net_instaweb::NamedLockTester Class Reference

#include "named_lock_tester.h"

Public Member Functions
	NamedLockTester (ThreadSystem *thread_system)
bool	TryLock (NamedLock *lock)
bool	LockTimedWaitStealOld (int64 wait_ms, int64 steal_ms, NamedLock *lock)
bool	LockTimedWait (int64 wait_ms, NamedLock *lock)
bool	UnlockWithDelete (NamedLock *old_lock, NamedLock *new_lock)
bool	StealWithDelete (int64 steal_ms, NamedLock *old_lock, NamedLock *new_lock)
	As for UnlockWithDelete, but for a steal. Frees both locks. More...
void	DeleteLock ()
void	Quiesce ()
void	set_quiesce (Function *quiesce)

Detailed Description

The NamedLock class does not have any blocking operations in it, as they don't fit well with PageSpeed's asynchronous archicture and with plans to make an asynchronous lock manager. However, in the context of unit tests, it is convenient to assume a blocking or schedule-based lock manager, and check that the call completes.

Member Function Documentation

void net_instaweb::NamedLockTester::set_quiesce ( Function *  quiesce )

inline

Sets a function to be called after calling an asynchronous locking method, prior to testing acuisition status. Onwership of this function transfers to this class.

bool net_instaweb::NamedLockTester::StealWithDelete ( int64  steal_ms, NamedLock *  old_lock, NamedLock *  new_lock  )

inline

As for UnlockWithDelete, but for a steal. Frees both locks.

wait_ms

bool net_instaweb::NamedLockTester::UnlockWithDelete ( NamedLock *  old_lock, NamedLock *  new_lock  )

inline

Tests the specific case where the callback for new_lock deletes old_lock. The likely failure case is a SEGV, though you must verify a true return code or the test didn't run. Frees both locks.

wait_ms

< Long enough to ensure it doesn't timeout.

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

• pagespeed/kernel/base/named_lock_tester.h