lvid_t Struct Reference
[Identifiers]

Collaboration diagram for lvid_t:

[legend]List of all members.

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Detailed Description

long volume ID. See Identifiers.

A long, almost-unique identifier for a volume, generated from a clock and a network address. Written to a volume's header. This is the only persistent identifier for a volume, and it is used to be sure that one doesn't doubly-mount a volume via different paths. Thus, in certain sm methods, the long volume ID is used to identify a volume, e.g., in destroy_vol, get_volume_quota.

Examples:

create_rec.cpp, log_exceed.cpp, sort_stream.cpp, and vtable_example.cpp.

Definition at line 80 of file lid_t.h.

Public Member Functions
	lvid_t ()
	lvid_t (uint4_t hi, uint4_t lo)
bool	operator== (const lvid_t &s) const
bool	operator!= (const lvid_t &s) const
Public Attributes
uint4_t	high
uint4_t	low
Static Public Attributes
static const lvid_t	null
Friends
ostream &	operator<< (ostream &, const lvid_t &)
istream &	operator>> (istream &, lvid_t &)

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The documentation for this struct was generated from the following files:

• src/common/lid_t.h
• src/common/lid_t.cpp

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