# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1351531079 0
# Node ID e89bd9896fea8b060648c2ce3e2eec970b9e2e85
# Parent  063ac68d89dca857adb66bfe918fd8329d7dd7dc
Variables $connection and $connection_requests.

Log module counterparts are removed as they aren't used often and
there is no need to preserve them for efficiency.

diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -78,10 +78,6 @@ static void ngx_http_log_write(ngx_http_
 static ssize_t ngx_http_log_script_write(ngx_http_request_t *r,
     ngx_http_log_script_t *script, u_char **name, u_char *buf, size_t len);
 
-static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
-    ngx_http_log_op_t *op);
-static u_char *ngx_http_log_connection_requests(ngx_http_request_t *r,
-    u_char *buf, ngx_http_log_op_t *op);
 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf,
     ngx_http_log_op_t *op);
 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf,
@@ -194,9 +190,6 @@ static ngx_str_t  ngx_http_combined_fmt 
 
 
 static ngx_http_log_var_t  ngx_http_log_vars[] = {
-    { ngx_string("connection"), NGX_ATOMIC_T_LEN, ngx_http_log_connection },
-    { ngx_string("connection_requests"), NGX_INT_T_LEN,
-                          ngx_http_log_connection_requests },
     { ngx_string("pipe"), 1, ngx_http_log_pipe },
     { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
                           ngx_http_log_time },
@@ -500,22 +493,6 @@ ngx_http_log_copy_long(ngx_http_request_
 
 
 static u_char *
-ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
-    ngx_http_log_op_t *op)
-{
-    return ngx_sprintf(buf, "%uA", r->connection->number);
-}
-
-
-static u_char *
-ngx_http_log_connection_requests(ngx_http_request_t *r, u_char *buf,
-    ngx_http_log_op_t *op)
-{
-    return ngx_sprintf(buf, "%ui", r->connection->requests);
-}
-
-
-static u_char *
 ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op)
 {
     if (r->pipeline) {
diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -97,6 +97,11 @@ static ngx_int_t ngx_http_variable_sent_
 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
 
+static ngx_int_t ngx_http_variable_connection(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data);
+static ngx_int_t ngx_http_variable_connection_requests(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data);
+
 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data);
 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r,
@@ -265,6 +270,12 @@ static ngx_http_variable_t  ngx_http_cor
       offsetof(ngx_http_request_t, limit_rate),
       NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
 
+    { ngx_string("connection"), NULL,
+      ngx_http_variable_connection, 0, 0, 0 },
+
+    { ngx_string("connection_requests"), NULL,
+      ngx_http_variable_connection_requests, 0, 0, 0 },
+
     { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version,
       0, 0, 0 },
 
@@ -1814,6 +1825,48 @@ ngx_http_variable_request_body_file(ngx_
 
 
 static ngx_int_t
+ngx_http_variable_connection(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data)
+{
+    u_char  *p;
+
+    p = ngx_pnalloc(r->pool, NGX_ATOMIC_T_LEN);
+    if (p == NULL) {
+        return NGX_ERROR;
+    }
+
+    v->len = ngx_sprintf(p, "%uA", r->connection->number) - p;
+    v->valid = 1;
+    v->no_cacheable = 0;
+    v->not_found = 0;
+    v->data = p;
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_variable_connection_requests(ngx_http_request_t *r,
+    ngx_http_variable_value_t *v, uintptr_t data)
+{
+    u_char  *p;
+
+    p = ngx_pnalloc(r->pool, NGX_INT_T_LEN);
+    if (p == NULL) {
+        return NGX_ERROR;
+    }
+
+    v->len = ngx_sprintf(p, "%ui", r->connection->requests) - p;
+    v->valid = 1;
+    v->no_cacheable = 0;
+    v->not_found = 0;
+    v->data = p;
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
 ngx_http_variable_nginx_version(ngx_http_request_t *r,
     ngx_http_variable_value_t *v, uintptr_t data)
 {