From 5ca8d4181666885f732944eb8a27ad63daf443ee Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles@transmissionbt.com>
Date: Wed, 19 May 2010 19:02:25 +0000
Subject: [PATCH] (trunk libT) #2929 "persistent tracker error messages in main
 window" -- experimental fix

---
 libtransmission/announcer.c |  3 ++-
 libtransmission/announcer.h |  3 ++-
 libtransmission/torrent.c   | 37 +++++++++++++++++++++++++++++++------
 libtransmission/torrent.h   |  1 +
 4 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/libtransmission/announcer.c b/libtransmission/announcer.c
index 924923813..bf239583d 100644
--- a/libtransmission/announcer.c
+++ b/libtransmission/announcer.c
@@ -581,7 +581,7 @@ getTier( tr_announcer * announcer, int torrentId, int tierId )
 ****  PUBLISH
 ***/
 
-static const tr_tracker_event emptyEvent = { 0, NULL, NULL, 0, 0 };
+static const tr_tracker_event emptyEvent = { 0, NULL, NULL, NULL, 0, 0 };
 
 static void
 publishMessage( tr_tier * tier, const char * msg, int type )
@@ -592,6 +592,7 @@ publishMessage( tr_tier * tier, const char * msg, int type )
         tr_tracker_event event = emptyEvent;
         event.messageType = type;
         event.text = msg;
+        event.tracker = tier->currentTracker ? tier->currentTracker->announce : NULL;
         tr_publisherPublish( &tiers->publisher, tier, &event );
     }
 }
diff --git a/libtransmission/announcer.h b/libtransmission/announcer.h
index 15c510223..488940f36 100644
--- a/libtransmission/announcer.h
+++ b/libtransmission/announcer.h
@@ -43,7 +43,8 @@ typedef struct
     TrackerEventType    messageType;
 
     /* for TR_TRACKER_WARNING and TR_TRACKER_ERROR */
-    const char *  text;
+    const char * text;
+    const char * tracker;
 
     /* for TR_TRACKER_PEERS */
     const uint8_t *  compact;
diff --git a/libtransmission/torrent.c b/libtransmission/torrent.c
index 00b28bd93..89b8355e2 100644
--- a/libtransmission/torrent.c
+++ b/libtransmission/torrent.c
@@ -347,10 +347,21 @@ tr_torrentSetLocalError( tr_torrent * tor, const char * fmt, ... )
 
     va_start( ap, fmt );
     tor->error = TR_STAT_LOCAL_ERROR;
+    tor->errorTracker[0] = '\0';
     evutil_vsnprintf( tor->errorString, sizeof( tor->errorString ), fmt, ap );
     va_end( ap );
 }
 
+static void
+tr_torrentClearError( tr_torrent * tor )
+{
+    assert( tr_isTorrent( tor ) );
+
+    tor->error = TR_STAT_OK;
+    tor->errorString[0] = '\0';
+    tor->errorTracker[0] = '\0';
+}
+
 static void
 onTrackerResponse( void * tracker UNUSED,
                    void * vevent,
@@ -386,21 +397,20 @@ onTrackerResponse( void * tracker UNUSED,
         case TR_TRACKER_WARNING:
             tr_torerr( tor, _( "Tracker warning: \"%s\"" ), event->text );
             tor->error = TR_STAT_TRACKER_WARNING;
+            tr_strlcpy( tor->errorTracker, event->tracker, sizeof( tor->errorTracker ) );
             tr_strlcpy( tor->errorString, event->text, sizeof( tor->errorString ) );
             break;
 
         case TR_TRACKER_ERROR:
             tr_torerr( tor, _( "Tracker error: \"%s\"" ), event->text );
             tor->error = TR_STAT_TRACKER_ERROR;
+            tr_strlcpy( tor->errorTracker, event->tracker, sizeof( tor->errorTracker ) );
             tr_strlcpy( tor->errorString, event->text, sizeof( tor->errorString ) );
             break;
 
         case TR_TRACKER_ERROR_CLEAR:
             if( tor->error != TR_STAT_LOCAL_ERROR )
-            {
-                tor->error = TR_STAT_OK;
-                tor->errorString[0] = '\0';
-            }
+                tr_torrentClearError( tor );
             break;
     }
 }
@@ -1363,10 +1373,9 @@ checkAndStartImpl( void * vtor )
     {
         const time_t now = tr_time( );
         tor->isRunning = TRUE;
-        tor->error = TR_STAT_OK;
-        tor->errorString[0] = '\0';
         tor->completeness = tr_cpGetStatus( &tor->completion );
         tor->startDate = tor->anyDate = now;
+        tr_torrentClearError( tor );
 
         tr_torrentResetTransferStats( tor );
         tr_announcerTorrentStarted( tor );
@@ -2210,6 +2219,22 @@ tr_torrentSetAnnounceList( tr_torrent             * tor,
         /* cleanup */
         tr_bencFree( &metainfo );
 
+        /* if we had a tracker-related error on this torrent,
+         * and that tracker's been removed,
+         * then clear the error */
+        if(    ( tor->error == TR_STAT_TRACKER_WARNING )
+            || ( tor->error == TR_STAT_TRACKER_ERROR ) )
+        {
+            tr_bool clear = TRUE;
+
+            for( i=0; clear && i<trackerCount; ++i )
+                if( !strcmp( trackers[i].announce, tor->errorTracker ) )
+                    clear = FALSE;
+
+            if( clear )
+                tr_torrentClearError( tor );
+        }
+
         /* tell the announcer to reload this torrent's tracker list */
         tr_announcerResetTorrent( tor->session->announcer, tor );
     }
diff --git a/libtransmission/torrent.h b/libtransmission/torrent.h
index dfd61bf1f..9ab21de96 100644
--- a/libtransmission/torrent.h
+++ b/libtransmission/torrent.h
@@ -141,6 +141,7 @@ struct tr_torrent
 
     tr_stat_errtype          error;
     char                     errorString[128];
+    char                     errorTracker[128];
 
     uint8_t                  obfuscatedHash[SHA_DIGEST_LENGTH];
 
-- 
2.40.0