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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_GleanBoolean_h
#define mozilla_glean_GleanBoolean_h
#include "nsIGleanMetrics.h"
#include "mozilla/glean/fog_ffi_generated.h"
namespace mozilla {
namespace glean {
namespace impl {
class BooleanMetric {
public:
constexpr explicit BooleanMetric(uint32_t id) : mId(id) {}
/**
* Set to the specified boolean value.
*
* @param value the value to set.
*/
void Set(bool value) const { fog_boolean_set(mId, int(value)); }
/**
* **Test-only API**
*
* Gets the currently stored value as a boolean.
*
* 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.
*/
Maybe<bool> TestGetValue(const nsACString& aPingName = nsCString()) const {
if (!fog_boolean_test_has_value(mId, &aPingName)) {
return Nothing();
}
return Some(fog_boolean_test_get_value(mId, &aPingName));
}
private:
const uint32_t mId;
};
} // namespace impl
class GleanBoolean final : public nsIGleanBoolean {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIGLEANBOOLEAN
explicit GleanBoolean(uint32_t id) : mBoolean(id){};
private:
virtual ~GleanBoolean() = default;
const impl::BooleanMetric mBoolean;
};
} // namespace glean
} // namespace mozilla
#endif /* mozilla_glean_GleanBoolean.h */
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