source: trunk/src/winmm/os2timer.cpp@ 592

Last change on this file since 592 was 588, checked in by phaller, 26 years ago

Add: added ODINWRAP support for WINMM
File size: 4.9 KB
Line 
1/* $Id: os2timer.cpp,v 1.5 1999-08-19 18:46:05 phaller Exp $ */
2
3/*
4 * OS/2 Timer class
5 *
6 * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12
13/****************************************************************************
14 * Includes *
15 ****************************************************************************/
16
17#define INCL_DOSPROCESS
18#define INCL_DOSDATETIME
19#define INCL_DOSSEMAPHORES
20#include <os2wrap.h> //Odin32 OS/2 api wrappers
21#include <process.h>
22#include "win32type.h"
23#include "wintimer.h"
24#include "os2timer.h"
25#include "misc.h"
26
27
28static void _Optlink TimerHlpHandler(void *);
29
30
31/******************************************************************************/
32/******************************************************************************/
33OS2Timer::OS2Timer() : TimerSem(0), TimerHandle(0), TimerThreadID(0),
34 clientCallback(NULL), TimerStatus(Stopped), fFatal(FALSE)
35{
36 OS2Timer *timer = OS2Timer::timers;
37
38 if(timer != NULL) {
39 while(timer->next != NULL) {
40 timer = timer->next;
41 }
42 timer->next = this;
43 }
44 else timers = this;
45
46 TimerThreadID = _beginthread(TimerHlpHandler, NULL, 0x4000, (void *)this);
47 DosSleep(100);
48}
49/******************************************************************************/
50/******************************************************************************/
51OS2Timer::~OS2Timer()
52{
53 OS2Timer *timer = OS2Timer::timers;
54
55 KillTimer();
56
57 if(timer != this) {
58 while(timer->next != this) {
59 timer = timer->next;
60 }
61 timer->next = this->next;
62 }
63 else timers = timer->next;
64}
65/******************************************************************************/
66/******************************************************************************/
67BOOL OS2Timer::StartTimer(int period, int resolution, LPTIMECALLBACK lptc,
68 int dwUser, int fuEvent)
69{
70 APIRET rc;
71
72 if(TimerThreadID == -1) {
73 return(FALSE);
74 }
75 if(TimerStatus == Stopped) {
76 clientCallback = lptc;
77 userData = dwUser;
78 if(fuEvent == TIME_PERIODIC)
79 rc = DosStartTimer(period, (HSEM)TimerSem, &TimerHandle);
80 else rc = DosAsyncTimer(period, (HSEM)TimerSem, &TimerHandle);
81 if(rc) {
82#ifdef DEBUG
83 if(fuEvent == TIME_PERIODIC)
84 WriteLog("DosStartTimer failed %d\n", rc);
85 else WriteLog("DosAsyncTimer failed %d\n", rc);
86#endif
87 return(FALSE);
88 }
89 TimerStatus = Running;
90 }
91 else return(FALSE); //already running (must use timeKillEvent first)
92 return(TRUE);
93}
94/******************************************************************************/
95/******************************************************************************/
96void OS2Timer::StopTimer()
97{
98 if(TimerStatus == Running) {
99 DosStopTimer(TimerHandle);
100 TimerStatus = Stopped;
101 }
102}
103/******************************************************************************/
104/******************************************************************************/
105void OS2Timer::KillTimer()
106{
107 fFatal = TRUE;
108 DosStopTimer(TimerHandle);
109 if(DosPostEventSem(TimerSem)) {//something went wrong
110 DosKillThread(TimerThreadID);
111 DosCloseEventSem(TimerSem);
112 }
113 TimerStatus = InActive;
114}
115/******************************************************************************/
116//******************************************************************************
117void OS2Timer::TimerHandler()
118{
119 ULONG Count = 0;
120 APIRET rc = 0; /* Return code */
121
122#ifdef DEBUG
123 WriteLog("TimerHandler thread created\n");
124#endif
125 rc = DosSetPriority (PRTYS_THREAD, /* Change a single thread */
126 PRTYC_TIMECRITICAL, /* Time critical class */
127 0L, /* Increase by 15 */
128 0L); /* Assume current thread */
129
130 rc = DosCreateEventSem(NULL, &TimerSem, DC_SEM_SHARED, 0);
131
132 if(rc != 0)
133 _endthread();
134
135#ifdef DEBUG
136 WriteLog("Semaphore created\n");
137#endif
138 TimerStatus = Stopped;
139
140 while(!fFatal) {
141 DosWaitEventSem(TimerSem, SEM_INDEFINITE_WAIT);
142 DosResetEventSem(TimerSem, &Count);
143 if(!fFatal) {
144#ifdef DEBUG
145//// WriteLog("T");
146#endif
147 clientCallback((UINT)this, 0, userData, 0, 0);
148 }
149 }
150 DosCloseEventSem(TimerSem);
151}
152//******************************************************************************
153//******************************************************************************
154static void _Optlink TimerHlpHandler(void *timer)
155{
156 ((OS2Timer *)timer)->TimerHandler();
157
158 _endthread();
159}
160//******************************************************************************
161//******************************************************************************
162OS2Timer *OS2Timer::timers = NULL;
163int OS2Timer::timerPeriod = 0;
164
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