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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_OS_H_INCLUDED_
#define _NGX_OS_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#define NGX_IO_SENDFILE 1
#define NGX_IO_ZEROCOPY 2
typedef ssize_t (*ngx_recv_pt)(ngx_connection_t *c, u_char *buf, size_t size);
typedef ssize_t (*ngx_recv_chain_pt)(ngx_connection_t *c, ngx_chain_t *in);
typedef ssize_t (*ngx_send_pt)(ngx_connection_t *c, u_char *buf, size_t size);
typedef ngx_chain_t *(*ngx_send_chain_pt)(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
typedef struct {
ngx_recv_pt recv;
ngx_recv_chain_pt recv_chain;
ngx_send_pt send;
ngx_send_chain_pt send_chain;
ngx_uint_t flags;
} ngx_os_io_t;
void ngx_debug_init();
ngx_int_t ngx_os_init(ngx_log_t *log);
void ngx_os_status(ngx_log_t *log);
ngx_int_t ngx_daemon(ngx_log_t *log);
ngx_int_t ngx_posix_init(ngx_log_t *log);
void ngx_posix_status(ngx_log_t *log);
ngx_int_t ngx_posix_post_conf_init(ngx_log_t *log);
ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry);
ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size);
ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
extern ngx_os_io_t ngx_os_io;
extern ngx_int_t ngx_ncpu;
extern ngx_int_t ngx_max_sockets;
extern ngx_uint_t ngx_inherited_nonblocking;
extern ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush;
#define ngx_stderr_fileno STDERR_FILENO
#if (NGX_FREEBSD)
#include <ngx_freebsd.h>
#elif (NGX_LINUX)
#include <ngx_linux.h>
#elif (NGX_SOLARIS)
#include <ngx_solaris.h>
#endif
#endif /* _NGX_OS_H_INCLUDED_ */
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