/////////////////////////////////////////////////////////////////////////////
// Name: server.cpp
-// Purpose: DDE sample: server
+// Purpose: IPC sample: server
// Author: Julian Smart
-// Modified by:
+// Modified by: Jurgen Doornik
// Created: 25/01/99
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#ifndef WX_PRECOMP
-#include "wx/wx.h"
+ #include "wx/wx.h"
#endif
// Settings common to both executables: determines whether
// we're using TCP/IP or real DDE.
+#include "ipcsetup.h"
-#include "ddesetup.h"
-
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
-#include "mondrian.xpm"
+#if !defined(__WXMSW__) && !defined(__WXPM__)
+ #include "../sample.xpm"
#endif
#include "server.h"
+#include "wx/textdlg.h"
+#include "wx/datetime.h"
-MyFrame *frame = NULL;
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
IMPLEMENT_APP(MyApp)
-char ipc_buffer[4000];
-MyConnection *the_connection = NULL;
-MyServer *my_server ;
+BEGIN_EVENT_TABLE(MyFrame, wxFrame)
+ EVT_CLOSE( MyFrame::OnClose )
+
+ EVT_BUTTON( ID_START, MyFrame::OnStart )
+ EVT_CHOICE( ID_SERVERNAME, MyFrame::OnServerName )
+ EVT_BUTTON( ID_DISCONNECT, MyFrame::OnDisconnect )
+ EVT_BUTTON( ID_ADVISE, MyFrame::OnAdvise )
+END_EVENT_TABLE()
+
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// MyApp
+// ----------------------------------------------------------------------------
bool MyApp::OnInit()
{
- // Create the main frame window
- frame = new MyFrame(NULL, "Server", wxDefaultPosition, wxSize(400, 500));
+ if ( !wxApp::OnInit() )
+ return false;
+
+ // Create the main frame window
+ m_frame = new MyFrame(NULL, "Server");
+ m_frame->Show(true);
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------
+
+// Define my frame constructor
+MyFrame::MyFrame(wxFrame *frame, const wxString& title)
+ : wxFrame(frame, wxID_ANY, title, wxDefaultPosition, wxSize(400, 300))
+{
+#if wxUSE_STATUSBAR
+ CreateStatusBar();
+#endif // wxUSE_STATUSBAR
+
+ SetIcon(wxICON(sample));
+
+ m_server = NULL;
+
+ wxPanel * const panel = new wxPanel(this);
- frame->CreateStatusBar();
+ wxBoxSizer * const sizerMain = new wxBoxSizer( wxVERTICAL );
- // Give it an icon
- frame->SetIcon(wxICON(mondrian));
+ wxFlexGridSizer * const sizerCmds = new wxFlexGridSizer( 2, 0, 0 );
+ sizerCmds->AddGrowableCol( 1 );
- // Make a menubar
- wxMenu *file_menu = new wxMenu;
+ wxButton *btn;
- file_menu->Append(SERVER_QUIT, "&Exit");
+ btn = new wxButton(panel, ID_START, "&Start Server");
+ sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
- wxMenuBar *menu_bar = new wxMenuBar;
+ const wxString choices[] = { IPC_SERVICE, "..." };
+ wxChoice * const choice = new wxChoice
+ (
+ panel,
+ ID_SERVERNAME,
+ wxDefaultPosition, wxSize(100, -1),
+ WXSIZEOF(choices), choices
+ );
+ sizerCmds->Add(choice, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
- menu_bar->Append(file_menu, "&File");
+ btn = new wxButton(panel, ID_DISCONNECT, "&Disconnect Client");
+ sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
+ sizerCmds->AddSpacer(20);
- // Associate the menu bar with the frame
- frame->SetMenuBar(menu_bar);
+ btn = new wxButton( panel, ID_ADVISE, "&Advise");
+ sizerCmds->Add(btn, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
+ sizerCmds->AddSpacer(20);
- // Make a panel
- frame->panel = new wxPanel(frame, 0, 0, 400, 250);
- wxListBox *list = new wxListBox(frame->panel, SERVER_LISTBOX,
- wxPoint(5, 5), wxSize(150, 120));
- list->Append("Apple");
- list->Append("Pear");
- list->Append("Orange");
- list->Append("Banana");
- list->Append("Fruit");
+ sizerMain->Add(sizerCmds, 0, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
- frame->panel->Fit();
- frame->Fit();
+ wxStaticBoxSizer * const
+ sizerLog = new wxStaticBoxSizer(wxVERTICAL, panel, "Server &log");
- wxString server_name = "4242";
- if (argc > 1)
- server_name = argv[1];
+ wxTextCtrl * const textLog = new wxTextCtrl
+ (
+ panel,
+ wxID_ANY,
+ "",
+ wxDefaultPosition, wxSize(500, 140),
+ wxTE_MULTILINE
+ );
+ sizerLog->Add(textLog, 1, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
- // Create a new server
- my_server = new MyServer;
- my_server->Create(server_name);
- frame->Show(TRUE);
+ sizerMain->Add(sizerLog, 1, wxGROW|wxALIGN_CENTER_VERTICAL|wxALL, 5);
- return TRUE;
+ panel->SetSizer(sizerMain);
+ sizerMain->SetSizeHints(panel);
+ SetClientSize(panel->GetSize());
+
+ GetServername()->SetSelection(0);
+ wxLogTextCtrl *logWindow = new wxLogTextCtrl(textLog);
+ delete wxLog::SetActiveTarget(logWindow);
+ wxLogMessage("Click on Start to start the server");
+ UpdateUI();
}
-BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU(SERVER_QUIT, MyFrame::OnExit)
- EVT_CLOSE(MyFrame::OnCloseWindow)
- EVT_LISTBOX(SERVER_LISTBOX, MyFrame::OnListBoxClick)
-END_EVENT_TABLE()
+void MyFrame::UpdateUI()
+{
+ GetStart()->Enable(m_server == NULL);
+ GetServername()->Enable(m_server == NULL);
+ GetAdvise()->Enable(m_server && m_server->CanAdvise());
+ GetDisconnect()->Enable(m_server && m_server->IsConnected());
+}
-// Define my frame constructor
-MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
- wxFrame(frame, -1, title, pos, size)
+void MyFrame::OnClose(wxCloseEvent& event)
{
- panel = NULL;
+ if (m_server)
+ {
+ delete m_server;
+ m_server = NULL;
+ }
+ event.Skip();
}
-void MyFrame::OnExit(wxCommandEvent& event)
+void MyFrame::OnStart(wxCommandEvent& WXUNUSED(event))
{
- if (my_server)
- delete my_server;
- this->Destroy();
+ // Create a new server
+ m_server = new MyServer;
+ wxString servername = GetServername()->GetStringSelection();
+ if (m_server->Create(servername))
+ {
+ wxLogMessage("Server %s started", servername);
+ #if wxUSE_DDE_FOR_IPC
+ wxLogMessage("Server uses DDE");
+ #else // !wxUSE_DDE_FOR_IPC
+ wxLogMessage("Server uses TCP");
+ #endif // wxUSE_DDE_FOR_IPC/!wxUSE_DDE_FOR_IPC
+ }
+ else
+ {
+ wxLogMessage("Server %s failed to start", servername);
+ delete m_server;
+ m_server = NULL;
+ }
+ UpdateUI();
}
-// Set the client process's listbox to this item
-void MyFrame::OnListBoxClick(wxCommandEvent& event)
+void MyFrame::OnServerName( wxCommandEvent& WXUNUSED(event) )
{
- wxListBox* listBox = (wxListBox*) panel->FindWindow(SERVER_LISTBOX);
- if (listBox)
+ if ( GetServername()->GetStringSelection() == "..." )
{
- wxString value = listBox->GetStringSelection();
- if (the_connection)
+ wxString s = wxGetTextFromUser
+ (
+ "Specify the name of the server",
+ "Server Name",
+ "",
+ this
+ );
+
+ if ( !s.empty() && s != IPC_SERVICE )
{
- the_connection->Advise("Item", (char*) (const char*) value);
+ GetServername()->Insert(s, 0);
+ GetServername()->SetSelection(0);
}
}
}
-void MyFrame::OnCloseWindow(wxCloseEvent& event)
+void MyFrame::Disconnect()
{
- if (my_server)
- delete my_server;
- this->Destroy();
+ m_server->Disconnect();
+ UpdateUI();
}
-BEGIN_EVENT_TABLE(IPCDialogBox, wxDialog)
- EVT_BUTTON(SERVER_QUIT_BUTTON, IPCDialogBox::OnQuit)
-END_EVENT_TABLE()
+void MyFrame::OnDisconnect(wxCommandEvent& WXUNUSED(event))
+{
+ Disconnect();
+}
-IPCDialogBox::IPCDialogBox(wxFrame *parent, const wxString& title,
- const wxPoint& pos, const wxSize& size, MyConnection *the_connection):
- wxDialog(parent, -1, title, pos, size)
+void MyFrame::OnAdvise(wxCommandEvent& WXUNUSED(event))
{
- connection = the_connection;
- (void)new wxButton(this, SERVER_QUIT_BUTTON, "Quit this connection", wxPoint(5, 5));
- Fit();
+ m_server->Advise();
}
-void IPCDialogBox::OnQuit(wxCommandEvent& event)
+// ----------------------------------------------------------------------------
+// MyServer
+// ----------------------------------------------------------------------------
+
+MyServer::MyServer() : wxServer()
{
- connection->Disconnect();
- delete connection;
+ m_connection = NULL;
+}
+
+MyServer::~MyServer()
+{
+ Disconnect();
}
wxConnectionBase *MyServer::OnAcceptConnection(const wxString& topic)
{
- if (strcmp(topic, "STDIO") != 0 && strcmp(topic, "IPC TEST") == 0)
- return new MyConnection(ipc_buffer, 4000);
- else
+ wxLogMessage("OnAcceptConnection(\"%s\")", topic);
+
+ if ( topic == IPC_TOPIC )
+ {
+ m_connection = new MyConnection();
+ wxGetApp().GetFrame()->UpdateUI();
+ wxLogMessage("Connection accepted");
+ return m_connection;
+ }
+ //else: unknown topic
+
+ wxLogMessage("Unknown topic, connection refused");
return NULL;
}
-MyConnection::MyConnection(char *buf, int size):wxConnection(buf, size)
+void MyServer::Disconnect()
{
- dialog = new IPCDialogBox(frame, "Connection", wxPoint(100, 100), wxSize(500, 500), this);
- dialog->Show(TRUE);
- the_connection = this;
+ if ( m_connection )
+ {
+ delete m_connection;
+ m_connection = NULL;
+ wxGetApp().GetFrame()->UpdateUI();
+ wxLogMessage("Disconnected client");
+ }
}
-MyConnection::~MyConnection(void)
+void MyServer::Advise()
{
- if (the_connection)
- {
- dialog->Destroy();
- the_connection = NULL;
- }
+ if ( CanAdvise() )
+ {
+ const wxDateTime now = wxDateTime::Now();
+
+ m_connection->Advise(m_connection->m_advise, now.Format());
+
+ const wxString s = now.FormatTime() + " " + now.FormatDate();
+ m_connection->Advise(m_connection->m_advise, s.mb_str(), wxNO_LEN);
+
+#if wxUSE_DDE_FOR_IPC
+ wxLogMessage("DDE Advise type argument cannot be wxIPC_PRIVATE. "
+ "The client will receive it as wxIPC_TEXT, "
+ " and receive the correct no of bytes, "
+ "but not print a correct log entry.");
+#endif
+ char bytes[3] = { '1', '2', '3' };
+ m_connection->Advise(m_connection->m_advise, bytes, 3, wxIPC_PRIVATE);
+ }
}
-bool MyConnection::OnExecute(const wxString& topic, char *data, int size, wxIPCFormat format)
+// ----------------------------------------------------------------------------
+// MyConnection
+// ----------------------------------------------------------------------------
+
+bool
+MyConnection::OnExecute(const wxString& topic,
+ const void *data,
+ size_t size,
+ wxIPCFormat format)
{
- char buf[300];
- sprintf(buf, "Execute command: %s", data);
- frame->SetStatusText(buf);
- return TRUE;
+ Log("OnExecute", topic, "", data, size, format);
+ return true;
}
-bool MyConnection::OnPoke(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format)
+bool
+MyConnection::OnPoke(const wxString& topic,
+ const wxString& item,
+ const void *data,
+ size_t size,
+ wxIPCFormat format)
{
- char buf[300];
- sprintf(buf, "Poke command: %s", data);
- frame->SetStatusText(buf);
- return TRUE;
+ Log("OnPoke", topic, item, data, size, format);
+ return wxConnection::OnPoke(topic, item, data, size, format);
}
-char *MyConnection::OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format)
+const void *
+MyConnection::OnRequest(const wxString& topic,
+ const wxString& item,
+ size_t *size,
+ wxIPCFormat format)
{
- return "Here, have your data, client!";
+ *size = 0;
+
+ wxString s,
+ afterDate;
+ if ( item.StartsWith("Date", &afterDate) )
+ {
+ const wxDateTime now = wxDateTime::Now();
+
+ if ( afterDate.empty() )
+ {
+ s = now.Format();
+ *size = wxNO_LEN;
+ }
+ else if ( afterDate == "+len" )
+ {
+ s = now.FormatTime() + " " + now.FormatDate();
+ *size = strlen(s.mb_str()) + 1;
+ }
+ }
+ else if ( item == "bytes[3]" )
+ {
+ s = "123";
+ *size = 3;
+ }
+
+ if ( !*size )
+ {
+ wxLogMessage("Unknown request for \"%s\"", item);
+ return NULL;
+ }
+
+ // store the data pointer to which we return in a member variable to ensure
+ // that the pointer remains valid even after we return
+ m_requestData = s.mb_str();
+ const void * const data = m_requestData;
+ Log("OnRequest", topic, item, data, *size, format);
+ return data;
}
bool MyConnection::OnStartAdvise(const wxString& topic, const wxString& item)
{
- return TRUE;
+ wxLogMessage("OnStartAdvise(\"%s\", \"%s\")", topic, item);
+ wxLogMessage("Returning true");
+ m_advise = item;
+ wxGetApp().GetFrame()->UpdateUI();
+ return true;
}
+bool MyConnection::OnStopAdvise(const wxString& topic, const wxString& item)
+{
+ wxLogMessage("OnStopAdvise(\"%s\",\"%s\")", topic, item);
+ wxLogMessage("Returning true");
+ m_advise.clear();
+ wxGetApp().GetFrame()->UpdateUI();
+ return true;
+}
+
+bool
+MyConnection::DoAdvise(const wxString& item,
+ const void *data,
+ size_t size,
+ wxIPCFormat format)
+{
+ Log("Advise", "", item, data, size, format);
+ return wxConnection::DoAdvise(item, data, size, format);
+}
+
+bool MyConnection::OnDisconnect()
+{
+ wxLogMessage("OnDisconnect()");
+ wxGetApp().GetFrame()->Disconnect();
+ return true;
+}
projects / wxWidgets.git / blobdiff