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changeset 90:37530da31268

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nginx-0.0.1-2003-05-16-19:27:48 import
author Igor Sysoev <igor@sysoev.ru>
date Fri, 16 May 2003 15:27:48 +0000
parents 29bf798b583f
children 637625a2acdb
files src/core/nginx.c src/core/ngx_conf_file.c src/core/ngx_conf_file.h src/core/ngx_modules.c src/event/modules/ngx_kqueue_module.c src/event/ngx_event.c src/event/ngx_event.h src/http/modules/ngx_http_index_handler.c src/http/ngx_http.c src/http/ngx_http_config.h src/http/ngx_http_core_module.c src/http/ngx_http_core_module.h src/http/ngx_http_header_filter.c src/http/ngx_http_output_filter.c src/http/ngx_http_write_filter.c
diffstat 15 files changed, 267 insertions(+), 38 deletions(-) [+]
line wrap: on
line diff
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -38,6 +38,7 @@ ngx_pool_t   *ngx_pool;
 
 
 int ngx_max_module;
+void *ctx_conf;
 
 int ngx_connection_counter;
 
@@ -81,8 +82,14 @@ int main(int argc, char *const *argv)
     }
 
     ngx_memzero(&conf, sizeof(ngx_conf_t));
-    ngx_test_null(conf.args,
-                  ngx_create_array(ngx_pool, 10, sizeof(ngx_str_t)), 1);
+
+    ngx_test_null(conf.args, ngx_create_array(ngx_pool, 10, sizeof(ngx_str_t)),
+                  1);
+
+    ngx_test_null(conf.ctx,
+                  ngx_pcalloc(ngx_pool, ngx_max_module * sizeof(void *)),
+                  1);
+
     conf.pool = ngx_pool;
     conf.log = &ngx_log;
     conf.module_type = NGX_CORE_MODULE_TYPE;
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -27,6 +27,8 @@ char *ngx_conf_parse(ngx_conf_t *cf, ngx
 
     if (filename) {
 
+        /* open configuration file */
+
         fd = ngx_open_file(filename->data, NGX_FILE_RDONLY);
         if (fd == NGX_INVALID_FILE) {
             ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno,
@@ -60,7 +62,8 @@ char *ngx_conf_parse(ngx_conf_t *cf, ngx
     for ( ;; ) {
         rc = ngx_conf_read_token(cf);
 
-        /* NGX_OK, NGX_ERROR, NGX_CONF_FILE_DONE, NGX_CONF_BLOCK_DONE */
+        /* ngx_conf_read_token() returns NGX_OK, NGX_ERROR,
+           NGX_CONF_FILE_DONE or NGX_CONF_BLOCK_DONE */
 
 #if 0
 ngx_log_debug(cf->log, "token %d" _ rc);
@@ -76,6 +79,8 @@ ngx_log_debug(cf->log, "token %d" _ rc);
 
         if (cf->handler) {
 
+            /* custom handler, i.e. used in http "types { ... }" directive */
+
             rv = (*cf->handler)(cf, NULL, cf->handler_conf);
             if (rv == NGX_CONF_OK) {
                 continue;
@@ -97,6 +102,9 @@ ngx_log_debug(cf->log, "token %d" _ rc);
         found = 0;
 
         for (i = 0; !found && ngx_modules[i]; i++) {
+
+            /* look up the directive in the appropriate modules */
+
             if (ngx_modules[i]->type != NGX_CONF_MODULE_TYPE
                 && ngx_modules[i]->type != cf->module_type)
             {
@@ -116,6 +124,7 @@ ngx_log_debug(cf->log, "token %d" _ rc);
 #if 0
 ngx_log_debug(cf->log, "command '%s'" _ cmd->name.data);
 #endif
+                    /* is the directive's location right ? */
 
                     if ((cmd->type & cf->cmd_type) == 0) {
                         ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
@@ -127,6 +136,8 @@ ngx_log_debug(cf->log, "command '%s'" _ 
                         return NGX_CONF_ERROR;
                     }
 
+                    /* is the directive's argument count right ? */
+
                     if (!(cmd->type & NGX_CONF_ANY)
                         && ((cmd->type & NGX_CONF_FLAG && cf->args->nelts != 2)
                             || (!(cmd->type & NGX_CONF_FLAG)
@@ -145,8 +156,14 @@ ngx_log_debug(cf->log, "command '%s'" _ 
                         return NGX_CONF_ERROR;
                     }
 
+                    /* set up the directive's configuration context */
+
                     conf = NULL;
-                    if (cf->ctx) {
+
+                    if (cf->module_type == NGX_CORE_MODULE_TYPE) {
+                        conf = &(((void **) cf->ctx)[ngx_modules[i]->index]);
+
+                    } else if (cf->ctx) {
                         pconf = *(void **) ((char *) cf->ctx + cmd->conf);
 
                         if (pconf) {
@@ -197,7 +214,7 @@ ngx_log_debug(cf->log, "rv: %d" _ rv);
         cf->conf_file = prev;
 
         if (ngx_close_file(fd) == NGX_FILE_ERROR) {
-            ngx_log_error(NGX_LOG_ERR, cf->log, ngx_errno,
+            ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
                           ngx_close_file_n " %s failed",
                           cf->conf_file->file.name.data);
             return NGX_CONF_ERROR;
@@ -450,6 +467,26 @@ char *ngx_conf_set_str_slot(ngx_conf_t *
 }
 
 
+char *ngx_conf_set_num_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf)
+{
+    int         num, len;
+    ngx_str_t  *value;
+
+    value = (ngx_str_t *) cf->args->elts;
+
+    len = value[1].len;
+
+    num = ngx_atoi(value[1].data, len);
+    if (num == NGX_ERROR) {
+        return "invalid value";
+    }
+
+    *(int *) (conf + cmd->offset) = num;
+
+    return NGX_CONF_OK;
+}
+
+
 char *ngx_conf_set_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf)
 {
     int         size, len, scale;
--- a/src/core/ngx_conf_file.h
+++ b/src/core/ngx_conf_file.h
@@ -17,18 +17,17 @@
  *        AAAA  number of agruments
  *      FF      command flags
  *    TT        command type, i.e. HTTP "location" or "server" command
- *  00
  */
 
-#define NGX_CONF_NOARGS      0x0000000001
-#define NGX_CONF_TAKE1       0x0000000002
-#define NGX_CONF_TAKE2       0x0000000004
-#define NGX_CONF_ARGS_NUMBER 0x000000ffff
-#define NGX_CONF_ANY         0x0000010000
-#define NGX_CONF_BLOCK       0x0000020000
-#define NGX_CONF_FLAG        0x0000040000
+#define NGX_CONF_NOARGS      0x00000001
+#define NGX_CONF_TAKE1       0x00000002
+#define NGX_CONF_TAKE2       0x00000004
+#define NGX_CONF_ARGS_NUMBER 0x0000ffff
+#define NGX_CONF_ANY         0x00010000
+#define NGX_CONF_BLOCK       0x00020000
+#define NGX_CONF_FLAG        0x00040000
 
-#define NGX_MAIN_CONF        0x0001000000
+#define NGX_MAIN_CONF        0x01000000
 
 
 
@@ -61,8 +60,8 @@ struct ngx_command_s {
 
 
 typedef struct {
+    void           *ctx;
     int             index;
-    void           *ctx;
     ngx_command_t  *commands;
     int             type;
     int           (*init_module)(ngx_pool_t *p);
@@ -121,6 +120,7 @@ char *ngx_conf_parse(ngx_conf_t *cf, ngx
 
 char *ngx_conf_set_flag_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
 char *ngx_conf_set_str_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
+char *ngx_conf_set_num_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
 char *ngx_conf_set_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
 char *ngx_conf_set_msec_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
 char *ngx_conf_set_time_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf);
--- a/src/core/ngx_modules.c
+++ b/src/core/ngx_modules.c
@@ -4,6 +4,10 @@
 #include <ngx_conf_file.h>
 
 
+extern ngx_module_t  ngx_events_module;
+extern ngx_module_t  ngx_event_module;
+
+
 extern ngx_module_t  ngx_http_module;
 extern ngx_module_t  ngx_http_core_module;
 
@@ -17,6 +21,13 @@ extern ngx_module_t  ngx_http_proxy_modu
 
 ngx_module_t *ngx_modules[] = {
 
+    /* events */
+
+    &ngx_events_module,
+    &ngx_event_module,
+
+    /* http */
+
     &ngx_http_module,
 
     &ngx_http_core_module,
--- a/src/event/modules/ngx_kqueue_module.c
+++ b/src/event/modules/ngx_kqueue_module.c
@@ -10,6 +10,7 @@
 #include <ngx_connection.h>
 #include <ngx_event.h>
 #include <ngx_event_timer.h>
+#include <ngx_conf_file.h>
 #include <ngx_kqueue_module.h>
 
 
@@ -18,6 +19,10 @@
 #define KQUEUE_NEVENTS   512
 
 
+static int  ngx_kqueue_changes;
+static int  ngx_kqueue_events;
+
+
 /* should be per-thread if threads are used without thread pool */
 #if 1
 int                     kq;
@@ -32,6 +37,37 @@ static ngx_event_t     *timer_queue;
 /* */
 
 
+static ngx_str_t  kqueue_name = ngx_string("kqueue");
+
+static ngx_command_t  ngx_kqueue_commands[] = {
+
+    {ngx_string("kqueue_changes"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_conf_set_num_slot,
+     0,
+     addressof(ngx_kqueue_changes),
+     NULL},
+
+    {ngx_string("kqueue_events"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_conf_set_num_slot,
+     0,
+     addressof(ngx_kqueue_events),
+     NULL},
+
+    {ngx_string(""), 0, NULL, 0, 0, NULL}
+};
+
+ngx_module_t  ngx_kqueue_module = {
+    &kqueue_name,                          /* module context */
+    0,                                     /* module index */
+    ngx_kqueue_commands,                   /* module directives */
+    NGX_EVENT_MODULE_TYPE,                 /* module type */
+    NULL                                   /* init module */
+};
+
+
+
 int ngx_kqueue_init(int max_connections, ngx_log_t *log)
 {
     int  change_size, event_size;
--- a/src/event/ngx_event.c
+++ b/src/event/ngx_event.c
@@ -9,6 +9,7 @@
 #include <ngx_listen.h>
 #include <ngx_connection.h>
 #include <ngx_event.h>
+#include <ngx_conf_file.h>
 
 #include <ngx_select_module.h>
 
@@ -34,6 +35,9 @@
 #endif
 
 
+static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy);
+
+
 ngx_connection_t    *ngx_connections;
 ngx_event_t         *ngx_read_events, *ngx_write_events;
 
@@ -68,6 +72,66 @@ static int (*ngx_event_init[]) (int max_
 #endif /* USE_KQUEUE */
 
 
+static int  ngx_event_connections;
+
+
+static ngx_str_t  events_name = ngx_string("events");
+
+static ngx_command_t  ngx_events_commands[] = {
+
+    {ngx_string("events"),
+     NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
+     ngx_events_block,
+     0,
+     0,
+     NULL},
+
+    {ngx_string(""), 0, NULL, 0, 0, NULL}
+};
+
+
+ngx_module_t  ngx_events_module = {
+    &events_name,                          /* module context */
+    0,                                     /* module index */
+    ngx_events_commands,                   /* module directives */
+    NGX_CORE_MODULE_TYPE,                  /* module type */
+    NULL                                   /* init module */
+};
+
+
+
+static ngx_command_t  ngx_event_commands[] = {
+
+    {ngx_string("connections"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_conf_set_num_slot,
+     0,
+     addressof(ngx_event_connections),
+     NULL},
+
+#if 0
+    {ngx_string("type"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_event_set_type,
+     0,
+     0,
+     NULL},
+#endif
+
+    {ngx_string(""), 0, NULL, 0, 0, NULL}
+};
+
+
+ngx_module_t  ngx_event_module = {
+    NULL,                                  /* module context */
+    0,                                     /* module index */
+    ngx_events_commands,                   /* module directives */
+    NGX_EVENT_MODULE_TYPE,                 /* module type */
+    NULL                                   /* init module */
+};
+
+
+
 void ngx_pre_thread(ngx_array_t *ls, ngx_pool_t *pool, ngx_log_t *log)
 {
     int  i, fd;
@@ -173,6 +237,7 @@ void ngx_pre_thread(ngx_array_t *ls, ngx
     }
 }
 
+
 void ngx_worker(ngx_log_t *log)
 {
     for ( ;; ) {
@@ -181,3 +246,44 @@ void ngx_worker(ngx_log_t *log)
         ngx_process_events(log);
     }
 }
+
+
+static char *ngx_events_init(ngx_pool_t *pool)
+{
+    ngx_event_connections = -1;
+    ngx_event_type = -1;
+
+    return NGX_CONF_OK;
+}
+
+
+static char *ngx_events_postconf(ngx_pool_t *pool)
+{
+    if (ngx_event_connections == -1) {
+        ngx_event_connections = 512;
+    }
+
+    return NGX_CONF_OK;
+}
+
+
+static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, char *conf)
+{
+    char        *rv;
+    ngx_conf_t   pcf;
+
+#if 0
+    *(ngx_events_conf_ctx_t **) conf = ctx;
+#endif
+
+    pcf = *cf;
+    cf->module_type = NGX_EVENT_MODULE_TYPE;
+    cf->cmd_type = NGX_EVENT_CONF;
+    rv = ngx_conf_parse(cf, NULL);
+    *cf = pcf;
+
+    if (rv != NGX_CONF_OK)
+        return rv;
+
+    return NGX_CONF_OK;
+}
--- a/src/event/ngx_event.h
+++ b/src/event/ngx_event.h
@@ -298,6 +298,12 @@ extern int                   ngx_event_f
 #endif
 
 
+#define NGX_EVENT_MODULE_TYPE 0x544E5645  /* "EVNT" */
+
+#define NGX_EVENT_CONF        0x00200000
+
+
+
 void ngx_event_accept(ngx_event_t *ev);
 
 
--- a/src/http/modules/ngx_http_index_handler.c
+++ b/src/http/modules/ngx_http_index_handler.c
@@ -47,8 +47,8 @@ ngx_http_module_t  ngx_http_index_module
 
 
 ngx_module_t  ngx_http_index_module = {
+    &ngx_http_index_module_ctx,            /* module context */
     0,                                     /* module index */
-    &ngx_http_index_module_ctx,            /* module context */
     ngx_http_index_commands,               /* module directives */
     NGX_HTTP_MODULE_TYPE,                  /* module type */
     ngx_http_index_init                    /* init module */
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -53,15 +53,15 @@ static ngx_command_t  ngx_http_commands[
 
 
 ngx_module_t  ngx_http_module = {
+    &http_name,                            /* module context */
     0,                                     /* module index */
-    &http_name,                            /* module context */
     ngx_http_commands,                     /* module directives */
     NGX_CORE_MODULE_TYPE,                  /* module type */
     NULL                                   /* init module */
 };
 
 
-static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy)
+static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, char *conf)
 {
     int                         i, s, l, p, a, n, start;
     int                         port_found, addr_found, virtual_names;
@@ -70,7 +70,7 @@ static char *ngx_http_block(ngx_conf_t *
     ngx_array_t                 in_ports;
     ngx_listen_t               *ls;
     ngx_http_module_t          *module;
-    ngx_conf_t                  prev;
+    ngx_conf_t                  pcf;
     ngx_http_conf_ctx_t        *ctx;
     ngx_http_in_port_t         *in_port, *inport;
     ngx_http_in_addr_t         *in_addr, *inaddr;
@@ -85,6 +85,8 @@ static char *ngx_http_block(ngx_conf_t *
                   ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)),
                   NGX_CONF_ERROR);
 
+    *(ngx_http_conf_ctx_t **) conf = ctx;
+
     ngx_http_max_module = 0;
     for (i = 0; ngx_modules[i]; i++) {
         if (ngx_modules[i]->type != NGX_HTTP_MODULE_TYPE) {
@@ -96,7 +98,20 @@ static char *ngx_http_block(ngx_conf_t *
         module->index = ngx_http_max_module++;
     }
 
-    /* null loc_conf */
+    /* TODO: http main_conf */
+
+    ngx_test_null(ctx->main_conf,
+                  ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
+                  NGX_CONF_ERROR);
+
+    /* TODO: http srv_conf */
+
+    ngx_test_null(ctx->srv_conf,
+                  ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
+                  NGX_CONF_ERROR);
+
+    /* http null loc_conf */
+
     ngx_test_null(ctx->loc_conf,
                   ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
                   NGX_CONF_ERROR);
@@ -115,12 +130,12 @@ static char *ngx_http_block(ngx_conf_t *
         }
     }
 
-    prev = *cf;
+    pcf = *cf;
     cf->ctx = ctx;
     cf->module_type = NGX_HTTP_MODULE_TYPE;
     cf->cmd_type = NGX_HTTP_MAIN_CONF;
     rv = ngx_conf_parse(cf, NULL);
-    *cf = prev;
+    *cf = pcf;
 
     if (rv != NGX_CONF_OK)
         return rv;
--- a/src/http/ngx_http_config.h
+++ b/src/http/ngx_http_config.h
@@ -7,6 +7,7 @@
 
 
 typedef struct {
+    void        **main_conf;
     void        **srv_conf;
     void        **loc_conf;
 } ngx_http_conf_ctx_t;
@@ -38,20 +39,19 @@ typedef struct {
 #define NGX_HTTP_LOC_CONF         0x8000000
 
 
-#define NGX_HTTP_SRV_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, srv_conf)
-#define NGX_HTTP_LOC_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, loc_conf)
+#define NGX_HTTP_MAIN_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, main_conf)
+#define NGX_HTTP_SRV_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, srv_conf)
+#define NGX_HTTP_LOC_CONF_OFFSET   offsetof(ngx_http_conf_ctx_t, loc_conf)
 
 
-#define ngx_http_get_module_srv_conf(r, module)  r->srv_conf[module.index]
-#define ngx_http_get_module_loc_conf(r, module)  r->loc_conf[module.index]
+#define ngx_http_get_module_main_conf(r, ctx)  r->main_conf[ctx.index]
+#define ngx_http_get_module_srv_conf(r, ctx)   r->srv_conf[ctx.index]
+#define ngx_http_get_module_loc_conf(r, ctx)   r->loc_conf[ctx.index]
 
 
 int ngx_http_config_modules(ngx_pool_t *pool, ngx_module_t **modules);
 
 
-extern ngx_module_t  ngx_http_module;
-
-
 extern int (*ngx_http_top_header_filter) (ngx_http_request_t *r);
 
 
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -74,8 +74,8 @@ static ngx_command_t  ngx_http_core_comm
     {ngx_string("client_header_buffer_size"),
      NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
      ngx_conf_set_size_slot,
-     0,
-     addressof(ngx_http_client_header_buffer_size),
+     NGX_HTTP_MAIN_CONF_OFFSET,
+     offsetof(ngx_http_core_main_conf_t, client_header_buffer_size),
      NULL},
 
     {ngx_string("large_client_header"),
@@ -157,8 +157,8 @@ ngx_http_module_t  ngx_http_core_module_
 
 
 ngx_module_t  ngx_http_core_module = {
+    &ngx_http_core_module_ctx,             /* module context */
     0,                                     /* module index */
-    &ngx_http_core_module_ctx,             /* module context */
     ngx_http_core_commands,                /* module directives */
     NGX_HTTP_MODULE_TYPE,                  /* module type */
     ngx_http_core_init                     /* init module */
@@ -615,7 +615,7 @@ static char *ngx_server_block(ngx_conf_t
     char                       *rv;
     ngx_http_module_t          *module;
     ngx_conf_t                  pcf;
-    ngx_http_conf_ctx_t        *ctx, *pctx;
+    ngx_http_conf_ctx_t        *ctx, *tctx, *pctx;
     ngx_http_core_srv_conf_t   *scf;
     ngx_http_core_loc_conf_t  **plcf;
 
@@ -623,12 +623,17 @@ static char *ngx_server_block(ngx_conf_t
                   ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)),
                   NGX_CONF_ERROR);
 
-    /* server config */
+    tctx = (ngx_http_conf_ctx_t *) cf->ctx;
+    ctx->main_conf = tctx->main_conf;
+
+    /* server configuration */
+
     ngx_test_null(ctx->srv_conf,
                   ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
                   NGX_CONF_ERROR);
 
-    /* server location config */
+    /* server location configuration */
+
     ngx_test_null(ctx->loc_conf,
                   ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
                   NGX_CONF_ERROR);
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -18,6 +18,12 @@ typedef struct {
 
 
 typedef struct {
+    int          request_pool_size;
+    int          client_header_buffer_size;
+} ngx_http_core_main_conf_t;
+
+
+typedef struct {
     ngx_array_t  locations;    /* array of ngx_http_core_loc_conf_t */
 
     ngx_array_t  listen;       /* 'listen', array of ngx_http_listen_t */
--- a/src/http/ngx_http_header_filter.c
+++ b/src/http/ngx_http_header_filter.c
@@ -30,8 +30,8 @@ ngx_http_module_t  ngx_http_header_filte
 
 
 ngx_module_t  ngx_http_header_filter_module = {
+    &ngx_http_header_filter_module_ctx,    /* module context */
     0,                                     /* module index */
-    &ngx_http_header_filter_module_ctx,    /* module context */
     NULL,                                  /* module directives */
     NGX_HTTP_MODULE_TYPE,                  /* module type */
     ngx_http_header_filter_init            /* init module */
--- a/src/http/ngx_http_output_filter.c
+++ b/src/http/ngx_http_output_filter.c
@@ -45,8 +45,8 @@ static ngx_http_module_t  ngx_http_outpu
 
 
 ngx_module_t  ngx_http_output_filter_module = {
+    &ngx_http_output_filter_module_ctx,    /* module context */
     0,                                     /* module index */
-    &ngx_http_output_filter_module_ctx,    /* module context */
     ngx_http_output_filter_commands,       /* module directives */
     NGX_HTTP_MODULE_TYPE,                  /* module type */
     NULL                                   /* init module */
--- a/src/http/ngx_http_write_filter.c
+++ b/src/http/ngx_http_write_filter.c
@@ -44,8 +44,8 @@ ngx_http_module_t  ngx_http_write_filter
 
 
 ngx_module_t  ngx_http_write_filter_module = {
+    &ngx_http_write_filter_module_ctx,     /* module context */
     0,                                     /* module index */
-    &ngx_http_write_filter_module_ctx,     /* module context */
     ngx_http_write_filter_commands,        /* module directives */
     NGX_HTTP_MODULE_TYPE,                  /* module type */
     ngx_http_write_filter_init             /* init module */