bool Module::Load()
{
wxLogNull logNo;
if (mLib->IsLoaded()) {
if (mDispatch) {
return true;
}
return false;
}
if (!mLib->Load(mName, wxDL_LAZY)) {
return false;
}
mDispatch = (fnModuleDispatch) mLib->GetSymbol(wxT(ModuleDispatchName));
if (!mDispatch) {
return false;
}
bool res = ((mDispatch(ModuleInitialize))!=0);
if (res) {
return true;
}
mDispatch = NULL;
return false;
}
int Module::Dispatch(ModuleDispatchTypes type)
{
if (mLib->IsLoaded()) {
return mDispatch(type);
}
return 0;
}
void Module::Unload()
{
if (mLib->IsLoaded()) {
mDispatch(ModuleTerminate);
}
mLib->Unload();
}
int Module::Dispatch(ModuleDispatchTypes type)
{
if (mLib->IsLoaded())
if( mDispatch != NULL )
return mDispatch(type);
return 0;
}
bool Module::Load()
{
if (mLib->IsLoaded()) {
if (mDispatch) {
return true;
}
return false;
}
if (!mLib->Load(mName, wxDL_LAZY)) {
return false;
}
// Check version string matches. (For now, they must match exactly)
tVersionFn versionFn = (tVersionFn)(mLib->GetSymbol(wxT(versionFnName)));
if (versionFn == NULL){
wxString ShortName = wxFileName( mName ).GetName();
wxMessageBox(wxString::Format(_("The module %s does not provide a version string.\nIt will not be loaded."), ShortName.c_str()), _("Module Unsuitable"));
wxLogMessage(wxString::Format(_("The module %s does not provide a version string. It will not be loaded."), mName.c_str()));
mLib->Unload();
return false;
}
wxString moduleVersion = versionFn();
if( !moduleVersion.IsSameAs(AUDACITY_VERSION_STRING)) {
wxString ShortName = wxFileName( mName ).GetName();
wxMessageBox(wxString::Format(_("The module %s is matched with Audacity version %s.\n\nIt will not be loaded."), ShortName.c_str(), moduleVersion.c_str()), _("Module Unsuitable"));
wxLogMessage(wxString::Format(_("The module %s is matched with Audacity version %s. It will not be loaded."), mName.c_str(), moduleVersion.c_str()));
mLib->Unload();
return false;
}
mDispatch = (fnModuleDispatch) mLib->GetSymbol(wxT(ModuleDispatchName));
if (!mDispatch) {
// Module does not provide a dispatch function...
// That can be OK, as long as we never try to call it.
return true;
}
// However if we do have it and it does not work,
// then the module is bad.
bool res = ((mDispatch(ModuleInitialize))!=0);
if (res) {
return true;
}
mDispatch = NULL;
return false;
}
void ServerCore::Serve()
{
fd_set sockets;
struct timeval timeout;
int max_desc;
int readsocks;
while(mRunning) {
/* Build select list */
FD_ZERO(&sockets);
FD_SET(mListener, &sockets);
max_desc = mListener;
sem_wait(&mMutex);
map<unsigned int, ClientConnection*>::iterator it = mClientMap.begin();
while(it != mClientMap.end())
{
int fd = (*it).second->getFd();
FD_SET(fd, &sockets);
if (fd>max_desc) {
max_desc = fd;
}
it++;
}
sem_post(&mMutex);
timeout.tv_sec = 1;
timeout.tv_usec = 0;
readsocks = select(max_desc+1, &sockets, (fd_set*)0, (fd_set*)0,
&timeout);
if (readsocks < 0) {
printf("ERROR: select failed");
break;
}
if(readsocks) {
if(FD_ISSET(mListener, &sockets)) {
/* New connection */
int conn = accept(mListener, NULL, NULL);
if (mClientMap.size()<MAX_CLIENTS) {
ClientConnection* client = new ClientConnection(conn);
mClientMap[mClientCount++] = client;
} else {
close(conn);
}
}
sem_wait(&mMutex);
it = mClientMap.begin();
while(it != mClientMap.end())
{
ClientConnection* client = (*it).second;
if (FD_ISSET(client->getFd(), &sockets)) {
string data;
int status = client->Read(data);
if (status<0) {
/* Error , close */
map<unsigned int, ClientConnection*>::iterator it2 = it;
it2++;
delete client;
close(client->getFd());
mClientMap.erase(it);
it = it2;
continue;
}
if (status>0) {
if (mDispatch) {
/* Release the mutex so dispatched calls
* can write back to socket.
* This is safe, since this is the only thread
* that actually modifies the client connection map
*/
sem_post(&mMutex);
mDispatch((*it).first,data);
sem_wait(&mMutex);
}
}
}
it++;
}
sem_post(&mMutex);
}
}
}
