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Check for pending events before updating the config

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Small optimisation that significantly reduces number of config updates.
This commit is contained in:
Ingvar Stepanyan
2021-07-23 20:04:32 +00:00
parent 86f9be758f
commit ca75f61289
2 changed files with 18 additions and 2 deletions
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13
api.cpp
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@@ -60,6 +60,16 @@ class Context {
});
}
bool hasPendingEvent() {
return gpp_rethrow([=]() {
CameraEventType event_type = GP_EVENT_UNKNOWN;
gpp_unique_ptr<void, free> event_data(GPP_CALL(
void *, gp_camera_wait_for_event(camera.get(), 0, &event_type, _,
context.get())));
return event_type != GP_EVENT_TIMEOUT;
});
}
val configToJS() {
return gpp_rethrow([=]() {
GPPWidget config(
@@ -277,5 +287,6 @@ EMSCRIPTEN_BINDINGS(gphoto2_js_api) {
.function("configToJS", &Context::configToJS)
.function("setConfigValue", &Context::setConfigValue)
.function("capturePreviewAsBlob", &Context::capturePreviewAsBlob)
.function("captureImageAsFile", &Context::captureImageAsFile);
.function("captureImageAsFile", &Context::captureImageAsFile)
.function("hasPendingEvent", &Context::hasPendingEvent);
}