static status_t command_loop(int (*get_line)(const char **, void *), void *get_line_cookie, bool showprompt, bool locked)
{
bool exit;
#if WITH_LIB_ENV
bool report_result;
#endif
cmd_args *args = NULL;
const char *buffer;
const char *continuebuffer;
char *outbuf = NULL;
args = (cmd_args *) malloc (MAX_NUM_ARGS * sizeof(cmd_args));
if (unlikely(args == NULL)) {
goto no_mem_error;
}
const size_t outbuflen = 1024;
outbuf = malloc(outbuflen);
if (unlikely(outbuf == NULL)) {
goto no_mem_error;
}
exit = false;
continuebuffer = NULL;
while (!exit) {
// read a new line if it hadn't been split previously and passed back from tokenize_command
if (continuebuffer == NULL) {
if (showprompt)
fputs("] ", stdout);
int len = get_line(&buffer, get_line_cookie);
if (len < 0)
break;
if (len == 0)
continue;
} else {
buffer = continuebuffer;
}
// dprintf("line = '%s'\n", buffer);
/* tokenize the line */
int argc = tokenize_command(buffer, &continuebuffer, outbuf, outbuflen,
args, MAX_NUM_ARGS);
if (argc < 0) {
if (showprompt)
printf("syntax error\n");
continue;
} else if (argc == 0) {
continue;
}
// dprintf("after tokenize: argc %d\n", argc);
// for (int i = 0; i < argc; i++)
// dprintf("%d: '%s'\n", i, args[i].str);
/* convert the args */
convert_args(argc, args);
/* try to match the command */
const cmd *command = match_command(args[0].str, CMD_AVAIL_NORMAL);
if (!command) {
if (showprompt)
printf("command not found\n");
continue;
}
if (!locked)
mutex_acquire(command_lock);
abort_script = false;
lastresult = command->cmd_callback(argc, args);
#if WITH_LIB_ENV
bool report_result;
env_get_bool("reportresult", &report_result, false);
if (report_result) {
if (lastresult < 0)
printf("FAIL %d\n", lastresult);
else
printf("PASS %d\n", lastresult);
}
#endif
#if WITH_LIB_ENV
// stuff the result in an environment var
env_set_int("?", lastresult, true);
#endif
// someone must have aborted the current script
if (abort_script)
exit = true;
abort_script = false;
if (!locked)
mutex_release(command_lock);
}
free(outbuf);
free(args);
return NO_ERROR;
no_mem_error:
if (outbuf)
free(outbuf);
if (args)
free(args);
dprintf(INFO, "%s: not enough memory\n", __func__);
return ERR_NO_MEMORY;
}
static void command_loop(int (*get_line)(const char **, void *), void *get_line_cookie, bool showprompt, bool locked)
{
bool exit;
bool report_result;
cmd_args args[16];
const char *buffer;
const char *continuebuffer;
char *outbuf;
const size_t outbuflen = 1024;
outbuf = malloc(outbuflen);
exit = false;
continuebuffer = NULL;
while (!exit) {
// read a new line if it hadn't been split previously and passed back from tokenize_command
if (continuebuffer == NULL) {
if (showprompt)
puts("] ");
int len = get_line(&buffer, get_line_cookie);
if (len < 0)
break;
if (len == 0)
continue;
} else {
buffer = continuebuffer;
}
// dprintf("line = '%s'\n", buffer);
/* tokenize the line */
int argc = tokenize_command(buffer, &continuebuffer, outbuf, outbuflen, args, 16);
if (argc < 0) {
if (showprompt)
printf("syntax error\n");
continue;
} else if (argc == 0) {
continue;
}
// dprintf("after tokenize: argc %d\n", argc);
// for (int i = 0; i < argc; i++)
// dprintf("%d: '%s'\n", i, args[i].str);
/* convert the args */
convert_args(argc, args);
/* try to match the command */
const cmd *command = match_command(args[0].str);
if (!command) {
if (showprompt)
printf("command not found\n");
continue;
}
if (!locked)
mutex_acquire(command_lock);
abort_script = false;
lastresult = command->cmd_callback(argc, args);
#if WITH_LIB_ENV
if ((env_get_bool("reportresult", &report_result, false) >= 0) &&
(report_result))
{
if (lastresult < 0)
printf("FAIL %d\n", lastresult);
else
printf("PASS %d\n", lastresult);
}
#endif
#if WITH_LIB_ENV
// stuff the result in an environment var
env_set_int("?", lastresult, true);
#endif
// someone must have aborted the current script
if (abort_script)
exit = true;
abort_script = false;
if (!locked)
mutex_release(command_lock);
}
free(outbuf);
}
