void DList_Assign( DList *left, DList *right )
{
daoint i;
assert( left->type == right->type || (left->type == DAO_DATA_VALUE && right->type == 0) );
if( left == right ) return;
if( right->size == 0 ){
DList_Clear( left );
return;
}
if( left->type ){
DList_Clear( left);
for( i=0; i<right->size; i++ ) DList_Append( left, right->items.pVoid[i] );
}else{
DList_Resize( left, right->size, NULL );
if( left->type == DAO_DATA_VALUE ) DaoGC_LockData();
for( i=0; i<right->size; i++ ) left->items.pVoid[i] = right->items.pVoid[i];
if( left->type == DAO_DATA_VALUE ) DaoGC_UnlockData();
}
}
static void DaoMT_Functional( DaoProcess *proc, DaoValue *P[], int N, int F )
{
DMutex mutex;
DCondVar condv;
DaoTaskData *tasks;
DaoValue *param = P[0];
DaoValue *result = NULL;
DaoList *list = NULL;
DaoArray *array = NULL;
DaoVmCode *sect = NULL;
DaoStackFrame *frame = DaoProcess_FindSectionFrame( proc );
int i, entry, threads = P[1]->xInteger.value;
daoint index = -1, status = 0, joined = 0;
DNode *node = NULL;
switch( F ){
case DVM_FUNCT_MAP :
if( param->type == DAO_ARRAY ){
array = DaoProcess_PutArray( proc );
result = (DaoValue*) array;
}else{
list = DaoProcess_PutList( proc );
result = (DaoValue*) list;
}
break;
case DVM_FUNCT_FIND : DaoProcess_PutValue( proc, dao_none_value ); break;
}
if( threads <= 0 ) threads = 2;
if( frame != proc->topFrame->prev ){
DaoProcess_RaiseError( proc, NULL, "Invalid code section from non-immediate caller" );
return;
}
sect = DaoProcess_InitCodeSection( proc, 0 );
if( sect == NULL ) return;
if( list ){
DList_Clear( list->value );
if( param->type == DAO_LIST ) DList_Resize( list->value, param->xList.value->size, NULL );
if( param->type == DAO_MAP ) DList_Resize( list->value, param->xMap.value->size, NULL );
#ifdef DAO_WITH_NUMARRAY
}else if( array && F == DVM_FUNCT_MAP ){
DaoArray_GetSliceShape( (DaoArray*) param, & array->dims, & array->ndim );
DaoArray_ResizeArray( array, array->dims, array->ndim );
#endif
}
DMutex_Init( & mutex );
DCondVar_Init( & condv );
entry = proc->topFrame->entry;
tasks = (DaoTaskData*) dao_calloc( threads, sizeof(DaoTaskData) );
DaoProcess_PopFrame( proc );
for(i=0; i<threads; i++){
DaoTaskData *task = tasks + i;
task->param = param;
task->result = result;
task->proto = proc;
task->sect = sect;
task->funct = F;
task->entry = entry;
task->first = i;
task->step = threads;
task->index = & index;
task->node = & node;
task->joined = & joined;
task->condv = & condv;
task->mutex = & mutex;
task->clone = DaoVmSpace_AcquireProcess( proc->vmSpace );
if( i ) DaoCallServer_AddTask( DaoMT_RunFunctional, task, task->clone );
}
DaoMT_RunFunctional( tasks );
DMutex_Lock( & mutex );
while( joined < threads ) DCondVar_TimedWait( & condv, & mutex, 0.01 );
DMutex_Unlock( & mutex );
for(i=0; i<threads; i++){
DaoTaskData *task = tasks + i;
DaoVmSpace_ReleaseProcess( proc->vmSpace, task->clone );
status |= task->status;
}
if( F == DVM_FUNCT_FIND ){
DaoTuple *tuple = DaoProcess_PutTuple( proc, 2 );
if( param->type == DAO_LIST && index != -1 ){
DaoValue **items = param->xList.value->items.pValue;
GC_Assign( & tuple->values[1], items[index] );
tuple->values[0]->xInteger.value = index;
}else if( param->type == DAO_MAP && node ){
GC_Assign( & tuple->values[0], node->key.pValue );
GC_Assign( & tuple->values[1], node->value.pValue );
}
}
if( status ) DaoProcess_RaiseError( proc, NULL, "code section execution failed!" );
DMutex_Destroy( & mutex );
DCondVar_Destroy( & condv );
dao_free( tasks );
}
