ngx_delete_pidfile  319 src/core/ngx_cycle.c             ngx_delete_pidfile(old_cycle);
ngx_delete_pidfile  113 src/core/ngx_cycle.h void ngx_delete_pidfile(ngx_cycle_t *cycle);
ngx_delete_pidfile  688 src/os/unix/ngx_process_cycle.c     ngx_delete_pidfile(cycle);