platform_system_core/adb/daemon/usb.h
Jerry Zhang 55205a565b adb: Pre allocate kernel memory
This allows reliable use of larger buffer sizes.
Max r/w size is set only when that preallocation
is successful so that memory is guaranteed to be
available.

Bug: 31722483
Test: adb push with multi GB files
Change-Id: Ia0459ca051988abb144645871792e8f840dd3ff7
2017-02-13 14:20:47 -08:00

45 lines
1.3 KiB
C++

#pragma once
/*
* 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.
*/
#include <atomic>
#include <condition_variable>
#include <mutex>
struct usb_handle {
usb_handle() : kicked(false) {
}
std::condition_variable notify;
std::mutex lock;
std::atomic<bool> kicked;
bool open_new_connection = true;
int (*write)(usb_handle* h, const void* data, int len);
int (*read)(usb_handle* h, void* data, int len);
void (*kick)(usb_handle* h);
void (*close)(usb_handle* h);
// FunctionFS
int control = -1;
int bulk_out = -1; /* "out" from the host's perspective => source for adbd */
int bulk_in = -1; /* "in" from the host's perspective => sink for adbd */
int max_rw;
};
bool init_functionfs(struct usb_handle* h);