1 /* Copyright (C) 1992,94,1996-2000,2002,2004 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _SYS_RESOURCE_H 20 #define _SYS_RESOURCE_H 1 21 22 #include <features.h> 23 24 /* Get the system-dependent definitions of structures and bit values. */ 25 #include <bits/resource.h> 26 27 #ifndef __id_t_defined 28 typedef __id_t id_t; 29 # define __id_t_defined 30 #endif 31 32 __BEGIN_DECLS 33 34 /* The X/Open standard defines that all the functions below must use 35 `int' as the type for the first argument. When we are compiling with 36 GNU extensions we change this slightly to provide better error 37 checking. */ 38 #if defined __USE_GNU && !defined __cplusplus 39 typedef enum __rlimit_resource __rlimit_resource_t; 40 typedef enum __rusage_who __rusage_who_t; 41 typedef enum __priority_which __priority_which_t; 42 #else 43 typedef int __rlimit_resource_t; 44 typedef int __rusage_who_t; 45 typedef int __priority_which_t; 46 #endif 47 48 /* Put the soft and hard limits for RESOURCE in *RLIMITS. 49 Returns 0 if successful, -1 if not (and sets errno). */ 50 #ifndef __USE_FILE_OFFSET64 51 extern int getrlimit (__rlimit_resource_t __resource, 52 struct rlimit *__rlimits) __THROW; 53 #else 54 # ifdef __REDIRECT_NTH 55 extern int __REDIRECT_NTH (getrlimit, (__rlimit_resource_t __resource, 56 struct rlimit *__rlimits), getrlimit64); 57 # else 58 # define getrlimit getrlimit64 59 # endif 60 #endif 61 #ifdef __USE_LARGEFILE64 62 extern int getrlimit64 (__rlimit_resource_t __resource, 63 struct rlimit64 *__rlimits) __THROW; 64 #endif 65 66 /* Set the soft and hard limits for RESOURCE to *RLIMITS. 67 Only the super-user can increase hard limits. 68 Return 0 if successful, -1 if not (and sets errno). */ 69 #ifndef __USE_FILE_OFFSET64 70 extern int setrlimit (__rlimit_resource_t __resource, 71 __const struct rlimit *__rlimits) __THROW; 72 #else 73 # ifdef __REDIRECT_NTH 74 extern int __REDIRECT_NTH (setrlimit, (__rlimit_resource_t __resource, 75 __const struct rlimit *__rlimits), 76 setrlimit64); 77 # else 78 # define setrlimit setrlimit64 79 # endif 80 #endif 81 #ifdef __USE_LARGEFILE64 82 extern int setrlimit64 (__rlimit_resource_t __resource, 83 __const struct rlimit64 *__rlimits) __THROW; 84 #endif 85 86 /* Return resource usage information on process indicated by WHO 87 and put it in *USAGE. Returns 0 for success, -1 for failure. */ 88 extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW; 89 90 /* Return the highest priority of any process specified by WHICH and WHO 91 (see above); if WHO is zero, the current process, process group, or user 92 (as specified by WHO) is used. A lower priority number means higher 93 priority. Priorities range from PRIO_MIN to PRIO_MAX (above). */ 94 extern int getpriority (__priority_which_t __which, id_t __who) __THROW; 95 96 /* Set the priority of all processes specified by WHICH and WHO (see above) 97 to PRIO. Returns 0 on success, -1 on errors. */ 98 extern int setpriority (__priority_which_t __which, id_t __who, int __prio) 99 __THROW; 100 101 __END_DECLS 102 103 #endif /* sys/resource.h */ 104
