ssize_t io_read(int fd, void *buf, size_t count)
{
ssize_t amountRead;
tgdb_read:
if ((amountRead = read(fd, buf, count)) == -1) { /* error */
if (errno == EINTR)
goto tgdb_read;
else if (errno != EIO) {
logger_write_pos(logger, __FILE__, __LINE__,
"error reading from fd");
return -1;
} else {
return 0; /* Happens on EOF for some reason */
}
} else if (amountRead == 0) { /* EOF */
return 0;
} else {
char *str = sys_quote_nonprintables((char *)buf, amountRead);
clog_debug(CLOG(TGDB_LOGGER), "%s", str);
sbfree(str);
}
return amountRead;
}
/**
* Send a command to gdb.
*
* @param tgdb
* An instance of tgdb
*
* @param request
* The command request to issue the command for
*/
static void tgdb_run_request(struct tgdb *tgdb, struct tgdb_request *request)
{
std::string command;
if (request->header == TGDB_REQUEST_CONSOLE_COMMAND ||
request->header == TGDB_REQUEST_COMPLETE ||
request->header == TGDB_REQUEST_DEBUGGER_COMMAND) {
tgdb->make_console_ready_callback = true;
}
tgdb->is_gdb_ready_for_next_command = 0;
tgdb_get_gdb_command(tgdb, request, command);
/* Add a newline to the end of the command if it doesn't exist */
if (*command.rbegin() != '\n') {
command.push_back('\n');
}
/* Send what we're doing to log file */
char *str = sys_quote_nonprintables(command.c_str(), -1);
clog_debug(CLOG_GDBIO, "%s", str);
sbfree(str);
/* A command for the debugger */
commands_set_current_request_type(tgdb->c, request->header);
io_writen(tgdb->debugger_stdin, command.c_str(), command.size());
// Alert the GUI a command was sent
tgdb->callbacks.request_sent_callback(
tgdb->callbacks.context, request, command);
tgdb_request_destroy(request);
}
