1 /** 2 * Test case for PostThreadMessage 3 * (C) 2003 ReactOS 4 * License: LGPL 5 * See: LGPL.txt in top directory. 6 * Author: arty 7 * 8 * Windows thread message queue test case. 9 * Derived from ../event/event.c in part. 10 */ 11 12 #include <windows.h> 13 #include <stdio.h> 14 #include <assert.h> 15 16 HANDLE hWaitForFailure; 17 HANDLE hOkToPostThreadMessage; 18 HANDLE hOkToTerminate; 19 20 DWORD WINAPI thread( LPVOID crap ) 21 { 22 MSG msg; 23 24 /* Failure case ... Wait for the parent to try to post a message 25 before queue creation */ 26 printf( "Waiting to create the message queue.\n" ); 27 28 WaitForSingleObject(hWaitForFailure,INFINITE); 29 30 printf( "Creating message queue.\n" ); 31 32 /* "Create" a message queue */ 33 PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ); 34 35 printf( "Signalling the parent that we're ready.\n" ); 36 37 /* Signal that it's ok to post */ 38 SetEvent( hOkToPostThreadMessage ); 39 40 printf( "Listening messages.\n" ); 41 42 /* Now read some messages */ 43 while( GetMessage( &msg, 0,0,0 ) ) { 44 printf( "Received message: %04x %04x %08lx\n", 45 (msg.message & 0xffff), 46 (msg.wParam & 0xffff), 47 msg.lParam ); 48 assert( !msg.hwnd ); 49 } 50 51 printf( "Finished receiving messages.\n" ); 52 SetEvent( hOkToTerminate ); 53 54 return 0; 55 } 56 57 int main( int argc, char **argv ) 58 { 59 DWORD id; 60 61 printf( "Creating events\n" ); 62 63 hOkToPostThreadMessage = CreateEvent( NULL, FALSE, FALSE, NULL ); 64 hOkToTerminate = CreateEvent( NULL, FALSE, FALSE, NULL ); 65 hWaitForFailure = CreateEvent( NULL, FALSE, FALSE, NULL ); 66 67 printf( "Created events\n" ); 68 69 if( CreateThread( 0, 0, thread, 0, 0, &id ) == NULL ) { 70 printf( "Couldn't create one thread.\n" ); 71 return 0; 72 } 73 74 printf( "Posting to non-existent queue\n" ); 75 76 /* Check failure case */ 77 assert( PostThreadMessage( id, WM_USER + 0, 1, 2 ) == FALSE ); 78 79 printf( "Signalling thread to advance.\n" ); 80 81 SetEvent( hWaitForFailure ); 82 83 printf( "Waiting for signal from thread.\n" ); 84 WaitForSingleObject( hOkToPostThreadMessage, INFINITE ); 85 86 printf( "Sending three messages, then quit.\n" ); 87 assert( PostThreadMessage( id, WM_USER + 0, 1, 2 ) ); 88 assert( PostThreadMessage( id, WM_USER + 1, 3, 4 ) ); 89 Sleep( 500 ); /* Sleep a bit, so that the queue is empty for a bit. */ 90 assert( PostThreadMessage( id, WM_USER + 2, 5, 6 ) ); 91 assert( PostThreadMessage( id, WM_QUIT, 0,0 ) ); 92 93 WaitForSingleObject( hOkToTerminate, INFINITE ); 94 printf( "Test complete.\n" ); 95 96 return 0; 97 } 98