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Editing: struct_rusage.h
/* Define struct rusage. Copyright (C) 1994-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #ifndef __rusage_defined #define __rusage_defined 1 #include <bits/types.h> #include <bits/types/struct_timeval.h> /* Structure which says how much of each resource has been used. If the system does not keep track of a particular value, the struct field is always zero. */ /* The purpose of all the unions is to have the kernel-compatible layout while keeping the API type as 'long int', and among machines where __syscall_slong_t is not 'long int', this only does the right thing for little-endian ones, like x32. */ struct rusage { /* Total amount of user time used. */ struct timeval ru_utime; /* Total amount of system time used. */ struct timeval ru_stime; /* Maximum resident set size (in kilobytes). */ __extension__ union { long int ru_maxrss; __syscall_slong_t __ru_maxrss_word; }; /* Amount of sharing of text segment memory with other processes (kilobyte-seconds). */ __extension__ union { long int ru_ixrss; __syscall_slong_t __ru_ixrss_word; }; /* Amount of data segment memory used (kilobyte-seconds). */ __extension__ union { long int ru_idrss; __syscall_slong_t __ru_idrss_word; }; /* Amount of stack memory used (kilobyte-seconds). */ __extension__ union { long int ru_isrss; __syscall_slong_t __ru_isrss_word; }; /* Number of soft page faults (i.e. those serviced by reclaiming a page from the list of pages awaiting reallocation. */ __extension__ union { long int ru_minflt; __syscall_slong_t __ru_minflt_word; }; /* Number of hard page faults (i.e. those that required I/O). */ __extension__ union { long int ru_majflt; __syscall_slong_t __ru_majflt_word; }; /* Number of times a process was swapped out of physical memory. */ __extension__ union { long int ru_nswap; __syscall_slong_t __ru_nswap_word; }; /* Number of input operations via the file system. Note: This and `ru_oublock' do not include operations with the cache. */ __extension__ union { long int ru_inblock; __syscall_slong_t __ru_inblock_word; }; /* Number of output operations via the file system. */ __extension__ union { long int ru_oublock; __syscall_slong_t __ru_oublock_word; }; /* Number of IPC messages sent. */ __extension__ union { long int ru_msgsnd; __syscall_slong_t __ru_msgsnd_word; }; /* Number of IPC messages received. */ __extension__ union { long int ru_msgrcv; __syscall_slong_t __ru_msgrcv_word; }; /* Number of signals delivered. */ __extension__ union { long int ru_nsignals; __syscall_slong_t __ru_nsignals_word; }; /* Number of voluntary context switches, i.e. because the process gave up the process before it had to (usually to wait for some resource to be available). */ __extension__ union { long int ru_nvcsw; __syscall_slong_t __ru_nvcsw_word; }; /* Number of involuntary context switches, i.e. a higher priority process became runnable or the current process used up its time slice. */ __extension__ union { long int ru_nivcsw; __syscall_slong_t __ru_nivcsw_word; }; }; #endif
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