Truxton message get depot offset

This tells you where in the depot file the file contents begin. This corresponds to the [Offset] column of the [Content] table.

Syntax

uint32_t truxton_message_get_depot_offset( uint64_t message_handle );

Parameters

message_handle

The handle to a message created by the truxton_message_create call.

Return value

The offset into the depot file where the file's contents begin.

Sample

void dump_offset( uint64_t message )
{
   uint64_t value = truxton_message_get_depot_offset( message );

   printf( "Offset is %" PRIu64 "\n", value );
}

The PRIu64 in the sample code above is a standard way of formatting a 64-bit unsigned integer in C. Over the years, different compilers on different operating systems used different format specifiers for things, these PRI macros, along with some tricky string concatenation the compilers perform for you, allow you to maintain a single code base without a bunch of macro magic.