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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.
*/
/**
* @file rta_Framework_private.h
* @brief <#Brief Description#>
*
* <#Detailed Description#>
*
*/
#ifndef Libccnx_rta_Framework_private_h
#define Libccnx_rta_Framework_private_h
#include <stdlib.h>
#include <sys/queue.h>
#include <pthread.h>
#include "rta_ProtocolStack.h"
#include "rta_Connection.h"
#include "rta_Framework_Services.h"
#include "rta_ConnectionTable.h"
#include <parc/algol/parc_EventScheduler.h>
#include <parc/algol/parc_Event.h>
#include <parc/algol/parc_EventTimer.h>
#include <parc/algol/parc_EventSignal.h>
// the router's wrapped time frquency is 1 msec
#define WTHZ 1000
#define FC_MSEC_PER_TICK (1000 / WTHZ)
#define FC_USEC_PER_TICK (1000000 / WTHZ)
#define MSEC_TO_TICKS(msec) ((msec < FC_MSEC_PER_TICK) ? 1 : msec / FC_MSEC_PER_TICK)
// ===================================================
typedef struct framework_protocol_holder {
RtaProtocolStack *stack;
uint64_t kv_hash;
int stack_id;
TAILQ_ENTRY(framework_protocol_holder) list;
} FrameworkProtocolHolder;
struct rta_framework {
PARCRingBuffer1x1 *commandRingBuffer;
PARCNotifier *commandNotifier;
PARCEvent *commandEvent;
//struct event_config *cfg;
int udp_socket;
PARCEventScheduler *base;
PARCEventSignal *signal_int;
PARCEventSignal *signal_usr1;
PARCEventTimer *tick_event;
PARCEvent *udp_event;
PARCEventTimer *transmit_statistics_event;
PARCEventSignal *signal_pipe;
struct timeval starttime;
ticks clock_ticks; // at WTHZ
// used by seed48 and nrand48
unsigned short seed[3];
pthread_t thread;
unsigned connid_next;
// operations that modify global state need
// to be locked.
pthread_mutex_t status_mutex;
pthread_cond_t status_cv;
RtaFrameworkStatus status;
// signals from outside control thread to event scheduler
// that it should exit its event loop. This does
// not need to be protected in mutex (its not
// a condition variable). We check for this
// inside the HZ timer callback.
bool killme;
// A list of all our in-use protocol stacks
TAILQ_HEAD(, framework_protocol_holder) protocols_head;
RtaConnectionTable *connectionTable;
RtaLogger *logger;
};
int rtaFramework_CloseConnection(RtaFramework *framework, RtaConnection *connection);
/**
* Lock the frameworks state machine status
*
* Will block until the state machine status is locked
*
* @param [in] framework An allocated framework
*
* Example:
* @code
* <#example#>
* @endcode
*/
void rta_Framework_LockStatus(RtaFramework *framework);
/**
* Unlock the state mahcines status
*
* Will assert if we do not currently hold the lock
*
* @param [in] framework An allocated framework
*
* Example:
* @code
* <#example#>
* @endcode
*/
void rta_Framework_UnlockStatus(RtaFramework *framework);
/**
* Wait on the state machine's condition variable to be signaled
*
* <#Paragraphs Of Explanation#>
*
* @param [in] framework An allocated framework
*
* Example:
* @code
* <#example#>
* @endcode
*/
void rta_Framework_WaitStatus(RtaFramework *framework);
/**
* Broadcast on the state machine's condition variable (signal it)
*
* <#Paragraphs Of Explanation#>
*
* @param [in] framework An allocated framework
*
* Example:
* @code
* <#example#>
* @endcode
*/
void rta_Framework_BroadcastStatus(RtaFramework *framework);
#endif
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