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@ -14,6 +14,9 @@
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#include "trackerlogic.h"
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#include "trackerlogic.h"
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#include "ot_mutex.h"
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#include "ot_mutex.h"
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//#define MTX_DBG( STRING ) fprintf( stderr, STRING )
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#define MTX_DBG( STRING )
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/* Our global all torrents list */
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/* Our global all torrents list */
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static ot_vector all_torrents[OT_BUCKET_COUNT];
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static ot_vector all_torrents[OT_BUCKET_COUNT];
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@ -114,14 +117,18 @@ int mutex_workqueue_pushtask( int64 socket, ot_tasktype tasktype ) {
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struct ot_task ** tmptask, * task;
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struct ot_task ** tmptask, * task;
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/* Want exclusive access to tasklist */
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/* Want exclusive access to tasklist */
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MTX_DBG( "pushtask locks.\n" );
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pthread_mutex_lock( &tasklist_mutex );
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pthread_mutex_lock( &tasklist_mutex );
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MTX_DBG( "pushtask locked.\n" );
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task = malloc(sizeof( struct ot_task));
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task = malloc(sizeof( struct ot_task));
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if( !task ) {
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if( !task ) {
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MTX_DBG( "pushtask fail unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "pushtask fail unlocked.\n" );
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return -1;
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return -1;
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}
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}
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/* Skip to end of list */
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/* Skip to end of list */
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tmptask = &tasklist;
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tmptask = &tasklist;
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while( *tmptask )
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while( *tmptask )
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@ -136,8 +143,11 @@ int mutex_workqueue_pushtask( int64 socket, ot_tasktype tasktype ) {
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task->next = 0;
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task->next = 0;
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/* Inform waiting workers and release lock */
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/* Inform waiting workers and release lock */
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MTX_DBG( "pushtask broadcasts.\n" );
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pthread_cond_broadcast( &tasklist_being_filled );
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pthread_cond_broadcast( &tasklist_being_filled );
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MTX_DBG( "pushtask broadcasted, mutex unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "pushtask end mutex unlocked.\n" );
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return 0;
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return 0;
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}
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}
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@ -145,7 +155,9 @@ void mutex_workqueue_canceltask( int64 socket ) {
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struct ot_task ** task;
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struct ot_task ** task;
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/* Want exclusive access to tasklist */
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/* Want exclusive access to tasklist */
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MTX_DBG( "canceltask locks.\n" );
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pthread_mutex_lock( &tasklist_mutex );
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pthread_mutex_lock( &tasklist_mutex );
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MTX_DBG( "canceltask locked.\n" );
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task = &tasklist;
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task = &tasklist;
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while( *task && ( (*task)->socket != socket ) )
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while( *task && ( (*task)->socket != socket ) )
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@ -165,7 +177,9 @@ void mutex_workqueue_canceltask( int64 socket ) {
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}
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}
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/* Release lock */
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/* Release lock */
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MTX_DBG( "canceltask unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "canceltask unlocked.\n" );
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}
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}
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ot_taskid mutex_workqueue_poptask( ot_tasktype tasktype ) {
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ot_taskid mutex_workqueue_poptask( ot_tasktype tasktype ) {
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@ -173,7 +187,9 @@ ot_taskid mutex_workqueue_poptask( ot_tasktype tasktype ) {
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ot_taskid taskid = 0;
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ot_taskid taskid = 0;
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/* Want exclusive access to tasklist */
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/* Want exclusive access to tasklist */
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MTX_DBG( "poptask mutex locks.\n" );
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pthread_mutex_lock( &tasklist_mutex );
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pthread_mutex_lock( &tasklist_mutex );
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MTX_DBG( "poptask mutex locked.\n" );
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while( !taskid ) {
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while( !taskid ) {
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/* Skip to the first unassigned task this worker wants to do */
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/* Skip to the first unassigned task this worker wants to do */
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@ -185,15 +201,18 @@ ot_taskid mutex_workqueue_poptask( ot_tasktype tasktype ) {
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and leave the loop */
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and leave the loop */
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if( task ) {
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if( task ) {
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task->taskid = taskid = ++next_free_taskid;
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task->taskid = taskid = ++next_free_taskid;
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break;
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} else {
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/* Wait until the next task is being fed */
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MTX_DBG( "poptask cond waits.\n" );
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pthread_cond_wait( &tasklist_being_filled, &tasklist_mutex );
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MTX_DBG( "poptask cond waited.\n" );
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}
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}
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/* Wait until the next task is being fed */
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pthread_cond_wait( &tasklist_being_filled, &tasklist_mutex );
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}
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}
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/* Release lock */
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/* Release lock */
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MTX_DBG( "poptask end mutex unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "poptask end mutex unlocked.\n" );
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return taskid;
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return taskid;
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}
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}
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@ -201,7 +220,9 @@ ot_taskid mutex_workqueue_poptask( ot_tasktype tasktype ) {
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int mutex_workqueue_pushresult( ot_taskid taskid, int iovec_entries, struct iovec *iovec ) {
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int mutex_workqueue_pushresult( ot_taskid taskid, int iovec_entries, struct iovec *iovec ) {
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struct ot_task * task;
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struct ot_task * task;
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/* Want exclusive access to tasklist */
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/* Want exclusive access to tasklist */
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MTX_DBG( "pushresult locks.\n" );
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pthread_mutex_lock( &tasklist_mutex );
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pthread_mutex_lock( &tasklist_mutex );
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MTX_DBG( "pushresult locked.\n" );
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task = tasklist;
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task = tasklist;
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while( task && ( task->taskid != taskid ) )
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while( task && ( task->taskid != taskid ) )
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@ -214,7 +235,9 @@ int mutex_workqueue_pushresult( ot_taskid taskid, int iovec_entries, struct iove
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}
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}
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/* Release lock */
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/* Release lock */
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MTX_DBG( "pushresult unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "pushresult unlocked.\n" );
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/* Indicate whether the worker has to throw away results */
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/* Indicate whether the worker has to throw away results */
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return task ? 0 : -1;
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return task ? 0 : -1;
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@ -225,11 +248,13 @@ int64 mutex_workqueue_popresult( int *iovec_entries, struct iovec ** iovec ) {
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int64 socket = -1;
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int64 socket = -1;
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/* Want exclusive access to tasklist */
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/* Want exclusive access to tasklist */
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MTX_DBG( "popresult locks.\n" );
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pthread_mutex_lock( &tasklist_mutex );
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pthread_mutex_lock( &tasklist_mutex );
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MTX_DBG( "popresult locked.\n" );
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task = &tasklist;
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task = &tasklist;
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while( *task && ( (*task)->tasktype != OT_TASKTYPE_DONE ) )
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while( *task && ( (*task)->tasktype != OT_TASKTYPE_DONE ) )
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*task = (*task)->next;
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task = &(*task)->next;
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if( *task && ( (*task)->tasktype == OT_TASKTYPE_DONE ) ) {
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if( *task && ( (*task)->tasktype == OT_TASKTYPE_DONE ) ) {
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struct ot_task *ptask = *task;
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struct ot_task *ptask = *task;
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@ -243,11 +268,15 @@ int64 mutex_workqueue_popresult( int *iovec_entries, struct iovec ** iovec ) {
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}
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}
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/* Release lock */
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/* Release lock */
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MTX_DBG( "popresult unlocks.\n" );
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pthread_mutex_unlock( &tasklist_mutex );
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pthread_mutex_unlock( &tasklist_mutex );
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MTX_DBG( "popresult unlocked.\n" );
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return socket;
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return socket;
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}
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}
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void mutex_init( ) {
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void mutex_init( ) {
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pthread_mutex_init(&tasklist_mutex, NULL);
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pthread_cond_init (&tasklist_being_filled, NULL);
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pthread_mutex_init(&bucket_mutex, NULL);
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pthread_mutex_init(&bucket_mutex, NULL);
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pthread_cond_init (&bucket_being_unlocked, NULL);
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pthread_cond_init (&bucket_being_unlocked, NULL);
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byte_zero( all_torrents, sizeof( all_torrents ) );
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byte_zero( all_torrents, sizeof( all_torrents ) );
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@ -256,5 +285,7 @@ void mutex_init( ) {
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void mutex_deinit( ) {
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void mutex_deinit( ) {
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pthread_mutex_destroy(&bucket_mutex);
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pthread_mutex_destroy(&bucket_mutex);
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pthread_cond_destroy(&bucket_being_unlocked);
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pthread_cond_destroy(&bucket_being_unlocked);
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pthread_mutex_destroy(&tasklist_mutex);
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pthread_cond_destroy(&tasklist_being_filled);
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byte_zero( all_torrents, sizeof( all_torrents ) );
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byte_zero( all_torrents, sizeof( all_torrents ) );
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}
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}
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