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#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>

#include "types.h"
#include <trace.h>
#include <types.h>

static char *names[]={
  "reserved",
  "hoops",
  /*--*/
  "create",
  "activate",
  "schedule",
  "delay",
  "sleep",
  "endcycle",
  "destroy",
  "intactiv",
  /*--*/
  "user0",
  "user1",
  "user2",
  "user3",
  "user4",
  "user5",
  "user6",
  "user7",
  /*--*/    
  "wait",
  "waitnb",
  "signal"
};

int classtable[TRC_NUMCLASSES+1]={
  TRC_F_TRACER,
  TRC_F_SYSTEM,
  TRC_F_USER,
  TRC_F_SEM,
  TRC_F_LAST
};

int event_class(int ev)
{
  int i;
  if (ev<0||ev>=TRC_NUMEVENTS) return -1;
  for (i=0;i<TRC_NUMCLASSES;i++)
    if (ev>=classtable[i]&&ev<classtable[i+1]) return i;
  return -1;
}

char *event_name(int ev)
{
  if (ev<0||ev>=TRC_NUMEVENTS) return "unknown";
  return names[ev];
}

char *event_hexdump(u_int8_t *ptr,int maxsize)
{
  static char buffer[256];
  int i;
  for (i=0;i<maxsize;i++) sprintf(buffer+i*2,"%02x",*(ptr+i));
  buffer[maxsize*2]='\0';
  return buffer;
}

char *event_strdump(u_int8_t *ptr, int maxsize)
{
  static char buffer[256];
  memcpy(buffer,ptr,maxsize);
  buffer[maxsize]='\0';
  return buffer;
}


char *format_time(long time)
{
  static char buffer[256];
 
  if (time<1000l) {
    sprintf(buffer,"%li",time);
    return buffer;
  }
  if (time<1000000l) {
    sprintf(buffer,"%li,%03li",time/1000l,time%1000l);
    return buffer;
  }
  sprintf(buffer,"%li,%03li,%03li",
          (time/1000000l),
          (time%1000000l)/1000l,
          time%1000l);
  return buffer;         
}

#ifndef O_BINARY
#define O_BINARY 0
#endif

int read_trace(char *filename,int (*func)(trc_event_t *))
{
  trc_event_t buffer;
  int fin;
  int res;
 
  fin=open(filename,O_RDONLY|O_BINARY);
  if (fin==-1) return -1;
  for (;;) {
    res=read(fin,&buffer,sizeof(trc_event_t));
    if (res!=sizeof(trc_event_t)) {
      close(fin);
      return res==0?0:-2;
    }
    res=(*func)(&buffer);
    if (res!=0) {
      close(fin);
      return res;
    }
  }
  close(fin);
  return 0;
}