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(trunk libT) more heap pruning: use a hash, rather than an allocated string in tr-core when watching for a torrent's tracker list to change

This commit is contained in:
Jordan Lee 2011-04-05 01:36:37 +00:00
parent 46dd6f17ab
commit afa016704f
1 changed files with 14 additions and 15 deletions
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29
gtk/tr-core.c
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@ -235,7 +235,7 @@ core_init( GTypeInstance * instance, gpointer g_class UNUSED )
G_TYPE_INT, /* tr_stat.activity */
G_TYPE_UCHAR, /* tr_stat.finished */
G_TYPE_CHAR, /* tr_priority_t */
G_TYPE_STRING, /* concatenated trackers string */
G_TYPE_UINT, /* build_torrent_trackers_hash() */
G_TYPE_INT, /* MC_ERROR */
G_TYPE_INT }; /* MC_ACTIVE_PEER_COUNT */
@ -909,17 +909,19 @@ get_collated_name( const tr_torrent * tor )
return collated;
}
static char *
build_torrent_tracker_string( tr_torrent * tor )
static unsigned int
build_torrent_trackers_hash( tr_torrent * tor )
{
int i;
GString * str = g_string_new( NULL );
const tr_info * inf = tr_torrentInfo( tor );
const char * pch;
uint64_t hash = 0;
const tr_info * const inf = tr_torrentInfo( tor );
for( i=0; i<inf->trackerCount; ++i )
g_string_append( str, inf->trackers[i].announce );
for( pch=inf->trackers[i].announce; *pch; ++pch )
hash = (hash<<4) ^ (hash>>28) ^ *pch;
return g_string_free( str, FALSE );
return hash;
}
static gboolean
@ -939,7 +941,7 @@ gtr_core_add_torrent( TrCore * core, tr_torrent * tor, gboolean do_notify )
const tr_stat * st = tr_torrentStat( tor );
const char * name = tr_torrentName( tor );
char * collated = get_collated_name( tor );
char * trackers = build_torrent_tracker_string( tor );
const unsigned int trackers_hash = build_torrent_trackers_hash( tor );
GtkListStore * store = GTK_LIST_STORE( core_raw_model( core ) );
gtk_list_store_insert_with_values( store, &unused, 0,
@ -954,7 +956,7 @@ gtr_core_add_torrent( TrCore * core, tr_torrent * tor, gboolean do_notify )
MC_ACTIVITY, st->activity,
MC_FINISHED, st->finished,
MC_PRIORITY, tr_torrentGetPriority( tor ),
MC_TRACKERS, trackers,
MC_TRACKERS, trackers_hash,
-1 );
if( do_notify )
@ -964,7 +966,6 @@ gtr_core_add_torrent( TrCore * core, tr_torrent * tor, gboolean do_notify )
/* cleanup */
g_free( collated );
g_free( trackers );
}
}
@ -1368,7 +1369,7 @@ update_foreach( GtkTreeModel * model,
bool oldFinished, newFinished;
tr_priority_t oldPriority, newPriority;
char * oldCollatedName, * newCollatedName;
char * oldTrackers, * newTrackers;
unsigned int oldTrackers, newTrackers;
double oldUpSpeed, newUpSpeed;
double oldDownSpeed, newDownSpeed;
double oldRecheckProgress, newRecheckProgress;
@ -1398,7 +1399,7 @@ update_foreach( GtkTreeModel * model,
newActivity = st->activity;
newFinished = st->finished;
newPriority = tr_torrentGetPriority( tor );
newTrackers = build_torrent_tracker_string( tor );
newTrackers = build_torrent_trackers_hash( tor );
newUpSpeed = st->pieceUploadSpeed_KBps;
newDownSpeed = st->pieceDownloadSpeed_KBps;
newRecheckProgress = st->recheckProgress;
@ -1414,7 +1415,7 @@ update_foreach( GtkTreeModel * model,
|| ( newPriority != oldPriority )
|| ( newError != oldError )
|| ( newActivePeerCount != oldActivePeerCount )
|| tr_strcmp0( oldTrackers, newTrackers )
|| ( newTrackers != oldTrackers )
|| tr_strcmp0( oldCollatedName, newCollatedName )
|| gtr_compare_double( newUpSpeed, oldUpSpeed, 3 )
|| gtr_compare_double( newDownSpeed, oldDownSpeed, 3 )
@ -1438,8 +1439,6 @@ update_foreach( GtkTreeModel * model,
/* cleanup */
g_free( newCollatedName );
g_free( oldCollatedName );
g_free( newTrackers );
g_free( oldTrackers );
return FALSE;
}