BSD 4_1_snap development

Work on file usr/src/cmd/csh/sh.proc.h

Synthesized-from: CSRG/cd1/4.1.snap

diff --git a/usr/src/cmd/csh/sh.proc.h b/usr/src/cmd/csh/sh.proc.h
new file mode 100644 (file)
index 0000000..80b2eaf
--- /dev/null
+++ b/usr/src/cmd/csh/sh.proc.h
@@ -0,0 +1,84 @@
+/* sh.proc.h 4.1 10/9/80 */
+
+/*
+ * C shell - process structure declarations
+ */
+
+/*
+ * 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 */
+       char    p_index;                /* shorthand job index */
+       short   p_pid;
+       short   p_jobid;                /* pid of job leader */
+       /* if a job is stopped/background p_jobid gives its pgrp */
+       time_t  p_btime;                /* begin time */
+       time_t  p_etime;                /* end time */
+       long    p_stime;                /* system cpu time */
+       long    p_utime;                /* user cpu time */
+#ifdef VMUNIX
+       struct  vtimes p_vtimes;
+#endif
+       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        PNULL           (struct process *)0
+#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 */
+
+short  pmaxindex;                      /* current maximum job index */
+
+bool   timesdone;                      /* shtimes buffer full ? */
+
+int    psigint();
+struct process *pgetcurr();
+struct process *plookup();
+struct process *pfind();