小编Erw*_* J.的帖子

我正在尝试将光标设置为手表.问题是gdk_set_cursor()需要一个gdk_window.如何在C中获取gtk_window的gdk_window？我见过gtkmm和pygtk的例子,但我找不到相应的C函数.

我正在编写一个音频应用程序,它有多个线程产生声音,一个线程混合声音并将它们发送到声卡.我已经尝试了几种同步线程的方法,包括信号和线程安全队列在内的"正确"方式,但它们都太慢了.所以现在我为每个生产者使用bool来指示它的队列是否已满.它似乎工作得很好(32个线程的5ms延迟),但这样做是否安全？

class PlayThreadParameters
{
    public Queue<Samples> queue;
    public bool isOutputQueueFull;
}

制片人看起来像这样:

  public void PolyPlayThread(object o)
    {
        var playThreadParameters = (PlayThreadParameters)o;
        while (isPlaying)
        {
            while (playThreadParameters.isOutputQueueFull)
            {
                if (!isPlaying)
                    return;
                Thread.Sleep(1);
            }

        ... //fill output queue

        playThreadParameters.isOutputQueueFull = true;
    }
}

消费者看起来像这样(由Naudio的一个单独的线程调用):

public override int Read(byte[] array, int offset, int count)
        {

                for (int v = 0; v < playThreadParameters.Length; v++)
                    while (!playThreadParameters[v].isOutputQueueFull)
                    {
                        if (!isPlaying)
                            return 0;
                        Thread.Sleep(1); 
                    }

                ... //mix the samples from the outputqueues

                for (int v …

我在C++中使用C风格的GTK函数,我无法弄清楚如何设置主窗口的光标.

我正在尝试链接一个使用GSL的开源项目,我在libgsl中获得了未定义的引用.我正在使用eclipse,并且已经将-lgslcblas -lgsl添加到库设置中.我错过了什么？

g++ -L/home/erwin/ochack/bin/opencog/spatial -L/home/erwin/ochack/bin/opencog/persist/sql -L/home/erwin/ochack/bin/opencog/guile -L/home/erwin/ochack/bin/opencog/util -L/home/erwin/ochack/bin/opencog/persist/xml -o "ocserver"  ./opencog/server/Agent.o ./opencog/server/BaseServer.o ./opencog/server/BuiltinRequestsModule.o ./opencog/server/CogServer.o ./opencog/server/CogServerMain.o ./opencog/server/ConsoleSocket.o ./opencog/server/DataRequest.o ./opencog/server/ExitRequest.o ./opencog/server/HelpRequest.o ./opencog/server/ListRequest.o ./opencog/server/LoadModuleRequest.o ./opencog/server/LoadRequest.o ./opencog/server/NetworkServer.o ./opencog/server/Request.o ./opencog/server/SaveRequest.o ./opencog/server/ServerSocket.o ./opencog/server/ShutdownRequest.o ./opencog/server/SleepRequest.o ./opencog/server/SystemActivityTable.o ./opencog/server/UnloadModuleRequest.o  ./opencog/atomspace/Atom.o ./opencog/atomspace/AtomSpace.o ./opencog/atomspace/AtomSpaceAsync.o ./opencog/atomspace/AtomSpaceImpl.o ./opencog/atomspace/AtomSpaceInit.o ./opencog/atomspace/AtomTable.o ./opencog/atomspace/AttentionBank.o ./opencog/atomspace/AttentionValue.o ./opencog/atomspace/ClassServer.o ./opencog/atomspace/CompositeTruthValue.o ./opencog/atomspace/CountTruthValue.o ./opencog/atomspace/FixedIntegerIndex.o ./opencog/atomspace/Handle.o ./opencog/atomspace/HandleEntry.o ./opencog/atomspace/HandleIterator.o ./opencog/atomspace/HandleSeqIndex.o ./opencog/atomspace/HandleSet.o ./opencog/atomspace/HandleTemporalPair.o ./opencog/atomspace/HandleTemporalPairEntry.o ./opencog/atomspace/HandleToTemporalEntryMap.o ./opencog/atomspace/ImportanceIndex.o ./opencog/atomspace/IndefiniteTruthValue.o ./opencog/atomspace/Link.o ./opencog/atomspace/LinkIndex.o ./opencog/atomspace/NameIndex.o ./opencog/atomspace/Node.o ./opencog/atomspace/NodeIndex.o ./opencog/atomspace/NullTruthValue.o ./opencog/atomspace/PredicateIndex.o ./opencog/atomspace/SimpleTruthValue.o ./opencog/atomspace/SpaceServer.o ./opencog/atomspace/StatisticsMonitor.o ./opencog/atomspace/StringIndex.o ./opencog/atomspace/TLB.o ./opencog/atomspace/TargetTypeIndex.o ./opencog/atomspace/Temporal.o ./opencog/atomspace/TemporalEntry.o ./opencog/atomspace/TemporalMap.o ./opencog/atomspace/TemporalTable.o ./opencog/atomspace/TemporalToHandleSetMap.o ./opencog/atomspace/TimeServer.o ./opencog/atomspace/Trail.o ./opencog/atomspace/TruthValue.o ./opencog/atomspace/TypeIndex.o ./opencog/atomspace/VersionHandle.o ./opencog/atomspace/ZMQMessages.pb.o   -lboost_filesystem -lpersist -lsmob -lgslcblas …