From 80f536dbf20510cbabdb042c30baa453d0b069c1 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 20 Jul 2003 08:56:05 +0000 Subject: Update. 2003-07-20 Ulrich Drepper * Makefile (libpthread-routines): Add pthread_attr_getaffinity and pthread_attr_setaffinity. * Versions [libpthread] (GLIBC_2.3.3): Likewise. * sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c: New file. * sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c: New file. * pthread_attr_destroy.c: Free cpuset element if allocated. * pthread_create.c: Pass iattr as additional parameter to create_thread. * sysdeps/pthread/createthread.c: If attribute is provided and a new thread is created with affinity set or scheduling parameters, start thread with CLONE_STOPPED. * sysdeps/pthread/pthread.h: Declare pthread_attr_getaffinity and pthread_attr_setaffinity. * sysdeps/unix/sysv/linux/internaltypes.h (struct pthread_attr): Add cpuset element. --- nptl/sysdeps/unix/sysv/linux/internaltypes.h | 2 + .../unix/sysv/linux/pthread_attr_getaffinity.c | 41 +++++++++++++++++++ .../unix/sysv/linux/pthread_attr_setaffinity.c | 47 ++++++++++++++++++++++ 3 files changed, 90 insertions(+) create mode 100644 nptl/sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c create mode 100644 nptl/sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c (limited to 'nptl/sysdeps/unix') diff --git a/nptl/sysdeps/unix/sysv/linux/internaltypes.h b/nptl/sysdeps/unix/sysv/linux/internaltypes.h index 17d78e4b9f..e2f7b047f1 100644 --- a/nptl/sysdeps/unix/sysv/linux/internaltypes.h +++ b/nptl/sysdeps/unix/sysv/linux/internaltypes.h @@ -35,6 +35,8 @@ struct pthread_attr /* Stack handling. */ void *stackaddr; size_t stacksize; + /* Affinity map. */ + cpu_set_t *cpuset; /* Chain of all initialized attributes. Keep this last since it is not always used. */ diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c b/nptl/sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c new file mode 100644 index 0000000000..e6c795b8b4 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/pthread_attr_getaffinity.c @@ -0,0 +1,41 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include +#include + + +int +pthread_attr_getaffinity_np (attr, cpuset) + const pthread_attr_t *attr; + cpu_set_t *cpuset; +{ + struct pthread_attr *iattr; + + assert (sizeof (*attr) >= sizeof (struct pthread_attr)); + iattr = (struct pthread_attr *) attr; + + memcpy (cpuset, iattr->cpuset, sizeof (cpu_set_t)); + + return 0; +} diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c b/nptl/sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c new file mode 100644 index 0000000000..f25ccb213e --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/pthread_attr_setaffinity.c @@ -0,0 +1,47 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include +#include +#include + + +int +pthread_attr_setaffinity_np (attr, cpuset) + pthread_attr_t *attr; + const cpu_set_t *cpuset; +{ + struct pthread_attr *iattr; + + assert (sizeof (*attr) >= sizeof (struct pthread_attr)); + iattr = (struct pthread_attr *) attr; + + if (iattr->cpuset == NULL) + { + iattr->cpuset = (cpu_set_t *) malloc (sizeof (cpu_set_t)); + if (iattr->cpuset == NULL) + return ENOMEM; + } + + memcpy (iattr->cpuset, cpuset, sizeof (cpu_set_t)); + + return 0; +} -- cgit v1.2.3