Cellular Network Infrastructure » Radio Access Network » OsmoTRX

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <stdio.h>

#include <sched.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <fcntl.h>

int main(int argc, char **argv) {

	struct sched_param param;

	int rc;

	int socketFd, clientFd;

	struct sockaddr_in host;

	socklen_t hostlen = sizeof(host);

	memset(&param, 0, sizeof(param));

	param.sched_priority = 18;

	fprintf(stderr, "Setting SCHED_RR priority %d\n", param.sched_priority);

	rc = sched_setscheduler(getpid(), SCHED_RR, &param);

	if (rc != 0) {

		fprintf(stderr, "Setting SCHED_RR failed");

		return -1;

	}

	socketFd = socket(AF_INET, SOCK_STREAM, 0);

	if (socketFd < 0)

	{

		fprintf(stderr, "socket error %d\n", socketFd);

		return -1;

	}

	fcntl(socketFd, F_SETFL, O_NONBLOCK);

	memset((void *)&host, 0, sizeof(host));

	host.sin_family = AF_INET;

	host.sin_addr.s_addr = INADDR_ANY;

	host.sin_port = htons(5000);

	if (bind(socketFd, (struct sockaddr*)&host, sizeof(host)) < 0)

	{

		fprintf(stderr, "bind error\n");

		return -1;

	}

	if (listen(socketFd, SOMAXCONN))

	{

		fprintf(stderr, "listen error\n");

		return -1;

	}

	while (1) {

	    memset(&host, 0, sizeof(host));

	    clientFd = accept(socketFd, (struct sockaddr*)&host, &hostlen);

	}

	return 0;

}