Hi everyone,

It is the first time I play with shared libraries and I have an issue about the signals and the slots.
I have an interface ServiceServer that defines two functions :
Qt Code: 
  1. void ServiceServer::emitInitReady(bool is_error, Client* client)
  2. {
  3.    qDebug() << "emit init ready";
  4.    emit initReady(is_error, client);
  5.    qDebug() << "emited";
  6. }
  7.  
  8. void ServiceServer::wrappedInit(bool is_error, Client* client)
  9. {
  10.    qDebug() << "wrapped init";
  11.    if(is_error)
  12.    {
  13.       qDebug() << " error";
  14.       initError(client);
  15.    }
  16.    else
  17.    {
  18.       qDebug() << " ok";
  19.       init(client);
  20.    }
  21.    reset();
  22. }
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Please note that :
Qt Code: 
  1. bool ok = connect(this, SIGNAL(initReady(bool, Client*)), this, SLOT(wrappedInit(bool, Client*)));
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returns true.

For a "built with the application " implementation, it works and outputs :
Qt Code: 
  1. init 
  2. emit init ready 
  3. wrapped init 
  4.  ok 
  5. //some stuff
  6. emited
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but for an implementation that is a plugin : it does not work since it outputs that :
Qt Code: 
  1. init 
  2. emit init ready 
  3. emited
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So the slot was not called.

the plugin .pro file is :
Qt Code: 
  1. TEMPLATE = lib
  2. TARGET = Chat
  3. DEPENDPATH += .
  4. INCLUDEPATH += .
  5.  
  6. QT += network 
  7. QT += sql
  8.  
  9. CONFIG += qt debug dll
  10.  
  11. # Input
  12. HEADERS += Chat.h \
  13.            ../client/ServiceGlobal.h \
  14.            ../client/ServiceClient.h \
  15.            ../common/Service.h \
  16.            ../client/ConfigEntry.h \
  17.            ../common/WrapperHelper.h \
  18.            ../common/Wrapper.h \
  19.            ../common/Rights.h \
  20.            ../common/WrapperManager.h \
  21.            ../common/ServicesContainer.h \
  22.            ../client/SingletonFactoryClient.h \
  23.            ../client/WrapperManagerClient.h \
  24.            ../client/Room0Client.h \
  25.            ../common/Room0.h \
  26.            ../server/ServiceServer.h \
  27.            ../server/InWrapperServer.h \
  28.            ../server/CircularBuffer.h
  29.  
  30. SOURCES += Chat.cpp \
  31.            ../client/ServiceGlobal.cpp \
  32.            ../client/ServiceClient.cpp \
  33.            ../client/ConfigEntry.cpp \
  34.            ../common/Wrapper.cpp \
  35.            ../common/WrapperManager.cpp \
  36.            ../client/SingletonFactoryClient.cpp \
  37.            ../client/WrapperManagerClient.cpp \
  38.            ../client/Room0Client.cpp \
  39.            ../server/ServiceServer.cpp \
  40.            ../server/InWrapperServer.cpp
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I don't know if the problem has something to do with the shared library but this example make me think that yes.
Could someone explain me where am I wrong ? Maybe, it is about (un)exported symbols but I run linux and I think that those problems are windows specific.
Please ask me for more details if I am not clear enough.
Thanks