#include "systty.h"
#include "syswait.h"
-Lisp_Object Qprocessp;
+Lisp_Object Qprocessp, Qprocess_live_p;
/* Process methods */
struct process_methods the_process_methods;
/* Qrun => Qopen, Qexit => Qclosed for "network connection" processes */
Lisp_Object Qopen, Qclosed;
/* Protocol families */
-Lisp_Object Qtcpip;
+Lisp_Object Qtcp, Qudp;
#ifdef HAVE_MULTICAST
Lisp_Object Qmulticast; /* Will be used for occasional warnings */
\f
static Lisp_Object
-mark_process (Lisp_Object obj, void (*markobj) (Lisp_Object))
-{
- struct Lisp_Process *proc = XPROCESS (obj);
- MAYBE_PROCMETH (mark_process_data, (proc, markobj));
- markobj (proc->name);
- markobj (proc->command);
- markobj (proc->filter);
- markobj (proc->sentinel);
- markobj (proc->buffer);
- markobj (proc->mark);
- markobj (proc->pid);
- markobj (proc->pipe_instream);
- markobj (proc->pipe_outstream);
+mark_process (Lisp_Object obj)
+{
+ Lisp_Process *proc = XPROCESS (obj);
+ MAYBE_PROCMETH (mark_process_data, (proc));
+ mark_object (proc->name);
+ mark_object (proc->command);
+ mark_object (proc->filter);
+ mark_object (proc->sentinel);
+ mark_object (proc->buffer);
+ mark_object (proc->mark);
+ mark_object (proc->pid);
+ mark_object (proc->pipe_instream);
+ mark_object (proc->pipe_outstream);
#ifdef FILE_CODING
- markobj (proc->coding_instream);
- markobj (proc->coding_outstream);
+ mark_object (proc->coding_instream);
+ mark_object (proc->coding_outstream);
#endif
return proc->status_symbol;
}
static void
print_process (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
{
- struct Lisp_Process *proc = XPROCESS (obj);
+ Lisp_Process *proc = XPROCESS (obj);
if (print_readably)
error ("printing unreadable object #<process %s>",
else
{
int netp = network_connection_p (obj);
- write_c_string (((netp) ? GETTEXT ("#<network connection ") :
+ write_c_string ((netp ? GETTEXT ("#<network connection ") :
GETTEXT ("#<process ")), printcharfun);
print_internal (proc->name, printcharfun, 1);
- write_c_string (((netp) ? " " : " pid "), printcharfun);
+ write_c_string ((netp ? " " : " pid "), printcharfun);
print_internal (proc->pid, printcharfun, 1);
write_c_string (" state:", printcharfun);
print_internal (proc->status_symbol, printcharfun, 1);
}
#ifdef HAVE_WINDOW_SYSTEM
-extern void debug_process_finalization (struct Lisp_Process *p);
+extern void debug_process_finalization (Lisp_Process *p);
#endif /* HAVE_WINDOW_SYSTEM */
static void
{
/* #### this probably needs to be tied into the tty event loop */
/* #### when there is one */
- struct Lisp_Process *p = (struct Lisp_Process *) header;
+ Lisp_Process *p = (Lisp_Process *) header;
#ifdef HAVE_WINDOW_SYSTEM
if (!for_disksave)
{
DEFINE_LRECORD_IMPLEMENTATION ("process", process,
mark_process, print_process, finalize_process,
- 0, 0, struct Lisp_Process);
+ 0, 0, 0, Lisp_Process);
\f
/************************************************************************/
/* basic process accessors */
directly to the child process, rather than en/decoding FILE_CODING
streams */
void
-get_process_streams (struct Lisp_Process *p,
- Lisp_Object *instr, Lisp_Object *outstr)
+get_process_streams (Lisp_Process *p, Lisp_Object *instr, Lisp_Object *outstr)
{
assert (p);
assert (NILP (p->pipe_instream) || LSTREAMP(p->pipe_instream));
*outstr = p->pipe_outstream;
}
-struct Lisp_Process *
+Lisp_Process *
get_process_from_usid (USID usid)
{
CONST void *vval;
}
int
-get_process_selected_p (struct Lisp_Process *p)
+get_process_selected_p (Lisp_Process *p)
{
return p->selected;
}
void
-set_process_selected_p (struct Lisp_Process *p, int selected_p)
+set_process_selected_p (Lisp_Process *p, int selected_p)
{
p->selected = !!selected_p;
}
int
-connected_via_filedesc_p (struct Lisp_Process *p)
+connected_via_filedesc_p (Lisp_Process *p)
{
return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p));
}
int
network_connection_p (Lisp_Object process)
{
- return GC_CONSP (XPROCESS (process)->pid);
+ return CONSP (XPROCESS (process)->pid);
}
#endif
return PROCESSP (obj) ? Qt : Qnil;
}
+DEFUN ("process-live-p", Fprocess_live_p, 1, 1, 0, /*
+Return t if OBJECT is a process that is alive.
+*/
+ (obj))
+{
+ return PROCESSP (obj) && PROCESS_LIVE_P (XPROCESS (obj)) ? Qt : Qnil;
+}
+
DEFUN ("process-list", Fprocess_list, 0, 0, 0, /*
Return a list of all processes.
*/
{
Lisp_Object tail;
- if (GC_PROCESSP (name))
+ if (PROCESSP (name))
return name;
if (!gc_in_progress)
of a signal or crash. */
CHECK_STRING (name);
- for (tail = Vprocess_list; GC_CONSP (tail); tail = XCDR (tail))
+ for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object proc = XCAR (tail);
QUIT;
{
Lisp_Object buf, tail, proc;
- if (GC_NILP (name)) return Qnil;
+ if (NILP (name)) return Qnil;
buf = Fget_buffer (name);
- if (GC_NILP (buf)) return Qnil;
+ if (NILP (buf)) return Qnil;
- for (tail = Vprocess_list; GC_CONSP (tail); tail = XCDR (tail))
+ for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
{
/* jwz: do not quit here - it isn't necessary, as there is no way for
Vprocess_list to get circular or overwhelmingly long, and this
function is called from layout_mode_element under redisplay. */
/* QUIT; */
proc = XCAR (tail);
- if (GC_PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf))
+ if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf))
return proc;
}
return Qnil;
/* This may be called during a GC from process_send_signal() from
kill_buffer_processes() if emacs decides to abort(). */
- if (GC_PROCESSP (name))
+ if (PROCESSP (name))
return name;
- if (GC_STRINGP (name))
+ if (STRINGP (name))
{
obj = Fget_process (name);
- if (GC_NILP (obj))
+ if (NILP (obj))
obj = Fget_buffer (name);
- if (GC_NILP (obj))
+ if (NILP (obj))
error ("Process %s does not exist", XSTRING_DATA (name));
}
- else if (GC_NILP (name))
+ else if (NILP (name))
obj = Fcurrent_buffer ();
else
obj = name;
/* Now obj should be either a buffer object or a process object.
*/
- if (GC_BUFFERP (obj))
+ if (BUFFERP (obj))
{
proc = Fget_buffer_process (obj);
- if (GC_NILP (proc))
+ if (NILP (proc))
error ("Buffer %s has no process", XSTRING_DATA (XBUFFER(obj)->name));
}
else
{
Lisp_Object val, name1;
int i;
- struct Lisp_Process *p =
- alloc_lcrecord_type (struct Lisp_Process, &lrecord_process);
+ Lisp_Process *p = alloc_lcrecord_type (Lisp_Process, &lrecord_process);
/* If name is already in use, modify it until it is unused. */
name1 = name;
}
void
-init_process_io_handles (struct Lisp_Process *p, void* in, void* out, int flags)
+init_process_io_handles (Lisp_Process *p, void* in, void* out, int flags)
{
USID usid = event_stream_create_stream_pair (in, out,
&p->pipe_instream, &p->pipe_outstream,
create_process (Lisp_Object process, Lisp_Object *argv, int nargv,
Lisp_Object program, Lisp_Object cur_dir)
{
- struct Lisp_Process *p = XPROCESS (process);
+ Lisp_Process *p = XPROCESS (process);
int pid;
/* *_create_process may change status_symbol, if the process
pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir));
p->pid = make_int (pid);
- if (!NILP(p->pipe_instream))
+ if (PROCESS_LIVE_P (p))
event_stream_select_process (p);
}
DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, 0, /*
Open a TCP connection for a service to a host.
-Returns a subprocess-object to represent the connection.
+Return a subprocess-object to represent the connection.
Input and output work as for subprocesses; `delete-process' closes it.
NAME is name for process. It is modified if necessary to make it unique.
Third arg is name of the host to connect to, or its IP address.
Fourth arg SERVICE is name of the service desired, or an integer
specifying a port number to connect to.
-Fifth argument FAMILY is a protocol family. When omitted, 'tcp/ip
-\(Internet protocol family TCP/IP) is assumed.
+Fifth argument PROTOCOL is a network protocol. Currently 'tcp
+ (Transmission Control Protocol) and 'udp (User Datagram Protocol) are
+ supported. When omitted, 'tcp is assumed.
+
+Ouput via `process-send-string' and input via buffer or filter (see
+`set-process-filter') are stream-oriented. That means UDP datagrams are
+not guaranteed to be sent and received in discrete packets. (But small
+datagrams around 500 bytes that are not truncated by `process-send-string'
+are usually fine.) Note further that UDP protocol does not guard against
+lost packets.
*/
- (name, buffer, host, service, family))
+ (name, buffer, host, service, protocol))
{
/* !!#### This function has not been Mule-ized */
/* This function can GC */
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1;
void *inch, *outch;
- GCPRO5 (name, buffer, host, service, family);
+ GCPRO5 (name, buffer, host, service, protocol);
CHECK_STRING (name);
- if (NILP(family))
- family = Qtcpip;
+ if (NILP(protocol))
+ protocol = Qtcp;
else
- CHECK_SYMBOL (family);
+ CHECK_SYMBOL (protocol);
/* Since this code is inside HAVE_SOCKETS, existence of
open_network_stream is mandatory */
- PROCMETH (open_network_stream, (name, host, service, family,
+ PROCMETH (open_network_stream, (name, host, service, protocol,
&inch, &outch));
if (!NILP (buffer))
DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /*
Open a multicast connection on the specified dest/port/ttl.
-Returns a subprocess-object to represent the connection.
+Return a subprocess-object to represent the connection.
Input and output work as for subprocesses; `delete-process' closes it.
NAME is name for process. It is modified if necessary to make it unique.
Bytecount nbytes, nchars;
Bufbyte chars[1024];
Lisp_Object outstream;
- struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Process *p = XPROCESS (proc);
/* If there is a lot of output from the subprocess, the loop in
execute_internal_event() might call read_process_output() more
Really, the loop in execute_internal_event() should check itself
for a process-filter change, like in status_notify(); but the
struct Lisp_Process is not exported outside of this file. */
- if (NILP(p->pipe_instream))
+ if (!PROCESS_LIVE_P (p))
return -1; /* already closed */
if (!NILP (p->filter) && (p->filter_does_read))
if (nonrelocatable)
lstream =
make_fixed_buffer_input_stream (nonrelocatable + start, len);
- else if (GC_BUFFERP (relocatable))
+ else if (BUFFERP (relocatable))
lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable),
start, start + len, 0);
else
set_process_filter (Lisp_Object proc, Lisp_Object filter, int filter_does_read)
{
CHECK_PROCESS (proc);
- if (PROCESS_LIVE_P (proc)) {
+ if (PROCESS_LIVE_P (XPROCESS (proc))) {
if (EQ (filter, Qt))
event_stream_unselect_process (XPROCESS (proc));
else
(process))
{
process = get_process (process);
+ CHECK_LIVE_PROCESS (process);
return decoding_stream_coding_system (XLSTREAM (XPROCESS (process)->coding_instream) );
}
(process))
{
process = get_process (process);
+ CHECK_LIVE_PROCESS (process);
return encoding_stream_coding_system (XLSTREAM (XPROCESS (process)->coding_outstream));
}
(process))
{
process = get_process (process);
+ CHECK_LIVE_PROCESS (process);
return Fcons (decoding_stream_coding_system
(XLSTREAM (XPROCESS (process)->coding_instream)),
encoding_stream_coding_system
{
codesys = Fget_coding_system (codesys);
process = get_process (process);
+ CHECK_LIVE_PROCESS (process);
+
set_decoding_stream_coding_system
(XLSTREAM (XPROCESS (process)->coding_instream), codesys);
return Qnil;
{
codesys = Fget_coding_system (codesys);
process = get_process (process);
+ CHECK_LIVE_PROCESS (process);
+
set_encoding_stream_coding_system
(XLSTREAM (XPROCESS (process)->coding_outstream), codesys);
return Qnil;
DEFUN ("set-process-coding-system", Fset_process_coding_system,
1, 3, 0, /*
Set coding-systems of PROCESS to DECODING and ENCODING.
+DECODING will be used to decode subprocess output and ENCODING to
+encode subprocess input.
*/
(process, decoding, encoding))
{
static Lisp_Object
exec_sentinel_unwind (Lisp_Object datum)
{
- struct Lisp_Cons *d = XCONS (datum);
+ Lisp_Cons *d = XCONS (datum);
XPROCESS (d->car)->sentinel = d->cdr;
free_cons (d);
return Qnil;
{
/* This function can GC */
int speccount = specpdl_depth ();
- struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Process *p = XPROCESS (proc);
Lisp_Object sentinel = p->sentinel;
if (NILP (sentinel))
/* Return a string describing a process status list. */
static Lisp_Object
-status_message (struct Lisp_Process *p)
+status_message (Lisp_Process *p)
{
Lisp_Object symbol = p->status_symbol;
int code = p->exit_code;
for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object proc = XCAR (tail);
- struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Process *p = XPROCESS (proc);
/* p->tick is also volatile. Same thing as above applies. */
int this_process_tick;
if (network_connection_p (proc))
error ("Network connection %s is not a subprocess",
XSTRING_DATA (XPROCESS(proc)->name));
- if (!PROCESS_LIVE_P (proc))
- error ("Process %s is not active",
- XSTRING_DATA (XPROCESS(proc)->name));
+ CHECK_LIVE_PROCESS (proc);
MAYBE_PROCMETH (kill_child_process, (proc, signo, current_group, nomsg));
}
void
deactivate_process (Lisp_Object proc)
{
- struct Lisp_Process *p = XPROCESS (proc);
+ Lisp_Process *p = XPROCESS (proc);
USID usid;
/* It's possible that we got as far in the process-creation
(proc))
{
/* This function can GC */
- struct Lisp_Process *p;
+ Lisp_Process *p;
proc = get_process (proc);
p = XPROCESS (proc);
if (network_connection_p (proc))
p->tick++;
process_tick++;
}
- else if (!NILP(p->pipe_instream))
+ else if (PROCESS_LIVE_P (p))
{
Fkill_process (proc, Qnil);
/* Do this now, since remove_process will make sigchld_handler do nothing. */
{
Lisp_Object tail;
- for (tail = Vprocess_list; GC_CONSP (tail);
+ for (tail = Vprocess_list; CONSP (tail);
tail = XCDR (tail))
{
Lisp_Object proc = XCAR (tail);
- if (GC_PROCESSP (proc)
- && (GC_NILP (buffer) || GC_EQ (XPROCESS (proc)->buffer, buffer)))
+ if (PROCESSP (proc)
+ && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer)))
{
if (network_connection_p (proc))
Fdelete_process (proc);
- else if (!NILP (XPROCESS (proc)->pipe_instream))
+ else if (PROCESS_LIVE_P (XPROCESS (proc)))
process_send_signal (proc, SIGHUP, 0, 1);
}
}
syms_of_process (void)
{
defsymbol (&Qprocessp, "processp");
+ defsymbol (&Qprocess_live_p, "process-live-p");
defsymbol (&Qrun, "run");
defsymbol (&Qstop, "stop");
defsymbol (&Qopen, "open");
defsymbol (&Qclosed, "closed");
- defsymbol (&Qtcpip, "tcp/ip");
+ defsymbol (&Qtcp, "tcp");
+ defsymbol (&Qudp, "udp");
#ifdef HAVE_MULTICAST
defsymbol(&Qmulticast, "multicast"); /* Used for occasional warnings */
#endif
DEFSUBR (Fprocessp);
+ DEFSUBR (Fprocess_live_p);
DEFSUBR (Fget_process);
DEFSUBR (Fget_buffer_process);
DEFSUBR (Fdelete_process);
projects / chise / xemacs-chise.git.1 / blobdiff