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Improve listener interface.

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Now a structure is passed back, enabling combining the existing source
and sink listeners and adding property listeners as well.
This commit is contained in:
Peter Johnson
2016-11-04 12:46:22 -07:00
parent e07a40a16d
commit 8d2efb2838
8 changed files with 165 additions and 234 deletions
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57
src/cameraserver_c.cpp
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@@ -211,46 +211,29 @@ void CS_ReleaseSink(CS_Sink sink, CS_Status* status) {
return cs::ReleaseSink(sink, status);
}
CS_Listener CS_AddSourceListener(void* data,
void (*callback)(void* data, const char* name,
CS_Source source, int event),
int eventMask, CS_Status* status) {
return cs::AddSourceListener(
[=](llvm::StringRef name, CS_Source source, int event) {
// avoid the copy if possible
if (name[name.size()] == '\0') {
callback(data, name.data(), source, event);
} else {
llvm::SmallString<128> copy{name};
callback(data, copy.c_str(), source, event);
}
CS_Listener CS_AddListener(void* data,
void (*callback)(void* data, const CS_Event* event),
int eventMask, int immediateNotify,
CS_Status* status) {
return cs::AddListener(
[=](const cs::RawEvent& rawEvent) {
CS_Event event;
event.type = static_cast<CS_EventType>(static_cast<int>(rawEvent.type));
event.source = rawEvent.sourceHandle;
event.sink = rawEvent.sinkHandle;
event.name = rawEvent.name.c_str();
event.mode = rawEvent.mode;
event.property = rawEvent.propertyHandle;
event.propertyType = rawEvent.propertyType;
event.value = rawEvent.value;
event.valueStr = rawEvent.valueStr.c_str();
callback(data, &event);
},
eventMask, status);
eventMask, immediateNotify, status);
}
void CS_RemoveSourceListener(CS_Listener handle, CS_Status* status) {
return cs::RemoveSourceListener(handle, status);
}
CS_Listener CS_AddSinkListener(void* data,
void (*callback)(void* data, const char* name,
CS_Sink sink, int event),
int eventMask, CS_Status* status) {
return cs::AddSinkListener(
[=](llvm::StringRef name, CS_Sink sink, int event) {
// avoid the copy if possible
if (name[name.size()] == '\0') {
callback(data, name.data(), sink, event);
} else {
llvm::SmallString<128> copy{name};
callback(data, copy.c_str(), sink, event);
}
},
eventMask, status);
}
void CS_RemoveSinkListener(CS_Listener handle, CS_Status* status) {
return cs::RemoveSinkListener(handle, status);
void CS_RemoveListener(CS_Listener handle, CS_Status* status) {
return cs::RemoveListener(handle, status);
}
CS_Source* CS_EnumerateSources(int* count, CS_Status* status) {