NSLog()输出中方括号中的数字是多少？

Question

[]下面的日志消息之间有什么东西？我在我的iPhone应用程序中得到了这个,我不知道消息来自哪里.我的第一个猜测是行号,但它会在哪个文件中？

2010-10-19 08:56:12.006 Encore[376:6907]

Answer 1

第一个数字是进程ID,第二个是日志记录线程的Mach端口.桌面示例:

2010-10-19 17:37:13.189 nc_init[28617:a0f] nc <CFNotificationCenter 0x10010d170 [0x7fff70d96f20]> - default <CFNotificationCenter 0x10010d2a0 [0x7fff70d96f20]>

(gdb) i thread
Thread 1 has current state "WAITING"
    Mach port #0xa0f (gdb port #0x4203)
    frame 0: main () at nc_init.m:10
    pthread ID: 0x7fff70ebfc20
    system-wide unique thread id: 0x167b49
    dispatch queue name: "com.apple.main-thread"
    dispatch queue flags: 0x0
    total user time: 13232000
    total system time: 16099000
    scaled cpu usage percentage: 0
    scheduling policy in effect: 0x1
    run state: 0x3 (WAITING)
    flags: 0x0
    number of seconds that thread has slept: 0
    current priority: 31
    max priority: 63
    suspend count: 0.

(gdb) p/x (int)mach_thread_self()
$1 = 0xa0f

注意如何将0xa0f报告为线程的Mach端口.