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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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 "icnet_socket_producer.h"
#define IDENTITY_NAME "cisco"
namespace icnet {
class CallbackContainer {
public:
CallbackContainer(unsigned long download_size = 0)
: buffer_(1400, 'X'), final_chunk_number_(0) {
content_object_.setContent((uint8_t *) buffer_.c_str(), 1400);
if (download_size > 0) {
final_chunk_number_ = static_cast<uint64_t>(std::ceil(download_size / 1400.0));
}
}
void processInterest(ProducerSocket &p, const Interest &interest) {
// std::cout << "Sending response to " << interest.getName() << std::endl;
}
void processIncomingInterest(ProducerSocket &p, const Interest &interest) {
content_object_.setName(Name(interest.getName().getWrappedStructure()));
if (final_chunk_number_ > 0) {
content_object_.setFinalChunkNumber(final_chunk_number_);
}
p.produce(content_object_);
}
private:
ContentObject content_object_;
std::string buffer_;
uint64_t final_chunk_number_;
};
class Signer {
public:
Signer()
: counter_(0), identity_name_(IDENTITY_NAME) {
};
~Signer() {
};
void onPacket(ProducerSocket &p, ContentObject &contentObject) {
counter_++;
KeyLocator kl;
contentObject.signWithSha256(kl);
}
private:
int counter_;
Name identity_name_;
};
void becomeDaemon() {
pid_t process_id = 0;
pid_t sid = 0;
// Create child process
process_id = fork();
// Indication of fork() failure
if (process_id < 0) {
printf("fork failed!\n");
// Return failure in exit status
exit(EXIT_FAILURE);
}
// PARENT PROCESS. Need to kill it.
if (process_id > 0) {
printf("process_id of child process %d \n", process_id);
// return success in exit status
exit(EXIT_SUCCESS);
}
//unmask the file mode
umask(0);
//set new session
sid = setsid();
if (sid < 0) {
// Return failure
exit(EXIT_FAILURE);
}
// Change the current working directory to root.
chdir("/");
// Close stdin. stdout and stderr
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
// Really start application
}
int main(int argc, char **argv) {
std::string name = "ccnx:/ccnxtest";
unsigned long download_size = 0;
bool daemon = false;
int opt;
while ((opt = getopt(argc, argv, "Ds:")) != -1) {
switch (opt) {
case 'D':
daemon = true;
break;
case 's':
download_size = std::stoul(optarg);
break;
default:
exit(EXIT_FAILURE);
}
}
if (argv[optind] == 0) {
std::cerr << "Using default name ccnx:/ccnxtest" << std::endl;
} else {
name = argv[optind];
}
if (daemon) {
becomeDaemon();
}
CallbackContainer stubs(download_size);
// Signer signer;
std::cout << "Setting name.. " << name << std::endl;
ProducerSocket p(Name(name.c_str()));
p.setSocketOption(GeneralTransportOptions::MAKE_MANIFEST, false);
// setting callbacks
p.setSocketOption(ProducerCallbacksOptions::INTEREST_INPUT,
(ProducerInterestCallback) bind(&CallbackContainer::processIncomingInterest,
&stubs,
std::placeholders::_1,
std::placeholders::_2));
p.setSocketOption(ProducerCallbacksOptions::CACHE_MISS,
(ProducerInterestCallback) bind(&CallbackContainer::processInterest,
&stubs,
std::placeholders::_1,
std::placeholders::_2));
p.attach();
p.serveForever();
return 0;
}
} // end namespace icnet
int main(int argc, char **argv) {
return icnet::main(argc, argv);
}
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