iOS获取系统进程

添加头

#import <sys/sysctl.h>

代码如下：

- (NSArray *)runningProcesses {
 
    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0};
    size_t miblen = 4;
 
    size_t size;
    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);
            }
 
            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--){
 
                    NSString * processID = [[NSString alloc] initWithFormat:@"%d", process[i].kp_proc.p_pid];
                    NSString * processName = [[NSString alloc] initWithFormat:@"%s", process[i].kp_proc.p_comm];
 
                    NSDictionary * dict = [[NSDictionary alloc] initWithObjects:[NSArray arrayWithObjects:processID, processName, nil] 
                                                                        forKeys:[NSArray arrayWithObjects:@"ProcessID", @"ProcessName", nil]];
                    [processID release];
                    [processName release];
                    [array addObject:dict];
                    [dict release];
                }
 
                free(process);
                return [array autorelease];
            }
        }
    }
 
    return nil;
}