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，该库提供了动态加载和使用动态链接库的功能。通过CCDylib，可以实现对不同路径下的动态链接库进行加载，并提供了获取动态库中函数指针的方法。

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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