diff options
Diffstat (limited to 'src/pmdas/linux/msg_limits.c')
| -rw-r--r-- | src/pmdas/linux/msg_limits.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/pmdas/linux/msg_limits.c b/src/pmdas/linux/msg_limits.c new file mode 100644 index 0000000..afac20e --- /dev/null +++ b/src/pmdas/linux/msg_limits.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) International Business Machines Corp., 2002 + * This code contributed by Mike Mason <mmlnx@us.ibm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define __USE_GNU 1 /* required for IPC_INFO define */ +#include <sys/ipc.h> +#include <sys/msg.h> + +#include "pmapi.h" +#include "msg_limits.h" + +int +refresh_msg_limits(msg_limits_t *msg_limits) +{ + static struct msginfo msginfo; + static int started; + + if (!started) { + started = 1; + memset(msg_limits, 0, sizeof(msg_limits_t)); + } + + if (msgctl(0, IPC_INFO, (struct msqid_ds *) &msginfo) < 0) { + return -oserror(); + } + + msg_limits->msgpool = msginfo.msgpool; + msg_limits->msgmap = msginfo.msgmap; + msg_limits->msgmax = msginfo.msgmax; + msg_limits->msgmnb = msginfo.msgmnb; + msg_limits->msgmni = msginfo.msgmni; + msg_limits->msgssz = msginfo.msgssz; + msg_limits->msgtql = msginfo.msgtql; + msg_limits->msgseg = msginfo.msgseg; + + /* success */ + return 0; +} |