projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 554066b8 | 1 | /* Minimum guaranteed maximum values for system limits. Linux version. |
| d4697bc9 | 2 | Copyright (C) 1993-2014 Free Software Foundation, Inc. |
| 554066b8 MS |
3 | |
| 4 | This file is part of the GNU C Library. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Lesser General Public License as | |
| 8 | published by the Free Software Foundation; either version 2.1 of the | |
| 9 | License, or (at your option) any later version. | |
| 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 | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| 17 | License along with the GNU C Library. If not, see | |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 19 | ||
| 20 | /* The kernel header pollutes the namespace with the NR_OPEN symbol | |
| 21 | and defines LINK_MAX although filesystems have different maxima. A | |
| 22 | similar thing is true for OPEN_MAX: the limit can be changed at | |
| 23 | runtime and therefore the macro must not be defined. Remove this | |
| 24 | after including the header if necessary. */ | |
| 25 | #ifndef NR_OPEN | |
| 26 | # define __undef_NR_OPEN | |
| 27 | #endif | |
| 28 | #ifndef LINK_MAX | |
| 29 | # define __undef_LINK_MAX | |
| 30 | #endif | |
| 31 | #ifndef OPEN_MAX | |
| 32 | # define __undef_OPEN_MAX | |
| 33 | #endif | |
| 34 | #ifndef ARG_MAX | |
| 35 | # define __undef_ARG_MAX | |
| 36 | #endif | |
| 37 | ||
| 38 | /* The kernel sources contain a file with all the needed information. */ | |
| 39 | #include <linux/limits.h> | |
| 40 | ||
| 41 | /* Have to remove NR_OPEN? */ | |
| 42 | #ifdef __undef_NR_OPEN | |
| 43 | # undef NR_OPEN | |
| 44 | # undef __undef_NR_OPEN | |
| 45 | #endif | |
| 46 | /* Have to remove LINK_MAX? */ | |
| 47 | #ifdef __undef_LINK_MAX | |
| 48 | # undef LINK_MAX | |
| 49 | # undef __undef_LINK_MAX | |
| 50 | #endif | |
| 51 | /* Have to remove OPEN_MAX? */ | |
| 52 | #ifdef __undef_OPEN_MAX | |
| 53 | # undef OPEN_MAX | |
| 54 | # undef __undef_OPEN_MAX | |
| 55 | #endif | |
| 56 | /* Have to remove ARG_MAX? */ | |
| 57 | #ifdef __undef_ARG_MAX | |
| 58 | # undef ARG_MAX | |
| 59 | # undef __undef_ARG_MAX | |
| 60 | #endif | |
| 61 | ||
| 62 | /* The number of data keys per process. */ | |
| 63 | #define _POSIX_THREAD_KEYS_MAX 128 | |
| 64 | /* This is the value this implementation supports. */ | |
| 65 | #define PTHREAD_KEYS_MAX 1024 | |
| 66 | ||
| 67 | /* Controlling the iterations of destructors for thread-specific data. */ | |
| 68 | #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 | |
| 69 | /* Number of iterations this implementation does. */ | |
| 70 | #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS | |
| 71 | ||
| 72 | /* The number of threads per process. */ | |
| 73 | #define _POSIX_THREAD_THREADS_MAX 64 | |
| 74 | /* We have no predefined limit on the number of threads. */ | |
| 75 | #undef PTHREAD_THREADS_MAX | |
| 76 | ||
| 77 | /* Maximum amount by which a process can descrease its asynchronous I/O | |
| 78 | priority level. */ | |
| 79 | #define AIO_PRIO_DELTA_MAX 20 | |
| 80 | ||
| 81 | /* Minimum size for a thread. At least two pages for systems with 64k | |
| 82 | pages. */ | |
| 83 | #define PTHREAD_STACK_MIN 131072 | |
| 84 | ||
| 85 | /* Maximum number of timer expiration overruns. */ | |
| 86 | #define DELAYTIMER_MAX 2147483647 | |
| 87 | ||
| 88 | /* Maximum tty name length. */ | |
| 89 | #define TTY_NAME_MAX 32 | |
| 90 | ||
| 91 | /* Maximum login name length. This is arbitrary. */ | |
| 92 | #define LOGIN_NAME_MAX 256 | |
| 93 | ||
| 94 | /* Maximum host name length. */ | |
| 95 | #define HOST_NAME_MAX 64 | |
| 96 | ||
| 97 | /* Maximum message queue priority level. */ | |
| 98 | #define MQ_PRIO_MAX 32768 | |
| 99 | ||
| 100 | /* Maximum value the semaphore can have. */ | |
| 101 | #define SEM_VALUE_MAX (2147483647) |