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/* Determine various system internal values, Linux/Alpha version.
Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Schwab <schwab@suse.de>
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, see
<https://www.gnu.org/licenses/>. */
/* We need to define a special parser for /proc/cpuinfo. */
#define GET_NPROCS_PARSER(FD, BUFFER, CP, RE, BUFFER_END, RESULT) \
do \
{ \
/* Find the line that contains the information about the number of \
active cpus. We don't have to fear extremely long lines since \
the kernel will not generate them. 8192 bytes are really enough. \
If there is no "CPUs ..." line then we are on a UP system. */ \
char *l; \
(RESULT) = 1; \
while ((l = next_line (FD, BUFFER, &CP, &RE, BUFFER_END)) != NULL) \
if ((sscanf (BUFFER, "cpus active : %d", &(RESULT)) == 1) \
|| (sscanf (BUFFER, "CPUs probed %*d active %d", \
&(RESULT)) == 1)) \
break; \
} \
while (0)
/* On the Alpha we can distinguish between the number of configured and
active cpus. */
#define GET_NPROCS_CONF_PARSER(FP, BUFFER, RESULT) \
do \
{ \
/* Find the line that contains the information about the number of \
probed cpus. We don't have to fear extremely long lines since \
the kernel will not generate them. 8192 bytes are really enough. \
If there is no "CPUs ..." line then we are on a UP system. */ \
(RESULT) = 1; \
while (__fgets_unlocked ((BUFFER), sizeof (BUFFER), (FP)) != NULL) \
if ((sscanf (buffer, "cpus detected : %d", &(RESULT)) == 1) \
|| (sscanf (buffer, "CPUs probed %d", &(RESULT)) == 1)) \
break; \
} \
while (0)
#include <sysdeps/unix/sysv/linux/getsysstats.c>
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