1 /* Copyright (C) 1991, 1992, 1996, 1999 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, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #ifndef _SYS_VTIMES_H 19 #define _SYS_VTIMES_H 1 20 21 #include <features.h> 22 23 __BEGIN_DECLS 24 25 /* This interface is obsolete; use `getrusage' instead. */ 26 27 /* Granularity of the `vm_utime' and `vm_stime' fields of a `struct vtimes'. 28 (This is the frequency of the machine's power supply, in Hz.) */ 29 #define VTIMES_UNITS_PER_SECOND 60 30 31 struct vtimes 32 { 33 /* User time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ 34 int vm_utime; 35 /* System time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ 36 int vm_stime; 37 38 /* Amount of data and stack memory used (kilobyte-seconds). */ 39 unsigned int vm_idsrss; 40 /* Amount of text memory used (kilobyte-seconds). */ 41 unsigned int vm_ixrss; 42 /* Maximum resident set size (text, data, and stack) (kilobytes). */ 43 int vm_maxrss; 44 45 /* Number of hard page faults (i.e. those that required I/O). */ 46 int vm_majflt; 47 /* Number of soft page faults (i.e. those serviced by reclaiming 48 a page from the list of pages awaiting reallocation. */ 49 int vm_minflt; 50 51 /* Number of times a process was swapped out of physical memory. */ 52 int vm_nswap; 53 54 /* Number of input operations via the file system. Note: This 55 and `ru_oublock' do not include operations with the cache. */ 56 int vm_inblk; 57 /* Number of output operations via the file system. */ 58 int vm_oublk; 59 }; 60 61 /* If CURRENT is not NULL, write statistics for the current process into 62 *CURRENT. If CHILD is not NULL, write statistics for all terminated child 63 processes into *CHILD. Returns 0 for success, -1 for failure. */ 64 extern int vtimes (struct vtimes * __current, struct vtimes * __child) __THROW; 65 66 __END_DECLS 67 68 #endif /* sys/vtimes.h */ 69