/usr/include/ola/io/IOVecInterface.h is in libola-dev 0.10.3.nojsmin-2+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | /*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* IOVecInterface.h
* An interface for a class which provides a way of accessing it's data via
* iovecs. This allows us to write the contents of the class to a network
* socket without incurring a copy.
* Copyright (C) 2013 Simon Newton
*/
#ifndef INCLUDE_OLA_IO_IOVECINTERFACE_H_
#define INCLUDE_OLA_IO_IOVECINTERFACE_H_
#include <stdlib.h>
namespace ola {
namespace io {
/**
* Portable structure for scatter/gather data. This is binary compatible to
* iovec on *nix. On Windows, this needs to be converted to WSABUF for socket
* operations.
*/
struct IOVec {
public:
/*
* Contains the address of a buffer.
*/
void* iov_base;
/*
* Contains the length of the buffer.
*/
size_t iov_len;
};
/**
* The interface for an object which can be converted to an array of IOVecs for
* use with the sendmsg() or WSASendMsg call.
*/
class IOVecInterface {
public:
virtual ~IOVecInterface() {}
/*
* Returns a pointer to an array of IOVecs and sets io_count to be the
* number of IOVecs in the array.
*/
virtual const struct IOVec *AsIOVec(int *io_count) const = 0;
/**
* Removes the specified number of bytes from the object.
*/
virtual void Pop(unsigned int bytes) = 0;
/*
* Frees the IOVec array returned by AsIOVec()
*/
static void FreeIOVec(const struct IOVec *iov) {
if (iov)
delete[] iov;
}
};
} // namespace io
} // namespace ola
#endif // INCLUDE_OLA_IO_IOVECINTERFACE_H_
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