Changeset 10013

Timestamp:

Jan 25, 2010, 4:24:48 AM (12 years ago)

Author:

charles

Message:

(trunk libT) extend the lifespan of the cached DNS entries

File:

• trunk/libtransmission/web.c (modified) (5 diffs)

trunk/libtransmission/web.c

@@ -31 +31 @@
 
     DEFAULT_TIMER_MSEC = 1500 /* arbitrary */
+
+    MIN_DNS_CACHE_TIME = 60 * 60 * 24
 };
 
@@ -160 +162 @@
 
     if( item != NULL )
-        dbgmsg( "found cached dns entry for \"%s\": %s", host, item->resolved_host );
+        dbgmsg( "found cached dns entry for \"%s\": %s",
+                host, item->resolved_host );
 
     return item ? item->resolved_host : NULL;
@@ -166 +169 @@
 
 static const char*
-dns_set_cached_host( struct tr_web_task * task, const char * host, const char * resolved, int ttl )
+dns_set_cached_host( struct tr_web_task * task, const char * host,
+                     const char * resolved, int ttl )
 {
     char * ret = NULL;
@@ -175 +179 @@
     assert( resolved != NULL );
     assert( ttl >= 0 );
+
+    ttl = MAX( MIN_DNS_CACHE_TIME, ttl );
 
     g = task->session->web;
@@ -315 +321 @@
         curl_easy_setopt( e, CURLOPT_WRITEDATA, task );
         curl_easy_setopt( e, CURLOPT_WRITEFUNCTION, writeFunc );
-        curl_easy_setopt( e, CURLOPT_DNS_CACHE_TIMEOUT, 1800L );
+        curl_easy_setopt( e, CURLOPT_DNS_CACHE_TIMEOUT, MIN_DNS_CACHE_TIME );
         curl_easy_setopt( e, CURLOPT_FOLLOWLOCATION, 1L );
         curl_easy_setopt( e, CURLOPT_AUTOREFERER, 1L );