1/**
2 * Copyright (c) Glow Contributors. See CONTRIBUTORS file.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#ifndef GLOW_RUNTIME_ERROR_REPORTER_H
17#define GLOW_RUNTIME_ERROR_REPORTER_H
18
19#include "glow/Support/Error.h"
20
21#include <memory>
22#include <string>
23#include <vector>
24
25namespace glow {
26
27/// Interface for exporting runtime statistics. The base implementation
28/// delegates to any subclass registered via `ErrorReporter`.
29class ErrorReporter {
30public:
31 /// Dtor.
32 virtual ~ErrorReporter() = default;
33
34 /// Report error to some sink.
35 virtual void report(const std::string &msg) = 0;
36};
37
38/// Registry of ErrorReporters..
39class ErrorReporterRegistry final {
40public:
41 /// Start all the error reporters.
42 void report(const std::string &msg) {
43 for (auto *r : reporters_) {
44 r->report(msg);
45 }
46 }
47
48 /// Register a ErrorReporter.
49 void registerErrorReporter(ErrorReporter *reporter);
50
51 /// Revoke a ErrorReporter.
52 void revokeErrorReporter(ErrorReporter *reporter);
53
54 /// Static singleton ErrorReporterRegistry.
55 static std::shared_ptr<ErrorReporterRegistry> ErrorReporters();
56
57private:
58 /// Registered ErrorReporter..
59 std::vector<ErrorReporter *> reporters_;
60};
61
62/// Reports the error with registered reporters and returns the same error for
63/// pipelining.
64detail::GlowError reportOnError(detail::GlowError error);
65
66} // namespace glow
67
68/// Unwraps the T from within an Expected<T>. If the Expected<T> contains
69/// an ErrorValue, the program will report it and exit.
70#define REPORT_AND_EXIT_ON_ERR(...) \
71 (glow::detail::exitOnError(__FILE__, __LINE__, \
72 glow::reportOnError(__VA_ARGS__)))
73
74#endif // GLOW_RUNTIME_ERROR_REPORTER_H
75