Copyright (C) 2001 Chad David <email@example.com>. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice(s), this list of conditions and the following disclaimer as the first lines of this file unmodified other than the possible addition of one or more copyright notices. 2. Redistributions in binary for...
NAMEBUF_TIMELOCK - locks a buffer
SYNOPSISIn sys/param.h In sys/systm.h In sys/uio.h In sys/bio.h In sys/buf.h Ft int Fn BUF_TIMELOCK struct buf *bp int locktype char *wmesg int catch int timo
DESCRIPTIONThe Fn BUF_TIMELOCK function locks the given buffer, and limits the amount of time it will sleep to Fa timo and OR's Fa catch into the sleep's priority. Fa wmesg is the wmesg used in the sleep.
Its arguments are:
- Fa bp
- The buffer to lock.
- Fa locktype
- Flags controlling the type of lock. See lockmgr(9) for details.
- Fa wmesg
- The wmesg used in any sleeps while acquiring the lock.
- Fa catch
- Priority OR'd into the sleep's priority.
- Fa timo
- The timeout for any sleeps encountered during the lock.