TPLOGDUMPDIFF

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
EXAMPLE
BUGS
SEE ALSO
COPYING

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NAME

tplogdumpdiff − print the hex−dump differences of two buffers to log file

SYNOPSIS

#include <ndebug.h>

void tplogdumpdiff(int lev, char *comment, void *ptr1, void *ptr2, int len);

or

#define TP_DUMP_DIFF(lev,comment,ptr,ptr2,len)

Link with −lnstd −lpthread −lrt −lm

DESCRIPTION

Function compares two memory areas by given pointers ptr and ptr2. The hex dump is generate and output is written to current logger (either process based, thread based or request based). The tplogdumpdiff() basically is wrapper for TP_LOGDUMP_DIFF. For C/C++ programs it is recommended to use macro version. lev is debug level from 1 (log_always) .. 5 (log_debug). Comment is title line of the dump. ptr and ptr2 are pointer to memory blocks to compare. len is number of bytes in each array to compare.

Log levels are following (from ndebug.h):

• log_always 1

• log_error 2

• log_warn 3

• log_info 4

• log_debug 5

RETURN VALUE

N/A

ERRORS

N/A

EXAMPLE

Code dumpdifftest.c

#include <ndebug.h>

int main (int argc, char **argv)
{
char arr1[32];
char arr2[32];
int i;

for (i=0; i<sizeof(arr1); i++)
{
arr1[i]=(char)(65+i);
arr2[i]=(char)(66+i);
}

tplogdumpdiff(log_debug, "Compare two arrays", arr1, arr2, sizeof(arr1));

TP_DUMP_DIFF(5, "Compare two arrays (TP_DUMP version)", arr1, arr2, sizeof(arr1));

return 0;
}

Sample run:

$ cc dumpdifftest.c −lnstd −lpthread −lrt −lm −I /include
$ ./a.out
t:USER:5:10865:000:20160928:095506583:/tplog.c:0437:Compare two arrays
< 0000 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 ABCDEFGHIJKLMNOP
> 0000 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 BCDEFGHIJKLMNOPQ
< 0010 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 QRSTUVWXYZ[\]^_’
> 0010 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 RSTUVWXYZ[\]^_’a
t:USER:5:10865:000:20160928:095506583:mpdiff.c:0017:Compare two arrays (TP_DUMP version)
< 0000 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 ABCDEFGHIJKLMNOP
> 0000 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 BCDEFGHIJKLMNOPQ
< 0010 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 QRSTUVWXYZ[\]^_’
> 0010 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 RSTUVWXYZ[\]^_’a

BUGS

Report bugs to support@mavimax.com

SEE ALSO

tplogdump(3) tplog(3) tplogprintubf(3) tplogconfig(3) tplogsetreqfile_direct(3) tplogsetreqfile(3) ex_devguide(guides)

COPYING

© Mavimax, Ltd

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