BSD 4_3 development

Work on file usr/contrib/emacs/src/process.h

Synthesized-from: CSRG/cd1/4.3

diff --git a/usr/contrib/emacs/src/process.h b/usr/contrib/emacs/src/process.h
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+/* Definitions for asynchronous process control in GNU Emacs.
+   Copyright (C) 1985 Richard M. Stallman.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY.  No author or distributor
+accepts responsibility to anyone for the consequences of using it
+or for whether it serves any particular purpose or works at all,
+unless he says so in writing.  Refer to the GNU Emacs General Public
+License for full details.
+
+Everyone is granted permission to copy, modify and redistribute
+GNU Emacs, but only under the conditions described in the
+GNU Emacs General Public License.   A copy of this license is
+supposed to have been given to you along with GNU Emacs so you
+can know your rights and responsibilities.  It should be in a
+file named COPYING.  Among other things, the copyright notice
+and this notice must be preserved on all copies.  */
+
+
+/*
+ * Structure records pertinent information about open channels.
+ * There is one channel associated with each process.
+ */
+
+struct Lisp_Process
+  {
+    int size;
+    struct Lisp_Vector *v_next;
+    /* Descriptor by which we read from this process */
+    Lisp_Object infd;
+    /* Descriptor by which we write to this process */
+    Lisp_Object outfd;
+    /* Name of this process */
+    Lisp_Object name;
+    /* List of command arguments that this process was run with */
+    Lisp_Object command;
+    /* (funcall FILTER PROC STRING)  (if FILTER is non-nil)
+       to dispose of a bunch of chars from the process all at once */
+    Lisp_Object filter;
+    /* (funcall SENTINEL PROCESS) when process state changes */
+    Lisp_Object sentinel;
+    /* Buffer that output is going to */
+    Lisp_Object buffer;
+    /* Number of this process */
+    Lisp_Object pid;
+    /* Non-nil if this is really a command channel */
+    Lisp_Object command_channel_p;
+    /* Non-nil if this is really a child process */
+    Lisp_Object childp;
+    /* The state of the process, expressed by flags
+       (RUNNING, STOPPED, etc.)  */
+    Lisp_Object flags;
+    /* # of signal that the process got, that stopped it,
+       or code it exited with.  */
+    Lisp_Object reason;
+    /* Marker set to end of last buffer-inserted output from this process */
+    Lisp_Object mark;
+    /* Non-nil means kill silently if Emacs is exited.  */
+    Lisp_Object kill_without_query;
+};
+
+/* Process status, found in the flags component */
+#define PROC_STATUS 3
+
+/* Values of process status */
+#define RUNNING        0       /* process is running */
+#define STOPPED        1       /* process has stopped */
+#define EXITED 2       /* process has exited */
+#define SIGNALED 3     /* process was signalled */
+
+/* Additional bits in the flags component */
+#define CHANGED 4      /* This bit is set when state changes;
+                          cleared when a change message has been given */
+#define COREDUMPED 8   /* This bit is set if core was dumped */
+
+
+#define ChannelMask(n) (1<<(n))