And this adds support for IRIX to the nproc module. Untested. Testing is
welcome.
2009-10-18 Bruno Haible <br...@clisp.org>
Implement nproc for IRIX.
* lib/nproc.c: Include <sys/sysmp.h>.
(num_processors): On IRIX systems, try sysmp.
* m4/nproc.m4 (gl_PREREQ_NPROC): Check for sys/sysmp.h and sysmp.
--- lib/nproc.c.orig 2009-10-18 10:54:20.000000000 +0200
+++ lib/nproc.c 2009-10-18 10:50:40.000000000 +0200
@@ -29,6 +29,10 @@
# include <sys/pstat.h>
#endif
+#if HAVE_SYS_SYSMP_H
+# include <sys/sysmp.h>
+#endif
+
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
@@ -62,6 +66,17 @@
}
#endif
+#if HAVE_SYSMP && defined MP_NAPROCS
+ { /* This works on IRIX. */
+ /* MP_NPROCS yields the number of installed processors.
+ MP_NAPROCS yields the number of processors available to unprivileged
+ processes. We need the latter. */
+ int nprocs = sysmp (MP_NAPROCS);
+ if (0 < nprocs)
+ return nprocs;
+ }
+#endif
+
#if HAVE_SYSCTL && defined HW_NCPU
{ /* This works on MacOS X, FreeBSD, NetBSD, OpenBSD. */
int nprocs;
--- m4/nproc.m4.orig 2009-10-18 10:54:20.000000000 +0200
+++ m4/nproc.m4 2009-10-18 10:51:38.000000000 +0200
@@ -1,4 +1,4 @@
-# nproc.m4 serial 2
+# nproc.m4 serial 3
dnl Copyright (C) 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -12,7 +12,8 @@
# Prerequisites of lib/nproc.c.
AC_DEFUN([gl_PREREQ_NPROC],
[
- AC_CHECK_HEADERS([sys/pstat.h sys/param.h],,, [AC_INCLUDES_DEFAULT])
+ AC_CHECK_HEADERS([sys/pstat.h sys/sysmp.h sys/param.h],,,
+ [AC_INCLUDES_DEFAULT])
dnl <sys/sysctl.h> requires <sys/param.h> on OpenBSD 4.0.
AC_CHECK_HEADERS([sys/sysctl.h],,,
[AC_INCLUDES_DEFAULT
@@ -20,5 +21,5 @@
# include <sys/param.h>
#endif
])
- AC_CHECK_FUNCS([pstat_getdynamic sysctl])
+ AC_CHECK_FUNCS([pstat_getdynamic sysmp sysctl])
])
