Subject:
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new lock_process() function library for IC
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 3 Mar 2000 18:57:47 GMT
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Original-From:
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Richard Drushel <drushel@apk[avoidspam].net>
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Viewed:
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726 times
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I have written some library code which allows user programs to
effectively hog_processor() for a user-specified time interval, instead of
the 256 msec allowed by hog_processor(). The new functions are:
void lock_process(float seconds) ;locks out all other running
;processes for time seconds.
;time can range from .001-4294967
;seconds. (The counter is a 32-bit
;msec counter.)
void unlock_process() ;unlocks the lock_process() lock and
;swaps to the next process, allowing
;multitasking to resume.
lock_process() installs a timer tick daemon which manages the counter and
prevents the current process from being swapped out, based upon the state of
a global enable flag. The daemon is an .icb file.
lock_process() requires the hog_processor() function from lib-???.c and
the int2uf() function from my math.c library. lock_process() works on both
Handy Boards and 6.270 boards.
The files are available via anonymous ftp at:
ftp://junior.apk.net/pub/users/drushel/lock_process/lock_process.c
ftp://junior.apk.net/pub/users/drushel/lock_process/lock_process.icb
ftp://junior.apk.net/pub/users/drushel/lock_process/lock_process.lis
ftp://junior.apk.net/pub/users/drushel/lock_process/lock_process.asm
ftp://junior.apk.net/pub/users/drushel/lock_process/math.c
Please let me know if you find any bugs or have any comments.
Fred, feel free to add these to the appropriate area of the Handy
Board website.
*Rich*
--
Richard F. Drushel, Ph.D. | "Aplysia californica" is your taxonomic
Department of Biology, Slug Division | nomenclature. / A slug, by any other
Case Western Reserve University | name, is still a slug by nature.
Cleveland, Ohio 44106-7080 U.S.A. | -- apologies to Data, "Ode to Spot"
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