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authorRoland McGrath <roland@gnu.org>1999-10-04 05:28:33 +0000
committerRoland McGrath <roland@gnu.org>1999-10-04 05:28:33 +0000
commit54e9386dfd4528492fe56512d81a02fc65e69fb6 (patch)
tree15c34fbefd1b7b918205f015337b10cd89173e62 /sysdeps/mach
parentb73549de65de7a374622029bbaa63bcc63c5d48b (diff)
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* misc/Makefile (routines): Add getloadavg.
* sysdeps/generic/getloadavg.c: New file. * sysdeps/mach/getloadavg.c: New file. * sysdeps/unix/sysv/linux/getloadavg.c: New file.
Diffstat (limited to 'sysdeps/mach')
-rw-r--r--sysdeps/mach/getloadavg.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/mach/getloadavg.c b/sysdeps/mach/getloadavg.c
new file mode 100644
index 0000000..b185b6b
--- /dev/null
+++ b/sysdeps/mach/getloadavg.c
@@ -0,0 +1,54 @@
+/* Get system load averages. Mach version.
+ Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <mach.h>
+#include <mach/host_info.h>
+#include <hurd.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+
+/* Put the 1 minute, 5 minute and 15 minute load averages
+ into the first NELEM elements of LOADAVG.
+ Return the number written (never more than 3, but may be less than NELEM),
+ or -1 if an error occurred. */
+
+int
+getloadavg (double loadavg[], int nelem)
+{
+ host_load_info_data_t info;
+ mach_msg_type_number_t size = HOST_LOAD_INFO_COUNT;
+ error_t err;
+ int i;
+
+ err = __host_info (__mach_host_self (), HOST_LOAD_INFO,
+ (host_info_t) &info, &size);
+ if (err)
+ return __hurd_fail (err);
+ if (size < HOST_LOAD_INFO_COUNT)
+ return __hurd_fail (EGRATUITOUS);
+
+ if (nelem > 3)
+ nelem = 3;
+ for (i = 0; i < nelem; ++i)
+ loadavg[i] = (double) info.avenrun[i] * (double) LOAD_SCALE;
+
+ return i;
+}