//  NSBundle+XYQInfomation.m

//  运行时

#import "NSBundle+XYQInfomation.h"

#import <objc/runtime.h>

#import <dlfcn.h> /// 动态链接库头文件

#import <mach-o/ldsyms.h> ///内核动态系统库头文件

@implementation NSBundle (XYQInfomation)

///获取当前工程下自己创建的所有类

+ (NSArray <Class> *)xyq_bundleOwnClassesInfo {

    NSMutableArray *resultArray = [NSMutableArray array];

    unsigned int classCount;

    const char **classes;

    Dl_info info;

    ///_mh_execute_header : mach-o头部的地址

    ///dladdr: 获取app的路径

    dladdr(&_mh_execute_header, &info);

    ///拷贝动态库类列表

    classes = objc_copyClassNamesForImage(info.dli_fname, &classCount);

    dispatch_semaphore_t semaphore = dispatch_semaphore_create();///创建信号

    dispatch_apply(classCount, dispatch_get_global_queue(, ), ^(size_t index) { ///遍历

        dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);///信号加锁

        NSString *className = [NSString stringWithCString:classes[index] encoding:NSUTF8StringEncoding];

        Class class = NSClassFromString(className);

        [resultArray addObject:class];

        dispatch_semaphore_signal(semaphore);///信号释放锁

    });

    ///释放内存

    free(classes);

    return resultArray.mutableCopy;

}

///获取当前工程下所有类（含系统类、cocoPods类）

+ (NSArray <NSString *> *)xyq_bundleAllClassesInfo {

    NSMutableArray *resultArray = [NSMutableArray new];

    ///获取所有类

    int classCount = objc_getClassList(NULL, );

    ///分配内存

    Class *classes = NULL;

    classes = (__unsafe_unretained Class *)malloc(sizeof(Class) *classCount);

    ///获取所有类

    classCount = objc_getClassList(classes, classCount);

    dispatch_semaphore_t semaphore = dispatch_semaphore_create();///创建信号

    dispatch_apply(classCount, dispatch_get_global_queue(, ), ^(size_t index) { ///遍历

        dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER); ///信号加锁

        Class class = classes[index];

        NSString *className = [[NSString alloc] initWithUTF8String: class_getName(class)];

        [resultArray addObject:className];

        dispatch_semaphore_signal(semaphore);///信号释放锁

    });

    ///释放内存

    free(classes);

    return resultArray.mutableCopy;

}

-(void)test_Objc_GetClassList {

    //全部类

    //NSArray *classes = [NSBundle xyq_bundleAllClassesInfo];

    //自定义类

    NSArray *classes = [NSBundle xyq_bundleOwnClassesInfo];

    for (NSString *className in classes) {

        NSLog(@"className = %@",className);

    }

}

-- ::43.443258+ 运行时[:] className = Person

-- ::43.443411+ 运行时[:] className = TestObject

-- ::43.443514+ 运行时[:] className = ViewController

-- ::43.443599+ 运行时[:] className = DataTableViewController

-- ::43.443687+ 运行时[:] className = Student

-- ::43.443771+ 运行时[:] className = AppDelegate

-- ::43.443883+ 运行时[:] className = NoDataEmptyView