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ngx_http_lua_conf.c
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ngx_http_lua_conf.c
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/* vim:set ft=c ts=4 sw=4 et fdm=marker: */
#include <nginx.h>
#include "ngx_http_lua_conf.h"
#include "ngx_http_lua_util.h"
static void ngx_http_lua_cleanup_vm(void *data);
static char * ngx_http_lua_init_vm(ngx_conf_t *cf,
ngx_http_lua_main_conf_t *lmcf);
void *
ngx_http_lua_create_main_conf(ngx_conf_t *cf)
{
ngx_http_lua_main_conf_t *lmcf;
lmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_lua_main_conf_t));
if (lmcf == NULL) {
return NULL;
}
/* set by ngx_pcalloc:
* lmcf->lua = NULL;
* lmcf->lua_path = { 0, NULL };
* lmcf->lua_cpath = { 0, NULL };
* lmcf->regex_cache_entries = 0;
* lmcf->shm_zones = NULL;
*/
lmcf->pool = cf->pool;
lmcf->regex_cache_max_entries = NGX_CONF_UNSET;
dd("nginx Lua module main config structure initialized!");
return lmcf;
}
char *
ngx_http_lua_init_main_conf(ngx_conf_t *cf, void *conf)
{
ngx_http_lua_main_conf_t *lmcf = conf;
if (lmcf->regex_cache_max_entries == NGX_CONF_UNSET) {
lmcf->regex_cache_max_entries = 1024;
}
if (lmcf->lua == NULL) {
if (ngx_http_lua_init_vm(cf, lmcf) != NGX_CONF_OK) {
ngx_conf_log_error(NGX_ERROR, cf, 0, "Failed to initialize Lua VM");
return NGX_CONF_ERROR;
}
dd("Lua VM initialized!");
}
return NGX_CONF_OK;
}
void *
ngx_http_lua_create_loc_conf(ngx_conf_t *cf)
{
ngx_http_lua_loc_conf_t *conf;
conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_lua_loc_conf_t));
if (conf == NULL) {
return NGX_CONF_ERROR;
}
/* set by ngx_pcalloc:
* conf->access_src = {{ 0, NULL }, NULL, NULL, NULL};
* conf->access_src_key = NULL
* conf->rewrite_src = {{ 0, NULL }, NULL, NULL, NULL};
* conf->rewrite_src_key = NULL
* conf->rewrite_handler = NULL;
*
* conf->content_src = {{ 0, NULL }, NULL, NULL, NULL};
* conf->content_src_key = NULL
* conf->content_handler = NULL;
*
* conf->header_filter_src = {{ 0, NULL }, NULL, NULL, NULL};
* conf->header_filter_src_key = NULL
* conf->header_filter_handler = NULL;
*/
conf->force_read_body = NGX_CONF_UNSET;
conf->enable_code_cache = NGX_CONF_UNSET;
conf->tag = (ngx_buf_tag_t) &ngx_http_lua_module;
conf->keepalive_timeout = NGX_CONF_UNSET_MSEC;
conf->connect_timeout = NGX_CONF_UNSET_MSEC;
conf->send_timeout = NGX_CONF_UNSET_MSEC;
conf->read_timeout = NGX_CONF_UNSET_MSEC;
conf->send_lowat = NGX_CONF_UNSET_SIZE;
conf->buffer_size = NGX_CONF_UNSET_SIZE;
conf->pool_size = NGX_CONF_UNSET_UINT;
return conf;
}
char *
ngx_http_lua_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
{
ngx_http_lua_loc_conf_t *prev = parent;
ngx_http_lua_loc_conf_t *conf = child;
if (conf->rewrite_src.value.len == 0) {
conf->rewrite_src = prev->rewrite_src;
conf->rewrite_handler = prev->rewrite_handler;
conf->rewrite_src_key = prev->rewrite_src_key;
}
if (conf->access_src.value.len == 0) {
conf->access_src = prev->access_src;
conf->access_handler = prev->access_handler;
conf->access_src_key = prev->access_src_key;
}
if (conf->content_src.value.len == 0) {
conf->content_src = prev->content_src;
conf->content_handler = prev->content_handler;
conf->content_src_key = prev->content_src_key;
}
if (conf->header_filter_src.value.len == 0) {
conf->header_filter_src = prev->header_filter_src;
conf->header_filter_handler = prev->header_filter_handler;
conf->header_filter_src_key = prev->header_filter_src_key;
}
ngx_conf_merge_value(conf->force_read_body, prev->force_read_body, 0);
ngx_conf_merge_value(conf->enable_code_cache, prev->enable_code_cache, 1);
ngx_conf_merge_msec_value(conf->keepalive_timeout,
prev->keepalive_timeout, 60000);
ngx_conf_merge_msec_value(conf->connect_timeout,
prev->connect_timeout, 60000);
ngx_conf_merge_msec_value(conf->send_timeout,
prev->send_timeout, 60000);
ngx_conf_merge_msec_value(conf->read_timeout,
prev->read_timeout, 60000);
ngx_conf_merge_size_value(conf->send_lowat,
prev->send_lowat, 0);
ngx_conf_merge_size_value(conf->buffer_size,
prev->buffer_size,
(size_t) ngx_pagesize);
ngx_conf_merge_uint_value(conf->pool_size, prev->pool_size, 30);
return NGX_CONF_OK;
}
static void
ngx_http_lua_cleanup_vm(void *data)
{
lua_State *L = data;
if (L != NULL) {
lua_close(L);
dd("Lua VM closed!");
}
}
static char *
ngx_http_lua_init_vm(ngx_conf_t *cf, ngx_http_lua_main_conf_t *lmcf)
{
ngx_pool_cleanup_t *cln;
/* add new cleanup handler to config mem pool */
cln = ngx_pool_cleanup_add(cf->pool, 0);
if (cln == NULL) {
return NGX_CONF_ERROR;
}
/* create new Lua VM instance */
lmcf->lua = ngx_http_lua_new_state(cf, lmcf);
if (lmcf->lua == NULL) {
return NGX_CONF_ERROR;
}
/* register cleanup handler for Lua VM */
cln->handler = ngx_http_lua_cleanup_vm;
cln->data = lmcf->lua;
return NGX_CONF_OK;
}