view src/os/win32/ngx_os.h @ 5468:5c410d6ca7dd

Resolver: improved code readability. Renamed ngx_resolver_query_t to ngx_resolver_hdr_t as it describes the header that is common to DNS queries and answers. Replaced the magic number 12 by the size of the header structure. The other changes are self-explanatory.
author Ruslan Ermilov <ru@nginx.com>
date Fri, 06 Dec 2013 14:30:27 +0400
parents d620f497c50f
children ec81934727a1
line wrap: on
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_OS_H_INCLUDED_
#define _NGX_OS_H_INCLUDED_


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


#define NGX_IO_SENDFILE    1


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_recv_pt        udp_recv;
    ngx_send_pt        send;
    ngx_send_chain_pt  send_chain;
    ngx_uint_t         flags;
} ngx_os_io_t;


ngx_int_t ngx_os_init(ngx_log_t *log);
void ngx_os_status(ngx_log_t *log);
ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid);

ssize_t ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_udp_wsarecv(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_udp_overlapped_wsarecv(ngx_connection_t *c, u_char *buf,
    size_t size);
ssize_t ngx_wsarecv_chain(ngx_connection_t *c, ngx_chain_t *chain);
ssize_t ngx_wsasend(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_overlapped_wsasend(ngx_connection_t *c, u_char *buf, size_t size);
ngx_chain_t *ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in,
    off_t limit);
ngx_chain_t *ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in,
    off_t limit);

void ngx_cdecl ngx_event_log(ngx_err_t err, const char *fmt, ...);


extern ngx_os_io_t  ngx_os_io;
extern ngx_uint_t   ngx_ncpu;
extern ngx_uint_t   ngx_max_wsabufs;
extern ngx_int_t    ngx_max_sockets;
extern ngx_uint_t   ngx_inherited_nonblocking;
extern ngx_uint_t   ngx_tcp_nodelay_and_tcp_nopush;
extern ngx_uint_t   ngx_win32_version;
extern char         ngx_unique[];


#endif /* _NGX_OS_H_INCLUDED_ */