Initial revision

2 files changed, 238 insertions, 0 deletions

diff --git a/resource/sys/resource.h b/resource/sys/resource.h
new file mode 100644
index 0000000000..884b57c587
--- /dev/null
+++ b/resource/sys/resource.h
@@ -0,0 +1,173 @@
+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_SYS_RESOURCE_H
+
+#define	_SYS_RESOURCE_H	1
+#include <features.h>
+
+
+#include <gnu/time.h>
+
+/* Kinds of resource limit.  */
+enum __rlimit_resource
+  {
+    /* Per-process CPU limit, in seconds.  */
+    RLIMIT_CPU,
+    /* Largest file that can be created, in bytes.  */
+    RLIMIT_FSIZE,
+    /* Maximum size of data segment, in bytes.  */
+    RLIMIT_DATA,
+    /* Maximum size of stack segment, in bytes.  */
+    RLIMIT_STACK,
+    /* Largest core file that can be created, in bytes.  */
+    RLIMIT_CORE,
+    /* Largest resident set size, in bytes.
+       This affects swapping; processes that are exceeding their
+       resident set size will be more likely to have physical memory
+       taken from them.  */
+    RLIMIT_RSS,
+
+    RLIM_NLIMITS
+  };
+
+struct rlimit
+  {
+    /* The current (soft) limit.  */
+    int rlim_cur;
+    /* The hard limit.  */
+    int rlim_max;
+  };
+
+/* Value used to indicate that there is no limit.  */
+#define RLIM_INFINITY 0x7fffffff
+
+/* Put the soft and hard limits for RESOURCE in *RLIMITS.
+   Returns 0 if successful, -1 if not (and sets errno).  */
+int EXFUN(getrlimit, (enum __rlimit_resource __resource,
+		      struct rlimit *__rlimits));
+
+/* Set the soft and hard limits for RESOURCE to *RLIMITS.
+   Only the super-user can increase hard limits.
+   Return 0 if successful, -1 if not (and sets errno).  */
+int EXFUN(setrlimit, (enum __rlimit_resource __resource,
+		      struct rlimit *__rlimits));
+
+
+/* Whose usage statistics do you want?  */
+enum __rusage_who
+  {
+    /* The calling process.  */
+    RUSAGE_SELF = 0,
+    /* All of its terminated child processes.  */
+    RUSAGE_CHILDREN = -1,
+  };
+
+/* 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).  */
+    int ru_maxrss;
+    /* Amount of sharing of text segment memory
+       with other processes (kilobyte-seconds).  */
+    int ru_ixrss;
+    /* Amount of data segment memory used (kilobyte-seconds).  */
+    int ru_idrss;
+    /* Amount of stack memory used (kilobyte-seconds).  */
+    int ru_isrss;
+    /* Number of soft page faults (i.e. those serviced by reclaiming
+       a page from the list of pages awaiting reallocation.  */
+    int ru_minflt;
+    /* Number of hard page faults (i.e. those that required I/O).  */
+    int ru_majflt;
+    /* Number of times a process was swapped out of physical memory.  */
+    int ru_nswap;
+    /* Number of input operations via the file system.  Note: This
+       and `ru_outblock' do not include operations with the cache.  */
+    int ru_inblock;
+    /* Number of output operations via the file system.  */
+    int ru_outblock;
+    /* Number of IPC messages sent.  */
+    int ru_msgsnd;
+    /* Number of IPC messages received.  */
+    int ru_msgrcv;
+    /* Number of signals delivered.  */
+    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).  */
+    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.  */
+    int ru_nivcsw;
+  };
+
+/* Return resource usage information on process indicated by WHO
+   and put it in *USAGE.  Returns 0 for success, -1 for failure.  */
+int EXFUN(__getrusage, (enum __rusage_who __who, struct rusage *__usage));
+int EXFUN(getrusage, (enum __rusage_who __who, struct rusage *__usage));
+
+#ifdef	__OPTIMIZE__
+#define	getrusage(who, usage)	__getrusage((who), (usage))
+#endif	/* Optimizing.  */
+
+/* Function depends on CMD:
+   1 = Return the limit on the size of a file, in units of 512 bytes.
+   2 = Set the limit on the size of a file to NEWLIMIT.  Only the
+       super-user can increase the limit.
+   3 = Return the maximum possible address of the data segment.
+   4 = Return the maximum number of files that the calling process can open.
+   Returns -1 on errors.  */
+long int EXFUN(__ulimit, (int __cmd, long int __newlimit));
+long int EXFUN(ulimit, (int __cmd, long int __newlimit));
+
+#ifdef	__OPTIMIZE__
+#define	ulimit(cmd, newlimit)	__ulimit((cmd), (newlimit))
+#endif	/* Optimizing.  */
+
+
+/* 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.  */
+  };
+
+/* Return the highest priority of any process specified by WHICH and WHO
+   (see above); if WHO is zero, the current process, process group, or user
+   (as specified by WHO) is used.  A lower priority number means higher
+   priority.  Priorities range from PRIO_MIN to PRIO_MAX (above).  */
+extern int EXFUN(getpriority, (enum __priority_which __which, int __who));
+
+/* Set the priority of all processes specified by WHICH and WHO (see above)
+   to PRIO.  Returns 0 on success, -1 on errors.  */
+extern int EXFUN(setpriority, (enum __priority_which __which, int __who,
+			       int __prio));
+
+
+#endif	/* resource.h  */
diff --git a/resource/sys/vtimes.h b/resource/sys/vtimes.h
new file mode 100644
index 0000000000..dd600d15c1
--- /dev/null
+++ b/resource/sys/vtimes.h
@@ -0,0 +1,65 @@
+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _SYS_VTIMES_H
+
+#define _SYS_VTIMES_H	1
+#include <features.h>
+
+/* This interface is obsolete; use `getrusage' instead.  */
+
+/* Granularity of the `vm_utime' and `vm_stime' fields of a `struct vtimes'.
+   (This is the frequency of the machine's power supply, in Hz.)  */
+#define	VTIMES_UNITS_PER_SECOND	60
+
+struct vtimes
+  {
+    /* User time used in units of 1/VTIMES_UNITS_PER_SECOND seconds.  */
+    int vm_utime;
+    /* System time used in units of 1/VTIMES_UNITS_PER_SECOND seconds.  */
+    int vm_stime;
+
+    /* Amount of data and stack memory used (kilobyte-seconds).  */
+    unsigned int vm_idsrss;
+    /* Amount of text memory used (kilobyte-seconds).  */
+    unsigned int vm_ixrss;
+    /* Maximum resident set size (text, data, and stack) (kilobytes).  */
+    int vm_maxrss;
+
+    /* Number of hard page faults (i.e. those that required I/O).  */
+    int vm_majflt;
+    /* Number of soft page faults (i.e. those serviced by reclaiming
+       a page from the list of pages awaiting reallocation.  */
+    int vm_minflt;
+
+    /* Number of times a process was swapped out of physical memory.  */
+    int vm_nswap;
+
+    /* Number of input operations via the file system.  Note: This
+       and `ru_outblock' do not include operations with the cache.  */
+    int vm_inblk;
+    /* Number of output operations via the file system.  */
+    int vm_outblk;
+  };
+
+/* If CURRENT is not NULL, write statistics for the current process into
+   *CURRENT.  If CHILD is not NULL, write statistics for all terminated child
+   processes into *CHILD.  Returns 0 for success, -1 for failure.  */
+int EXFUN(vtimes, (struct vtimes *__current, struct vtimes *__child));
+
+#endif	/* sys/vtimes.h  */