projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d54eed1a | 1 | /* Determine various system internal values, Linux/Alpha version. |
| d4697bc9 | 2 | Copyright (C) 1999-2014 Free Software Foundation, Inc. |
| d54eed1a UD |
3 | This file is part of the GNU C Library. |
| 4 | Contributed by Andreas Schwab <schwab@suse.de> | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 3214b89b AJ |
7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| d54eed1a UD |
10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3214b89b | 14 | Lesser General Public License for more details. |
| d54eed1a | 15 | |
| 3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| d54eed1a UD |
19 | |
| 20 | ||
| 21 | /* We need to define a special parser for /proc/cpuinfo. */ | |
| c1592c25 | 22 | #define GET_NPROCS_PARSER(FD, BUFFER, CP, RE, BUFFER_END, RESULT) \ |
| bad8d32c UD |
23 | do \ |
| 24 | { \ | |
| 25 | /* Find the line that contains the information about the number of \ | |
| 26 | active cpus. We don't have to fear extremely long lines since \ | |
| 27 | the kernel will not generate them. 8192 bytes are really enough. \ | |
| 28 | If there is no "CPUs ..." line then we are on a UP system. */ \ | |
| c1592c25 | 29 | char *l; \ |
| bad8d32c | 30 | (RESULT) = 1; \ |
| c1592c25 | 31 | while ((l = next_line (FD, BUFFER, &CP, &RE, BUFFER_END)) != NULL) \ |
| 4adec71e UD |
32 | if ((sscanf (BUFFER, "cpus active : %d", &(RESULT)) == 1) \ |
| 33 | || (sscanf (BUFFER, "CPUs probed %*d active %d", \ | |
| 34 | &(RESULT)) == 1)) \ | |
| bad8d32c UD |
35 | break; \ |
| 36 | } \ | |
| d54eed1a UD |
37 | while (0) |
| 38 | ||
| 39 | ||
| 40 | /* On the Alpha we can distinguish between the number of configured and | |
| 41 | active cpus. */ | |
| bad8d32c UD |
42 | #define GET_NPROCS_CONF_PARSER(FP, BUFFER, RESULT) \ |
| 43 | do \ | |
| 44 | { \ | |
| 45 | /* Find the line that contains the information about the number of \ | |
| 46 | probed cpus. We don't have to fear extremely long lines since \ | |
| 47 | the kernel will not generate them. 8192 bytes are really enough. \ | |
| 48 | If there is no "CPUs ..." line then we are on a UP system. */ \ | |
| 49 | (RESULT) = 1; \ | |
| 50 | while (fgets_unlocked ((BUFFER), sizeof (BUFFER), (FP)) != NULL) \ | |
| 4adec71e UD |
51 | if ((sscanf (buffer, "cpus detected : %d", &(RESULT)) == 1) \ |
| 52 | || (sscanf (buffer, "CPUs probed %d", &(RESULT)) == 1)) \ | |
| bad8d32c UD |
53 | break; \ |
| 54 | } \ | |
| d54eed1a UD |
55 | while (0) |
| 56 | ||
| 57 | #include <sysdeps/unix/sysv/linux/getsysstats.c> |