Mercurial > hg > nginx
view src/core/ngx_resolver.h @ 2945:87da6664fb49 stable-0.7
merge r2897, r2898, r2899, r2901, r2902, r2904, r2905, r2906, r2907,
r2909, r2910, r2922, r2923, r2924, r2925, r2929:
various win32 fixes:
*) use no-threads for Unix builds only
*) Win32 returns ERROR_PATH_NOT_FOUND instead of ERROR_FILE_NOT_FOUND
*) add trailing zero to a file name in ngx_win32_rename_file()
*) fix logging in ngx_win32_rename_file()
*) allow shared memory segments more than 4G
*) fix memory leak in successful case
*) log shared memory name in failure case
*) test that zone has the same addresses in different processes
*) add drive letter for Win32 root path
*) log GetExitCodeProcess()'s errno
*) test premature process termination
*) fix debug logging
*) exit if no workers could not be started
*) do not quit old workers if no new workers could not be started
*) a signaller process should stop configuration processing just after
it is able to get pid file, this allows to not open log files, etc.
*) win32 master process had aready closed listening sockets
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 15 Jun 2009 09:48:15 +0000 |
parents | 41fd9a2e0755 |
children | f0d596e84634 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #ifndef _NGX_RESOLVER_H_INCLUDED_ #define _NGX_RESOLVER_H_INCLUDED_ #define NGX_RESOLVE_A 1 #define NGX_RESOLVE_CNAME 5 #define NGX_RESOLVE_PTR 12 #define NGX_RESOLVE_MX 15 #define NGX_RESOLVE_TXT 16 #define NGX_RESOLVE_DNAME 39 #define NGX_RESOLVE_FORMERR 1 #define NGX_RESOLVE_SERVFAIL 2 #define NGX_RESOLVE_NXDOMAIN 3 #define NGX_RESOLVE_NOTIMP 4 #define NGX_RESOLVE_REFUSED 5 #define NGX_RESOLVE_TIMEDOUT NGX_ETIMEDOUT #define NGX_NO_RESOLVER (void *) -1 #define NGX_RESOLVER_MAX_RECURSION 50 typedef struct { ngx_connection_t *connection; struct sockaddr *sockaddr; socklen_t socklen; ngx_str_t server; ngx_log_t *log; } ngx_udp_connection_t; typedef struct ngx_resolver_ctx_s ngx_resolver_ctx_t; typedef void (*ngx_resolver_handler_pt)(ngx_resolver_ctx_t *ctx); typedef struct { ngx_rbtree_node_t node; ngx_queue_t queue; /* PTR: resolved name, A: name to resolve */ u_char *name; u_short nlen; u_short qlen; u_char *query; union { in_addr_t addr; in_addr_t *addrs; u_char *cname; } u; u_short naddrs; u_short cnlen; time_t expire; time_t valid; ngx_resolver_ctx_t *waiting; } ngx_resolver_node_t; typedef struct { /* has to be pointer because of "incomplete type" */ ngx_event_t *event; /* TODO: DNS peers balancer */ /* STUB */ ngx_udp_connection_t *udp_connection; ngx_log_t *log; /* ident must be after 3 pointers */ ngx_int_t ident; ngx_rbtree_t name_rbtree; ngx_rbtree_node_t name_sentinel; ngx_rbtree_t addr_rbtree; ngx_rbtree_node_t addr_sentinel; ngx_queue_t name_resend_queue; ngx_queue_t addr_resend_queue; ngx_queue_t name_expire_queue; ngx_queue_t addr_expire_queue; time_t resend_timeout; time_t expire; time_t valid; ngx_uint_t log_level; } ngx_resolver_t; struct ngx_resolver_ctx_s { ngx_resolver_ctx_t *next; ngx_resolver_t *resolver; ngx_udp_connection_t *udp_connection; /* ident must be after 3 pointers */ ngx_int_t ident; ngx_int_t state; ngx_int_t type; ngx_str_t name; ngx_uint_t naddrs; in_addr_t *addrs; in_addr_t addr; /* TODO: DNS peers balancer ctx */ ngx_resolver_handler_pt handler; void *data; ngx_msec_t timeout; ngx_uint_t quick; /* unsigned quick:1; */ ngx_uint_t recursion; ngx_event_t *event; }; ngx_resolver_t *ngx_resolver_create(ngx_conf_t *cf, ngx_peer_addr_t *addr); ngx_resolver_ctx_t *ngx_resolve_start(ngx_resolver_t *r, ngx_resolver_ctx_t *temp); ngx_int_t ngx_resolve_name(ngx_resolver_ctx_t *ctx); void ngx_resolve_name_done(ngx_resolver_ctx_t *ctx); ngx_int_t ngx_resolve_addr(ngx_resolver_ctx_t *ctx); void ngx_resolve_addr_done(ngx_resolver_ctx_t *ctx); char *ngx_resolver_strerror(ngx_int_t err); #endif /* _NGX_RESOLVER_H_INCLUDED_ */