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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2018, 2019 embedded brains GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "client.h"
#ifdef _WIN32
#include <io.h>
#include <winsock2.h>
#else
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>
#endif
#include <fcntl.h>
#include <sys/stat.h>
#include <algorithm>
#include <cassert>
#include <cstring>
static ssize_t ReadFile(int fd, void* buf, size_t n) {
return ::read(fd, buf, n);
}
static ssize_t ReadSocket(int fd, void* buf, size_t n) {
// This cast is necessary for Windows
return ::recv(fd, static_cast<char*>(buf), n, 0);
}
void FileDescriptor::Open(const char* file) {
assert(fd_ == -1);
int oflag = O_RDONLY;
#ifdef _WIN32
oflag |= O_BINARY;
#endif
fd_ = ::open(file, oflag);
if (fd_ < 0) {
throw ErrnoException(std::string("cannot open file '") + file + "'");
}
reader_ = ReadFile;
}
void FileDescriptor::Connect(const char* host, uint16_t port) {
assert(fd_ == -1);
fd_ = ::socket(PF_INET, SOCK_STREAM, 0);
if (fd_ < 0) {
throw ErrnoException("cannot open socket");
}
struct sockaddr_in in_addr;
std::memset(&in_addr, 0, sizeof(in_addr));
in_addr.sin_family = AF_INET;
in_addr.sin_port = htons(port);
in_addr.sin_addr.s_addr = inet_addr(host);
int rv = ::connect(fd_, (struct sockaddr*)&in_addr, sizeof(in_addr));
if (rv != 0) {
throw ErrnoException(std::string("cannot connect to ") + host + " port " +
std::to_string(port));
}
reader_ = ReadSocket;
}
void FileDescriptor::Destroy() {
if (fd_ != -1) {
int rv = ::close(fd_);
if (rv != 0) {
std::cerr << "close failed: " << strerror(errno) << std::endl;
}
}
}
void Client::Run() {
uint64_t todo = UINT64_MAX;
if (limit_ != 0) {
todo = limit_;
}
while (stop_ == 0 && todo > 0) {
int buf[8192];
size_t m = std::min(static_cast<uint64_t>(sizeof(buf)), todo);
ssize_t n = input_.Read(buf, m);
if (n <= 0) {
break;
}
rtems_record_client_run(&base_, buf, static_cast<size_t>(n));
todo -= static_cast<size_t>(n);
}
}
void Client::Destroy() {
input_.Destroy();
rtems_record_client_destroy(&base_);
}
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