// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
#include <stdio.h>
#include <wx/string.h>
#include <wx/file.h>
#include <wx/app.h>
+
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
+
+// what to test?
+
+//#define TEST_ARRAYS
+//#define TEST_LOG
+//#define TEST_STRINGS
+#define TEST_THREADS
+//#define TEST_TIME
+//#define TEST_LONGLONG
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// long long
+// ----------------------------------------------------------------------------
+
+#ifdef TEST_LONGLONG
+
+#include <wx/longlong.h>
+#include <wx/timer.h>
+
+static void TestSpeed()
+{
+ static const long max = 100000000;
+ long n;
+
+ {
+ wxStopWatch sw;
+
+ long l = 0;
+ for ( n = 0; n < max; n++ )
+ {
+ l += n;
+ }
+
+ printf("Summing longs took %ld milliseconds.\n", sw.Time());
+ }
+
+ {
+ wxStopWatch sw;
+
+ __int64 l = 0;
+ for ( n = 0; n < max; n++ )
+ {
+ l += n;
+ }
+
+ printf("Summing __int64s took %ld milliseconds.\n", sw.Time());
+ }
+
+ {
+ wxStopWatch sw;
+
+ wxLongLong l;
+ for ( n = 0; n < max; n++ )
+ {
+ l += n;
+ }
+
+ printf("Summing wxLongLongs took %ld milliseconds.\n", sw.Time());
+ }
+}
+
+static void TestDivision()
+{
+ wxLongLong ll = 0x38417388; // some number < LONG_MAX
+
+ wxASSERT( (ll / 1000l)*1000l == ll );
+}
+
+#endif // TEST_LONGLONG
+
+// ----------------------------------------------------------------------------
+// date time
+// ----------------------------------------------------------------------------
+
+#ifdef TEST_TIME
+
+#include <wx/datetime.h>
+
+#endif // TEST_TIME
+
+// ----------------------------------------------------------------------------
+// threads
+// ----------------------------------------------------------------------------
+
+#ifdef TEST_THREADS
+
#include <wx/thread.h>
static size_t gs_counter = (size_t)-1;
static wxCriticalSection gs_critsect;
+static wxCondition gs_cond;
-class MyThread : public wxThread
+class MyJoinableThread : public wxThread
{
public:
- MyThread(char ch);
+ MyJoinableThread(size_t n) : wxThread(wxTHREAD_JOINABLE)
+ { m_n = n; Create(); }
// thread execution starts here
- virtual void *Entry();
+ virtual ExitCode Entry();
- // and stops here
- virtual void OnExit();
-
-public:
- char m_ch;
+private:
+ size_t m_n;
};
-MyThread::MyThread(char ch)
+wxThread::ExitCode MyJoinableThread::Entry()
{
- m_ch = ch;
+ unsigned long res = 1;
+ for ( size_t n = 1; n < m_n; n++ )
+ {
+ res *= n;
+
+ // it's a loooong calculation :-)
+ Sleep(100);
+ }
- Create();
+ return (ExitCode)res;
}
-void *MyThread::Entry()
+class MyDetachedThread : public wxThread
+{
+public:
+ MyDetachedThread(size_t n, char ch) { m_n = n; m_ch = ch; Create(); }
+
+ // thread execution starts here
+ virtual ExitCode Entry();
+
+ // and stops here
+ virtual void OnExit();
+
+private:
+ size_t m_n; // number of characters to write
+ char m_ch; // character to write
+};
+
+wxThread::ExitCode MyDetachedThread::Entry()
{
{
wxCriticalSectionLocker lock(gs_critsect);
gs_counter++;
}
- for ( size_t n = 0; n < 10; n++ )
+ for ( size_t n = 0; n < m_n; n++ )
{
if ( TestDestroy() )
break;
wxThread::Sleep(100);
}
- return NULL;
+ return 0;
}
-void MyThread::OnExit()
+void MyDetachedThread::OnExit()
{
+ wxLogTrace("thread", "Thread %ld is in OnExit", GetId());
+
wxCriticalSectionLocker lock(gs_critsect);
- gs_counter--;
+ if ( !--gs_counter )
+ gs_cond.Signal();
}
-int main(int argc, char **argv)
+void TestDetachedThreads()
{
- if ( !wxInitialize() )
- {
- fprintf(stderr, "Failed to initialize the wxWindows library, aborting.");
- }
+ puts("*** Testing detached threads ***");
static const size_t nThreads = 3;
- MyThread *threads[nThreads];
+ MyDetachedThread *threads[nThreads];
size_t n;
for ( n = 0; n < nThreads; n++ )
{
- threads[n] = new MyThread('+' + n);
+ threads[n] = new MyDetachedThread(10, 'A' + n);
+ }
+
+ threads[0]->SetPriority(WXTHREAD_MIN_PRIORITY);
+ threads[1]->SetPriority(WXTHREAD_MAX_PRIORITY);
+
+ for ( n = 0; n < nThreads; n++ )
+ {
threads[n]->Run();
}
// wait until all threads terminate
- for ( ;; )
+ gs_cond.Wait();
+
+ puts("");
+}
+
+void TestJoinableThreads()
+{
+ puts("*** Testing a joinable thread (a loooong calculation...) ***");
+
+ // calc 10! in the background
+ MyJoinableThread thread(10);
+ thread.Run();
+
+ printf("\nThread terminated with exit code %lu.\n",
+ (unsigned long)thread.Wait());
+}
+
+void TestThreadSuspend()
+{
+ MyDetachedThread *thread = new MyDetachedThread(30, 'X');
+
+ thread->Run();
+
+ // this is for this demo only, in a real life program we'd use another
+ // condition variable which would be signaled from wxThread::Entry() to
+ // tell us that the thread really started running - but here just wait a
+ // bit and hope that it will be enough (the problem is, of course, that
+ // the thread might still not run when we call Pause() which will result
+ // in an error)
+ wxThread::Sleep(300);
+
+ for ( size_t n = 0; n < 3; n++ )
{
- wxCriticalSectionLocker lock(gs_critsect);
- if ( !gs_counter )
- break;
+ thread->Pause();
+
+ puts("\nThread suspended");
+ if ( n > 0 )
+ {
+ // don't sleep but resume immediately the first time
+ wxThread::Sleep(300);
+ }
+ puts("Going to resume the thread");
+
+ thread->Resume();
}
- puts("\nThat's all, folks!");
+ // wait until the thread terminates
+ gs_cond.Wait();
- for ( n = 0; n < nThreads; n++ )
+ puts("");
+}
+
+#endif // TEST_THREADS
+
+// ----------------------------------------------------------------------------
+// arrays
+// ----------------------------------------------------------------------------
+
+#ifdef TEST_ARRAYS
+
+void PrintArray(const char* name, const wxArrayString& array)
+{
+ printf("Dump of the array '%s'\n", name);
+
+ size_t nCount = array.GetCount();
+ for ( size_t n = 0; n < nCount; n++ )
+ {
+ printf("\t%s[%u] = '%s'\n", name, n, array[n].c_str());
+ }
+}
+
+#endif // TEST_ARRAYS
+
+// ----------------------------------------------------------------------------
+// strings
+// ----------------------------------------------------------------------------
+
+#ifdef TEST_STRINGS
+
+#include "wx/timer.h"
+
+void TestString()
+{
+ wxStopWatch sw;
+
+ wxString a, b, c;
+
+ a.reserve (128);
+ b.reserve (128);
+ c.reserve (128);
+
+ for (int i = 0; i < 1000000; ++i)
+ {
+ a = "Hello";
+ b = " world";
+ c = "! How'ya doin'?";
+ a += b;
+ a += c;
+ c = "Hello world! What's up?";
+ if (c != a)
+ c = "Doh!";
+ }
+
+ printf ("TestString elapsed time: %ld\n", sw.Time());
+}
+
+void TestPChar()
+{
+ wxStopWatch sw;
+
+ char a [128];
+ char b [128];
+ char c [128];
+
+ for (int i = 0; i < 1000000; ++i)
+ {
+ strcpy (a, "Hello");
+ strcpy (b, " world");
+ strcpy (c, "! How'ya doin'?");
+ strcat (a, b);
+ strcat (a, c);
+ strcpy (c, "Hello world! What's up?");
+ if (strcmp (c, a) == 0)
+ strcpy (c, "Doh!");
+ }
+
+ printf ("TestPChar elapsed time: %ld\n", sw.Time());
+}
+
+#endif // TEST_STRINGS
+
+// ----------------------------------------------------------------------------
+// entry point
+// ----------------------------------------------------------------------------
+
+int main(int argc, char **argv)
+{
+ if ( !wxInitialize() )
+ {
+ fprintf(stderr, "Failed to initialize the wxWindows library, aborting.");
+ }
+
+#ifdef TEST_STRINGS
+ TestPChar();
+ TestString();
+#endif // TEST_STRINGS
+
+#ifdef TEST_ARRAYS
+ wxArrayString a1;
+ a1.Add("tiger");
+ a1.Add("cat");
+ a1.Add("lion");
+ a1.Add("dog");
+ a1.Add("human");
+ a1.Add("ape");
+
+ puts("*** Initially:");
+
+ PrintArray("a1", a1);
+
+ wxArrayString a2(a1);
+ PrintArray("a2", a2);
+
+ wxSortedArrayString a3(a1);
+ PrintArray("a3", a3);
+
+ puts("*** After deleting a string from a1");
+ a1.Remove(2);
+
+ PrintArray("a1", a1);
+ PrintArray("a2", a2);
+ PrintArray("a3", a3);
+
+ puts("*** After reassigning a1 to a2 and a3");
+ a3 = a2 = a1;
+ PrintArray("a2", a2);
+ PrintArray("a3", a3);
+#endif // TEST_ARRAYS
+
+#ifdef TEST_LOG
+ wxString s;
+ for ( size_t n = 0; n < 8000; n++ )
{
- threads[n]->Delete();
+ s << (char)('A' + (n % 26));
}
+ wxString msg;
+ msg.Printf("A very very long message: '%s', the end!\n", s.c_str());
+
+ // this one shouldn't be truncated
+ printf(msg);
+
+ // but this one will because log functions use fixed size buffer
+ // (note that it doesn't need '\n' at the end neither - will be added
+ // by wxLog anyhow)
+ wxLogMessage("A very very long message 2: '%s', the end!", s.c_str());
+#endif // TEST_LOG
+
+#ifdef TEST_THREADS
+ if ( argc > 1 && argv[1][0] == 't' )
+ wxLog::AddTraceMask("thread");
+
+ TestThreadSuspend();
+ if ( 0 )
+ {
+ TestDetachedThreads();
+ TestJoinableThreads();
+ }
+#endif // TEST_THREADS
+
+#ifdef TEST_LONGLONG
+ if ( 0 )
+ TestSpeed();
+ if ( 1 )
+ TestDivision();
+#endif // TEST_LONGLONG
+
+#ifdef TEST_TIME
+ wxDateTime time = wxDateTime::Now();
+ printf("Current time: '%s', current year %u is %sa leap one",
+ time.Format().c_str(),
+ time.GetYear(),
+ wxDateTime::IsLeapYear(time.GetYear()) ? "" : "not");
+#endif // TEST_TIME
+
wxUninitialize();
return 0;
projects / wxWidgets.git / blobdiff