ngx_random_number   13 core/ngx_file.c ngx_atomic_int_t      ngx_random_number = 123456;
ngx_random_number  229 core/ngx_file.c     add = collision ? ngx_random_number : 1;
ngx_random_number  146 core/ngx_file.h extern ngx_atomic_int_t   ngx_random_number;
ngx_random_number  541 event/ngx_event.c     ngx_random_number = (tp->msec << 16) + ngx_pid;