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Pavel Chromy: hopefully perfection for async output and prompt/partially typed command line handling. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@487 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-03-10 20:05:48 +00:00
parent e378eeec36
commit cce7512ca9
1 changed files with 24 additions and 13 deletions
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37
src/server/telnet_server.c
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@ -72,6 +72,7 @@ int telnet_prompt(connection_t *connection)
{ {
telnet_connection_t *t_con = connection->priv; telnet_connection_t *t_con = connection->priv;
telnet_write(connection, "\r", 1); /* the prompt is always placed at the line beginning */
return telnet_write(connection, t_con->prompt, strlen(t_con->prompt)); return telnet_write(connection, t_con->prompt, strlen(t_con->prompt));
} }
@ -114,12 +115,22 @@ void telnet_log_callback(void *priv, const char *file, int line,
const char *function, const char *string) const char *function, const char *string)
{ {
connection_t *connection = priv; connection_t *connection = priv;
telnet_connection_t *t_con = connection->priv;
int i;
telnet_write(connection, "\b\b \b\b", strlen("\b\b \b\b")); /* clear the command line */
telnet_write(connection, "\r", 1);
for (i = strlen(t_con->prompt) + t_con->line_size; i>0; i-=16)
telnet_write(connection, " ", i>16 ? 16 : i);
telnet_write(connection, "\r", 1);
telnet_outputline(connection, string); telnet_outputline(connection, string);
/* put the command line to its previous state */
telnet_prompt(connection); telnet_prompt(connection);
telnet_write(connection, t_con->line, t_con->line_size);
for (i=t_con->line_size; i>t_con->line_cursor; i--)
telnet_write(connection, "\b", 1);
} }
int telnet_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv) int telnet_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
@ -289,19 +300,11 @@ int telnet_input(connection_t *connection)
telnet_write(connection, "\r\n\x00", 3); telnet_write(connection, "\r\n\x00", 3);
} }
} }
telnet_prompt(connection);
t_con->line_size = 0; t_con->line_size = 0;
t_con->line_cursor = 0; t_con->line_cursor = 0;
continue; continue;
} }
retval = command_run_line(command_context, t_con->line);
if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
{
return ERROR_SERVER_REMOTE_CLOSED;
}
/* Save only non-blank lines in the history */ /* Save only non-blank lines in the history */
if (t_con->line_size > 0) if (t_con->line_size > 0)
{ {
@ -327,12 +330,17 @@ int telnet_input(connection_t *connection)
t_con->history[t_con->current_history] = strdup(""); t_con->history[t_con->current_history] = strdup("");
} }
int t = telnet_prompt(connection);
if (t == ERROR_SERVER_REMOTE_CLOSED)
return t;
t_con->line_size = 0; t_con->line_size = 0;
t_con->line_cursor = 0; t_con->line_cursor = 0;
retval = command_run_line(command_context, t_con->line);
if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
return ERROR_SERVER_REMOTE_CLOSED;
retval = telnet_prompt(connection);
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return ERROR_SERVER_REMOTE_CLOSED;
} }
else if ((*buf_p == 0x7f) || (*buf_p == 0x8)) /* delete character */ else if ((*buf_p == 0x7f) || (*buf_p == 0x8)) /* delete character */
{ {
@ -579,6 +587,9 @@ int telnet_set_prompt(connection_t *connection, char *prompt)
{ {
telnet_connection_t *t_con = connection->priv; telnet_connection_t *t_con = connection->priv;
if (t_con->prompt != NULL)
free(t_con->prompt);
t_con->prompt = strdup(prompt); t_con->prompt = strdup(prompt);
return ERROR_OK; return ERROR_OK;