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src/os/unix/ngx_os.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_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_chain_pt  send_chain;
  32.     ngx_uint_t         flags;
  33. ‌} ngx_os_io_t;


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


  44. ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  45. ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry, off_t limit);
  46. ssize_t ngx_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
  47. ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
  48. ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
  49.     off_t limit);

  51. #if (NGX_HAVE_AIO)
  52. ssize_t ngx_aio_read(ngx_connection_t *c, u_char *buf, size_t size);
  53. ssize_t ngx_aio_read_chain(ngx_connection_t *c, ngx_chain_t *cl, off_t limit);
  54. ssize_t ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size);
  55. ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in,
  56.     off_t limit);
  57. #endif


  60. #if (IOV_MAX > 64)
  61. ‌#define NGX_IOVS_PREALLOCATE  64
  62. #else
  63. ‌#define NGX_IOVS_PREALLOCATE  IOV_MAX
  64. #endif


  67. typedef struct {
  68.     struct iovec  *iovs;
  69.     ngx_uint_t     count;
  70.     size_t         size;
  71.     ngx_uint_t     nalloc;
  72. ‌} ngx_iovec_t;

  74. ngx_chain_t *ngx_output_chain_to_iovec(ngx_iovec_t *vec, ngx_chain_t *in,
  75.     size_t limit, ngx_log_t *log);


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


  81. extern ngx_os_io_t  ngx_os_io;
  82. extern ngx_int_t    ngx_ncpu;
  83. extern ngx_int_t    ngx_max_sockets;
  84. extern ngx_uint_t   ngx_inherited_nonblocking;
  85. extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;


  88. #if (NGX_FREEBSD)
  89. #include <ngx_freebsd.h>


  92. #elif (NGX_LINUX)
  93. #include <ngx_linux.h>


  96. #elif (NGX_SOLARIS)
  97. #include <ngx_solaris.h>


  100. #elif (NGX_DARWIN)
  101. #include <ngx_darwin.h>
  102. #endif


  105. #endif /* _NGX_OS_H_INCLUDED_ */

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