GUAC-1056: Do not wait for messages if data is within the RFB client buffer.
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@ -37,13 +37,39 @@
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#include <stdlib.h>
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/**
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* Waits until data is available to be read from the given rfbClient, and thus
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* a call to HandleRFBServerMessages() should not block. If the timeout elapses
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* before data is available, zero is returned.
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*
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* @param rfb_client
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* The rfbClient to wait for.
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*
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* @param timeout
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* The maximum amount of time to wait, in microseconds.
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*
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* @returns
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* A positive value if data is available, zero if the timeout elapses
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* before data becomes available, or a negative value on error.
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*/
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static int guac_vnc_wait_for_messages(rfbClient* rfb_client, int timeout) {
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/* Do not explicitly wait while data is on the buffer */
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if (rfb_client->buffered)
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return 1;
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/* If no data on buffer, wait for data on socket */
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return WaitForMessage(rfb_client, timeout);
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}
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int vnc_guac_client_handle_messages(guac_client* client) {
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vnc_guac_client_data* guac_client_data = (vnc_guac_client_data*) client->data;
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rfbClient* rfb_client = guac_client_data->rfb_client;
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/* Initially wait for messages */
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int wait_result = WaitForMessage(rfb_client, 1000000);
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int wait_result = guac_vnc_wait_for_messages(rfb_client, 1000000);
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guac_timestamp frame_start = guac_timestamp_current();
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while (wait_result > 0) {
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@ -62,7 +88,7 @@ int vnc_guac_client_handle_messages(guac_client* client) {
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/* Wait again if frame remaining */
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if (frame_remaining > 0)
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wait_result = WaitForMessage(rfb_client,
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wait_result = guac_vnc_wait_for_messages(rfb_client,
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GUAC_VNC_FRAME_TIMEOUT*1000);
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else
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break;
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