static DECLCALLBACK(int) drvHostPulseAudioInit(PPDMIHOSTAUDIO pInterface)
{
NOREF(pInterface);
LogFlowFuncEnter();
int rc = audioLoadPulseLib();
if (RT_FAILURE(rc))
{
LogRel(("PulseAudio: Failed to load the PulseAudio shared library! Error %Rrc\n", rc));
return rc;
}
bool fLocked = false;
do
{
if (!(g_pMainLoop = pa_threaded_mainloop_new()))
{
LogRel(("PulseAudio: Failed to allocate main loop: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (!(g_pContext = pa_context_new(pa_threaded_mainloop_get_api(g_pMainLoop), "VirtualBox")))
{
LogRel(("PulseAudio: Failed to allocate context: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (pa_threaded_mainloop_start(g_pMainLoop) < 0)
{
LogRel(("PulseAudio: Failed to start threaded mainloop: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
g_fAbortMainLoop = false;
pa_context_set_state_callback(g_pContext, drvHostPulseAudioCbCtxState, NULL);
pa_threaded_mainloop_lock(g_pMainLoop);
fLocked = true;
if (pa_context_connect(g_pContext, NULL /* pszServer */,
PA_CONTEXT_NOFLAGS, NULL) < 0)
{
LogRel(("PulseAudio: Failed to connect to server: %s\n",
pa_strerror(pa_context_errno(g_pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
/* Wait until the g_pContext is ready */
for (;;)
{
if (!g_fAbortMainLoop)
pa_threaded_mainloop_wait(g_pMainLoop);
g_fAbortMainLoop = false;
pa_context_state_t cstate = pa_context_get_state(g_pContext);
if (cstate == PA_CONTEXT_READY)
break;
else if ( cstate == PA_CONTEXT_TERMINATED
|| cstate == PA_CONTEXT_FAILED)
{
LogRel(("PulseAudio: Failed to initialize context (state %d)\n", cstate));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
}
while (0);
if (fLocked)
pa_threaded_mainloop_unlock(g_pMainLoop);
if (RT_FAILURE(rc))
{
if (g_pMainLoop)
pa_threaded_mainloop_stop(g_pMainLoop);
if (g_pContext)
{
pa_context_disconnect(g_pContext);
pa_context_unref(g_pContext);
g_pContext = NULL;
}
if (g_pMainLoop)
{
pa_threaded_mainloop_free(g_pMainLoop);
g_pMainLoop = NULL;
}
}
LogFlowFuncLeaveRC(rc);
return rc;
}
static DECLCALLBACK(int) drvHostPulseAudioInit(PPDMIHOSTAUDIO pInterface)
{
AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
PDRVHOSTPULSEAUDIO pThis = PDMIHOSTAUDIO_2_DRVHOSTPULSEAUDIO(pInterface);
LogFlowFuncEnter();
int rc = audioLoadPulseLib();
if (RT_FAILURE(rc))
{
LogRel(("PulseAudio: Failed to load the PulseAudio shared library! Error %Rrc\n", rc));
return rc;
}
pThis->fLoopWait = false;
pThis->pMainLoop = NULL;
bool fLocked = false;
do
{
if (!(pThis->pMainLoop = pa_threaded_mainloop_new()))
{
LogRel(("PulseAudio: Failed to allocate main loop: %s\n",
pa_strerror(pa_context_errno(pThis->pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (!(pThis->pContext = pa_context_new(pa_threaded_mainloop_get_api(pThis->pMainLoop), "VirtualBox")))
{
LogRel(("PulseAudio: Failed to allocate context: %s\n",
pa_strerror(pa_context_errno(pThis->pContext))));
rc = VERR_NO_MEMORY;
break;
}
if (pa_threaded_mainloop_start(pThis->pMainLoop) < 0)
{
LogRel(("PulseAudio: Failed to start threaded mainloop: %s\n",
pa_strerror(pa_context_errno(pThis->pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
/* Install a global callback to known if something happens to our acquired context. */
pa_context_set_state_callback(pThis->pContext, paContextCbStateChanged, pThis /* pvUserData */);
pa_threaded_mainloop_lock(pThis->pMainLoop);
fLocked = true;
if (pa_context_connect(pThis->pContext, NULL /* pszServer */,
PA_CONTEXT_NOFLAGS, NULL) < 0)
{
LogRel(("PulseAudio: Failed to connect to server: %s\n",
pa_strerror(pa_context_errno(pThis->pContext))));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
/* Wait until the pThis->pContext is ready. */
for (;;)
{
if (!pThis->fLoopWait)
pa_threaded_mainloop_wait(pThis->pMainLoop);
pThis->fLoopWait = false;
pa_context_state_t cstate = pa_context_get_state(pThis->pContext);
if (cstate == PA_CONTEXT_READY)
break;
else if ( cstate == PA_CONTEXT_TERMINATED
|| cstate == PA_CONTEXT_FAILED)
{
LogRel(("PulseAudio: Failed to initialize context (state %d)\n", cstate));
rc = VERR_AUDIO_BACKEND_INIT_FAILED;
break;
}
}
}
while (0);
if (fLocked)
pa_threaded_mainloop_unlock(pThis->pMainLoop);
if (RT_FAILURE(rc))
{
if (pThis->pMainLoop)
pa_threaded_mainloop_stop(pThis->pMainLoop);
if (pThis->pContext)
{
pa_context_disconnect(pThis->pContext);
pa_context_unref(pThis->pContext);
pThis->pContext = NULL;
}
if (pThis->pMainLoop)
{
pa_threaded_mainloop_free(pThis->pMainLoop);
pThis->pMainLoop = NULL;
}
}
LogFlowFuncLeaveRC(rc);
return rc;
}