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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_glean_GleanObject_h
#define mozilla_glean_GleanObject_h
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/glean/bindings/GleanMetric.h"
#include "mozilla/glean/fog_ffi_generated.h"
#include "mozilla/ResultVariant.h"
#include "nsString.h"
#include "nsTArray.h"
namespace mozilla::glean {
// forward declaration
class GleanObject;
namespace impl {
template <class T>
class ObjectMetric {
friend class mozilla::glean::GleanObject;
public:
constexpr explicit ObjectMetric(uint32_t id) : mId(id) {}
private:
const uint32_t mId;
/* TODO(bug 1881023): Turn this into the public C++ API */
/**
* **Test-only API**
*
* Gets the currently stored object as a JSON-encoded string.
*
* This function will attempt to await the last parent-process task (if any)
* writing to the the metric's storage engine before returning a value.
* This function will not wait for data from child processes.
*
* This doesn't clear the stored value.
* Parent process only. Panics in child processes.
*
* @param aPingName The (optional) name of the ping to retrieve the metric
* for. Defaults to the first value in `send_in_pings`.
*
* @return value of the stored metric, or Nothing() if there is no value.
*/
Result<Maybe<nsCString>, nsCString> TestGetValue(
const nsACString& aPingName) const {
nsCString err;
if (fog_object_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_object_test_has_value(mId, &aPingName)) {
return Maybe<nsCString>();
}
nsCString ret;
fog_object_test_get_value(mId, &aPingName, &ret);
return Some(ret);
}
void SetStr(const nsACString& aValue) const {
fog_object_set_string(mId, &aValue);
}
};
} // namespace impl
class GleanObject final : public GleanMetric {
public:
explicit GleanObject(uint32_t aId, nsISupports* aParent)
: GleanMetric(aParent), mObject(aId) {}
virtual JSObject* WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override final;
void Set(JSContext* aCx, JS::Handle<JSObject*> aObj);
void TestGetValue(JSContext* aCx, const nsACString& aPingName,
JS::MutableHandle<JSObject*> aResult, ErrorResult& aRv);
virtual ~GleanObject() = default;
private:
const impl::ObjectMetric<void> mObject;
};
} // namespace mozilla::glean
#endif /* mozilla_glean_GleanObject.h */
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