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 880 of file channel.cpp.hpp.

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

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

Referenced by showPixels().

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