frameCount/src/frameCount.c

#define _FILE_OFFSET_BITS 64

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "frameCount.h"


int frameCount( char* in_name, int outTime ){
  
  FILE *in_file;
  int nFrames = 0;
  double time;
  int i, j, k;
  int lineNum = 0;
  char readBuffer[2000];
  char* foo;
  

  in_file = fopen( in_name, "r" );
  if( in_file == NULL ){
    printf( "Error opening \"%s\"\n", in_name );
    exit(8);
  }
  
  fgets( readBuffer, sizeof( readBuffer ), in_file );
  lineNum++;
  if( feof( in_file ) ){
    printf( "File ended unexpectedly at line %d\n", lineNum );
    exit(8);
  }
  
  if(outTime) printf("# frame Num\tTime\n" );

  while( !feof( in_file ) ){
    
    i = atoi(readBuffer);

    fgets( readBuffer, sizeof( readBuffer ), in_file );
    lineNum++;    
    if( feof( in_file ) ){
      printf( "File ended unexpectedly at line %d, in frame%d\n",
              lineNum, nFrames+1 );
      exit(8);
    }

    if(outTime){
      foo = strtok( readBuffer, " ,;\t" );
      time = atof( foo );
    }
    
    for(j=0; j<i; j++){
      
      fgets( readBuffer, sizeof( readBuffer ), in_file );
      lineNum++;    
      if( feof( in_file ) ){
        printf( "File ended unexpectedly at line %d,"
                " with atom %d, in frame %d\n", lineNum, j, nFrames+1 );
        exit(8);
      }
      
    }
    
    nFrames++;
    if( outTime ){
      printf("%d\t%f\n", nFrames, time );
    }
    
    fgets( readBuffer, sizeof( readBuffer ), in_file );
    lineNum++;
  }
  
  fclose( in_file );
  
  return nFrames;
}
Revision:	1086
Committed:	Fri Mar 5 17:21:20 2004 UTC (21 years, 8 months ago) by mmeineke
Content type:	text/plain
File size:	1510 byte(s)
Log Message:	added support for files larger than 2 Gb
#	User	Rev	Content
1	mmeineke	1086	#define _FILE_OFFSET_BITS 64
2
3	mmeineke	34	#include <stdlib.h>
4			#include <stdio.h>
5	mmeineke	84	#include <string.h>
6	mmeineke	34
7	mmeineke	36	#include "frameCount.h"
8	mmeineke	34
9	mmeineke	36
10	mmeineke	84	int frameCount( char* in_name, int outTime ){
11	mmeineke	37
12			FILE *in_file;
13			int nFrames = 0;
14	mmeineke	84	double time;
15	mmeineke	37	int i, j, k;
16			int lineNum = 0;
17			char readBuffer[2000];
18	mmeineke	84	char* foo;
19	mmeineke	37
20	mmeineke	84
21	mmeineke	37	in_file = fopen( in_name, "r" );
22			if( in_file == NULL ){
23			printf( "Error opening \"%s\"\n", in_name );
24			exit(8);
25			}
26
27			fgets( readBuffer, sizeof( readBuffer ), in_file );
28			lineNum++;
29			if( feof( in_file ) ){
30			printf( "File ended unexpectedly at line %d\n", lineNum );
31			exit(8);
32			}
33
34	mmeineke	84	if(outTime) printf("# frame Num\tTime\n" );
35
36	mmeineke	37	while( !feof( in_file ) ){
37
38			i = atoi(readBuffer);
39	mmeineke	36
40	mmeineke	37	fgets( readBuffer, sizeof( readBuffer ), in_file );
41			lineNum++;
42			if( feof( in_file ) ){
43			printf( "File ended unexpectedly at line %d, in frame%d\n",
44			lineNum, nFrames+1 );
45			exit(8);
46			}
47	mmeineke	34
48	mmeineke	84	if(outTime){
49			foo = strtok( readBuffer, " ,;\t" );
50			time = atof( foo );
51			}
52	mmeineke	37
53			for(j=0; j<i; j++){
54
55			fgets( readBuffer, sizeof( readBuffer ), in_file );
56			lineNum++;
57			if( feof( in_file ) ){
58			printf( "File ended unexpectedly at line %d,"
59			" with atom %d, in frame %d\n", lineNum, j, nFrames+1 );
60			exit(8);
61			}
62
63			}
64
65			nFrames++;
66	mmeineke	84	if( outTime ){
67			printf("%d\t%f\n", nFrames, time );
68			}
69	mmeineke	37
70			fgets( readBuffer, sizeof( readBuffer ), in_file );
71			lineNum++;
72			}
73
74			fclose( in_file );
75
76			return nFrames;
77	mmeineke	34	}