386BSD 0.1 development

Work on file usr/src/bin/csh/proc.h

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

diff --git a/usr/src/bin/csh/proc.h b/usr/src/bin/csh/proc.h
new file mode 100644 (file)
index 0000000..82531f2
--- /dev/null
+++ b/usr/src/bin/csh/proc.h
@@ -0,0 +1,101 @@
+/*-
+ * Copyright (c) 1980, 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.
+ *
+ *     @(#)proc.h      5.6 (Berkeley) 6/25/91
+ */
+
+/*
+ * Structure for each process the shell knows about:
+ *     allocated and filled by pcreate.
+ *     flushed by pflush; freeing always happens at top level
+ *         so the interrupt level has less to worry about.
+ *     processes are related to "friends" when in a pipeline;
+ *         p_friends links makes a circular list of such jobs
+ */
+struct process {
+    struct process *p_next;    /* next in global "proclist" */
+    struct process *p_friends; /* next in job list (or self) */
+    struct directory *p_cwd;   /* cwd of the job (only in head) */
+    short unsigned p_flags;    /* various job status flags */
+    char    p_reason;          /* reason for entering this state */
+    int     p_index;           /* shorthand job index */
+    int     p_pid;
+    int     p_jobid;           /* pid of job leader */
+    /* if a job is stopped/background p_jobid gives its pgrp */
+    struct timeval p_btime;    /* begin time */
+    struct timeval p_etime;    /* end time */
+    struct rusage p_rusage;
+    Char   *p_command;         /* first PMAXLEN chars of command */
+};
+
+/* flag values for p_flags */
+#define        PRUNNING        (1<<0)  /* running */
+#define        PSTOPPED        (1<<1)  /* stopped */
+#define        PNEXITED        (1<<2)  /* normally exited */
+#define        PAEXITED        (1<<3)  /* abnormally exited */
+#define        PSIGNALED       (1<<4)  /* terminated by a signal != SIGINT */
+
+#define        PALLSTATES      (PRUNNING|PSTOPPED|PNEXITED|PAEXITED|PSIGNALED|PINTERRUPTED)
+#define        PNOTIFY         (1<<5)  /* notify async when done */
+#define        PTIME           (1<<6)  /* job times should be printed */
+#define        PAWAITED        (1<<7)  /* top level is waiting for it */
+#define        PFOREGND        (1<<8)  /* started in shells pgrp */
+#define        PDUMPED         (1<<9)  /* process dumped core */
+#define        PDIAG           (1<<10) /* diagnostic output also piped out */
+#define        PPOU            (1<<11) /* piped output */
+#define        PREPORTED       (1<<12) /* status has been reported */
+#define        PINTERRUPTED    (1<<13) /* job stopped via interrupt signal */
+#define        PPTIME          (1<<14) /* time individual process */
+#define        PNEEDNOTE       (1<<15) /* notify as soon as practical */
+
+#define        PMAXLEN         80
+
+/* defines for arguments to pprint */
+#define        NUMBER          01
+#define        NAME            02
+#define        REASON          04
+#define        AMPERSAND       010
+#define        FANCY           020
+#define        SHELLDIR        040     /* print shell's dir if not the same */
+#define        JOBDIR          0100    /* print job's dir if not the same */
+#define        AREASON         0200
+
+struct process proclist;       /* list head of all processes */
+bool    pnoprocesses;          /* pchild found nothing to wait for */
+
+struct process *pholdjob;      /* one level stack of current jobs */
+
+struct process *pcurrjob;      /* current job */
+struct process *pcurrent;      /* current job in table */
+struct process *pprevious;     /* previous job in table */
+
+int    pmaxindex;              /* current maximum job index */