static void CHANNEL_Send( DaoProcess *proc, DaoValue *par[], int N )
{
DaoValue *data;
DaoFuture *future = DaoProcess_GetInitFuture( proc );
DaoChannel *self = (DaoChannel*) par[0];
float timeout = par[2]->xFloat.value;
DaoProcess_PutBoolean( proc, 1 );
if( self->cap <= 0 ){
DaoProcess_RaiseError( proc, "Param", "channel is closed" );
return;
}
data = DaoValue_DeepCopy( par[1] );
if( data == NULL ){
DaoProcess_RaiseError( proc, "Param", "invalid data for the channel" );
return;
}
//printf( "CHANNEL_Send: %p\n", event );
DaoChannel_Send( self, data );
if( self->buffer->size >= self->cap ){
DaoTaskEvent *event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_SENDING, DAO_EVENT_WAIT, future, self );
proc->status = DAO_PROCESS_SUSPENDED;
proc->pauseType = DAO_PAUSE_CHANNEL_SEND;
DaoCallServer_AddTimedWait( proc, event, timeout );
}
}
void DaoMT_Select( DaoProcess *proc, DaoValue *par[], int n )
{
DNode *it;
DaoTaskEvent *event = NULL;
DaoFuture *future = DaoProcess_GetInitFuture( proc );
DaoMap *selects = (DaoMap*) par[0];
float timeout = par[1]->xFloat.value;
for(it=DaoMap_First(selects); it; it=DaoMap_Next(selects,it)){
DaoValue *value = it->key.pValue;
int isfut = DaoValue_CheckCtype( value, dao_type_future );
int ischan = DaoValue_CheckCtype( value, dao_type_channel );
if( isfut == 0 && ischan == 0 ){
DaoProcess_RaiseError( proc, "Param", "invalid type selection" );
return;
}
}
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_SELECT, DAO_EVENT_WAIT, future, NULL );
GC_Assign( & event->selects, selects );
proc->status = DAO_PROCESS_SUSPENDED;
proc->pauseType = DAO_PAUSE_CHANFUT_SELECT;
DaoCallServer_AddTimedWait( proc, event, timeout );
/* Message may have been sent before this call: */
DMutex_Lock( & daoCallServer->mutex );
DaoChannel_ActivateEvent( NULL, DAO_EVENT_WAIT_SELECT );
DCondVar_Signal( & daoCallServer->condv );
DMutex_Unlock( & daoCallServer->mutex );
}
static void CHANNEL_Send( DaoProcess *proc, DaoValue *par[], int N )
{
DaoValue *data;
DaoFuture *future = DaoProcess_GetInitFuture( proc );
DaoChannel *self = (DaoChannel*) par[0];
float timeout = par[2]->xFloat.value;
if( DaoProcess_CheckCB( proc, "cannot send/block inside code section method" ) ) return;
if( self->cap <= 0 ){
DaoProcess_RaiseException( proc, DAO_ERROR_PARAM, "channel is closed" );
return;
}
data = DaoValue_DeepCopy( par[1] );
if( data == NULL ){
DaoProcess_RaiseException( proc, DAO_ERROR_PARAM, "invalid data for the channel" );
return;
}
//printf( "CHANNEL_Send: %p\n", event );
DMutex_Lock( & daoCallServer->mutex );
DArray_Append( self->buffer, data );
DaoChannel_ActivateEvent( self, DAO_EVENT_WAIT_RECEIVING );
DaoChannel_ActivateEvent( self, DAO_EVENT_WAIT_SELECT );
DCondVar_Signal( & daoCallServer->condv );
DMutex_Unlock( & daoCallServer->mutex );
if( self->buffer->size >= self->cap ){
DaoTaskEvent *event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_SENDING, DAO_EVENT_WAIT, future, self );
proc->status = DAO_PROCESS_SUSPENDED;
proc->pauseType = DAO_PAUSE_CHANNEL_SEND;
DaoCallServer_AddTimedWait( proc, event, timeout );
}
}
void CHANNEL_Select( DaoProcess *proc, DaoValue *par[], int n )
{
DaoTaskEvent *event = NULL;
DaoFuture *future = DaoProcess_GetInitFuture( proc );
DaoList *channels = (DaoList*) par[0];
float timeout = par[1]->xFloat.value;
daoint i, size = DaoList_Size( channels );
for(i=0; i<size; ++i){
DaoValue *value = DaoList_GetItem( channels, i );
if( DaoValue_CheckCtype( value, dao_type_channel ) == 0 ){
DaoProcess_RaiseException( proc, DAO_ERROR_PARAM, "invalid type selection" );
return;
}
}
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_SELECT, DAO_EVENT_WAIT, future, NULL );
event->channels = DArray_Copy( & channels->items );
proc->status = DAO_PROCESS_SUSPENDED;
proc->pauseType = DAO_PAUSE_CHANFUT_SELECT;
DaoCallServer_AddTimedWait( proc, event, timeout );
/* Message may have been sent before this call: */
DMutex_Lock( & daoCallServer->mutex );
DaoChannel_ActivateEvent( NULL, DAO_EVENT_WAIT_SELECT );
DCondVar_Signal( & daoCallServer->condv );
DMutex_Unlock( & daoCallServer->mutex );
}
void DaoCallServer_AddWait( DaoProcess *wait, DaoFuture *pre, double timeout )
{
DaoTaskEvent *event;
DaoCallServer *server = DaoCallServer_TryInit( mainVmSpace );;
DaoFuture *future = DaoProcess_GetInitFuture( wait );
GC_Assign( & future->precond, pre );
future->state = DAO_CALL_PAUSED;
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_TASKLET, DAO_EVENT_WAIT, future, NULL );
DaoCallServer_AddTimedWait( wait, event, timeout );
}
void DaoVmSpace_AddTaskletWait( DaoVmSpace *self, DaoProcess *wait, DaoFuture *pre, double timeout )
{
DaoTaskletEvent *event;
DaoTaskletServer *server = DaoTaskletServer_TryInit( self );
DaoFuture *future = DaoProcess_GetInitFuture( wait );
GC_Assign( & future->precond, pre );
future->state = DAO_TASKLET_PAUSED;
event = DaoTaskletServer_MakeEvent( server );
DaoTaskletEvent_Init( event, DAO_EVENT_WAIT_TASKLET, DAO_EVENT_WAIT, future, NULL );
DaoTaskletServer_AddTimedWait( server, wait, event, timeout );
}
void DaoCallServer_AddWait( DaoProcess *wait, DaoFuture *pre, double timeout )
{
DaoFuture *future;
DaoTaskEvent *event;
DaoCallServer *server;
if( daoCallServer == NULL ) DaoCallServer_Init( mainVmSpace );
server = daoCallServer;
future = DaoProcess_GetInitFuture( wait );
GC_ShiftRC( pre, future->precond );
future->precond = pre;
future->state = DAO_CALL_PAUSED;
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_TASKLET, DAO_EVENT_WAIT, future, NULL );
DaoCallServer_AddTimedWait( wait, event, timeout );
}
static void CHANNEL_Receive( DaoProcess *proc, DaoValue *par[], int N )
{
DaoTaskEvent *event = NULL;
DaoFuture *future = DaoProcess_GetInitFuture( proc );
DaoChannel *self = (DaoChannel*) par[0];
float timeout = par[1]->xFloat.value;
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_WAIT_RECEIVING, DAO_EVENT_WAIT, future, self );
proc->status = DAO_PROCESS_SUSPENDED;
proc->pauseType = DAO_PAUSE_CHANNEL_RECEIVE;
DaoCallServer_AddTimedWait( proc, event, timeout );
/* Message may have been sent before this call: */
if( self->buffer->size ){
DMutex_Lock( & daoCallServer->mutex );
DaoChannel_ActivateEvent( self, DAO_EVENT_WAIT_RECEIVING );
DCondVar_Signal( & daoCallServer->condv );
DMutex_Unlock( & daoCallServer->mutex );
}
}