Those simple one liners Post: 302793469

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The Lounge What is on Your Mind? Those simple one liners Post 302793469 by MadeInGermany on Friday 12th of April 2013 12:34:27 PM

04-12-2013

Registered User

Quote:

Originally Posted by Corona688

...

There's also some bad habits in trying to squeeze things down to the absolute mininum number of characters. I see this a lot in awk scripts -- using an unused variable instead of "" since it's one character shorter. That's baffling to read later.

Yep, it's already a bad habit to replace an unconditional {print} with 1.
Nerd's artistic license or what?
Professors please! And no nerds!

---------- Post updated at 11:34 AM ---------- Previous update was at 11:26 AM ----------

Quote:

Originally Posted by ahamed101

...

Does this happen to you? You write a 10 liner and "HE" comes in with a one liner and you will be like "what?". Can't agree if someone says it cause of experience not in this case at least. May be our brain misses something sometimes and thinks too complex?

--ahamed

Not really.
If s.o. "beats" me with a shorter and better readable solution, I am happy it can be improved. And hit the Thanks button.
That's another purpose of this forum, isn't it?

MadeInGermany

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LEARN ABOUT OSF1

simple_lock

simple_lock(9r) 														   simple_lock(9r)

NAME

       simple_lock - General: Asserts a simple lock

SYNOPSIS

       #include <kern/lock.h>

       void simple_lock(
	       simple_lock_t slock_ptr );

ARGUMENTS

       Specifies a pointer to a simple lock structure. You can declare this simple lock structure by using the decl_simple_lock_data routine.

DESCRIPTION

       The  simple_lock  routine asserts a lock with exclusive access for the resource associated with the specified slock structure pointer. This
       means that no other kernel thread can gain access to the locked resource until you call simple_unlock to release it. Because  simple  locks
       are spin locks, simple_lock does not return until the lock has been obtained.

NOTES

       You  must  call	simple_lock_init  (once  only)	prior  to  calling simple_lock to initialize the simple lock structure for the resource. A
       resource, from the kernel module's standpoint, is data that more than one kernel thread can manipulate.	You  can  store  the  resource	in
       global variables and in data structure members.

RETURN VALUES

       None

FILES

SEE ALSO

       Routines: decl_simple_lock_data(9r), simple_lock_init(9r), simple_lock_terminate(9r), simple_lock_try(9r), simple_unlock(9r)

       Data Structures: slock(9s)

																   simple_lock(9r)