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1. Pause()/Resume() implemented for wxMSW

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2. crash on startup in the sample corrected


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1267 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
1998-12-27 00:54:53 +00:00
parent f3855ef064
commit a6b0bd49c7
3 changed files with 247 additions and 128 deletions
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225
samples/thread/test.cpp
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@@ -31,66 +31,80 @@
// Define a new application type
class MyApp: public wxApp
{
public:
public:
bool OnInit(void);
};
WX_DEFINE_ARRAY(wxThread *,wxArrayThread);
WX_DEFINE_ARRAY(wxThread *, wxArrayThread);
// Define a new frame type
class MyFrame: public wxFrame
{
public:
public:
// ctor
MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
public:
// operations
void WriteText(const wxString& text) { m_txtctrl->WriteText(text); }
// callbacks
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnStartThread(wxCommandEvent& event);
void OnStopThread(wxCommandEvent& event);
void OnPauseThread(wxCommandEvent& event);
void OnResumeThread(wxCommandEvent& event);
void OnSize(wxSizeEvent &event);
bool OnClose(void) { return TRUE; }
public:
wxArrayThread m_threads;
public:
wxArrayThread m_threads;
wxTextCtrl *m_txtctrl;
DECLARE_EVENT_TABLE()
private:
wxTextCtrl *m_txtctrl;
DECLARE_EVENT_TABLE()
};
class MyThread: public wxThread
{
public:
public:
MyThread(MyFrame *frame);
void *Entry();
public:
public:
size_t m_count;
MyFrame *m_frame;
};
MyThread::MyThread(MyFrame *frame)
: wxThread()
: wxThread()
{
m_frame = frame;
m_count = 0;
m_frame = frame;
}
void *MyThread::Entry()
{
wxString text;
wxString text;
DeferDestroy(TRUE);
while (1) {
TestDestroy();
wxMutexGuiEnter();
text.Printf("Thread 0x%x: Hello !\n", GetID());
DeferDestroy(TRUE);
text.Printf("[%u] Thread 0x%x here.\n", ++m_count, GetID());
m_frame->WriteText(text);
while (1) {
TestDestroy();
wxMutexGuiEnter();
m_frame->m_txtctrl->WriteText(text);
wxMutexGuiLeave();
wxSleep(1);
}
return NULL;
wxMutexGuiLeave();
wxSleep(1);
}
return NULL;
}
// ID for the menu commands
@@ -100,14 +114,17 @@ void *MyThread::Entry()
#define TEST_START_THREAD 103
#define TEST_STOP_THREAD 104
#define TEST_PAUSE_THREAD 105
#define TEST_RESUME_THREAD 106
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(TEST_QUIT, MyFrame::OnQuit)
EVT_MENU(TEST_ABOUT, MyFrame::OnAbout)
EVT_MENU(TEST_START_THREAD, MyFrame::OnStartThread)
EVT_MENU(TEST_STOP_THREAD, MyFrame::OnStopThread)
EVT_MENU(TEST_PAUSE_THREAD, MyFrame::OnPauseThread)
EVT_SIZE(MyFrame::OnSize)
EVT_MENU(TEST_QUIT, MyFrame::OnQuit)
EVT_MENU(TEST_ABOUT, MyFrame::OnAbout)
EVT_MENU(TEST_START_THREAD, MyFrame::OnStartThread)
EVT_MENU(TEST_STOP_THREAD, MyFrame::OnStopThread)
EVT_MENU(TEST_PAUSE_THREAD, MyFrame::OnPauseThread)
EVT_MENU(TEST_RESUME_THREAD, MyFrame::OnResumeThread)
EVT_SIZE(MyFrame::OnSize)
END_EVENT_TABLE()
// Create a new application object
@@ -116,93 +133,117 @@ IMPLEMENT_APP (MyApp)
// `Main program' equivalent, creating windows and returning main app frame
bool MyApp::OnInit(void)
{
// Create the main frame window
MyFrame *frame = new MyFrame((wxFrame *) NULL, (char *) "Minimal wxWindows App", 50, 50, 450, 340);
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(TEST_ABOUT, "&About");
file_menu->Append(TEST_QUIT, "E&xit");
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
wxMenu *thread_menu = new wxMenu;
thread_menu->Append(TEST_START_THREAD, "Start a new thread");
thread_menu->Append(TEST_STOP_THREAD, "Stop a running thread");
thread_menu->Append(TEST_PAUSE_THREAD, "Pause a running thread");
menu_bar->Append(thread_menu, "Thread");
frame->SetMenuBar(menu_bar);
// Make a panel with a message
wxPanel *panel = new wxPanel( frame, -1, wxPoint(0, 0), wxSize(400, 200), wxTAB_TRAVERSAL );
(void)new wxStaticText( panel, -1, "Log window", wxPoint(10,10) );
frame->m_txtctrl = new wxTextCtrl(panel, -1, "", wxPoint(10,30), wxSize(390, 190),
wxTE_MULTILINE);
// Show the frame
frame->Show(TRUE);
SetTopWindow(frame);
return TRUE;
// Create the main frame window
MyFrame *frame = new MyFrame((wxFrame *) NULL, "wxWindows thread sample",
50, 50, 450, 340);
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(TEST_ABOUT, "&About");
file_menu->Append(TEST_QUIT, "E&xit");
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
wxMenu *thread_menu = new wxMenu;
thread_menu->Append(TEST_START_THREAD, "Start a new thread");
thread_menu->Append(TEST_STOP_THREAD, "Stop a running thread");
thread_menu->AppendSeparator();
thread_menu->Append(TEST_PAUSE_THREAD, "Pause a running thread");
thread_menu->Append(TEST_RESUME_THREAD, "Resume suspended thread");
menu_bar->Append(thread_menu, "Thread");
frame->SetMenuBar(menu_bar);
// Show the frame
frame->Show(TRUE);
SetTopWindow(frame);
return TRUE;
}
// My frame constructor
MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h):
wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
{}
MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h)
: wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
{
wxPanel *panel = new wxPanel(this, -1, wxPoint(0, 0), wxSize(400, 200),
wxTAB_TRAVERSAL );
m_txtctrl = new wxTextCtrl(panel, -1, "", wxPoint(10,30), wxSize(390, 190),
wxTE_MULTILINE);
(void)new wxStaticText(panel, -1, "Log window", wxPoint(10,10));
}
void MyFrame::OnStartThread(wxCommandEvent& WXUNUSED(event) )
{
MyThread *thread = new MyThread(this);
thread->Create();
m_threads.Add(thread);
MyThread *thread = new MyThread(this);
thread->Create();
m_threads.Add(thread);
}
void MyFrame::OnStopThread(wxCommandEvent& WXUNUSED(event) )
{
int no_thrd = m_threads.Count()-1;
int no_thrd = m_threads.Count()-1;
if (no_thrd < 0)
return;
delete (m_threads[no_thrd]);
m_threads.Remove(no_thrd);
}
if (no_thrd < 0)
return;
delete (m_threads[no_thrd]);
m_threads.Remove(no_thrd);
void MyFrame::OnResumeThread(wxCommandEvent& WXUNUSED(event) )
{
// resume first suspended thread
size_t n = 0;
while ( n < m_threads.Count() && m_threads[n]->IsPaused() )
n--;
if ( n < 0 )
wxLogError("No thread to pause!");
else
m_threads[n]->Resume();
}
void MyFrame::OnPauseThread(wxCommandEvent& WXUNUSED(event) )
{
// pause last running thread
int n = m_threads.Count() - 1;
while ( n >= 0 && !m_threads[n]->IsRunning() )
n--;
if ( n < 0 )
wxLogError("No thread to pause!");
else
m_threads[n]->Pause();
}
void MyFrame::OnSize(wxSizeEvent& event )
{
wxFrame::OnSize(event);
wxSize size( GetClientSize() );
m_txtctrl->SetSize( 10, 30, size.x-20, size.y-40 );
wxFrame::OnSize(event);
wxSize size( GetClientSize() );
m_txtctrl->SetSize( 10, 30, size.x-20, size.y-40 );
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
{
unsigned int i;
for (i=0;i<m_threads.Count();i++)
delete (m_threads[i]);
Close(TRUE);
unsigned int i;
for (i=0;i<m_threads.Count();i++)
delete (m_threads[i]);
Close(TRUE);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
wxMessageDialog dialog(this, "wxThread sample (based on minimal)\nJulian Smart and Guilhem Lavaux",
"About wxThread sample", wxYES_NO|wxCANCEL);
dialog.ShowModal();
wxMessageDialog dialog(this, "wxThread sample (based on minimal)\nJulian Smart and Guilhem Lavaux",
"About wxThread sample", wxYES_NO|wxCANCEL);
dialog.ShowModal();
}