/* * Copyright (c) 2008-2021 Jonathan Schleifer * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #include #import "OFInvocation.h" #import "OFArray.h" #import "OFData.h" #import "OFMethodSignature.h" #ifdef OF_INVOCATION_CAN_INVOKE extern void OFInvocationInvoke(OFInvocation *); #endif @implementation OFInvocation @synthesize methodSignature = _methodSignature; + (instancetype)invocationWithMethodSignature: (OFMethodSignature *)signature { return [[[self alloc] initWithMethodSignature: signature] autorelease]; } - (instancetype)initWithMethodSignature: (OFMethodSignature *)signature { self = [super init]; @try { void *pool = objc_autoreleasePoolPush(); size_t numberOfArguments = signature.numberOfArguments; const char *typeEncoding; size_t typeSize; _methodSignature = [signature retain]; _arguments = [[OFMutableArray alloc] init]; for (size_t i = 0; i < numberOfArguments; i++) { OFMutableData *data; typeEncoding = [_methodSignature argumentTypeAtIndex: i]; typeSize = OFSizeOfTypeEncoding(typeEncoding); data = [OFMutableData dataWithItemSize: typeSize capacity: 1]; [data increaseCountBy: 1]; [_arguments addObject: data]; } typeEncoding = _methodSignature.methodReturnType; typeSize = OFSizeOfTypeEncoding(typeEncoding); if (typeSize > 0) { _returnValue = [[OFMutableData alloc] initWithItemSize: typeSize capacity: 1]; [_returnValue increaseCountBy: 1]; } objc_autoreleasePoolPop(pool); } @catch (id e) { [self release]; @throw e; } return self; } - (void)dealloc { [_methodSignature release]; [_arguments release]; [_returnValue release]; [super dealloc]; } - (void)setArgument: (const void *)buffer atIndex: (size_t)idx { OFMutableData *data = [_arguments objectAtIndex: idx]; memcpy(data.mutableItems, buffer, data.itemSize); } - (void)getArgument: (void *)buffer atIndex: (size_t)idx { OFData *data = [_arguments objectAtIndex: idx]; memcpy(buffer, data.items, data.itemSize); } - (void)setReturnValue: (const void *)buffer { memcpy(_returnValue.mutableItems, buffer, _returnValue.itemSize); } - (void)getReturnValue: (void *)buffer { memcpy(buffer, _returnValue.items, _returnValue.itemSize); } #ifdef OF_INVOCATION_CAN_INVOKE - (void)invoke { OFInvocationInvoke(self); } #endif @end