lib/lufa/Projects/Webserver/Lib/uIPManagement.h


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/*
             LUFA Library
     Copyright (C) Dean Camera, 2017.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

/*
  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)

  Permission to use, copy, modify, distribute, and sell this
  software and its documentation for any purpose is hereby granted
  without fee, provided that the above copyright notice appear in
  all copies and that both that the copyright notice and this
  permission notice and warranty disclaimer appear in supporting
  documentation, and that the name of the author not be used in
  advertising or publicity pertaining to distribution of the
  software without specific, written prior permission.

  The author disclaims all warranties with regard to this
  software, including all implied warranties of merchantability
  and fitness.  In no event shall the author be liable for any
  special, indirect or consequential damages or any damages
  whatsoever resulting from loss of use, data or profits, whether
  in an action of contract, negligence or other tortious action,
  arising out of or in connection with the use or performance of
  this software.
*/

/** \file
 *
 *  Header file for uIPManagement.c.
 */

#ifndef _UIP_MANAGEMENT_H_
#define _UIP_MANAGEMENT_H_

	/* Includes: */
		#include <LUFA/Drivers/USB/USB.h>

		#include <uip.h>
		#include <uip_arp.h>
		#include <uip-split.h>
		#include <timer.h>

		#include "Config/AppConfig.h"

		#include "DHCPClientApp.h"
		#include "DHCPServerApp.h"
		#include "HTTPServerApp.h"
		#include "TELNETServerApp.h"

	/* External Variables: */
		extern struct uip_eth_addr MACAddress;

	/* Function Prototypes: */
		void uIPManagement_Init(void);
		void uIPManagement_ManageNetwork(void);
		void uIPManagement_TCPCallback(void);
		void uIPManagement_UDPCallback(void);

		#if defined(INCLUDE_FROM_UIPMANAGEMENT_C)
			static void uIPManagement_ProcessIncomingPacket(void);
			static void uIPManagement_ManageConnections(void);
		#endif

#endif
/*
    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.

    This file is part of ChibiOS/RT.

    ChibiOS/RT is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    ChibiOS/RT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "ch.h"
#include "test.h"

/**
 * @page test_benchmarks Kernel Benchmarks
 *
 * File: @ref testbmk.c
 *
 * <h2>Description</h2>
 * This module implements a series of system benchmarks. The benchmarks are
 * useful as a stress test and as a reference when comparing ChibiOS/RT
 * with similar systems.
 *
 * <h2>Objective</h2>
 * Objective of the test module is to provide a performance index for the
 * most critical system subsystems. The performance numbers allow to
 * discover performance regressions between successive ChibiOS/RT releases.
 *
 * <h2>Preconditions</h2>
 * None.
 *
 * <h2>Test Cases</h2>
 * - @subpage test_benchmarks_001
 * - @subpage test_benchmarks_002
 * - @subpage test_benchmarks_003
 * - @subpage test_benchmarks_004
 * - @subpage test_benchmarks_005
 * - @subpage test_benchmarks_006
 * - @subpage test_benchmarks_007
 * - @subpage test_benchmarks_008
 * - @subpage test_benchmarks_009
 * - @subpage test_benchmarks_010
 * - @subpage test_benchmarks_011
 * - @subpage test_benchmarks_012
 * - @subpage test_benchmarks_013
 * .
 * @file testbmk.c Kernel Benchmarks
 * @brief Kernel Benchmarks source file
 * @file testbmk.h
 * @brief Kernel Benchmarks header file
 */

static Semaphore sem1;
#if CH_USE_MUTEXES
static Mutex mtx1;
#endif

static msg_t thread1(void *p) {
  msg_t msg;

  (void)p;
  do {
    chMsgRelease(msg = chMsgWait());
  } while (msg);
  return 0;
}

#ifdef __GNUC__
__attribute__((noinline))
#endif
static unsigned int msg_loop_test(Thread *tp) {

  uint32_t n = 0;
  test_wait_tick();
  test_start_timer(1000);
  do {
    (void)chMsgSend(tp, 1);
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  (void)chMsgSend(tp, 0);
  return n;
}

/**
 * @page test_benchmarks_001 Messages performance #1
 *
 * <h2>Description</h2>
 * A message server thread is created with a lower priority than the client
 * thread, the messages throughput per second is measured and the result
 * printed in the output log.
 */

static void bmk1_execute(void) {
  uint32_t n;

  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()-1, thread1, NULL);
  n = msg_loop_test(threads[0]);
  test_wait_threads();
  test_print("--- Score : ");
  test_printn(n);
  test_print(" msgs/S, ");
  test_printn(n << 1);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk1 = {
  "Benchmark, messages #1",
  NULL,
  NULL,
  bmk1_execute
};

/**
 * @page test_benchmarks_002 Messages performance #2
 *
 * <h2>Description</h2>
 * A message server thread is created with an higher priority than the client
 * thread, the messages throughput per second is measured and the result
 * printed in the output log.
 */

static void bmk2_execute(void) {
  uint32_t n;

  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+1, thread1, NULL);
  n = msg_loop_test(threads[0]);
  test_wait_threads();
  test_print("--- Score : ");
  test_printn(n);
  test_print(" msgs/S, ");
  test_printn(n << 1);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk2 = {
  "Benchmark, messages #2",
  NULL,
  NULL,
  bmk2_execute
};

static msg_t thread2(void *p) {

  return (msg_t)p;
}

/**
 * @page test_benchmarks_003 Messages performance #3
 *
 * <h2>Description</h2>
 * A message server thread is created with an higher priority than the client
 * thread, four lower priority threads crowd the ready list, the messages
 * throughput per second is measured while the ready list and the result
 * printed in the output log.
 */

static void bmk3_execute(void) {
  uint32_t n;

  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+1, thread1, NULL);
  threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()-2, thread2, NULL);
  threads[2] = chThdCreateStatic(wa[2], WA_SIZE, chThdGetPriority()-3, thread2, NULL);
  threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()-4, thread2, NULL);
  threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()-5, thread2, NULL);
  n = msg_loop_test(threads[0]);
  test_wait_threads();
  test_print("--- Score : ");
  test_printn(n);
  test_print(" msgs/S, ");
  test_printn(n << 1);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk3 = {
  "Benchmark, messages #3",
  NULL,
  NULL,
  bmk3_execute
};

/**
 * @page test_benchmarks_004 Context Switch performance
 *
 * <h2>Description</h2>
 * A thread is created that just performs a @p chSchGoSleepS() into a loop,
 * the thread is awakened as fast is possible by the tester thread.<br>
 * The Context Switch performance is calculated by measuring the number of
 * iterations after a second of continuous operations.
 */

msg_t thread4(void *p) {
  msg_t msg;
  Thread *self = chThdSelf();

  (void)p;
  chSysLock();
  do {
    chSchGoSleepS(THD_STATE_SUSPENDED);
    msg = self->p_u.rdymsg;
  } while (msg == RDY_OK);
  chSysUnlock();
  return 0;
}

static void bmk4_execute(void) {
  Thread *tp;
  uint32_t n;

  tp = threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+1, thread4, NULL);
  n = 0;
  test_wait_tick();
  test_start_timer(1000);
  do {
    chSysLock();
    chSchWakeupS(tp, RDY_OK);
    chSchWakeupS(tp, RDY_OK);
    chSchWakeupS(tp, RDY_OK);
    chSchWakeupS(tp, RDY_OK);
    chSysUnlock();
    n += 4;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  chSysLock();
  chSchWakeupS(tp, RDY_TIMEOUT);
  chSysUnlock();

  test_wait_threads();
  test_print("--- Score : ");
  test_printn(n * 2);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk4 = {
  "Benchmark, context switch",
  NULL,
  NULL,
  bmk4_execute
};

/**
 * @page test_benchmarks_005 Threads performance, full cycle
 *
 * <h2>Description</h2>
 * Threads are continuously created and terminated into a loop. A full
 * @p chThdCreateStatic() / @p chThdExit() / @p chThdWait() cycle is performed
 * in each iteration.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void bmk5_execute(void) {

  uint32_t n = 0;
  void *wap = wa[0];
  tprio_t prio = chThdGetPriority() - 1;
  test_wait_tick();
  test_start_timer(1000);
  do {
    chThdWait(chThdCreateStatic(wap, WA_SIZE, prio, thread2, NULL));
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n);
  test_println(" threads/S");
}

ROMCONST struct testcase testbmk5 = {
  "Benchmark, threads, full cycle",
  NULL,
  NULL,
  bmk5_execute
};

/**
 * @page test_benchmarks_006 Threads performance, create/exit only
 *
 * <h2>Description</h2>
 * Threads are continuously created and terminated into a loop. A partial
 * @p chThdCreateStatic() / @p chThdExit() cycle is performed in each
 * iteration, the @p chThdWait() is not necessary because the thread is
 * created at an higher priority so there is no need to wait for it to
 * terminate.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void bmk6_execute(void) {

  uint32_t n = 0;
  void *wap = wa[0];
  tprio_t prio = chThdGetPriority() + 1;
  test_wait_tick();
  test_start_timer(1000);
  do {
    chThdCreateStatic(wap, WA_SIZE, prio, thread2, NULL);
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n);
  test_println(" threads/S");
}

ROMCONST struct testcase testbmk6 = {
  "Benchmark, threads, create only",
  NULL,
  NULL,
  bmk6_execute
};

/**
 * @page test_benchmarks_007 Mass reschedule performance
 *
 * <h2>Description</h2>
 * Five threads are created and atomically rescheduled by resetting the
 * semaphore where they are waiting on. The operation is performed into a
 * continuous loop.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static msg_t thread3(void *p) {

  (void)p;
  while (!chThdShouldTerminate())
    chSemWait(&sem1);
  return 0;
}

static void bmk7_setup(void) {

  chSemInit(&sem1, 0);
}

static void bmk7_execute(void) {
  uint32_t n;

  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()+5, thread3, NULL);
  threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()+4, thread3, NULL);
  threads[2] = chThdCreateStatic(wa[2], WA_SIZE, chThdGetPriority()+3, thread3, NULL);
  threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()+2, thread3, NULL);
  threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()+1, thread3, NULL);

  n = 0;
  test_wait_tick();
  test_start_timer(1000);
  do {
    chSemReset(&sem1, 0);
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_terminate_threads();
  chSemReset(&sem1, 0);
  test_wait_threads();

  test_print("--- Score : ");
  test_printn(n);
  test_print(" reschedules/S, ");
  test_printn(n * 6);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk7 = {
  "Benchmark, mass reschedule, 5 threads",
  bmk7_setup,
  NULL,
  bmk7_execute
};

/**
 * @page test_benchmarks_008 I/O Round-Robin voluntary reschedule.
 *
 * <h2>Description</h2>
 * Five threads are created at equal priority, each thread just increases a
 * variable and yields.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static msg_t thread8(void *p) {

  do {
    chThdYield();
    chThdYield();
    chThdYield();
    chThdYield();
    (*(uint32_t *)p) += 4;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while(!chThdShouldTerminate());
  return 0;
}

static void bmk8_execute(void) {
  uint32_t n;

  n = 0;
  test_wait_tick();

  threads[0] = chThdCreateStatic(wa[0], WA_SIZE, chThdGetPriority()-1, thread8, (void *)&n);
  threads[1] = chThdCreateStatic(wa[1], WA_SIZE, chThdGetPriority()-1, thread8, (void *)&n);
  threads[2] = chThdCreateStatic(wa[2], WA_SIZE, chThdGetPriority()-1, thread8, (void *)&n);
  threads[3] = chThdCreateStatic(wa[3], WA_SIZE, chThdGetPriority()-1, thread8, (void *)&n);
  threads[4] = chThdCreateStatic(wa[4], WA_SIZE, chThdGetPriority()-1, thread8, (void *)&n);

  chThdSleepSeconds(1);
  test_terminate_threads();
  test_wait_threads();

  test_print("--- Score : ");
  test_printn(n);
  test_println(" ctxswc/S");
}

ROMCONST struct testcase testbmk8 = {
  "Benchmark, round robin context switching",
  NULL,
  NULL,
  bmk8_execute
};

/**
 * @page test_benchmarks_009 I/O Queues throughput
 *
 * <h2>Description</h2>
 * Four bytes are written and then read from an @p InputQueue into a continuous
 * loop.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void bmk9_execute(void) {
  uint32_t n;
  static uint8_t ib[16];
  static InputQueue iq;

  chIQInit(&iq, ib, sizeof(ib), NULL);
  n = 0;
  test_wait_tick();
  test_start_timer(1000);
  do {
    chIQPutI(&iq, 0);
    chIQPutI(&iq, 1);
    chIQPutI(&iq, 2);
    chIQPutI(&iq, 3);
    (void)chIQGet(&iq);
    (void)chIQGet(&iq);
    (void)chIQGet(&iq);
    (void)chIQGet(&iq);
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n * 4);
  test_println(" bytes/S");
}

ROMCONST struct testcase testbmk9 = {
  "Benchmark, I/O Queues throughput",
  NULL,
  NULL,
  bmk9_execute
};

/**
 * @page test_benchmarks_010 Virtual Timers set/reset performance
 *
 * <h2>Description</h2>
 * A virtual timer is set and immediately reset into a continuous loop.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void tmo(void *param) {(void)param;}

static void bmk10_execute(void) {
  static VirtualTimer vt1, vt2;
  uint32_t n = 0;

  test_wait_tick();
  test_start_timer(1000);
  do {
    chSysLock();
    chVTSetI(&vt1, 1, tmo, NULL);
    chVTSetI(&vt2, 10000, tmo, NULL);
    chVTResetI(&vt1);
    chVTResetI(&vt2);
    chSysUnlock();
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n * 2);
  test_println(" timers/S");
}

ROMCONST struct testcase testbmk10 = {
  "Benchmark, virtual timers set/reset",
  NULL,
  NULL,
  bmk10_execute
};

/**
 * @page test_benchmarks_011 Semaphores wait/signal performance
 *
 * <h2>Description</h2>
 * A counting semaphore is taken/released into a continuous loop, no Context
 * Switch happens because the counter is always non negative.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void bmk11_setup(void) {

  chSemInit(&sem1, 1);
}

static void bmk11_execute(void) {
  uint32_t n = 0;

  test_wait_tick();
  test_start_timer(1000);
  do {
    chSemWait(&sem1);
    chSemSignal(&sem1);
    chSemWait(&sem1);
    chSemSignal(&sem1);
    chSemWait(&sem1);
    chSemSignal(&sem1);
    chSemWait(&sem1);
    chSemSignal(&sem1);
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n * 4);
  test_println(" wait+signal/S");
}

ROMCONST struct testcase testbmk11 = {
  "Benchmark, semaphores wait/signal",
  bmk11_setup,
  NULL,
  bmk11_execute
};

#if CH_USE_MUTEXES
/**
 * @page test_benchmarks_012 Mutexes lock/unlock performance
 *
 * <h2>Description</h2>
 * A mutex is locked/unlocked into a continuous loop, no Context Switch happens
 * because there are no other threads asking for the mutex.<br>
 * The performance is calculated by measuring the number of iterations after
 * a second of continuous operations.
 */

static void bmk12_setup(void) {

  chMtxInit(&mtx1);
}

static void bmk12_execute(void) {
  uint32_t n = 0;

  test_wait_tick();
  test_start_timer(1000);
  do {
    chMtxLock(&mtx1);
    chMtxUnlock();
    chMtxLock(&mtx1);
    chMtxUnlock();
    chMtxLock(&mtx1);
    chMtxUnlock();
    chMtxLock(&mtx1);
    chMtxUnlock();
    n++;
#if defined(SIMULATOR)
    ChkIntSources();
#endif
  } while (!test_timer_done);
  test_print("--- Score : ");
  test_printn(n * 4);
  test_println(" lock+unlock/S");
}

ROMCONST struct testcase testbmk12 = {
  "Benchmark, mutexes lock/unlock",
  bmk12_setup,
  NULL,
  bmk12_execute
};
#endif

/**
 * @page test_benchmarks_013 RAM Footprint
 *
 * <h2>Description</h2>
 * The memory size of the various kernel objects is printed.
 */

static void bmk13_execute(void) {

  test_print("--- System: ");
  test_printn(sizeof(ReadyList) + sizeof(VTList) + IDLE_THREAD_STACK_SIZE +
              (sizeof(Thread) + sizeof(struct intctx) + sizeof(struct extctx) +
               INT_REQUIRED_STACK) * 2);
  test_println(" bytes");
  test_print("--- Thread: ");
  test_printn(sizeof(Thread));
  test_println(" bytes");
  test_print("--- Timer : ");
  test_printn(sizeof(VirtualTimer));
  test_println(" bytes");
  test_print("--- Semaph: ");
  test_printn(sizeof(Semaphore));
  test_println(" bytes");
#if CH_USE_EVENTS
  test_print("--- EventS: ");
  test_printn(sizeof(EventSource));
  test_println(" bytes");
  test_print("--- EventL: ");
  test_printn(sizeof(EventListener));
  test_println(" bytes");
#endif
#if CH_USE_MUTEXES
  test_print("--- Mutex : ");
  test_printn(sizeof(Mutex));
  test_println(" bytes");
#endif
#if CH_USE_CONDVARS
  test_print("--- CondV.: ");
  test_printn(sizeof(CondVar));
  test_println(" bytes");
#endif
#if CH_USE_QUEUES
  test_print("--- Queue : ");
  test_printn(sizeof(GenericQueue));
  test_println(" bytes");
#endif
#if CH_USE_MAILBOXES
  test_print("--- MailB.: ");
  test_printn(sizeof(Mailbox));
  test_println(" bytes");
#endif
}

ROMCONST struct testcase testbmk13 = {
  "Benchmark, RAM footprint",
  NULL,
  NULL,
  bmk13_execute
};

/**
 * @brief   Test sequence for benchmarks.
 */
ROMCONST struct testcase * ROMCONST patternbmk[] = {
#if !TEST_NO_BENCHMARKS
  &testbmk1,
  &testbmk2,
  &testbmk3,
  &testbmk4,
  &testbmk5,
  &testbmk6,
  &testbmk7,
  &testbmk8,
  &testbmk9,
  &testbmk10,
  &testbmk11,
#if CH_USE_MUTEXES
  &testbmk12,
#endif
  &testbmk13,
#endif
  NULL
};