static void BAMReaderWhack(BAMReader *const self)
{
KThreadCancel(self->th);
KThreadWait(self->th, NULL);
BAMFileRelease(self->file);
KConditionRelease(self->need_data);
KConditionRelease(self->have_data);
KLockRelease(self->lock);
KThreadRelease(self->th);
}
rc_t BAMReaderMake( const BAMReader **result,
char const headerText[],
char const path[] )
{
rc_t rc;
BAMReader *self = malloc(sizeof(BAMReader));
if ( self == NULL )
{
*result = NULL;
return RC(rcAlign, rcFile, rcConstructing, rcMemory, rcExhausted);
}
else
{
atomic32_set( & self->refcount, 1 );
rc = BAMFileMakeWithHeader( & self->file, headerText, "%s", path);
if ( rc != 0 )
{
free(self);
*result = 0;
}
else
*result = self;
}
self->nque = 0;
self->rc = 0;
self->eof = false;
rc = KLockMake(&self->lock);
if (rc == 0)
{
rc = KConditionMake(&self->have_data);
if (rc == 0)
{
rc = KConditionMake(&self->need_data);
if (rc == 0)
{
rc = KThreadMake(&self->th, BAMReaderThreadMain, self);
if (rc == 0)
return 0;
KConditionRelease(self->need_data);
}
KConditionRelease(self->have_data);
}
KLockRelease(self->lock);
}
return rc;
}
/* Whack
*/
rc_t VCursorWhack ( VCursor *self )
{
#if VCURSOR_FLUSH_THREAD
if ( self -> flush_thread != NULL )
{
rc_t rc = KLockAcquire ( self -> flush_lock );
if ( rc == 0 )
{
while ( self -> flush_state == vfBusy )
{
MTCURSOR_DBG (( "VCursorWhack: waiting for thread to process\n" ));
KConditionWait ( self -> flush_cond, self -> flush_lock );
}
self -> flush_state = vfExit;
KConditionSignal ( self -> flush_cond );
KLockUnlock ( self -> flush_lock );
}
MTCURSOR_DBG (( "VCursorWhack: waiting on thread to exit\n" ));
KThreadWait ( self -> flush_thread, NULL );
}
MTCURSOR_DBG (( "VCursorWhack: finishing\n" ));
KThreadRelease ( self -> flush_thread );
KConditionRelease ( self -> flush_cond );
KLockRelease ( self -> flush_lock );
#endif
VCursorTerminatePagemapThread(self);
return VCursorDestroy ( self );
}
/* Whack
*/
static
rc_t KSemaphoreWhack ( KSemaphore *self )
{
rc_t rc;
if ( self -> waiting != 0 )
return RC ( rcPS, rcSemaphore, rcDestroying, rcSemaphore, rcBusy );
rc = KConditionRelease ( self -> cond );
if ( rc != 0 )
return ResetRCContext ( rc, rcPS, rcSemaphore, rcDestroying );
free ( self );
return 0;
}
