04-11-2011
The problem is that you can not initialize members in a structure definition.
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LEARN ABOUT OSF1
lock_try_write
lock_try_write(9r) lock_try_write(9r)
NAME
lock_try_write - General: Tries to assert a complex lock with write access
SYNOPSIS
#include <kern/lock.h>
boolean_t lock_try_write(
lock_t lock_structptr );
ARGUMENTS
Specifies a pointer to the complex lock structure, lock. This is the lock structure associated with the resource on which you want to try
to assert write access. The lock structure is an opaque data structure; that is, its associated members are referenced and manipulated by
the Tru64 UNIX operating system and not by the user of the complex lock mechanism.
DESCRIPTION
The lock_try_write routine tries to assert a complex lock (without blocking) with write access for the resource associated with the speci-
fied lock structure pointer. To release a complex lock with write access successfully asserted by lock_try_write, call the lock_done rou-
tine.
NOTES
You must call lock_init (once only) prior to calling lock_try_write to initialize the lock structure pointer 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 vari-
ables and in data structure members.
RETURN VALUES
The lock_try_write routine returns one of the following values: The attempt to acquire the write complex lock was successful. The attempt
to acquire the write complex lock was unsuccessful.
FILES
SEE ALSO
Routines: lock_done(9r), lock_terminate(9r), lock_try_read(9r), lock_write(9r)
Data Structures: lock(9s)
lock_try_write(9r)