// Get a function chunk attribute
// ea - any address in the chunk
// attr - one of: FUNCATTR_START, FUNCATTR_END
// FUNCATTR_OWNER, FUNCATTR_REFQTY
// returns: desired attribute or -1
long get_fchunk_attr(long ea, long attr);
// Set a function chunk attribute
// ea - any address in the chunk
// attr - nothing defined yet
// value - desired bg color (RGB)
// returns: 0 if failed, 1 if success
success set_fchunk_attr(long ea, long attr, long value);
// Get a function chunk referer
// ea - any address in the chunk
// idx - referer index (0..get_fchunk_attr(FUNCATTR_REFQTY))
// returns: referer address or BADADDR
long get_fchunk_referer(long ea, long idx);
// Get next function chunk
// ea - any address
// returns: the starting address of the next
// function chunk or BADADDR
// This function enumerates all chunks of all functions in the database
long get_next_fchunk(long ea);
// Get previous function chunk
// ea - any address
// returns: the starting address of the previous
// function chunk or BADADDR
// This function enumerates all chunks of all functions in the database
long get_prev_fchunk(long ea);
// Append a function chunk to the function
// funcea - any address in the function
// ea1, ea2 - boundaries of a function tail to add.
// If a chunk exists at the specified addresses,
// it must have exactly the specified boundaries
// returns: 0 if failed, 1 if success
success append_func_tail(long funcea, long ea1, long ea2);
// Remove a function chunk from the function
// funcea - any address in the function
// ea1 - any address in the function chunk to remove
// returns: 0 if failed, 1 if success
success remove_fchunk(long funcea, long tailea);
// Change the function chunk owner
// tailea - any address in the function chunk
// funcea - the starting address of the new owner
// returns: 0 if failed, 1 if success
// The new owner must already have the chunk appended before the call
success set_tail_owner(long tailea, long funcea);
// Get the first function chunk of the specified function
// funcea - any address in the function
// returns: the function entry point or BADADDR
// This function returns the first (main) chunk of the specified function
long first_func_chunk(long funcea);
// Get the next function chunk of the specified function
// arguments: funcea - any address in the function
// tailea - any address in the current chunk
// returns: the starting address of the next
// function chunk or BADADDR
// This function returns the next chunk of the specified function
long next_func_chunk(long funcea, long tailea);