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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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merge_fonts(3alleg4)						  Allegro manual					      merge_fonts(3alleg4)

NAME
merge_fonts - Merges two fonts into one font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *merge_fonts(FONT *f1, FONT *f2) DESCRIPTION
This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can promote a mono- chrome bitmapped font to a color font and merge those. Example: FONT *myfont; FONT *myfancy_font; FONT *lower_range; FONT *upper_range; FONT *capitals; FONT *combined_font; FONT *tempfont; ... /* Create a font that contains the capitals from */ /* the fancy font but other characters from myfont */ lower_range = extract_font_range(myfont, -1, 'A'-1); upper_range = extract_font_range(myfont, 'Z'+1, -1); capitals = extract_font_range(myfancy_font, 'A', 'Z'); tempfont = merge_fonts(lower_range, capitals); combined_font = merge_fonts(tempfont, upper_range); /* Clean up temporary fonts */ destroy_font(lower_range); destroy_font(upper_range); destroy_font(capitals); destroy_font(tempfont); 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
extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 merge_fonts(3alleg4)
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