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Added support for STEP command execution in Remote Console sessions

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This commit is contained in:
Mark Pizzolato 2013-04-24 11:43:44 -07:00
parent 27283179d9
commit 02ebf6bdfc
2 changed files with 97 additions and 40 deletions
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3
README.md
View file

@ -22,7 +22,8 @@
#### Remote Console Facility
A new capability has been added which allows a TELNET Connection to a user designated port so that some out of band commands can be entered to manipulate and/or adjust a running simulator. The commands which enable and control this capability are SET REMOTE TELNET=port, SET REMOTE CONNECTIONS=n, SET REMOTE TIMEOUT=seconds, and SHOW REMOTE.
A subset of normal simh commands are available for use in remote console sessions. These are: EXAMINE, IEXAMINE, DEPOSIT, EVALUATE, ATTACH, DETACH, ASSIGN, DEASSIGN, CONTINUE, PWD, SAVE, SET, SHOW, DIR, LS, ECHO, HELP
A subset of normal simh commands are available for use in remote console sessions. These are: EXAMINE, IEXAMINE, DEPOSIT, EVALUATE, ATTACH, DETACH, ASSIGN, DEASSIGN, STEP, CONTINUE, PWD, SAVE, SET, SHOW, DIR, LS, ECHO, HELP
#### VAX/PDP11 Enhancements
RQ has new disk types: RC25, RCF25, RA80

106
sim_console.c
View file

@ -348,6 +348,7 @@ static int32 *sim_rem_buf_ptr = NULL;
static char **sim_rem_buf = NULL;
static TMXR sim_rem_con_tmxr = { 0, 0, 0, NULL, NULL, &sim_remote_console };/* remote console line mux */
static uint32 sim_rem_read_timeout = 30; /* seconds before automatic continue */
static int32 sim_rem_step_line = -1; /* step in progress on line # */
/* SET REMOTE CONSOLE command */
@ -416,8 +417,7 @@ if (c >= 0) { /* poll connect */
sim_activate_after(uptr+1, 1000000); /* start data poll after 100ms */
lp->rcve = 1; /* rcv enabled */
sim_rem_buf_ptr[c] = 0; /* start with empty command buffer */
tmxr_linemsg (lp, sim_name);
tmxr_linemsg (lp, " Remote Console\r\nSimulator Running...");
tmxr_linemsgf (lp, "%s Remote Console\r\nSimulator Running...", sim_name);
tmxr_send_buffered_data (lp); /* flush buffered data */
}
sim_activate_after(uptr, 1000000); /* check again in 1 second */
@ -431,6 +431,13 @@ static t_stat x_continue_cmd (int32 flag, char *cptr)
return SCPE_IERR; /* This routine should never be called */
}
static t_stat x_step_cmd (int32 flag, char *cptr)
{
return SCPE_IERR; /* This routine should never be called */
}
static t_stat x_help_cmd (int32 flag, char *cptr);
#define EX_D 0 /* deposit */
#define EX_E 1 /* examine */
#define EX_I 2 /* interactive */
@ -444,18 +451,19 @@ static CTAB allowed_remote_cmds[] = {
{ "ASSIGN", &assign_cmd, 0 },
{ "DEASSIGN", &deassign_cmd, 0 },
{ "CONTINUE", &x_continue_cmd, 0 },
{ "STEP", &x_step_cmd, 0 },
{ "PWD", &pwd_cmd, 0 },
{ "SAVE", &save_cmd, 0 },
{ "SET", &set_cmd, 0 },
{ "SHOW", &show_cmd, 0 },
{ "DIR", &dir_cmd, 0 },
{ "LS", &dir_cmd, 0 },
{ "ECHO", &echo_cmd, 0 },
{ "HELP", &help_cmd, 0 },
{ "SET", &set_cmd, 0 },
{ "SHOW", &show_cmd, 0 },
{ "HELP", &x_help_cmd, 0 },
{ NULL, NULL }
};
static t_stat sim_rem_con_help (int32 flag, char *cptr)
static t_stat x_help_cmd (int32 flag, char *cptr)
{
CTAB *cmdp, *cmdph;
@ -481,6 +489,9 @@ t_stat sim_rem_con_data_svc (UNIT *uptr)
{
int32 i, j, c;
t_stat stat, stat_nomessage;
t_bool stepping = FALSE;
int32 steps = 1;
t_bool was_stepping = (sim_rem_step_line != -1);
t_bool got_command;
TMLN *lp;
char cbuf[4*CBUFSIZE], gbuf[CBUFSIZE], *cptr, *argv[1] = {NULL};
@ -489,10 +500,39 @@ uint32 read_start_time;
t_offset cmd_log_start;
tmxr_poll_rx (&sim_rem_con_tmxr); /* poll input */
for (i=0; i < sim_rem_con_tmxr.lines; i++) {
for (i=(was_stepping ? sim_rem_step_line : 0);
(i < sim_rem_con_tmxr.lines) && (!stepping);
i++) {
lp = &sim_rem_con_tmxr.ldsc[i];
if (!lp->conn)
continue;
if (was_stepping) {
sim_rem_step_line = -1; /* Done with step */
stat = SCPE_STEP;
cmdp = find_cmd ("STEP");
stat_nomessage = stat & SCPE_NOMESSAGE; /* extract possible message supression flag */
stat = SCPE_BARE_STATUS(stat); /* remove possible flag */
if (!stat_nomessage) { /* displaying message status? */
fflush (sim_log);
cmd_log_start = sim_ftell (sim_log);
if (cmdp && (cmdp->message)) /* special message handler? */
cmdp->message (NULL, stat); /* let it deal with display */
else
if (stat >= SCPE_BASE) { /* error? */
printf ("%s\r\n", sim_error_text (stat));
if (sim_log)
fprintf (sim_log, "%s\n", sim_error_text (stat));
}
fflush (sim_log);
sim_fseeko (sim_log, cmd_log_start, SEEK_SET);
cbuf[sizeof(cbuf)-1] = '\0';
while (fgets (cbuf, sizeof(cbuf)-1, sim_log)) {
tmxr_linemsgf (lp, "%s", cbuf);
tmxr_send_buffered_data (lp);
}
}
}
else {
c = tmxr_getc_ln (lp);
if (!(TMXR_VALID & c))
continue;
@ -503,19 +543,13 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
lp = &sim_rem_con_tmxr.ldsc[j];
if ((i == j) || (!lp->conn))
continue;
tmxr_linemsg (lp, "\r\nRemote Console(");
tmxr_linemsg (lp, lp->ipad);
tmxr_linemsg (lp, ") Entering Commands\r\n");
tmxr_linemsgf (lp, "\nRemote Console(%s) Entering Commands\n", lp->ipad);
tmxr_send_buffered_data (lp); /* flush any buffered data */
}
lp = &sim_rem_con_tmxr.ldsc[i];
tmxr_linemsg (lp, "\r\nSimulator paused.\r\n");
if (sim_rem_read_timeout) {
char timeout_buf[32];
tmxr_linemsg (lp, "Simulation will resume automatically if input is not received in ");
sprintf (timeout_buf, "%d", sim_rem_read_timeout);
tmxr_linemsg (lp, timeout_buf);
tmxr_linemsg (lp, " seconds\r\n");
if (sim_rem_read_timeout)
tmxr_linemsgf (lp, "Simulation will resume automatically if input is not received in %d seconds\n", sim_rem_read_timeout);
}
while (1) {
read_start_time = sim_os_msec();
@ -537,8 +571,7 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
sim_rem_buf[i] = realloc (sim_rem_buf[i], sim_rem_buf_size[i]);
}
strcpy (sim_rem_buf[i], "CONTINUE ! Automatic continue due to timeout");
tmxr_linemsg (lp, sim_rem_buf[i]);
tmxr_linemsg (lp, "\r\n");
tmxr_linemsgf (lp, "%s\n", sim_rem_buf[i]);
got_command = TRUE;
break;
}
@ -593,15 +626,15 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
fprintf (sim_log, "Remote Console Command from %s> %s\n", lp->ipad, sim_rem_buf[i]);
if (strlen(sim_rem_buf[i]) >= sizeof(cbuf)) {
printf ("\r\nLine too long. Ignored. Continuing Simulator execution\r\n");
tmxr_linemsg (lp, "\r\nLine too long. Ignored. Continuing Simulator execution\r\n");
tmxr_linemsgf (lp, "\nLine too long. Ignored. Continuing Simulator execution\n");
tmxr_send_buffered_data (lp); /* try to flush any buffered data */
break;
}
strcpy (cbuf, sim_rem_buf[i]);
if (cbuf[0] == '\0')
continue;
sim_rem_buf_ptr[i] = 0;
sim_rem_buf[i][sim_rem_buf_ptr[i]] = '\0';
if (cbuf[0] == '\0')
continue;
sim_sub_args (cbuf, sizeof(cbuf), argv);
cptr = cbuf;
cptr = get_glyph (cptr, gbuf, 0); /* get command glyph */
@ -614,8 +647,24 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
if (cmdp->action == &x_continue_cmd)
stat = SCPE_OK;
else {
if (cmdp->action == &help_cmd)
stat = sim_rem_con_help (cmdp->arg, cptr);
if (cmdp->action == &x_step_cmd) {
steps = 1; /* default of 1 instruction */
stat = SCPE_OK;
if (*cptr != 0) { /* argument? */
cptr = get_glyph (cptr, gbuf, 0);/* get next glyph */
if (*cptr != 0) /* should be end */
stat = SCPE_2MARG;
else {
steps = (int32) get_uint (gbuf, 10, INT_MAX, &stat);
if ((stat != SCPE_OK) || (steps <= 0)) /* error? */
stat = SCPE_ARG;
}
}
if (stat == SCPE_OK)
stepping = TRUE;
else
cmdp = NULL;
}
else
stat = cmdp->action (cmdp->arg, cptr);
}
@ -639,11 +688,11 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
sim_fseeko (sim_log, cmd_log_start, SEEK_SET);
cbuf[sizeof(cbuf)-1] = '\0';
while (fgets (cbuf, sizeof(cbuf)-1, sim_log)) {
tmxr_linemsg (lp, cbuf);
tmxr_linemsg (lp, "\r");
tmxr_linemsgf (lp, "%s", cbuf);
tmxr_send_buffered_data (lp);
}
if (cmdp && (cmdp->action == &x_continue_cmd)) {
sim_rem_step_line = -1; /* Not stepping */
tmxr_linemsg (lp, "Simulator Running...");
tmxr_send_buffered_data (lp);
for (j=0; j < sim_rem_con_tmxr.lines; j++) {
@ -655,8 +704,15 @@ for (i=0; i < sim_rem_con_tmxr.lines; i++) {
}
break;
}
if (cmdp && (cmdp->action == &x_step_cmd)) {
sim_rem_step_line = i;
break;
}
}
}
if (stepping)
sim_activate(uptr, steps); /* check again after 'steps' instructions */
else
sim_activate_after(uptr, 100000); /* check again in 100 milliaeconds */
return SCPE_OK;
}