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winmm: Prevent some MIDI race conditions.

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This commit is contained in:
Jörg Höhle 2013-01-23 09:47:27 +01:00 committed by Alexandre Julliard
parent 702fe6738b
commit b0fc000ce1
2 changed files with 22 additions and 32 deletions
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37
dlls/winealsa.drv/midi.c
View file

@ -389,9 +389,9 @@ static DWORD WINAPI midRecThread(LPVOID arg)
* to handle the case where ALSA split the sysex into several events */
if ((lpMidiHdr->dwBytesRecorded == lpMidiHdr->dwBufferLength) ||
(*(BYTE*)(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded - 1) == 0xF7)) {
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
lpMidiHdr->dwFlags |= MHDR_DONE;
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
}
} else {
@ -478,6 +478,16 @@ static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
return MMSYSERR_ERROR;
}
MidiInDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
MidiInDev[wDevID].lpQueueHdr = NULL;
MidiInDev[wDevID].dwTotalPlayed = 0;
MidiInDev[wDevID].bufsize = 0x3FFF;
MidiInDev[wDevID].midiDesc = *lpDesc;
MidiInDev[wDevID].state = 0;
MidiInDev[wDevID].incLen = 0;
MidiInDev[wDevID].startTime = 0;
/* Connect our app port to the device port */
if (snd_seq_connect_from(midiSeq, port_in, MidiInDev[wDevID].addr.client, MidiInDev[wDevID].addr.port) < 0)
return MMSYSERR_NOTENABLED;
@ -497,16 +507,6 @@ static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
TRACE("Created thread for midi-in\n");
}
MidiInDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);
MidiInDev[wDevID].lpQueueHdr = NULL;
MidiInDev[wDevID].dwTotalPlayed = 0;
MidiInDev[wDevID].bufsize = 0x3FFF;
MidiInDev[wDevID].midiDesc = *lpDesc;
MidiInDev[wDevID].state = 0;
MidiInDev[wDevID].incLen = 0;
MidiInDev[wDevID].startTime = 0;
MIDI_NotifyClient(wDevID, MIM_OPEN, 0L, 0L);
return MMSYSERR_NOERROR;
}
@ -644,12 +644,11 @@ static DWORD midReset(WORD wDevID)
EnterCriticalSection(&crit_sect);
while (MidiInDev[wDevID].lpQueueHdr) {
MidiInDev[wDevID].lpQueueHdr->dwFlags &= ~MHDR_INQUEUE;
MidiInDev[wDevID].lpQueueHdr->dwFlags |= MHDR_DONE;
/* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
MIDI_NotifyClient(wDevID, MIM_LONGDATA,
(DWORD_PTR)MidiInDev[wDevID].lpQueueHdr, dwTime);
MidiInDev[wDevID].lpQueueHdr = MidiInDev[wDevID].lpQueueHdr->lpNext;
LPMIDIHDR lpMidiHdr = MidiInDev[wDevID].lpQueueHdr;
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
lpMidiHdr->dwFlags |= MHDR_DONE;
MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
}
LeaveCriticalSection(&crit_sect);
@ -726,10 +725,6 @@ static DWORD modOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
WARN("bad dwFlags\n");
return MMSYSERR_INVALFLAG;
}
if (!MidiOutDev[wDevID].bEnabled) {
TRACE("disabled wDevID\n");
return MMSYSERR_NOTENABLED;
}
MidiOutDev[wDevID].lpExtra = 0;

17
dlls/wineoss.drv/midi.c
View file

@ -563,9 +563,9 @@ static void midReceiveChar(WORD wDevID, unsigned char value, DWORD dwTime)
}
if (sbfb && lpMidiHdr != NULL) {
lpMidiHdr = MidiInDev[wDevID].lpQueueHdr;
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
lpMidiHdr->dwFlags |= MHDR_DONE;
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
}
LeaveCriticalSection(&crit_sect);
@ -906,12 +906,11 @@ static DWORD midReset(WORD wDevID)
EnterCriticalSection(&crit_sect);
while (MidiInDev[wDevID].lpQueueHdr) {
MidiInDev[wDevID].lpQueueHdr->dwFlags &= ~MHDR_INQUEUE;
MidiInDev[wDevID].lpQueueHdr->dwFlags |= MHDR_DONE;
/* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
MIDI_NotifyClient(wDevID, MIM_LONGDATA,
(DWORD_PTR)MidiInDev[wDevID].lpQueueHdr, dwTime);
MidiInDev[wDevID].lpQueueHdr = MidiInDev[wDevID].lpQueueHdr->lpNext;
LPMIDIHDR lpMidiHdr = MidiInDev[wDevID].lpQueueHdr;
MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
lpMidiHdr->dwFlags |= MHDR_DONE;
MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
}
LeaveCriticalSection(&crit_sect);
@ -1102,10 +1101,6 @@ static DWORD modOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
WARN("bad dwFlags\n");
return MMSYSERR_INVALFLAG;
}
if (!MidiOutDev[wDevID].bEnabled) {
TRACE("disabled wDevID\n");
return MMSYSERR_NOTENABLED;
}
MidiOutDev[wDevID].lpExtra = 0;