xref: /freebsd/share/man/man9/uidinfo.9 (revision f16b3c0de48d0b845357e7cca843f645bc3117e3)

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.Dd July 10, 2001
.Dt UIDINFO 9
.Os
.Sh NAME
.Nm uidinfo ,
.Nm uihashinit ,
.Nm uifind ,
.Nm uihold ,
.Nm uifree
.Nd "functions for managing UID information"
.Sh SYNOPSIS
.In sys/param.h
.In sys/proc.h
.In sys/resourcevar.h
.Ft void
.Fn uihashinit void
.Ft "struct uidinfo *"
.Fn uifind "uid_t uid"
.Ft void
.Fn uihold "struct uidinfo *uip"
.Ft void
.Fn uifree "struct uidinfo *uip"
.Sh DESCRIPTION
The
.Nm
family of functions
is used to manage
.Vt uidinfo
structures.
The
.Vt uidinfo
structure maintains the process count and socket buffer space usage
for a given UID.
.Pp
The
.Fn uihashinit
function initializes the
.Vt uidinfo
hash table.
This function should only be called during system initialization.
.Pp
The
.Fn uifind
function looks up and returns the
.Vt uidinfo
structure for the
.Fa uid .
If the
.Vt uidinfo
is not found, a new structure is allocated.
.Pp
The
.Fn uihold
function increases the reference count on the
.Vt uidinfo
structure.
.Pp
The
.Fn uifree
function decreases the reference count on the
.Vt uidinfo
structure.
If the count reaches 0, the storage for the structure is freed.
.Sh RETURN VALUES
The functions that return values all return a pointer to a
.Vt uidinfo
structure.
.Sh AUTHORS
This man page was written by
.An Chad David Aq davidc@acns.ab.ca .