NAME
Lock -- Lock a directory or file
SYNOPSIS
lock = Lock( name, accessMode )
D0 D1 D2
BPTR Lock(STRPTR, LONG)FUNCTION
A filing system lock on the file or directory 'name' is returned if possible.
If the accessMode is ACCESS_READ, the lock is a shared read lock; if the accessMode is ACCESS_WRITE then it is an exclusive write lock. Do not use random values for mode.
If Lock() fails (that is, if it cannot obtain a filing system lock on the file or directory) it returns a zero.
Tricky assumptions about the internal format of a lock are unwise, as are any attempts to use the fl_Link or fl_Access fields.
INPUTS
name - pointer to a null-terminated string accessMode - integer
RESULTS
lock - BCPL pointer to a lock
SEE ALSO