# 编程调试 [TOC] 使用`Swoole`协程时，可以使用下面的方法进行调试 ## GDB调试 #### 进入 gdb ~~~ gdb php test.php ~~~ #### gdbinit ~~~ (gdb) source /path/to/swoole-src/gdbinit ~~~ #### 设置断点 例如`co::sleep`函数 ~~~ (gdb) b zim_swoole_coroutine_util_sleep ~~~ #### 打印当前进程的所有协程和状态 ~~~ (gdb) co_list coroutine 1 SW_CORO_YIELD coroutine 2 SW_CORO_RUNNING ~~~ #### 打印当前运行时协程的调用栈 ~~~ (gdb) co_bt coroutine cid:[2] [0x7ffff148a100] Swoole\Coroutine->sleep(0.500000) [internal function] [0x7ffff148a0a0] {closure}() /home/shiguangqi/php/swoole-src/examples/coroutine/exception/test.php:7 [0x7ffff141e0c0] go(object[0x7ffff141e110]) [internal function] [0x7ffff141e030] (main) /home/shiguangqi/php/swoole-src/examples/coroutine/exception/test.php:10 ~~~ #### 打印指定协程id的调用战 ~~~ (gdb) co_bt 1 [0x7ffff1487100] Swoole\Coroutine->sleep(0.500000) [internal function] [0x7ffff14870a0] {closure}() /home/shiguangqi/php/swoole-src/examples/coroutine/exception/test.php:3 [0x7ffff141e0c0] go(object[0x7ffff141e110]) [internal function] [0x7ffff141e030] (main) /home/shiguangqi/php/swoole-src/examples/coroutine/exception/test.php:10 ~~~ #### 打印全局协程的状态 ~~~ (gdb) co_status stack_size: 2097152 call_stack_size: 1 active: 1 coro_num: 2 max_coro_num: 3000 peak_coro_num: 2 ~~~ ## PHP代码调试 遍历当前进程内的所有协程,并打印调用栈。 ~~~ function Coroutine::listCoroutines() : Iterator ~~~ > 需要`4.1.0`或更高版本 * 返回迭代器，可使用`foreach`遍历，或使用`iterator_to_array`转为数组 ~~~ $coros = Coroutine::listCoroutines(); foreach($coros as $cid) { var_dump(Coroutine::getBackTrace($cid)); } ~~~