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2 | /***********************************************************************
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3 |
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4 | $Id: timer.c 1163 2008-09-05 21:43:52Z jbs $
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5 |
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6 | Timer thread
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7 |
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8 | Copyright (c) 1993-98 M. Kimes
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9 | Copyright (c) 2006 Steven H. Levine
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10 |
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11 | 22 Jul 06 SHL Check more run time errors
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12 | 20 Aug 07 GKY Move #pragma alloc_text to end for OpenWatcom compat
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13 |
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14 | ***********************************************************************/
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15 |
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16 | #include <process.h> // _beginthread
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17 |
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18 | #define INCL_DOS
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19 | #define INCL_DOSERRORS
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20 | #define INCL_WIN
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21 | #define INCL_LONGLONG // dircnrs.h
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22 |
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23 | #include "fm3str.h"
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24 | #include "errutil.h" // Dos_Error...
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25 | #include "strutil.h" // GetPString
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26 | #include "timer.h"
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27 | #include "fm3dll.h"
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28 |
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29 | static PSZ pszSrcFile = __FILE__;
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30 |
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31 | static HEV hevTimerSem;
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32 |
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33 | static void TimerThread(void *args)
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34 | {
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35 | HAB hab2;
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36 | HMQ hmq2;
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37 | ULONG cntr = 0;
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38 |
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39 | priority_bumped();
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40 | hab2 = WinInitialize(0);
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41 | if (hab2) {
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42 | hmq2 = WinCreateMsgQueue(hab2, 0);
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43 | if (hmq2) {
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44 | WinCancelShutdown(hmq2, TRUE);
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45 | if (!DosCreateEventSem(NULL, &hevTimerSem, 0, FALSE)) {
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46 | for (;;) {
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47 | if (DosWaitEventSem(hevTimerSem, 3000) != ERROR_TIMEOUT)
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48 | break;
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49 | cntr++;
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50 | if (hwndTree && !(cntr % 3))
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51 | PostMsg(hwndTree, UM_TIMER, MPVOID, MPVOID);
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52 | if (hwndBubble && WinIsWindowVisible(hwndBubble))
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53 | PostMsg(hwndBubble, UM_TIMER, MPVOID, MPVOID);
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54 | if (DataHwnd)
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55 | PostMsg(DataHwnd, UM_TIMER, MPVOID, MPVOID);
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56 | }
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57 | DosCloseEventSem(hevTimerSem);
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58 | }
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59 | WinDestroyMsgQueue(hmq2);
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60 | }
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61 | WinTerminate(hab2);
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62 | }
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63 | }
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64 |
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65 | //== StartTimer() return TRUE can start thread ==
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66 |
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67 | BOOL StartTimer(void)
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68 | {
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69 | INT rc = _beginthread(TimerThread, NULL, 32768, (PVOID) 0);
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70 |
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71 | if (rc == -1)
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72 | Runtime_Error(pszSrcFile, __LINE__,
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73 | GetPString(IDS_COULDNTSTARTTHREADTEXT));
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74 |
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75 | return rc != -1;
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76 | }
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77 |
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78 | void StopTimer(void)
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79 | {
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80 | DosPostEventSem(hevTimerSem);
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81 | }
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82 |
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83 | #pragma alloc_text(TIMER,TimerThread,StartTimer,StopTimer)
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