038ac694b3
Fix a small bug in the Printer for strings that didn't properly
prepend the prefix.
(cherry picked from commit 9b0e074c6d)
Change-Id: I78bfa3f76864c34f33fb439bf20dfc85616f1077
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_PROCESS_CALLSTACK_H
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#define ANDROID_PROCESS_CALLSTACK_H
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#include <utils/CallStack.h>
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#include <android/log.h>
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#include <utils/KeyedVector.h>
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#include <utils/String8.h>
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#include <time.h>
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#include <sys/types.h>
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namespace android {
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class Printer;
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// Collect/print the call stack (function, file, line) traces for all threads in a process.
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class ProcessCallStack {
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public:
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// Create an empty call stack. No-op.
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ProcessCallStack();
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// Copy the existing process callstack (no other side effects).
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ProcessCallStack(const ProcessCallStack& rhs);
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~ProcessCallStack();
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// Immediately collect the stack traces for all threads.
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void update();
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// Print all stack traces to the log using the supplied logtag.
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void log(const char* logtag, android_LogPriority priority = ANDROID_LOG_DEBUG,
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const char* prefix = 0) const;
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// Dump all stack traces to the specified file descriptor.
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void dump(int fd, int indent = 0, const char* prefix = 0) const;
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// Return a string (possibly very long) containing all the stack traces.
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String8 toString(const char* prefix = 0) const;
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// Dump a serialized representation of all the stack traces to the specified printer.
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void print(Printer& printer) const;
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// Get the number of threads whose stack traces were collected.
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size_t size() const;
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private:
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void printInternal(Printer& printer, Printer& csPrinter) const;
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// Reset the process's stack frames and metadata.
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void clear();
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struct ThreadInfo {
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CallStack callStack;
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String8 threadName;
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};
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// tid -> ThreadInfo
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KeyedVector<pid_t, ThreadInfo> mThreadMap;
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// Time that update() was last called
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struct tm mTimeUpdated;
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};
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}; // namespace android
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#endif // ANDROID_PROCESS_CALLSTACK_H
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