samples/console/console.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        samples/console/console.cpp
   3 // Purpose:     a sample console (as opposed to GUI) progam using wxWindows
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include <stdio.h>
  21
  22 #include <wx/string.h>
  23 #include <wx/file.h>
  24 #include <wx/app.h>
  25
  26 // ----------------------------------------------------------------------------
  27 // conditional compilation
  28 // ----------------------------------------------------------------------------
  29
  30 // what to test?
  31 #define TEST_ARRAYS
  32 #undef TEST_THREADS
  33
  34 // ============================================================================
  35 // implementation
  36 // ============================================================================
  37
  38 // ----------------------------------------------------------------------------
  39 // threads
  40 // ----------------------------------------------------------------------------
  41
  42 #ifdef TEST_THREADS
  43
  44 #include <wx/thread.h>
  45
  46 static size_t gs_counter = (size_t)-1;
  47 static wxCriticalSection gs_critsect;
  48
  49 class MyThread : public wxThread
  50 {
  51 public:
  52     MyThread(char ch);
  53
  54     // thread execution starts here
  55     virtual void *Entry();
  56
  57     // and stops here
  58     virtual void OnExit();
  59
  60 public:
  61     char m_ch;
  62 };
  63
  64 MyThread::MyThread(char ch)
  65 {
  66     m_ch = ch;
  67
  68     Create();
  69 }
  70
  71 void *MyThread::Entry()
  72 {
  73     {
  74         wxCriticalSectionLocker lock(gs_critsect);
  75         if ( gs_counter == (size_t)-1 )
  76             gs_counter = 1;
  77         else
  78             gs_counter++;
  79     }
  80
  81     for ( size_t n = 0; n < 10; n++ )
  82     {
  83         if ( TestDestroy() )
  84             break;
  85
  86         putchar(m_ch);
  87         fflush(stdout);
  88
  89         wxThread::Sleep(100);
  90     }
  91
  92     return NULL;
  93 }
  94
  95 void MyThread::OnExit()
  96 {
  97     wxCriticalSectionLocker lock(gs_critsect);
  98     gs_counter--;
  99 }
 100
 101 #endif // TEST_THREADS
 102
 103 // ----------------------------------------------------------------------------
 104 // arrays
 105 // ----------------------------------------------------------------------------
 106
 107 #ifdef TEST_ARRAYS
 108
 109 void PrintArray(const char* name, const wxArrayString& array)
 110 {
 111     printf("Dump of the array '%s'\n", name);
 112
 113     size_t nCount = array.GetCount();
 114     for ( size_t n = 0; n < nCount; n++ )
 115     {
 116         printf("\t%s[%u] = '%s'\n", name, n, array[n].c_str());
 117     }
 118 }
 119
 120 #endif // TEST_ARRAYS
 121
 122 // ----------------------------------------------------------------------------
 123 // entry point
 124 // ----------------------------------------------------------------------------
 125
 126 int main(int argc, char **argv)
 127 {
 128     if ( !wxInitialize() )
 129     {
 130         fprintf(stderr, "Failed to initialize the wxWindows library, aborting.");
 131     }
 132
 133 #ifdef TEST_ARRAYS
 134     wxArrayString a1;
 135     a1.Add("tiger");
 136     a1.Add("cat");
 137     a1.Add("lion");
 138     a1.Add("dog");
 139     a1.Add("human");
 140     a1.Add("ape");
 141
 142     puts("*** Initially:");
 143
 144     PrintArray("a1", a1);
 145
 146     wxArrayString a2(a1);
 147     PrintArray("a2", a2);
 148
 149     wxSortedArrayString a3(a1);
 150     PrintArray("a3", a3);
 151
 152     puts("*** After deleting a string from a1");
 153     a1.Remove(2);
 154
 155     PrintArray("a1", a1);
 156     PrintArray("a2", a2);
 157     PrintArray("a3", a3);
 158
 159     puts("*** After reassigning a1 to a2 and a3");
 160     a3 = a2 = a1;
 161     PrintArray("a2", a2);
 162     PrintArray("a3", a3);
 163 #endif // TEST_ARRAYS
 164
 165 #ifdef TEST_THREADS
 166     static const size_t nThreads = 3;
 167     MyThread *threads[nThreads];
 168     size_t n;
 169     for ( n = 0; n < nThreads; n++ )
 170     {
 171         threads[n] = new MyThread('+' + n);
 172         threads[n]->Run();
 173     }
 174
 175     // wait until all threads terminate
 176     for ( ;; )
 177     {
 178         wxCriticalSectionLocker lock(gs_critsect);
 179         if ( !gs_counter )
 180             break;
 181     }
 182
 183     puts("\nThat's all, folks!");
 184
 185     for ( n = 0; n < nThreads; n++ )
 186     {
 187         threads[n]->Delete();
 188     }
 189 #endif // TEST_THREADS
 190
 191     wxUninitialize();
 192
 193     return 0;
 194 }