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文档中 swoole 锁的示例程序问题

http://wiki.swoole.com/wiki/page/127.html
通过 strace 运行了一下，好像没有看到 Child 拿到锁啊，求解！
strace 结果如下
{{{
...
ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffa4c1ac58) = -1 ENOTTY (Inappropriate ioctl for device)
fstat(3, {st_mode=S_IFREG|0664, st_size=398, ...}) = 0
mmap(NULL, 430, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fbee2bb9000
munmap(0x7fbee2bb9000, 430)             = 0
close(3)                                = 0
munmap(0x7fbee2bbc000, 4096)            = 0
write(1, "[Master]create lock\n", 20[Master]create lock
)   = 20
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fbee2ba59d0) = 2141
[Child] Wait Lock
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, 0x7fffa4c1afb0)       = 0
write(1, "[Master]release lock\n", 21[Master]release lock
)  = 21
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], 0}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, 0x7fffa4c1afb0)       = 0
write(1, "[Master]exit\n", 13[Master]exit
)          = 13
munmap(0x7fbedb05f000, 790528)          = 0
close(2)                                = 0
close(1)                                = 0
munmap(0x7fbee2bba000, 4096)            = 0
close(0)                                = 0
munmap(0x7fbee2bbb000, 4096)            = 0
munmap(0x7fbedb321000, 2172504)         = 0
munmap(0x7fbedb534000, 2355304)         = 0
munmap(0x7fbedb774000, 2368864)         = 0
munmap(0x7fbedb9b7000, 2517512)         = 0
munmap(0x7fbedbc1e000, 2157104)         = 0
munmap(0x7fbedbe2d000, 2272264)         = 0
munmap(0x7fbee2a62000, 1052672)         = 0
munmap(0x7fbee2b63000, 266240)          = 0
munmap(0x7fbee2a13000, 323584)          = 0
exit_group(0)                           = ?
}}}

发布于7年前 · 2 次浏览 · 来自提问

Nasser Xu