UIDevice Category For Processes

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// .h @interface UIDevice (ProcessesAdditions)- (NSArray *)runningProcesses;@end // .m#import <sys/sysctl.h> @implementation UIDevice (ProcessesAdditions) - (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;} @end // Example usage.NSArray * processes = [[UIDevice currentDevice] runningProcesses];for (NSDictionary * dict in processes){NSLog(@"%@ - %@", [dict objectForKey:@"ProcessID"], [dict objectForKey:@"ProcessName"]);}

A UIDevice category for getting the running processes on an iOS device.

Based on something floating about on the web by Landon Fuller.

Cleaned it up a bit and changed so it returns an NSArray of NSDictionary[s].

文章转自：http://zurb.com/forrst/posts/UIDevice_Category_For_Processes-h1H

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