waitForInUseBuffer()

bool fl::Channel::waitForInUseBuffer ( )

private

Cold helper for showPixels() when mChannelData is still in use by the driver: warns and waits for READY (#4566).

Returns

false if showPixels() must drop the frame

Definition at line 857 of file channel.cpp.hpp.

                                              {
    FL_WARN("Channel '%s': showPixels() called while mChannelData is in use by driver, attempting to wait", mName);
    auto driver = mDriver.lock();
    if (!driver) {
        FL_ERROR("Channel '%s': No driver bound yet the mChannelData is in use - cannot transmit", mName);
        return false;
    }
    // wait until the driver is in a READY state.
    bool ok = driver->waitForReady();
    if (!ok) {
        FL_ERROR("Channel '%s': Timeout occurred while waiting for driver to become READY", mName);
        return false;
    }
    FL_WARN("Channel '%s': Engine became READY after waiting", mName);
    return true;
}

References FL_ERROR, fl::FL_NO_EXCEPT, FL_WARN, mDriver, and mName.

Referenced by showPixels().

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