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, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _SYS_VTIMES_H 20 #define _SYS_VTIMES_H 1 21 22 #include <features.h> 23 24 __BEGIN_DECLS 25 26 /* This interface is obsolete; use `getrusage' instead. */ 27 28 /* Granularity of the `vm_utime' and `vm_stime' fields of a `struct vtimes'. 29 (This is the frequency of the machine's power supply, in Hz.) */ 30 #define VTIMES_UNITS_PER_SECOND 60 31 32 struct vtimes 33 { 34 /* User time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ 35 int vm_utime; 36 /* System time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */ 37 int vm_stime; 38 39 /* Amount of data and stack memory used (kilobyte-seconds). */ 40 unsigned int vm_idsrss; 41 /* Amount of text memory used (kilobyte-seconds). */ 42 unsigned int vm_ixrss; 43 /* Maximum resident set size (text, data, and stack) (kilobytes). */ 44 int vm_maxrss; 45 46 /* Number of hard page faults (i.e. those that required I/O). */ 47 int vm_majflt; 48 /* Number of soft page faults (i.e. those serviced by reclaiming 49 a page from the list of pages awaiting reallocation. */ 50 int vm_minflt; 51 52 /* Number of times a process was swapped out of physical memory. */ 53 int vm_nswap; 54 55 /* Number of input operations via the file system. Note: This 56 and `ru_oublock' do not include operations with the cache. */ 57 int vm_inblk; 58 /* Number of output operations via the file system. */ 59 int vm_oublk; 60 }; 61 62 /* If CURRENT is not NULL, write statistics for the current process into 63 *CURRENT. If CHILD is not NULL, write statistics for all terminated child 64 processes into *CHILD. Returns 0 for success, -1 for failure. */ 65 extern int vtimes (struct vtimes * __current, struct vtimes * __child) __THROW; 66 67 __END_DECLS 68 69 #endif /* sys/vtimes.h */ 70