* $Author$
* $Header$
*
- * Copyright (C) 1987, 1989 by the Massachusetts Institute of Technology
+ * Copyright (C) 1987, 1989, 1990 by the Massachusetts Institute of
+ * Technology
* For copying and distribution information, please see the file
* <mit-copyright.h>.
*
* This routine is part of the client library. It handles
* the protocol operations: invoking an update and getting the
- * SMS message of the day.
+ * MR message of the day.
*/
#ifndef lint
#endif lint
#include <mit-copyright.h>
-#include "sms_private.h"
+#include <strings.h>
+#include "mr_private.h"
/* Invoke a DCM update. */
-int sms_do_update()
+int mr_do_update()
{
int status;
- sms_params param_st;
- struct sms_params *params = NULL;
- struct sms_params *reply = NULL;
+ mr_params param_st;
+ struct mr_params *params = NULL;
+ struct mr_params *reply = NULL;
CHECK_CONNECTED;
params = ¶m_st;
- params->sms_version_no = sending_version_no;
- params->sms_procno = SMS_DO_UPDATE;
- params->sms_argc = 0;
- params->sms_argl = NULL;
- params->sms_argv = NULL;
+ params->mr_version_no = sending_version_no;
+ params->mr_procno = MR_DO_UPDATE;
+ params->mr_argc = 0;
+ params->mr_argl = NULL;
+ params->mr_argv = NULL;
- if ((status = sms_do_call(params, &reply)) == 0)
- status = reply->sms_status;
+ if ((status = mr_do_call(params, &reply)) == 0)
+ status = reply->mr_status;
- sms_destroy_reply(reply);
+ mr_destroy_reply(reply);
return status;
}
-/* Get the SMS motd. This returns an SMS status, and motd will either
+/* Get the MR motd. This returns an MR status, and motd will either
* point to NULL or the motd in a static buffer.
*/
-int sms_motd(motd)
+int mr_motd(motd)
char **motd;
{
int status;
- sms_params param_st;
- struct sms_params *params = NULL;
- struct sms_params *reply = NULL;
+ mr_params param_st;
+ struct mr_params *params = NULL;
+ struct mr_params *reply = NULL;
static char buffer[1024];
*motd = NULL;
CHECK_CONNECTED;
params = ¶m_st;
- params->sms_version_no = sending_version_no;
- params->sms_procno = SMS_MOTD;
- params->sms_argc = 0;
- params->sms_argl = NULL;
- params->sms_argv = NULL;
+ params->mr_version_no = sending_version_no;
+ params->mr_procno = MR_MOTD;
+ params->mr_argc = 0;
+ params->mr_argl = NULL;
+ params->mr_argv = NULL;
- if ((status = sms_do_call(params, &reply)))
+ if ((status = mr_do_call(params, &reply)))
goto punt;
- while ((status = reply->sms_status) == SMS_MORE_DATA) {
- if (reply->sms_argc > 0) {
- strncpy(buffer, reply->sms_argv[0], sizeof(buffer));
+ while ((status = reply->mr_status) == MR_MORE_DATA) {
+ if (reply->mr_argc > 0) {
+ strncpy(buffer, reply->mr_argv[0], sizeof(buffer));
*motd = buffer;
}
- sms_destroy_reply(reply);
+ mr_destroy_reply(reply);
reply = NULL;
- initialize_operation(_sms_recv_op, sms_start_recv, &reply,
+ initialize_operation(_mr_recv_op, mr_start_recv, &reply,
(int (*)())NULL);
- queue_operation(_sms_conn, CON_INPUT, _sms_recv_op);
+ queue_operation(_mr_conn, CON_INPUT, _mr_recv_op);
- complete_operation(_sms_recv_op);
- if (OP_STATUS(_sms_recv_op) != OP_COMPLETE) {
- sms_disconnect();
- status = SMS_ABORTED;
+ mr_complete_operation(_mr_recv_op);
+ if (OP_STATUS(_mr_recv_op) != OP_COMPLETE) {
+ mr_disconnect();
+ status = MR_ABORTED;
return(status);
}
}
punt:
- sms_destroy_reply(reply);
- return(status);
+ mr_destroy_reply(reply);
+ /* for backwards compatability */
+ if (status == MR_UNKNOWN_PROC)
+ return(0);
+ else
+ return(status);
}
+
+
+/* Tell the library to take care of another input source while it is
+ * processing a query. For instance, an X toolkit application would
+ * do something like
+ * mr_set_alternate_input(ConnectionNumber(XtDisplay(widget)), doxinput);
+ * where doxinput is defined as:
+ * doxinput() {
+ * extern Widget toplevel;
+ * XEvent event;
+ * while (XPending(XtDisplay(toplevel))) {
+ * XNextEvent(XtDisplay(toplevel), &event);
+ * XtDispatchEvent(&event);
+ * }
+ * XFlush(XtDisplay(toplevel));
+ * }
+ */
+
+static int mr_alternate_input = 0;
+static int (*mr_alternate_handler)();
+
+int mr_set_alternate_input(fd, proc)
+int fd;
+int (*proc)();
+{
+ if (mr_alternate_input != 0)
+ return(MR_ALREADY_CONNECTED);
+ mr_alternate_input = fd;
+ mr_alternate_handler = proc;
+ return(MR_SUCCESS);
+}
+
+
+/* This is used by the parts of the library that must wait for GDB. It
+ * handles alternate input streams (such as X) as well.
+ */
+
+mr_complete_operation(op)
+OPERATION op;
+{
+ long infd, outfd, exfd;
+ int rc;
+
+ gdb_progress(); /* try for an immediate completion */
+
+ if (mr_alternate_input == 0)
+ return(complete_operation(op));
+
+ infd = (1<<mr_alternate_input);
+ outfd = exfd = 0;
+
+ while(op->status != OP_COMPLETE && op->status != OP_CANCELLED) {
+ rc = con_select(mr_alternate_input, (fd_set *)&infd, (fd_set *)&outfd,
+ (fd_set *)&exfd, (struct timeval *)NULL);
+ if (rc > 0 && mr_alternate_handler) {
+ (*mr_alternate_handler)();
+ }
+ }
+ return(op->status);
+}
+