static gboolean
_load_queue(QDisk *self, GQueue *q, gint64 q_ofs, gint32 q_len, gint32 q_count)
{
GString *serialized;
SerializeArchive *sa;
gint i;
if (q_ofs)
{
gssize read_len;
serialized = g_string_sized_new(q_len);
g_string_set_size(serialized, q_len);
read_len = pread(self->fd, serialized->str, q_len, q_ofs);
if (read_len < 0 || read_len != q_len)
{
msg_error("Error reading in-memory buffer from disk-queue file",
evt_tag_str("filename", self->filename),
read_len < 0 ? evt_tag_errno("error", errno) : evt_tag_str("error", "short read"));
g_string_free(serialized, TRUE);
return FALSE;
}
sa = serialize_string_archive_new(serialized);
for (i = 0; i < q_count; i++)
{
LogMessage *msg;
msg = log_msg_new_empty();
if (log_msg_deserialize(msg, sa))
{
g_queue_push_tail(q, msg);
/* we restore the queue without ACKs */
g_queue_push_tail(q, GINT_TO_POINTER(0x80000000));
}
else
{
msg_error("Error reading message from disk-queue file (maybe currupted file) some messages will be lost",
evt_tag_str("filename", self->filename),
evt_tag_int("lost messages", q_count - i));
log_msg_unref(msg);
break;
}
}
g_string_free(serialized, TRUE);
serialize_archive_free(sa);
}
return TRUE;
}
static gboolean
_pop_disk(LogQueueDisk *self, LogMessage **msg)
{
GString *serialized;
SerializeArchive *sa;
*msg = NULL;
if (!qdisk_initialized(self->qdisk))
return FALSE;
serialized = g_string_sized_new(64);
if (!qdisk_pop_head(self->qdisk, serialized))
{
g_string_free(serialized, TRUE);
return FALSE;
}
sa = serialize_string_archive_new(serialized);
*msg = log_msg_new_empty();
if (!log_msg_deserialize(*msg, sa))
{
g_string_free(serialized, TRUE);
serialize_archive_free(sa);
log_msg_unref(*msg);
*msg = NULL;
msg_error("Can't read correct message from disk-queue file",evt_tag_str("filename",qdisk_get_filename(self->qdisk)),NULL);
return TRUE;
}
serialize_archive_free(sa);
g_string_free(serialized, TRUE);
return TRUE;
}