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Full Discussion: TCP MSS Issue
Special Forums IP Networking TCP MSS Issue Post 302882525 by DGPickett on Tuesday 7th of January 2014 03:15:55 PM
Old 01-07-2014
MSS is related to MTU. I wrote it up very nicely years ago, so look here (come bits are AIX, but much is general):
http://davidgpickett.home.comcast.net/~davidgpickett/tips/
especially:
http://davidgpickett.home.comcast.net/~davidgpickett/tips/tcp_tuning.970513.txt

More modern TCP packets have extended headers, so you get less than 1460 payload from 1500 MTU. The extended header can do buffers over 65K and swap timestamps for tuning. Sometimes a TCP header carries an MTU setting, at least at first.
 

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extract_font_range(3alleg4)					  Allegro manual				       extract_font_range(3alleg4)

NAME
extract_font_range - Extracts a range of characters from a font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *extract_font_range(FONT *f, int begin, int end) DESCRIPTION
This function extracts a character range from a font and returns a new font that contains only the range of characters selected by this function. You can pass -1 for either the lower or upper bound if you want to select all characters from the start or to the end of the font. Example: FONT *myfont; FONT *capitals; FONT *fontcopy; ... /* Create a font of only capital letters */ capitals = extract_font_range(myfont, 'A', 'Z'); /* Create a copy of the font */ fontcopy = extract_font_range(myfont, -1, -1); ... destroy_font(capitals); destroy_font(fontcopy); RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it to avoid memory leaks. SEE ALSO
get_font_range_begin(3alleg4), get_font_range_end(3alleg4), merge_fonts(3alleg4), transpose_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 extract_font_range(3alleg4)
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