3d2904cdf2
The reason behing this change is to increase the adb push/pull speed
with reduceing the number of packets sent between the host and the
device because the communication is heavily bound by packet latency.
The change maintains two way compatibility in the communication
protocol with negotiating a packet size between the target and the
host with the CONNECT packets.
After this change the push/pull speeds improved significantly
(measured from Linux-x86_64 with 100MB of data):
| Old push | Old pull || New push | New pull |
-----------------------------------------------------------
Hammerhead | 4.6 MB/s | 3.9 MB/s || 13.1 MB/s | 16.5 MB/s |
-----------------------------------------------------------
Volantis | 6.0 MB/s | 6.2 MS/s || 25.9 MB/s | 29.0 MB/s |
-----------------------------------------------------------
Fugu | 6.0 MB/s | 5.1 MB/s || 27.9 MB/s | 33.2 MB/s |
-----------------------------------------------------------
Change-Id: Id9625de31266e43394289e325c7e7e473379c5d8
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Copyright (C) 2011 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 __TRANSPORT_H
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#define __TRANSPORT_H
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#include <sys/types.h>
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#include <string>
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#include "adb.h"
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/*
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* Obtain a transport from the available transports.
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* If state is != kCsAny, only transports in that state are considered.
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* If serial is non-NULL then only the device with that serial will be chosen.
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* If no suitable transport is found, error is set.
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*/
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atransport* acquire_one_transport(ConnectionState state, TransportType type,
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const char* serial, std::string* error_out);
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void add_transport_disconnect(atransport* t, adisconnect* dis);
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void remove_transport_disconnect(atransport* t, adisconnect* dis);
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void kick_transport(atransport* t);
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void run_transport_disconnects(atransport* t);
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void update_transports(void);
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/* transports are ref-counted
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** get_device_transport does an acquire on your behalf before returning
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*/
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void init_transport_registration(void);
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std::string list_transports(bool long_listing);
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atransport* find_transport(const char* serial);
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void register_usb_transport(usb_handle* h, const char* serial,
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const char* devpath, unsigned writeable);
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/* cause new transports to be init'd and added to the list */
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int register_socket_transport(int s, const char* serial, int port, int local);
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// This should only be used for transports with connection_state == kCsNoPerm.
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void unregister_usb_transport(usb_handle* usb);
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/* these should only be used for the "adb disconnect" command */
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void unregister_transport(atransport* t);
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void unregister_all_tcp_transports();
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int check_header(apacket* p, atransport* t);
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int check_data(apacket* p);
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/* for MacOS X cleanup */
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void close_usb_devices();
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void send_packet(apacket* p, atransport* t);
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asocket* create_device_tracker(void);
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#endif /* __TRANSPORT_H */
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