msgsize(9F) Kernel Functions for Drivers msgsize(9F)
NAME
msgsize - Return the total number of bytes in a message
SYNOPSIS
#include <sys/stream.h>
#include <sys/strsun.h>
size_t msgsize(mblk_t *mp);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
PARAMETERS
mp Message to be evaluated.
DESCRIPTION
The msgsize() function counts the number of bytes in a message, regardless of the data type of the underlying data blocks.
RETURN VALUES
Number of bytes in the message.
CONTEXT
This function can be called from user, kernel or interrupt context.
SEE ALSO
msgdsize(9F)
STREAMS Programming Guide
SunOS 5.10 9 June 2004 msgsize(9F)
