xref: /aoo41x/main/vcl/os2/source/app/saltimer.cxx (revision cdf0e10c)
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27 
28 #include <svpm.h>
29 
30 #define _SV_SALTIMER_CXX
31 #include <saldata.hxx>
32 #include <saltimer.h>
33 #include <salinst.h>
34 
35 // =======================================================================
36 
37 // Maximale Periode
38 #define MAX_SYSPERIOD	  65533
39 #define IDTIMER				10
40 
41 // =======================================================================
42 
43 void ImplSalStartTimer( ULONG nMS, BOOL bMutex )
44 {
45 	SalData*	pSalData = GetSalData();
46 
47 	// Periode darf nicht zu gross sein, da OS2 2.11 mit USHORT arbeitet
48 	// Remenber the time of the timer
49 	pSalData->mnTimerMS = nMS;
50 	if ( !bMutex )
51 		pSalData->mnTimerOrgMS = nMS;
52 
53 	// Periode darf nicht zu gross sein, da Windows mit USHORT arbeitet
54 	if ( nMS > MAX_SYSPERIOD )
55 		nMS = MAX_SYSPERIOD;
56 
57 	// Gibt es einen Timer, dann zerstoren
58 	if ( pSalData->mnTimerId )
59 		WinStopTimer( pSalData->mhAB, pSalData->mpFirstInstance->mhComWnd, pSalData->mnTimerId );
60 
61 	// Make a new timer with new period
62 	pSalData->mnTimerId = WinStartTimer( pSalData->mhAB, pSalData->mpFirstInstance->mhComWnd, IDTIMER, nMS );
63 	pSalData->mnNextTimerTime = pSalData->mnLastEventTime + nMS;
64 }
65 
66 // -----------------------------------------------------------------------
67 
68 Os2SalTimer::~Os2SalTimer()
69 {
70 }
71 
72 // -----------------------------------------------------------------------
73 
74 void Os2SalTimer::Start( ULONG nMS )
75 {
76 	// Um auf Main-Thread umzuschalten
77 	SalData* pSalData = GetSalData();
78 	if ( pSalData->mpFirstInstance )
79 	{
80 		if ( pSalData->mnAppThreadId != GetCurrentThreadId() )
81 			WinPostMsg( pSalData->mpFirstInstance->mhComWnd, SAL_MSG_STARTTIMER, 0, (MPARAM)nMS );
82 		else
83 			WinSendMsg( pSalData->mpFirstInstance->mhComWnd, SAL_MSG_STARTTIMER, 0, (MPARAM)nMS );
84 	}
85 	else
86 		ImplSalStartTimer( nMS, FALSE);
87 }
88 
89 // -----------------------------------------------------------------------
90 
91 void Os2SalTimer::Stop()
92 {
93 	SalData*	pSalData = GetSalData();
94 
95 	// Exitstiert ein Timer, dann diesen zerstoeren
96 	if ( pSalData->mnTimerId ) {
97 		WinStopTimer( pSalData->mhAB, pSalData->mpFirstInstance->mhComWnd, pSalData->mnTimerId );
98 		pSalData->mnTimerId = 0;
99 		pSalData->mnNextTimerTime = 0;
100 	}
101 }
102 
103 // -----------------------------------------------------------------------
104 
105 void SalTimerProc( HWND, UINT, UINT nId, ULONG )
106 {
107 	SalData* pSalData = GetSalData();
108 	ImplSVData* pSVData = ImplGetSVData();
109 
110 	// Test for MouseLeave
111 	SalTestMouseLeave();
112 
113 	bool bRecursive = pSalData->mbInTimerProc && (nId != SALTIMERPROC_RECURSIVE);
114 	if ( pSVData->mpSalTimer && ! bRecursive )
115 	{
116 		// Try to aquire the mutex. If we don't get the mutex then we
117 		// try this a short time later again.
118 		if ( ImplSalYieldMutexTryToAcquire() )
119 		{
120 			bRecursive = pSalData->mbInTimerProc && (nId != SALTIMERPROC_RECURSIVE);
121 			if ( pSVData->mpSalTimer && ! bRecursive )
122 			{
123 				pSalData->mbInTimerProc = TRUE;
124 				pSVData->mpSalTimer->CallCallback();
125 				pSalData->mbInTimerProc = FALSE;
126 				ImplSalYieldMutexRelease();
127 
128 				// Run the timer in the correct time, if we start this
129 				// with a small timeout, because we don't get the mutex
130 				if ( pSalData->mnTimerId &&
131 					(pSalData->mnTimerMS != pSalData->mnTimerOrgMS) )
132 					ImplSalStartTimer( pSalData->mnTimerOrgMS, FALSE );
133 			}
134 		}
135 		else
136 			ImplSalStartTimer( 10, TRUE );
137 	}
138 
139 }
140 
141