iphone-common-codes-ccteam源代码 CCDylib.m-优快云博客

本文介绍了一个名为CCDylib的Objective-C类库，该库用于在iOS应用中加载动态链接库（dylib）。文章详细展示了如何通过不同的路径打开动态库文件，并提供了获取动态库中的函数指针的方法。

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//
//  CCDylib.m
//  CCFC
//
//  Created by xichen on 11-12-23.
//  Copyright 2011 ccteam. All rights reserved.
//

#import "CCDylib.h"
#import "CCNSString.h"
#import "CCCommon.h"
#import <dlfcn.h>

@implementation CCDylib

+ (void *)open:(NSString *)dylibFileFullPath
{
    return dlopen([dylibFileFullPath UTF8String], RTLD_LAZY);
}

+ (void *)openSystemDylib:(NSString *)dylibFileName
{
    NSString *path = [dylibFileName systemLibraryPath];
    return [self open:path];
}

+ (void *)openMobileSubstrateDylib:(NSString *)dylibFileName
{
    NSString *path = [NSString stringWithFormat:
            @"%@%@", MOBILE_SUBSTRATE_PATH, dylibFileName];
    return [self open:path];
}


+ (int)close:(void *)dylibPtr
{
    return dlclose(dylibPtr);
}


- (id)initWithFileFullPath:(NSString *)fileFullPath
{
    COMMON_INIT_BEGIN
    
    _handle = [CCDylib open:fileFullPath];
    EQUAL_NULL_RETURN_NIL(_handle)
    
    COMMON_INIT_END
}

- (id)initWithSystemDylib:(NSString *)dylibFileName
{
    COMMON_INIT_BEGIN
    
    _handle = [CCDylib openSystemDylib:dylibFileName];
    EQUAL_NULL_RETURN_NIL(_handle)
    
    COMMON_INIT_END
}

- (id)initWithMobileSubstrateDylib:(NSString *)dylibFileName
{
    COMMON_INIT_BEGIN
    
    _handle = [CCDylib openMobileSubstrateDylib:dylibFileName];
    EQUAL_NULL_RETURN_NIL(_handle)
    
    COMMON_INIT_END
}

- (void)dealloc
{
    [super dealloc];
}


- (intVoidFunc)getIntVoidFunc:(NSString *)funcName
{
    return (intVoidFunc)dlsym(_handle, [funcName UTF8String]);
}

- (voidVoidFunc)getVoidVoidFunc:(NSString *)funcName
{
    return (voidVoidFunc)dlsym(_handle, [funcName UTF8String]);
}

- (charStarVoidFunc)getCharStarVoidFunc:(NSString *)funcName
{
    return (charStarVoidFunc)dlsym(_handle, [funcName UTF8String]);
}

- (nSStringVoidFunc)getNSStringVoidFunc:(NSString *)funcName
{
    return (nSStringVoidFunc)dlsym(_handle, [funcName UTF8String]);
}


- (NSString *)getError
{
    return [NSString stringWithUTF8String:dlerror()];
}


- (int)close
{
    return dlclose(_handle);
}


@end

googlecode链接地址（会有更新）： http://code.google.com/p/iphone-common-codes-ccteam/source/browse/trunk/CCFC/files/CCDylib.m