void DaoCallServer_AddCall( DaoProcess *caller )
{
DaoProcess *callee = DaoVmSpace_AcquireProcess( caller->vmSpace );
DaoStackFrame *frame = caller->topFrame;
DaoTaskEvent *event = DaoCallServer_MakeEvent();
DaoType *type = (DaoType*) frame->routine->routType->aux;
DaoFuture *future = DaoFuture_New( type, 1 );
DaoValue **params = caller->stackValues + caller->topFrame->stackBase;
int i, count = caller->topFrame->parCount;
future->state = DAO_CALL_PAUSED;
future->actor = caller->topFrame->object;
GC_IncRC( future->actor );
GC_ShiftRC( future, callee->future );
callee->future = future;
future->process = callee;
GC_IncRC( future->process );
callee->parCount = count;
for(i=0; i<count; ++i) DaoValue_Copy( params[i], & callee->paramValues[i] );
DaoProcess_PushRoutine( callee, caller->topFrame->routine, future->actor );
DaoTaskEvent_Init( event, DAO_EVENT_RESUME_TASKLET, DAO_EVENT_RESUME, future, NULL );
DaoProcess_PopFrame( caller );
DaoProcess_PutValue( caller, (DaoValue*) future );
DaoCallServer_Add( event );
}
static void DaoMT_InitProcess( DaoProcess *proto, DaoProcess *clone )
{
DaoProcess_PushRoutine( clone, proto->activeRoutine, proto->activeObject );
clone->activeCode = proto->activeCode;
DaoProcess_PushFunction( clone, proto->topFrame->routine );
DaoProcess_SetActiveFrame( clone, clone->topFrame );
DaoProcess_PushSectionFrame( clone );
clone->topFrame->outer = proto;
clone->topFrame->sect = proto->topFrame->prev;
clone->topFrame->returning = -1;
}
static void DaoMT_InitProcess( DaoProcess *proto, DaoProcess *clone, int argcount )
{
DaoProcess_PushRoutine( clone, proto->activeRoutine, proto->activeObject );
clone->activeCode = proto->activeCode;
DaoProcess_PushFunction( clone, proto->topFrame->routine );
DaoProcess_InitCodeSection( clone, argcount );
clone->topFrame->outer = proto;
clone->topFrame->host = proto->topFrame->prev;
clone->topFrame->retmode = DVM_RET_PROCESS;
clone->topFrame->returning = 0;
}
static void COROUT_Start( DaoProcess *proc, DaoValue *par[], int N )
{
DaoxCoroutine *self = (DaoxCoroutine*) par[0];
DaoValue *params[DAO_MAX_PARAM];
DaoValue *val = par[1];
DaoProcess *vmProc;
DaoRoutine *rout;
int i, passed = 0;
if( val == NULL || val->type != DAO_ROUTINE ){
DaoProcess_RaiseError( proc, "Type", NULL );
return;
}
params[0] = par[0];
memcpy( params + 1, par + 2, (N-2)*sizeof(DaoValue*) );
rout = DaoRoutine_Resolve( (DaoRoutine*)val, NULL, NULL, params, NULL, N-1, DVM_CALL );
if( rout ) rout = DaoProcess_PassParams( proc, rout, NULL, NULL, params, NULL, N-1, DVM_CALL );
if( rout == NULL || rout->body == NULL ){
DaoProcess_RaiseError( proc, "Param", "not matched" );
return;
}
if( self->process == NULL ){
self->process = DaoProcess_New( proc->vmSpace );
GC_IncRC( self->process );
}
vmProc = self->process;
DaoProcess_PushRoutine( vmProc, rout, NULL );
vmProc->activeValues = vmProc->stackValues + vmProc->topFrame->stackBase;
for(i=0; i<rout->parCount; i++){
vmProc->activeValues[i] = proc->paramValues[i];
GC_IncRC( vmProc->activeValues[i] );
}
vmProc->status = DAO_PROCESS_SUSPENDED;
vmProc->pauseType = DAO_PAUSE_COROUTINE_YIELD;
DaoProcess_Start( vmProc );
DaoProcess_PutValue( proc, vmProc->stackValues[0] );
if( vmProc->status == DAO_PROCESS_ABORTED )
DaoProcess_RaiseError( proc, NULL, "coroutine execution is aborted." );
}
void DaoCallServer_AddCall( DaoProcess *caller )
{
DaoFuture *future;
DaoTaskEvent *event;
DaoProcess *callee = DaoVmSpace_AcquireProcess( caller->vmSpace );
DaoStackFrame *frame = caller->topFrame;
DaoRoutine *routine = frame->routine;
DaoType *type = (DaoType*) routine->routType->aux;
DaoValue **params = caller->stackValues + caller->topFrame->stackBase;
int i, count = caller->topFrame->parCount;
if( caller->activeCode->b & DAO_CALL_BLOCK ){
DaoValue **calleeValues, **callerValues = caller->activeValues;
DaoStackFrame *sectFrame = DaoProcess_FindSectionFrame( caller );
DaoStackFrame *callerFrame = caller->topFrame->prev;
DaoVmCode *vmc, *end, *sect;
if( sectFrame != callerFrame ){
DaoVmSpace_ReleaseProcess( caller->vmSpace, callee );
DaoProcess_RaiseError( caller, NULL, "Invalid code section" );
return;
}
if( routine->body ){
DaoProcess_PushRoutine( callee, callerFrame->routine, callerFrame->object );
callerValues = caller->stackValues + callerFrame->stackBase;
}else{
DaoProcess_PushRoutine( callee, caller->activeRoutine, caller->activeObject );
}
DaoProcess_SetActiveFrame( callee, callee->topFrame );
calleeValues = callee->stackValues + callee->topFrame->stackBase;
callee->activeCode = caller->activeCode;
vmc = callerFrame->routine->body->vmCodes->data.codes + callerFrame->entry;
end = callerFrame->routine->body->vmCodes->data.codes + vmc->b;
sect = vmc + 1;
for(vmc=sect; vmc!=end; vmc++){
int i = -1, code = vmc->code;
if( code == DVM_GETVH || (code >= DVM_GETVH_I && code <= DVM_GETVH_C) ){
i = vmc->b;
}else if( code == DVM_SETVH || (code >= DVM_SETVH_II && code <= DVM_SETVH_CC) ){
i = vmc->b;
}
if( i >= 0 ) DaoValue_Move( callerValues[i], & calleeValues[i], NULL );
}
}
future = DaoFuture_New( type, 1 );
future->state = DAO_CALL_PAUSED;
future->actor = caller->topFrame->object;
GC_IncRC( future->actor );
GC_Assign( & future->process, callee );
GC_Assign( & callee->future, future );
callee->parCount = count;
/* Use routine->parCount instead of caller->topFrame->parCount, for default parameters: */
for(i=0; i<routine->parCount; ++i) DaoValue_Copy( params[i], & callee->paramValues[i] );
if( routine->body ){
DaoProcess_PushRoutine( callee, routine, future->actor );
}else{
DaoProcess_PushFunction( callee, routine );
callee->activeNamespace = caller->activeNamespace;
}
if( caller->activeCode->b & DAO_CALL_BLOCK ){
callee->topFrame->host = callee->topFrame;
callee->topFrame->retmode = DVM_RET_PROCESS;
callee->topFrame->returning = 0;
}
#ifdef DAO_WITH_CONCURRENT
DaoCallServer_TryInit( mainVmSpace );
event = DaoCallServer_MakeEvent();
DaoTaskEvent_Init( event, DAO_EVENT_RESUME_TASKLET, DAO_EVENT_RESUME, future, NULL );
DaoProcess_PopFrame( caller );
DaoProcess_PutValue( caller, (DaoValue*) future );
DaoCallServer_Add( event );
#else
DaoProcess_PopFrame( caller );
DaoProcess_PutValue( caller, (DaoValue*) future );
DaoProcess_InterceptReturnValue( callee );
DaoProcess_Execute( callee );
DaoProcess_ReturnFutureValue( callee, future );
DaoVmSpace_ReleaseProcess( caller->vmSpace, callee );
#endif
}