readMetaRoot.c File Reference

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>

Go to the source code of this file.

Functions
unsigned int	CountFreeBits (const int byte)
unsigned int	CountnFree (char m_BitMap)
int	main (int argc, char *argv[])

---

Function Documentation

unsigned int CountFreeBits

(

const int

byte

)

Definition at line 24 of file readMetaRoot.c.

{
    unsigned int count = 0;
    int i, mask = 0x80;
    for( i = 0; i < 8; i++ )
    {
        if( ( mask & byte ) == mask )
            count++;
        mask = mask >> 1;
    }
    return count;
}

unsigned int CountnFree

(

char

m_BitMap

)

Definition at line 37 of file readMetaRoot.c.

{
    // Count number of free bits in bitmap
    unsigned int count;

    count = CountFreeBits( m_BitMap );
    return count;
}

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 46 of file readMetaRoot.c.

{
    int   file, i;
    char  c;
    unsigned int sum;

    for( i = 1; i < argc; i++ )
    {
        file = open( argv[ i ], O_RDONLY );
        if( file > 0 )
        {
            sum  = 0;
            while( read( file, (char *)&c, 1 ) == 1 )
            {
                sum += CountnFree( c );
            }
            close( file );
            fprintf( stderr, "sum = %u\n", sum );
        }
        else
            fprintf( stderr, "Nao consegui abrir o arquivo\n" );
    }

    return( 0 );
}