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wineoss: Use a pipe to signal the end of the record thread. 

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2022-04-29 08:29:56 +01:00 committed by Alexandre Julliard
parent a0f0c3f345
commit 4a943cbd36
1 changed files with 21 additions and 21 deletions
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42
dlls/wineoss.drv/midi.c
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@ -70,7 +70,7 @@ static int MIDM_NumDevs = 0;
static int numStartedMidiIn = 0;
static int end_thread;
static int rec_cancel_pipe[2];
static HANDLE hThread;
/*======================================================================*
@ -214,30 +214,26 @@ static DWORD WINAPI midRecThread(void *arg)
int fd = (int)(INT_PTR)arg;
unsigned char buffer[256];
int len;
struct pollfd pfd;
struct pollfd pollfd[2];
TRACE("Thread startup\n");
pfd.fd = fd;
pfd.events = POLLIN;
while(!end_thread) {
TRACE("Thread loop\n");
pollfd[0].fd = rec_cancel_pipe[0];
pollfd[0].events = POLLIN;
pollfd[1].fd = fd;
pollfd[1].events = POLLIN;
while (1)
{
/* Check if an event is present */
if (poll(&pfd, 1, 250) <= 0)
if (poll(pollfd, ARRAY_SIZE(pollfd), -1) <= 0)
continue;
if (pollfd[0].revents & POLLIN) /* cancelled */
break;
len = read(fd, buffer, sizeof(buffer));
TRACE("Received %d bytes\n", len);
if (len < 0) continue;
if ((len % 4) != 0) {
WARN("Bad length %d, errno %d (%s)\n", len, errno, strerror(errno));
continue;
}
handle_midi_data(buffer, len);
if (len > 0 && len % 4 == 0)
handle_midi_data(buffer, len);
}
return 0;
}
@ -286,9 +282,11 @@ static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
}
if (numStartedMidiIn++ == 0) {
end_thread = 0;
pipe(rec_cancel_pipe);
hThread = CreateThread(NULL, 0, midRecThread, (void *)(INT_PTR)fd, 0, NULL);
if (!hThread) {
close(rec_cancel_pipe[0]);
close(rec_cancel_pipe[1]);
numStartedMidiIn = 0;
WARN("Couldn't create thread for midi-in\n");
midiCloseSeq(fd);
@ -338,11 +336,13 @@ static DWORD midClose(WORD wDevID)
}
if (--numStartedMidiIn == 0) {
TRACE("Stopping thread for midi-in\n");
end_thread = 1;
write(rec_cancel_pipe[1], "x", 1);
if (WaitForSingleObject(hThread, 5000) != WAIT_OBJECT_0) {
WARN("Thread end not signaled, force termination\n");
TerminateThread(hThread, 0);
}
close(rec_cancel_pipe[0]);
close(rec_cancel_pipe[1]);
TRACE("Stopped thread for midi-in\n");
}
midiCloseSeq(MidiInDev[wDevID].fd);