graphlab::graph_lock< GraphType > Class Template Reference

#include <graph_lock.hpp>

List of all members.

Classes
struct	partiallock_cont_params
struct	scopelock_cont_params
Public Member Functions
	graph_lock (distributed_control &dc, GraphType &dgraph, bool synchronize_data=false)
void	scope_request (vertex_id_t globalvid, boost::function< void(vertex_id_t)> handler, scope_range::scope_range_enum scopetype)
void	scope_unlock (vertex_id_t globalvid, scope_range::scope_range_enum scopetype)
template<typename GraphType >
struct graphlab::graph_lock::partiallock_cont_params	__attribute__ ((aligned(8)))

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Detailed Description

template<typename GraphType>
class graphlab::graph_lock< GraphType >

The locking implementation is basically two families of continuations. The first family is called the scopelock_continuation This family completes the lock of a scope. It iterates over the owners of the replicas of the vertex, and issue remote calls to acquire locks on them.

The second family is called partiallock_continuation It completes the lock on local vertices. It iterates over the owned vertices within the scope of the vertex, acquiring locks.

Note:

This class is templatized over graph type, but really it requires relatively deep introspection into the graph and will only work with the distributed_graph implementation right now. This could be generalized.

Definition at line 56 of file graph_lock.hpp.

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Member Function Documentation

template<typename GraphType>

template<typename GraphType >

struct graphlab::graph_lock::partiallock_cont_params graphlab::graph_lock< GraphType >::__attribute__

(

(aligned(8))

)

The parameters passed on to the partial lock continuation

template<typename GraphType>

void graphlab::graph_lock< GraphType >::scope_request	(	vertex_id_t	globalvid,
		boost::function< void(vertex_id_t)>	handler,
		scope_range::scope_range_enum	scopetype
	)			[inline]

Requests a lock on the scope surrounding globalvid. This globalvid must be owned by the current machine. When lock is complete the handler is called.

Definition at line 69 of file graph_lock.hpp.

template<typename GraphType>

void graphlab::graph_lock< GraphType >::scope_unlock	(	vertex_id_t	globalvid,
		scope_range::scope_range_enum	scopetype
	)			[inline]

Isues an unlock on the scope surrounding globalvid. A lock on this scope MUST have been acquired before or very bad things will happen

Definition at line 101 of file graph_lock.hpp.

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The documentation for this class was generated from the following file:

• src/graphlab/distributed2/graph/graph_lock.hpp