iphone获取当前运行进程列表

通过调用 sys/sysctl.h 读取系统内核获取进程列表 。

代码悦德财富：https://yuedecaifu.com

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+(NSMutableArray *)runningProcesses {     //指定名字参数，按照顺序第一个元素指定本请求定向到内核的哪个子系统，第二个及其后元素依次细化指定该系统的某个部分。     //CTL_KERN，KERN_PROC,KERN_PROC_ALL 正在运行的所有进程     int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_ALL ,0};     size_t miblen = 4;     //值-结果参数：函数被调用时，size指向的值指定该缓冲区的大小；函数返回时，该值给出内核存放在该缓冲区中的数据量     //如果这个缓冲不够大，函数就返回ENOMEM错误     size_t size;     //返回0，成功；返回-1，失败     int st = sysctl(mib, miblen, NULL, &size, NULL, 0);            struct kinfo_proc * process = NULL;     struct kinfo_proc * newprocess = NULL;     do     {         size += size / 10;         newprocess = realloc(process, size);         if (!newprocess)         {             if (process)             {                 free(process);                 process = NULL;             }             return nil;         }         process = newprocess;         st = sysctl(mib, miblen, process, &size, NULL, 0);               }     while (st == -1 && errno == ENOMEM);     if (st == 0)     {               if (size % sizeof(struct kinfo_proc) == 0)         {             int nprocess = size / sizeof(struct kinfo_proc);             if (nprocess)             {                               NSMutableArray * array = [[NSMutableArray alloc] init];                 for (int i = nprocess - 1; i >= 0; i--)                 {                     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];                     NSString * processID = [[NSString alloc] initWithFormat:@"%d", process[i].kp_proc.p_pid];                     NSString * processName = [[NSString alloc] initWithFormat:@"%s", process[i].kp_proc.p_comm];                     NSString * proc_CPU = [[NSString alloc] initWithFormat:@"%d", process[i].kp_proc.p_pctcpu];                                                               //the process duration                     //double t = [[NSDate date] timeIntervalSince1970] - process[i].kp_proc.p_un.__p_starttime.tv_sec;                                           NSString * proc_useTiem = [[NSString alloc] initWithFormat:@"%s",asctime(localtime(&(process[i].kp_proc.p_un.__p_starttime.tv_sec)))];                                        NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];                     [dic setValue:processID forKey:@"ProcessID"];                     [dic setValue:processName forKey:@"ProcessName"];                     [dic setValue:proc_CPU forKey:@"ProcessCPU"];                     [dic setValue:proc_useTiem forKey:@"ProcessUseTime"];                                           [processID release];                     [processName release];                     [proc_CPU release];                     [proc_useTiem release];                     [array addObject:dic];                     [dic release];                     [pool release];                                       }                 free(process);                 process = NULL;                 return array;                               }         }     }     return nil; }