/* See the DRL-LICENSE file for this file's software license. */

#ifndef _RATEROUTER_H_
#define _RATEROUTER_H_

#define _XOPEN_SOURCE 600 /* for pthread_rwlock_t */

#include <stdio.h>
#include <stdlib.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/un.h>
#include <sys/poll.h>

#include <arpa/inet.h>
#include <time.h>
#include <signal.h>
#include <math.h>
#include <limits.h>

#include <pthread.h>
#include <unistd.h>

#include <netdb.h>
#include <ifaddrs.h>  /* defines getifaddrs */
#include <string.h>

enum policies { POLICY_GRD = 1, POLICY_FPS = 2 };
enum commfabrics { COMM_MESH = 1, COMM_GOSSIP = 2 };
enum accountings { ACT_STANDARD = 1, ACT_SAMPLEHOLD = 2, ACT_SIMPLE = 3, ACT_MULTIPLE = 4 };
enum dampenings { DAMPEN_NONE = 0, DAMPEN_TEST = 1, DAMPEN_FAILED = 2, DAMPEN_PASSED = 3, DAMPEN_SKIP = 4 };
enum memberships { SWIM = 1, ZOOKEEPER = 2 };
enum failure_behaviors { PANIC = 1, QUORUM = 2 };

/* The comm library also has definitions for comfabrics. This prevents us
 * from defining them twice. */
#define COMM_DEFS

/* global constants */
#define IDENT_CLEAN_INTERVAL 5 /* in seconds */

#define LIMITER_LISTEN_PORT 9001

/**
 * The weight percentage increase that must occur before FPS does increase
 * dampening.
 */
#define LARGE_INCREASE_PERCENTAGE (0.05)

/**
 * Below this rate, a limiter is basically treated as idle, and its limit is
 * raised to allow for increases should the limiter suddenly become active.
 *
 * This is used for FPS only.  See estimate.c
 */
#define FLOW_START_THRESHOLD (10000)

#define CLOSE_ENOUGH (0.90)

#define GRD_BIG_DROP (0.90)

/**
 * All fields come from the ip protocol header.
 *
 * 1 byte for the protocol.
 * 4 bytes for the source ip.
 * 4 bytes for the destination ip.
 * 2 bytes for the source port.
 * 2 bytes for the destination port.
 *
 * 4+4+2+2+1 = 13.
 */
#define FLOWKEYSIZE (13)

/* Causes each identity to track every flow in two tables.  One table is as
 * specified in the config file.  The second is a standard table with
 * "perfect" accounting so that we can compare the two.  Turn this off for 
 * any type of production setting. */
//#define SHADOW_ACCTING

/* Turn this on to simulate network partitions.
 * Turn off for production settings. */
#define ALLOW_PARTITION

/* forward declare some structs */
struct limiter;
struct identity;

/* prototypes for threaded processing DRL model */
void handle_estimation(void *arg);

#endif