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/*

 * Project: S.Ha.R.K.

 *

 * Coordinators:

 *   Giorgio Buttazzo    <giorgio@sssup.it>

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *

 * Authors     :

 *   Giacomo Guidi       <giacomo@gandalf.sssup.it>

 *   Tullio Facchinetti  <tullio.facchinetti@unipv.it>

 *

 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)

 *

 * http://www.sssup.it

 * http://retis.sssup.it

 * http://shark.sssup.it

 * http://robot.unipv.it

 */

/*

 * This program 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 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

#include <kernel/kern.h>

#include <FTrace_chunk.h>

#include <FTrace_udp.h>

#include <tracer.h>

extern unsigned int clk_per_msec;

int main(int argc, char **argv)

{

  long long i;

  int a,b,c;

  struct timespec start,end,diff;

  SYS_FLAGS f;

  /**

    *  Create 3 chunks for storing the tracer events.

    *  Explanation of flags:

    *  FTRACE_CHUNK_FLAG_FREE : the chunk is free to use

    *  FTRACE_CHUNK_FLAG_CYC  : the chunk stores events in a cyclical way.

    *                           When the chunk is full,

    *                           it will continue from the head.

    *  FTRACE_CHUNK_FLAG_JTN  : when the chunk is full,

    *                           it jumps to the next chunk.

    */

  a = FTrace_chunk_create(1000000, 1000000, FTRACE_CHUNK_FLAG_FREE | FTRACE_CHUNK_FLAG_CYC);

  b = FTrace_chunk_create(1000000, 1000000, FTRACE_CHUNK_FLAG_FREE | FTRACE_CHUNK_FLAG_JTN);

  c = FTrace_chunk_create(1000000, 1000000, FTRACE_CHUNK_FLAG_FREE | FTRACE_CHUNK_FLAG_CYC);

  /**

   *  Link the 3 chunks together.

   *  It is important to link before you can jump from one to another.

   */

  FTrace_chunk_link(a,b);

  FTrace_chunk_link(b,c);

  /** Select the first chunk for saving the events. */

  FTrace_actual_chunk_select(a);

  kern_gettime(&start);

  /** Start the tracer. */

  FTrace_enable();

  /** Enable filtering for timer related events. */

  FTrace_set_filter(FTrace_filter_timer, 1);

  TRACER_LOGEVENT(FTrace_EVT_trace_start,proc_table[exec_shadow].context,clk_per_msec);

  for (i=0;i<10;i++)

    if (proc_table[i].context != 0) TRACER_LOGEVENT(FTrace_EVT_id,

                                        (unsigned short int)proc_table[i].context,i);

  for (i=0;i<1000000000;i++);

  /** Enable filtering for timer related events. */

  FTrace_set_filter(FTrace_filter_timer, 0);

  /** Change the chunk where the events are stored. */

  TRACER_LOGEVENT(FTrace_EVT_next_chunk,0,0);

  f = kern_fsave();

  __asm__("cpuid":::"eax","ebx","ecx","edx");

  FAST_TRACER_LOGEVENT(FTrace_EVT_ipoint,1000,0);

  FAST_TRACER_LOGEVENT(FTrace_EVT_ipoint,2000,0);

  FAST_TRACER_LOGEVENT(FTrace_EVT_ipoint,3000,0);

  FAST_TRACER_LOGEVENT(FTrace_EVT_ipoint,4000,0);

  FAST_TRACER_LOGEVENT(FTrace_EVT_ipoint,5000,0);

  __asm__("cpuid":::"eax","ebx","ecx","edx");

  kern_frestore(f);

  TRACER_LOGEVENT(FTrace_EVT_ipoint,6000,0);

  for (i=0;i<1000000000;i++);

  /** Store a TFrace stop event. */

  TRACER_LOGEVENT(FTrace_EVT_trace_stop,0,0);

  /** Stop the tracer. */

  FTrace_disable();

  kern_gettime(&end);

  SUBTIMESPEC(&end,&start,&diff);

  cprintf("Logged Time %d s %d us\n",(int)diff.tv_sec,(int)diff.tv_nsec/1000);

  /** Initialize the network for remotely saving the trace.  */

  FTrace_OSD_init_udp(1, "192.168.1.10", "192.168.1.1");

  /**

   * You may want to save the events to disk. In that case, simply change

   * the network initialization instruction with the following line:

   *  

   * FTrace_init_disk_writer("trace.dat", 0, NULL, NULL);

   *

   */

  /** Save the chunk. */

  FTrace_send_chunk(a, 0, FTRACE_CHUNK_FLAG_FREE | FTRACE_CHUNK_FLAG_CYC);

  FTrace_send_chunk(b, 0, FTRACE_CHUNK_FLAG_FREE | FTRACE_CHUNK_FLAG_JTN);

  return 0;

}