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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_UTILS_PRIORITYDUMPER_H
#define ANDROID_UTILS_PRIORITYDUMPER_H
#include <utils/Errors.h>
#include <utils/String16.h>
#include <utils/Vector.h>
namespace android {
// Helper class to parse common arguments responsible for splitting dumps into
// various priority buckets and changing the output format of the dump.
class PriorityDumper {
public:
static const char16_t PRIORITY_ARG[];
static const char16_t PRIORITY_ARG_CRITICAL[];
static const char16_t PRIORITY_ARG_HIGH[];
static const char16_t PRIORITY_ARG_NORMAL[];
static const char16_t PROTO_ARG[];
// Parses the argument list searching for --dump_priority with a priority type
// (HIGH, CRITICAL or NORMAL) and --proto. Matching arguments are stripped.
// If a valid priority type is found, the associated PriorityDumper
// method is called otherwise all supported sections are dumped.
// If --proto is found, the dumpAsProto flag is set to dump sections in proto
// format.
status_t priorityDump(int fd, const Vector<String16>& args);
// Dumps CRITICAL priority sections.
virtual status_t dumpCritical(int /*fd*/, const Vector<String16>& /*args*/, bool /*asProto*/) {
return OK;
}
// Dumps HIGH priority sections.
virtual status_t dumpHigh(int /*fd*/, const Vector<String16>& /*args*/, bool /*asProto*/) {
return OK;
}
// Dumps normal priority sections.
virtual status_t dumpNormal(int /*fd*/, const Vector<String16>& /*args*/, bool /*asProto*/) {
return OK;
}
// Dumps all sections.
// This method is called when priorityDump is called without priority
// arguments. By default, it calls all three dump methods.
virtual status_t dumpAll(int fd, const Vector<String16>& args, bool asProto);
virtual ~PriorityDumper() = default;
};
} // namespace android
#endif // ANDROID_UTILS_PRIORITYDUMPER_H
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