diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/getsysstats.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/getsysstats.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/getsysstats.c b/sysdeps/unix/sysv/linux/alpha/getsysstats.c new file mode 100644 index 0000000000..0b39d8951d --- /dev/null +++ b/sysdeps/unix/sysv/linux/alpha/getsysstats.c @@ -0,0 +1,57 @@ +/* Determine various system internal values, Linux/Alpha version. + Copyright (C) 1999-2014 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 + <http://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> |