sigchld_handler 1493 main/main.c signal(SIGCHLD, sigchld_handler); sigchld_handler 1546 main/main.c signal(SIGCHLD, sigchld_handler); sigchld_handler 1616 main/main.c signal(SIGCHLD, sigchld_handler); sigchld_handler 1648 main/main.c signal(SIGCHLD, sigchld_handler); sigchld_handler 70 sapi/apache_hooks/sapi_apache.c signal(SIGCHLD, sigchld_handler);