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NginxÄ £¿éµÄ½á¹¹
Ò»¸ö±ê×¼µÄNginxÄ £¿éÊÇÒ»¸ö¶¯Ì¬Á´½Ó¿â £¬Ëü°üÀ¨ÁËһϵÁеĻص÷º¯Êý £¬ÕâЩ»Øµ÷º¯Êý»áÔÚNginxÔËÐÐÀú³ÌÖеÄÏìӦʱ»ú±»Å²Óà ¡£Ò»¸öNginxÄ £¿éµÄ½á¹¹Ê¾ÀýÈçÏ£º
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
static ngx_int_t ngx_http_example_handler(ngx_http_request_t *r);
static ngx_http_module_t ngx_http_example_module_ctx = {
NULL, /* preconfiguration */
NULL, /* postconfiguration */
NULL, /* create main configuration */
NULL, /* init main configuration */
NULL, /* create server configuration */
NULL, /* merge server configuration */
NULL, /* create location configuration */
NULL /* merge location configuration */
};
ngx_module_t ngx_http_example_module = {
NGX_MODULE_V1,
&ngx_http_example_module_ctx, /* module context */
NULL, /* module directives */
NGX_HTTP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
NULL, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
static ngx_command_t ngx_http_example_commands[] = {
{ ngx_string("example"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS,
ngx_http_example_command,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
ngx_null_command
};
static ngx_http_module_t ngx_http_example_module_ctx = {
NULL, /* preconfiguration */
NULL, /* postconfiguration */
NULL, /* create main configuration */
NULL, /* init main configuration */
NULL, /* create server configuration */
NULL, /* merge server configuration */
NULL, /* create location configuration */
NULL /* merge location configuration */
};
ngx_module_t ngx_http_example_module = {
NGX_MODULE_V1,
&ngx_http_example_module_ctx, /* module context */
ngx_http_example_commands, /* module directives */
NGX_HTTP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
NULL, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
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NginxÄ £¿éµÄ½¹µã»Øµ÷º¯Êý
NginxÄ £¿éµÄ½¹µã»Øµ÷º¯Êýͨ¹ýngx_http_module_t½á¹¹ÖеÄÖ¸ÕëÖ¸ÏòÏìÓ¦µÄº¯Êý ¡£ÒÔÏÂÊÇһЩ³£ÓõĽ¹µã»Øµ÷º¯ÊýºÍʾÀý´úÂ룺
static ngx_int_t ngx_http_example_handler(ngx_http_request_t *r)
{
ngx_int_t rc;
ngx_buf_t *b;
ngx_chain_t out;
/* ½¨ÉèÒ»¸öÊä³ö»º³åÇø */
b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
if (b == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
out.buf = b;
out.next = NULL;
/* ÉèÖÃÊä³ö»º³åÇøµÄÄÚÈÝ */
b->pos = (u_char *) "Hello, Nginx!";
b->last = b->pos + sizeof("Hello, Nginx!") - 1;
b->memory = 1;
b->last_buf = 1;
/* ÉèÖÃÏìӦͷ²¿ */
r->headers_out.status = NGX_HTTP_OK;
r->headers_out.content_length_n = sizeof("Hello, Nginx!") - 1;
rc = ngx_http_send_header(r);
/* ·¢ËÍÏìÓ¦ÄÚÈÝ */
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
return ngx_http_output_filter(r, &out);
}
static ngx_int_t ngx_http_example_init(ngx_conf_t *cf)
{
/* »ñÈ¡httpÄ £¿éµÄngx_http_core_moduleÉÏÏÂÎÄ */
ngx_http_core_main_conf_t *cmcf;
cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
/* ÔÚngx_http_core_moduleµÄ´¦ÀíÇëÇóµÄ»Øµ÷º¯ÊýÊý×éhandlersÖмÓÈë×Ô½ç˵»Øµ÷º¯Êý */
ngx_http_handler_pt *h;
h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
if (h == NULL) {
return NGX_ERROR;
}
*h = ngx_http_example_handler;
return NGX_OK;
}
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NginxÄ £¿éµÄ±àÒëºÍ¼ÓÔØ
±àÒëNginxÄ £¿éµÄʱ¼ä £¬ÐèÒªÔÚconfigureÏÂÁîÖмÓÈë–add-module=/path/to/module/directory²ÎÊý £¬½«Ä £¿éµÄÔ´ÂëĿ¼ת´ï¸øconfigure¾ç±¾ ¡£È»ºóʹÓÃmakeÏÂÁî±àÒëNginx ¡£
¼ÓÔØNginxÄ £¿é £¬¿ÉÒÔÔÚNginxµÄÉèÖÃÎļþÖÐʹÓÃload_moduleÖ¸Áî £¬Ö¸¶¨Ä £¿éµÄ·¾¶ ¡£ÀýÈ磺
load_module /path/to/module.so;
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