calo/unpacking/readev-orig.c

/***************************************************************
 *
 * routine read_ev: routine to extract an event information 
 * from file acquired with Pamela acquisition programs
 *
 * June 2002
 *
 ***************************************************************/
/*
 * include needed system headers
 */
#include <stdio.h>       /* include standard i/o library */
#include <stdlib.h>      /* include standard library */
#include <string.h>      /* include string library */
#include <unistd.h>      /* include unix standard library */
#include <sys/types.h>   /* */
#include <sys/stat.h>    /* */
#include <fcntl.h>       /* */
#include <errno.h>       /* error simbol definitions */
#include <time.h>        /* system time definitions */
#include <math.h>        /* math library */

void readev_(long *evnum, long *systime, long *len, unsigned short *data, int *error, int *fd)
{
  long header;
  const char *hdr = (char *)&header;

  *error = 0;

/* search the header */ 

  *error = read(*fd,&header,sizeof(long)) == sizeof(long) ? 0 : -1;
  while (!(*error) && (header != 0xaaaaaaaa)) {
    header >>= 8;
    *error = read(*fd,hdr+3,sizeof(char)) == sizeof(char) ? 0 : -1;
  }
  if (*error) return;      /* file read error searching the header: exit */

/* read the event number */

  *error = read(*fd,evnum,sizeof(long)) == sizeof(long) ? 0 : -1;
  if (*error) return;      /* error reading the event number: exit */
  printf ("%d \n", evnum); 
/* read the system time */

  *error = read(*fd,systime,sizeof(long)) == sizeof(long) ? 0 : -1;
  if (*error) return;      /* error reading the system time: exit */
  printf ("%d \n", systime); 

/* read the event length */

  *error = read(*fd,len,sizeof(long)) == sizeof(long) ? 0 : -1;
  if (*error) return;      /* error reading the event length: exit */
  printf ("%d \n", len); 

/* read the packet */

  *error = read(*fd,data,sizeof(char)*(*len)) == sizeof(char)*(*len) ? 0 : -1;
  if (*error) return;      /* error reading the event length: exit */
  swab(data,data,*len);
  *error = 0;
}


1	mocchiut	1.1	/***************************************************************
2			*
3			* routine read_ev: routine to extract an event information
4			* from file acquired with Pamela acquisition programs
5			*
6			* June 2002
7			*
8			***************************************************************/
9			/*
10			* include needed system headers
11			*/
12			#include <stdio.h> /* include standard i/o library */
13			#include <stdlib.h> /* include standard library */
14			#include <string.h> /* include string library */
15			#include <unistd.h> /* include unix standard library */
16			#include <sys/types.h> /* */
17			#include <sys/stat.h> /* */
18			#include <fcntl.h> /* */
19			#include <errno.h> /* error simbol definitions */
20			#include <time.h> /* system time definitions */
21			#include <math.h> /* math library */
22
23			void readev_(long evnum, long systime, long len, unsigned short data, int error, int fd)
24			{
25			long header;
26			const char hdr = (char )&header;
27
28			*error = 0;
29
30			/* search the header */
31
32			error = read(fd,&header,sizeof(long)) == sizeof(long) ? 0 : -1;
33			while (!(*error) && (header != 0xaaaaaaaa)) {
34			header >>= 8;
35			error = read(fd,hdr+3,sizeof(char)) == sizeof(char) ? 0 : -1;
36			}
37			if (error) return; / file read error searching the header: exit */
38
39			/* read the event number */
40
41			error = read(fd,evnum,sizeof(long)) == sizeof(long) ? 0 : -1;
42			if (error) return; / error reading the event number: exit */
43			printf ("%d \n", evnum);
44			/* read the system time */
45
46			error = read(fd,systime,sizeof(long)) == sizeof(long) ? 0 : -1;
47			if (error) return; / error reading the system time: exit */
48			printf ("%d \n", systime);
49
50			/* read the event length */
51
52			error = read(fd,len,sizeof(long)) == sizeof(long) ? 0 : -1;
53			if (error) return; / error reading the event length: exit */
54			printf ("%d \n", len);
55
56			/* read the packet */
57
58			error = read(fd,data,sizeof(char)(len)) == sizeof(char)(len) ? 0 : -1;
59			if (error) return; / error reading the event length: exit */
60			swab(data,data,*len);
61			*error = 0;
62			}
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