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-rw-r--r--ChangeLog5
-rw-r--r--misc/Makefile5
-rw-r--r--sysdeps/generic/getloadavg.c37
-rw-r--r--sysdeps/mach/getloadavg.c54
-rw-r--r--sysdeps/unix/sysv/linux/getloadavg.c64
5 files changed, 163 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index c41c509101..5b3e3547a4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
1999-10-04 Roland McGrath <roland@baalperazim.frob.com>
+ * 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.
+
* sysdeps/generic/memrchr.c: New file, adapted from memchr.c.
* sysdeps/i386/bits/string.h (__memrchr): New function.
* string/string.h: Declare memrchr, __memrchr.
diff --git a/misc/Makefile b/misc/Makefile
index a1aeaa6c32..e469440e26 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+# Copyright (C) 1991,92,93,94,95,96,97,98,99 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
@@ -56,7 +56,8 @@ routines := brk sbrk sstk ioctl \
efgcvt efgcvt_r qefgcvt qefgcvt_r \
hsearch hsearch_r tsearch lsearch \
err error ustat \
- getsysstats dirname regexp
+ getsysstats dirname regexp \
+ getloadavg
include ../Makeconfig
diff --git a/sysdeps/generic/getloadavg.c b/sysdeps/generic/getloadavg.c
new file mode 100644
index 0000000000..ddbac7e483
--- /dev/null
+++ b/sysdeps/generic/getloadavg.c
@@ -0,0 +1,37 @@
+/* Get system load averages. Stub 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 <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)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (getloadavg)
+#include <stub-tag.h>
diff --git a/sysdeps/mach/getloadavg.c b/sysdeps/mach/getloadavg.c
new file mode 100644
index 0000000000..b185b6b62f
--- /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;
+}
diff --git a/sysdeps/unix/sysv/linux/getloadavg.c b/sysdeps/unix/sysv/linux/getloadavg.c
new file mode 100644
index 0000000000..1612ad2e56
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getloadavg.c
@@ -0,0 +1,64 @@
+/* Get system load averages. Linux (/proc/loadavg) 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 <errno.h>
+#include <unistd.h>
+#include <fcntl.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)
+{
+ int fd;
+
+ fd = __open ("/proc/loadavg", O_RDONLY);
+ if (fd < 0)
+ return -1;
+ else
+ {
+ char buf[65], *p;
+ ssize_t nread;
+ int i;
+
+ nread = __read (fd, buf, sizeof buf - 1);
+ close (fd);
+ if (nread < 0)
+ return -1;
+ buf[nread - 1] = '\0';
+
+ if (nelem > 3)
+ nelem = 3;
+ p = buf;
+ for (i = 0; i < nelem; ++i)
+ {
+ char *endp;
+ loadavg[i] = strtod (p, &endp);
+ if (!endp || endp == p)
+ break;
+ p = endp;
+ }
+
+ return i;
+ }
+}