/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* 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 <string.h>
#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