Question

我如何能够从程序上获得其他应用的指南?

Seems that there is no proc_pidpath calls onOS.

Answer 1

“SiOS”和“sysctl

- (NSString *)pathFromProcessID:(NSUInteger)pid {

    // First ask the system how big a buffer we should allocate
    int mib[3] = {CTL_KERN, KERN_ARGMAX, 0};

    size_t argmaxsize = sizeof(size_t);
    size_t size;

    int ret = sysctl(mib, 2, &size, &argmaxsize, NULL, 0);

    if (ret != 0) {
        NSLog(@"Error  %s  (%d) getting KERN_ARGMAX", strerror(errno), errno);            

        return nil;
    }

    // Then we can get the path information we actually want
    mib[1] = KERN_PROCARGS2;
    mib[2] = (int)pid;

    char *procargv = malloc(size);

    ret = sysctl(mib, 3, procargv, &size, NULL, 0);

    if (ret != 0) {
        NSLog(@"Error  %s  (%d) for pid %d", strerror(errno), errno, pid);            

        free(procargv);

        return nil;
    }

    // procargv is actually a data structure.  
    // The path is at procargv + sizeof(int)        
    NSString *path = [NSString stringWithCString:(procargv + sizeof(int))
                                        encoding:NSASCIIStringEncoding];

    free(procargv);

    return(path);
}

Answer 2

相对于此,Siper的物品受到的限制更大。如果您愿意在申请之间分享档案,考虑使用i±,那么,鉴于开发商属于同一用途,它将允许你查阅不同平台甚至不同平台的档案。 Ray Wenderlich写道:

友情链接