[PATCH 07/10] winecoreaudio: Move the midi in lock to the unixlib. - wine-devel

29 Nov 2021

The syscall itself is temporary.
Signed-off-by: Huw Davies huw@codeweavers.com
---
 dlls/winecoreaudio.drv/coreaudio.c |  2 ++
 dlls/winecoreaudio.drv/coremidi.c  | 13 ++++++++++++
 dlls/winecoreaudio.drv/midi.c      | 32 +++++++++++++-----------------
 dlls/winecoreaudio.drv/unixlib.h   |  3 +++
 4 files changed, 32 insertions(+), 18 deletions(-)

diff --git a/dlls/winecoreaudio.drv/coreaudio.c b/dlls/winecoreaudio.drv/coreaudio.c
index b3aa39bf485..420021a53ea 100644
--- a/dlls/winecoreaudio.drv/coreaudio.c
+++ b/dlls/winecoreaudio.drv/coreaudio.c
@@ -1633,4 +1633,6 @@ unixlib_entry_t __wine_unix_call_funcs[] =
     midi_release,
     midi_out_message,
     midi_in_message,
+
+    midi_in_lock, /* temporary */
 };
diff --git a/dlls/winecoreaudio.drv/coremidi.c b/dlls/winecoreaudio.drv/coremidi.c
index 0e146ce86f6..8e12ad1a3c5 100644
--- a/dlls/winecoreaudio.drv/coremidi.c
+++ b/dlls/winecoreaudio.drv/coremidi.c
@@ -72,6 +72,8 @@
 #undef HRESULT
 #undef STDMETHODCALLTYPE
+#include <pthread.h>
+
 #include "ntstatus.h"
 #define WIN32_NO_STATUS
 #include "windef.h"
@@ -112,6 +114,17 @@ static struct midi_dest *dests;
 static struct midi_src *srcs;
 static CFStringRef midi_in_thread_port_name;
+static pthread_mutex_t midi_in_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+NTSTATUS midi_in_lock(void *args)
+{
+    BOOL lock = !!args;
+
+    if (lock) pthread_mutex_lock(&midi_in_mutex);
+    else pthread_mutex_unlock(&midi_in_mutex);
+    return STATUS_SUCCESS;
+}
+
 static void set_in_notify(struct notify_context *notify, struct midi_src *src, WORD dev_id, WORD msg,
                           DWORD_PTR param_1, DWORD_PTR param_2)
 {
diff --git a/dlls/winecoreaudio.drv/midi.c b/dlls/winecoreaudio.drv/midi.c
index 559aae2f939..7894b4da906 100644
--- a/dlls/winecoreaudio.drv/midi.c
+++ b/dlls/winecoreaudio.drv/midi.c
@@ -52,7 +52,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(midi);
static DWORD MIDIIn_NumDevs = 0;
-static CRITICAL_SECTION midiInLock; /* Critical section for MIDI In */
+
 static CFStringRef MIDIInThreadPortName;
static DWORD WINAPI MIDIIn_MessageThread(LPVOID p);
@@ -89,9 +89,6 @@ static LONG CoreAudio_MIDIInit(void)
if (MIDIIn_NumDevs > 0)
     {
-        InitializeCriticalSection(&midiInLock);
-        midiInLock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": midiInLock");
-
         MIDIInThreadPortName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("MIDIInThreadPortName.%u"), getpid());
         CloseHandle( CreateThread(NULL, 0, MIDIIn_MessageThread, NULL, 0, NULL));
     }
@@ -105,12 +102,6 @@ static LONG CoreAudio_MIDIRelease(void)
     UNIX_CALL(midi_release, NULL);
     sources = NULL;
-    if (MIDIIn_NumDevs > 0)
-    {
-        midiInLock.DebugInfo->Spare[0] = 0;
-        DeleteCriticalSection(&midiInLock);
-    }
-
     return DRV_SUCCESS;
 }
@@ -146,6 +137,11 @@ static void MIDI_NotifyClient(UINT wDevID, WORD wMsg, DWORD_PTR dwParam1, DWORD_
     DriverCallback(dwCallBack, uFlags, hDev, wMsg, dwInstance, dwParam1, dwParam2);
 }
+static void midi_lock( BOOL lock )
+{
+    UNIX_CALL(midi_in_lock, (void *)lock);
+}
+
 static DWORD MIDIIn_AddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
 {
     TRACE("wDevID=%d lpMidiHdr=%p dwSize=%d\n", wDevID, lpMidiHdr, dwSize);
@@ -175,7 +171,7 @@ static DWORD MIDIIn_AddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
    return MIDIERR_UNPREPARED;
     }
-    EnterCriticalSection(&midiInLock);
+    midi_lock( TRUE );
     lpMidiHdr->dwFlags &= ~WHDR_DONE;
     lpMidiHdr->dwFlags |= MHDR_INQUEUE;
     lpMidiHdr->dwBytesRecorded = 0;
@@ -189,7 +185,7 @@ static DWORD MIDIIn_AddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
         ptr = ptr->lpNext);
    ptr->lpNext = lpMidiHdr;
     }
-    LeaveCriticalSection(&midiInLock);
+    midi_lock( FALSE );
return MMSYSERR_NOERROR;
 }
@@ -204,7 +200,7 @@ static DWORD MIDIIn_Reset(WORD wDevID)
    return MMSYSERR_BADDEVICEID;
     }
-    EnterCriticalSection(&midiInLock);
+    midi_lock( TRUE );
     while (sources[wDevID].lpQueueHdr) {
    LPMIDIHDR lpMidiHdr = sources[wDevID].lpQueueHdr;
    sources[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
@@ -213,7 +209,7 @@ static DWORD MIDIIn_Reset(WORD wDevID)
    /* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
    MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
     }
-    LeaveCriticalSection(&midiInLock);
+    midi_lock( FALSE );
return MMSYSERR_NOERROR;
 }
@@ -258,7 +254,7 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
                     src->state |= 2;
                 }
-                EnterCriticalSection(&midiInLock);
+                midi_lock( TRUE );
                 currentTime = GetTickCount() - src->startTime;
while (len) {
@@ -289,11 +285,11 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
                     }
                 }
-                LeaveCriticalSection(&midiInLock);
+                midi_lock( FALSE );
                 return NULL;
             }
-            EnterCriticalSection(&midiInLock);
+            midi_lock( TRUE );
             currentTime = GetTickCount() - src->startTime;
while (pos < msg->length)
@@ -320,7 +316,7 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
                 }
                 MIDI_NotifyClient(msg->devID, MIM_DATA, sendData, currentTime);
             }
-            LeaveCriticalSection(&midiInLock);
+            midi_lock( FALSE );
             break;
         default:
             CFRunLoopStop(CFRunLoopGetCurrent());
diff --git a/dlls/winecoreaudio.drv/unixlib.h b/dlls/winecoreaudio.drv/unixlib.h
index 767309bb763..2f0464ad322 100644
--- a/dlls/winecoreaudio.drv/unixlib.h
+++ b/dlls/winecoreaudio.drv/unixlib.h
@@ -252,12 +252,15 @@ enum unix_funcs
     unix_midi_release,
     unix_midi_out_message,
     unix_midi_in_message,
+
+    unix_midi_in_lock, /* temporary */
 };
NTSTATUS midi_init( void * ) DECLSPEC_HIDDEN;
 NTSTATUS midi_release( void * ) DECLSPEC_HIDDEN;
 NTSTATUS midi_out_message( void * ) DECLSPEC_HIDDEN;
 NTSTATUS midi_in_message( void * ) DECLSPEC_HIDDEN;
+NTSTATUS midi_in_lock( void * ) DECLSPEC_HIDDEN;
extern unixlib_handle_t coreaudio_handle;
-- 
2.23.0



    