static gssize
g_socket_output_stream_pollable_write_nonblocking (GPollableOutputStream *pollable,
const void *buffer,
gsize size,
GError **error)
{
GSocketOutputStream *output_stream = G_SOCKET_OUTPUT_STREAM (pollable);
return g_socket_send_with_blocking (output_stream->priv->socket,
buffer, size, FALSE,
NULL, error);
}
static gssize
g_socket_output_stream_write (GOutputStream *stream,
const void *buffer,
gsize count,
GCancellable *cancellable,
GError **error)
{
GSocketOutputStream *onput_stream = G_SOCKET_OUTPUT_STREAM (stream);
return g_socket_send_with_blocking (onput_stream->priv->socket,
buffer, count, TRUE,
cancellable, error);
}
static char *_s52_send_cmd(const char *command, const char *params)
{
// debug
//g_print("s52ais:_s52_send_cmd(): start:%s\n", params);
if (NULL == _s52_connection) {
g_print("s52ais:_s52_send_cmd(): fail - no conection\n");
return NULL;
}
GSocket *socket = g_socket_connection_get_socket(_s52_connection);
if (NULL == socket) {
g_print("s52ais:_s52_send_cmd(): fail - no socket\n");
return NULL;
}
GError *error = NULL;
guint n = 0;
// build a full JSON object
n = g_snprintf(_response, BUFSZ, "{\"id\":%i,\"method\":\"%s\",\"params\":[%s]}\n", _request_id++, command, params);
if (n > BUFSZ) {
g_print("s52ais:_s52_send_cmd():g_snprintf(): no space in buffer\n");
return NULL;
}
_response[n] = '\0';
//g_print("s52ais:_s52_send_cmd(): sending:%s", _response);
gssize szsnd = g_socket_send_with_blocking(socket, _response, n, FALSE, NULL, &error);
if ((NULL!=error) || (0==szsnd) || (-1==szsnd)) {
// 0 - connection was closed by the peer
// -1 - on error
if (NULL == error)
g_print("s52ais:_s52_send_cmd():ERROR:g_socket_send_with_blocking(): connection close [%s]\n", _response);
else
g_print("s52ais:_s52_send_cmd():ERROR:g_socket_send_with_blocking(): %s [%i:%s]\n", error->message, error->code, _response);
_s52_connection = NULL; // reset connection
return NULL;
}
//g_print("s52ais:_s52_send_cmd(): sended:%s", _response);
// wait response - blocking socket
int szrcv = g_socket_receive_with_blocking(socket, _response, BUFSZ, TRUE, NULL, &error);
//gssize szrcv = g_socket_receive_with_blocking(socket, _response, BUFSZ, FALSE, NULL, &error);
//if ((NULL!=error) || (0==szrcv) || (-1==szrcv)) {
if (NULL != error) {
g_print("s52ais:_s52_send_cmd():ERROR:g_socket_receive_with_blocking(): %s [%i:%s]\n", error->message, error->code, _response);
_s52_connection = NULL; // reset connection
return NULL;
}
if ((0==szrcv) || (-1==szrcv)) {
// 0 - connection was closed by the peer
// -1 - on error
g_print("s52ais:_s52_send_cmd():ERROR:g_socket_receive_with_blocking(): szrcv:%i\n", szrcv);
_s52_connection = NULL; // reset connection
return NULL;
}
_response[szrcv] = '\0';
//g_print("s52ais:_s52_send_cmd(): received:%s\n", _response);
gchar *result = g_strrstr(_response, "result");
if (NULL == result) {
g_print("s52ais:_s52_send_cmd():no result [_response:'%s']\n", _response);
return NULL;
}
return _response;
}
