diff options
Diffstat (limited to 'sysdeps/generic/resourcebits.h')
| -rw-r--r-- | sysdeps/generic/resourcebits.h | 87 |
1 files changed, 85 insertions, 2 deletions
diff --git a/sysdeps/generic/resourcebits.h b/sysdeps/generic/resourcebits.h index 74cbcb0e97..01dbb8f952 100644 --- a/sysdeps/generic/resourcebits.h +++ b/sysdeps/generic/resourcebits.h @@ -1,4 +1,4 @@ -/* Bit values for resource limits. 4.4 BSD/generic GNU version. +/* Bit values & structures for resource limits. 4.4 BSD/generic GNU version. Copyright (C) 1994, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -59,5 +59,88 @@ enum __rlimit_resource #define RLIMIT_NOFILE RLIMIT_NOFILE RLIMIT_NLIMITS, /* Number of limit flavors. */ - RLIM_NLIMITS = RLIMIT_NLIMITS /* Traditional name for same. */ + RLIM_NLIMITS = RLIMIT_NLIMITS, /* Traditional name for same. */ + + RLIM_INFINITY = 0x7fffffff /* Value to indicate that there is no limit. */ +#define RLIM_INFINITY RLIM_INFINITY + }; + +struct rlimit + { + /* The current (soft) limit. */ + int rlim_cur; + /* The hard limit. */ + int rlim_max; + }; + +/* Whose usage statistics do you want? */ +enum __rusage_who +/* The macro definitions are necessary because some programs want + to test for operating system features with #ifdef RUSAGE_SELF. + In ISO C the reflexive definition is a no-op. */ + { + /* The calling process. */ + RUSAGE_SELF = 0, +#define RUSAGE_SELF RUSAGE_SELF + /* All of its terminated child processes. */ + RUSAGE_CHILDREN = -1 +#define RUSAGE_CHILDREN RUSAGE_CHILDREN + }; + +#include <sys/time.h> /* For `struct timeval'. */ + +/* Structure which says how much of each resource has been used. */ +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). */ + long int ru_maxrss; + /* Amount of sharing of text segment memory + with other processes (kilobyte-seconds). */ + long int ru_ixrss; + /* Amount of data segment memory used (kilobyte-seconds). */ + long int ru_idrss; + /* Amount of stack memory used (kilobyte-seconds). */ + long int ru_isrss; + /* Number of soft page faults (i.e. those serviced by reclaiming + a page from the list of pages awaiting reallocation. */ + long int ru_minflt; + /* Number of hard page faults (i.e. those that required I/O). */ + long int ru_majflt; + /* Number of times a process was swapped out of physical memory. */ + long int ru_nswap; + /* Number of input operations via the file system. Note: This + and `ru_oublock' do not include operations with the cache. */ + long int ru_inblock; + /* Number of output operations via the file system. */ + long int ru_oublock; + /* Number of IPC messages sent. */ + long int ru_msgsnd; + /* Number of IPC messages received. */ + long int ru_msgrcv; + /* Number of signals delivered. */ + long int ru_nsignals; + /* 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). */ + long int ru_nvcsw; + /* Number of involuntary context switches, i.e. a higher priority process + became runnable or the current process used up its time slice. */ + long int ru_nivcsw; + }; + +/* Priority limits. */ +#define PRIO_MIN -20 /* Minimum priority a process can have. */ +#define PRIO_MAX 20 /* Maximum priority a process can have. */ + +/* The type of the WHICH argument to `getpriority' and `setpriority', + indicating what flavor of entity the WHO argument specifies. */ +enum __priority_which + { + PRIO_PROCESS = 0, /* WHO is a process ID. */ + PRIO_PGRP = 1, /* WHO is a process group ID. */ + PRIO_USER = 2 /* WHO is a user ID. */ }; |