_O_RDONLY 55 opal/mca/event/libevent2022/libevent/sample/http-server.c #define O_RDONLY _O_RDONLY _O_RDONLY 167 opal/mca/event/libevent2022/libevent/test/regress_main.c return _open_osfhandle((intptr_t)h,_O_RDONLY);