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/*
* Copyright (C) 2016 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 COMMANDLINE_H
#define COMMANDLINE_H
#include "adb.h"
// Callback used to handle the standard streams (stdout and stderr) sent by the
// device's upon receiving a command.
//
class StandardStreamsCallbackInterface {
public:
StandardStreamsCallbackInterface() {
}
// Handles the stdout output from devices supporting the Shell protocol.
virtual void OnStdout(const char* buffer, int length) = 0;
// Handles the stderr output from devices supporting the Shell protocol.
virtual void OnStderr(const char* buffer, int length) = 0;
// Indicates the communication is finished and returns the appropriate error
// code.
//
// |status| has the status code returning by the underlying communication
// channels
virtual int Done(int status) = 0;
protected:
static void OnStream(std::string* string, FILE* stream, const char* buffer, int length) {
if (string != nullptr) {
string->append(buffer, length);
} else {
fwrite(buffer, 1, length, stream);
fflush(stream);
}
}
private:
DISALLOW_COPY_AND_ASSIGN(StandardStreamsCallbackInterface);
};
// Default implementation that redirects the streams to the equilavent host
// stream or to a string
// passed to the constructor.
class DefaultStandardStreamsCallback : public StandardStreamsCallbackInterface {
public:
// If |stdout_str| is non-null, OnStdout will append to it.
// If |stderr_str| is non-null, OnStderr will append to it.
DefaultStandardStreamsCallback(std::string* stdout_str, std::string* stderr_str)
: stdout_str_(stdout_str), stderr_str_(stderr_str) {
}
void OnStdout(const char* buffer, int length) {
OnStream(stdout_str_, stdout, buffer, length);
}
void OnStderr(const char* buffer, int length) {
OnStream(stderr_str_, stderr, buffer, length);
}
int Done(int status) {
return status;
}
private:
std::string* stdout_str_;
std::string* stderr_str_;
DISALLOW_COPY_AND_ASSIGN(DefaultStandardStreamsCallback);
};
class SilentStandardStreamsCallbackInterface : public StandardStreamsCallbackInterface {
public:
SilentStandardStreamsCallbackInterface() = default;
void OnStdout(const char*, int) override final {}
void OnStderr(const char*, int) override final {}
int Done(int status) override final { return status; }
};
// Singleton.
extern DefaultStandardStreamsCallback DEFAULT_STANDARD_STREAMS_CALLBACK;
int adb_commandline(int argc, const char** argv);
void copy_to_file(int inFd, int outFd);
// Connects to the device "shell" service with |command| and prints the
// resulting output.
// if |callback| is non-null, stdout/stderr output will be handled by it.
int send_shell_command(
const std::string& command, bool disable_shell_protocol = false,
StandardStreamsCallbackInterface* callback = &DEFAULT_STANDARD_STREAMS_CALLBACK);
#endif // COMMANDLINE_H
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