ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client,
const sp<LayerBaseClient>& lbc)
{
- Mutex::Autolock _l(mStateLock);
-
// attach this layer to the client
- ssize_t name = client->attachLayer(lbc);
+ size_t name = client->attachLayer(lbc);
+
+ Mutex::Autolock _l(mStateLock);
// add this layer to the current state list
addLayer_l(lbc);
- return name;
+ return ssize_t(name);
}
status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer)
return NO_ERROR;
}
-ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer)
+size_t Client::attachLayer(const sp<LayerBaseClient>& layer)
{
- int32_t name = android_atomic_inc(&mNameGenerator);
+ Mutex::Autolock _l(mLock);
+ size_t name = mNameGenerator++;
mLayers.add(name, layer);
return name;
}
void Client::detachLayer(const LayerBaseClient* layer)
{
+ Mutex::Autolock _l(mLock);
// we do a linear search here, because this doesn't happen often
const size_t count = mLayers.size();
for (size_t i=0 ; i<count ; i++) {
}
}
}
-sp<LayerBaseClient> Client::getLayerUser(int32_t i) const {
+sp<LayerBaseClient> Client::getLayerUser(int32_t i) const
+{
+ Mutex::Autolock _l(mLock);
sp<LayerBaseClient> lbc;
- const wp<LayerBaseClient>& layer(mLayers.valueFor(i));
+ wp<LayerBaseClient> layer(mLayers.valueFor(i));
if (layer != 0) {
lbc = layer.promote();
LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i));
status_t initCheck() const;
// protected by SurfaceFlinger::mStateLock
- ssize_t attachLayer(const sp<LayerBaseClient>& layer);
+ size_t attachLayer(const sp<LayerBaseClient>& layer);
void detachLayer(const LayerBaseClient* layer);
sp<LayerBaseClient> getLayerUser(int32_t i) const;
virtual status_t destroySurface(SurfaceID surfaceId);
virtual status_t setState(int32_t count, const layer_state_t* states);
- DefaultKeyedVector< size_t, wp<LayerBaseClient> > mLayers;
+ // constant
sp<SurfaceFlinger> mFlinger;
- int32_t mNameGenerator;
+
+ // protected by mLock
+ DefaultKeyedVector< size_t, wp<LayerBaseClient> > mLayers;
+ size_t mNameGenerator;
+
+ // thread-safe
+ mutable Mutex mLock;
};
class UserClient : public BnSurfaceComposerClient