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New API : glibtop_get_proc_affinity.

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Implemented for linux.

svn path=/trunk/; revision=2609
This commit is contained in:
Benoît Dejean
2007-06-25 17:27:27 +00:00
parent c0856a39bd
commit 6b0bafcafb
15 changed files with 210 additions and 10 deletions
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14
sysdeps/common/default.c
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@@ -368,3 +368,17 @@ glibtop_get_proc_wd(glibtop_proc_wd *buf, pid_t pid)
}
/**
* glibtop_get_proc_affinity:
* @buf:
* @pid: Process id to get the affinity
*
* Get the processor affinity list for a process
*
* Returns: A list of processor ID of 'buf.number' elements.
*/
guint16 *
glibtop_get_proc_affinity(glibtop_proc_affinity *buf, pid_t pid)
{
return glibtop_get_proc_affinity_l(glibtop_global_server, buf, pid);
}

3
sysdeps/linux/Makefile.am
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@@ -8,7 +8,8 @@ libgtop_sysdeps_2_0_la_SOURCES = open.c close.c cpu.c mem.c swap.c \
proctime.c procmem.c procsignal.c prockernel.c \
procsegment.c procargs.c procmap.c siglist.c \
sysinfo.c netload.c ppp.c glibtop_private.c \
fsusage.c netlist.c procopenfiles.c procwd.c
fsusage.c netlist.c procopenfiles.c procwd.c \
procaffinity.c
libgtop_sysdeps_2_0_la_LIBADD = @GLIB_LIBS@

1
sysdeps/linux/glibtop_server.h
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@@ -43,6 +43,7 @@
#define GLIBTOP_SUID_NETLOAD 0
#define GLIBTOP_SUID_NETLIST 0
#define GLIBTOP_SUID_PROC_WD 0
#define GLIBTOP_SUID_PROC_AFFINITY 0
#define GLIBTOP_SUID_PPP 0
#define GLIBTOP_SUID_PROC_FILE 0

69
sysdeps/linux/procaffinity.c Normal file
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@@ -0,0 +1,69 @@
/* Copyright (C) 2007 Benoît Dejean
This file is part of LibGTop 2.
LibGTop 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.
LibGTop 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.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <glibtop/procaffinity.h>
#include <glibtop/error.h>
#include <glibtop_private.h>
#include <sched.h>
void
_glibtop_init_proc_affinity_s(glibtop *server)
{
server->sysdeps.proc_affinity =
(1 << GLIBTOP_PROC_AFFINITY_NUMBER) |
(1 << GLIBTOP_PROC_AFFINITY_ALL);
}
guint16 *
glibtop_get_proc_affinity_s(glibtop *server, glibtop_proc_affinity *buf, pid_t pid)
{
cpu_set_t set;
size_t i;
GArray* cpus;
memset(buf, 0, sizeof *buf);
if (sched_getaffinity(pid, sizeof set, &set) == -1) {
glibtop_error_r(server, "sched_getaffinity failed");
return NULL;
}
cpus = g_array_new(FALSE, FALSE, sizeof(guint16));
for (i = 0; i < MIN(CPU_SETSIZE, (size_t)(server->ncpu + 1)); i++) {
if (CPU_ISSET(i, &set)) {
guint16 n = i;
g_array_append_val(cpus, n);
}
}
buf->number = cpus->len;
buf->all = (cpus->len == (size_t)(server->ncpu + 1));
buf->flags = (1 << GLIBTOP_PROC_AFFINITY_NUMBER)
| (1 << GLIBTOP_PROC_AFFINITY_ALL);
return (guint16*) g_array_free(cpus, FALSE);
}