iPhone开发之－iPhone category for processes
// .h @interface UIDevice (ProcessesAdditions) - (NSArray *)runningProcesses; @end
// Example usage.NSArray * processes = [[UIDevice currentDevice] runningProcesses];for (NSDictionary * dict in processes){ NSLog(@"%@ - %@", [dict objectForKey:@"ProcessID"], [dict objectForKey:@"ProcessName"]);}
2、
// .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:[NSArrayarrayWithObjects:@"ProcessID", @"ProcessName", nil]];
[processID release];
[processName release];
[array addObject:dict];
[dict release];
}
free(process);
return [array autorelease];
}
}
}
return nil;
}
@end