/**
* @function logfile.flush
*
* ### Synopsis
*
* logfile.flush(handle);
*
* Flush contents of shared memory block to the log file, reset memory block to "empty" state.
*
* @param {object} handle - handle of logfile to flush.
*/
static JSVAL logfile_flush (JSARGS args) {
STATE *state = HANDLE(args[0]);
lock_logfile(state);
flush_logfile(state);
unlock_logfile(state);
return Undefined();
}
/**
* @function logfile.flush
*
* ### Synopsis
*
* logfile.flush(handle);
*
* Flush contents of shared memory block to the log file, reset memory block to "empty" state.
*
* @param {object} handle - handle of logfile to flush.
*/
static JSVAL logfile_flush (JSARGS args) {
HandleScope scope;
STATE *state = log_HANDLE(args[0]);
lock_logfile(state);
flush_logfile(state);
unlock_logfile(state);
return Undefined();
}
/**
* @function logfile.write
*
* ### Synopsis
*
* logfile.write(handle, s);
* logfile.write(handle, s, len);
*
* Write a string to the log file.
*
* The string is appended to the shared memory block. The memory block is first flushed to disk if there is not enough room for the string.
*
* @param {object} handle - handle of the log file.
* @param {string} s - string to write to the log file.
* @param {int} len - optional length of string to write; defaults to strlen(s).
*
*/
static JSVAL logfile_write (JSARGS args) {
STATE *state = HANDLE(args[0]);
String::AsciiValue buf(args[1]);
int len;
if (args.Length() > 2) {
len = args[2]->IntegerValue();
}
else {
len = strlen(*buf);
}
lock_logfile(state);
if (*state->length + len >= LOGFILE_CHUNK_SIZE) {
flush_logfile(state);
}
memcpy(&state->logBuffer[*state->length], *buf, len);
*state->length += len;
unlock_logfile(state);
return Undefined();
}
static void fileWriterTask(void *params)
{
LoggerMessage *msg = NULL;
struct logging_status ls;
memset(&ls, 0, sizeof(struct logging_status));
while(1) {
int rc = -1;
/* Get a sample. */
xQueueReceive(g_sampleRecordQueue, &(msg), portMAX_DELAY);
switch (msg->type) {
case LoggerMessageType_Sample:
rc = logging_sample(&ls, msg);
break;
case LoggerMessageType_Start:
rc = logging_start(&ls);
break;
case LoggerMessageType_Stop:
rc = logging_stop(&ls);
break;
default:
pr_warning("Unsupported message type\r\n");
}
/* Turns the LED on if things are bad, off otherwise. */
error_led(rc);
if (rc) {
pr_debug("Msg type ");
pr_debug_int(msg->type);
pr_debug_int_msg(" failed with code ", rc);
}
flush_logfile(&ls);
}
}
