386BSD 0.1 development

Work on file usr/src/sys.386bsd/sys/resourcevar.h

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/sys.386bsd/sys/resourcevar.h b/usr/src/sys.386bsd/sys/resourcevar.h
new file mode 100644 (file)
index 0000000..5148af2
--- /dev/null
+++ b/usr/src/sys.386bsd/sys/resourcevar.h
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+/*
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)resourcevar.h       7.1 (Berkeley) 5/9/91
+ */
+
+#ifndef        _RESOURCEVAR_H_         /* tmp for user.h */
+#define        _RESOURCEVAR_H_
+
+/*
+ * Kernel per-process accounting / statistics
+ * (not necessarily resident except when running).
+ */
+struct pstats {
+#define        pstat_startzero p_ru
+       struct  rusage p_ru;            /* stats for this proc */
+       struct  rusage p_cru;           /* sum of stats for reaped children */
+#define        pstat_endzero   pstat_startcopy
+
+#define        pstat_startcopy p_timer
+       struct  itimerval p_timer[3];   /* virtual-time timers */
+
+       struct uprof {                  /* profile arguments */
+               short   *pr_base;       /* buffer base */
+               unsigned pr_size;       /* buffer size */
+               unsigned pr_off;        /* pc offset */
+               unsigned pr_scale;      /* pc scaling */
+       } p_prof;
+#define        pstat_endcopy   p_start
+       struct  timeval p_start;        /* starting time */
+};
+
+void addupc(int, struct uprof *, int); /* process profiling */ 
+
+/*
+ * Kernel shareable process resource limits.  Because this structure
+ * is moderately large but changes infrequently, it is normally
+ * shared copy-on-write after forks.  If a group of processes
+ * ("threads") share modifications, the PL_SHAREMOD flag is set,
+ * and a copy must be made for the child of a new fork that isn't
+ * sharing modifications to the limits.
+ */
+struct plimit {
+       struct  rlimit pl_rlimit[RLIM_NLIMITS];
+       int     p_lflags;               /* below */
+       int     p_refcnt;               /* number of references */
+};
+
+/* pl_lflags: */
+#define        PL_SHAREMOD     0x01            /* modifications are shared */
+
+/* make copy of plimit structure */
+struct plimit *limcopy __P((struct plimit *lim));
+#endif /* !_RESOURCEVAR_H_ */