26. ‌typedef struct {
  27.     ngx_recv_pt        recv;
  28.     ngx_recv_chain_pt  recv_chain;
  29.     ngx_recv_pt        udp_recv;
  30.     ngx_send_pt        send;
  31.     ngx_send_pt        udp_send;
  32.     ngx_send_chain_pt  udp_send_chain;
  33.     ngx_send_chain_pt  send_chain;
  34.     ngx_uint_t         flags;
  35. ‌} ngx_os_io_t;


  38. ngx_int_t ngx_os_init(ngx_log_t *log);
  39. void ngx_os_status(ngx_log_t *log);
  40. ngx_int_t ngx_os_specific_init(ngx_log_t *log);
  41. void ngx_os_specific_status(ngx_log_t *log);
  42. ngx_int_t ngx_daemon(ngx_log_t *log);
  43. ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_pid_t pid);


  46. ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  47. ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry, off_t limit);
  48. ssize_t ngx_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  49. ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
  50. ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
  51.     off_t limit);
  52. ssize_t ngx_udp_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
  53. ngx_chain_t *ngx_udp_unix_sendmsg_chain(ngx_connection_t *c, ngx_chain_t *in,
  54.     off_t limit);


  57. #if (IOV_MAX > 64)
  58. ‌#define NGX_IOVS_PREALLOCATE  64
  59. #else
  60. ‌#define NGX_IOVS_PREALLOCATE  IOV_MAX
  61. #endif


  64. ‌typedef struct {
  65.     struct iovec  *iovs;
  66.     ngx_uint_t     count;
  67.     size_t         size;
  68.     ngx_uint_t     nalloc;
  69. ‌} ngx_iovec_t;

  71. ngx_chain_t *ngx_output_chain_to_iovec(ngx_iovec_t *vec, ngx_chain_t *in,
  72.     size_t limit, ngx_log_t *log);


  75. ssize_t ngx_writev(ngx_connection_t *c, ngx_iovec_t *vec);


  78. extern ngx_os_io_t  ngx_os_io;
  79. extern ngx_int_t    ngx_ncpu;
  80. extern ngx_int_t    ngx_max_sockets;
  81. extern ngx_uint_t   ngx_inherited_nonblocking;
  82. extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;


  85. #if (NGX_FREEBSD)
  86. #include <ngx_freebsd.h>


  89. #elif (NGX_LINUX)
  90. #include <ngx_linux.h>


  93. #elif (NGX_SOLARIS)
  94. #include <ngx_solaris.h>


  97. #elif (NGX_DARWIN)
  98. #include <ngx_darwin.h>
  99. #endif


  102. #endif /* _NGX_OS_H_INCLUDED_ */

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