Gda.Lockable

Implementations:

Gda.Connection, Gda.Holder, Gda.SqlParser

Methods

	lock ()
	trylock ()
	unlock ()

Virtual Methods

	do_i_lock ()
	do_i_trylock ()
	do_i_unlock ()

Properties

None

Signals

None

Fields

None

Class Details

class Gda.Lockable

Bases:

GObject.GInterface

Structure:

Gda.LockableIface

lock()

Locks self. If it is already locked by another thread, the current thread will block until it is unlocked by the other thread.

This function can be used even if g_thread_init() has not yet been called, and, in that case, will do nothing.

Note: unlike GLib.Mutex.lock(), this method recursive, which means a thread can lock self several times (and has to unlock it as many times to actually unlock it).

trylock()

Returns:

True if the object has successfully been locked.

Return type:

bool

Tries to lock self. If it is already locked by another thread, then it immediately returns False, otherwise it locks self.

This function can be used even if g_thread_init() has not yet been called, and, in that case, will do nothing.

Note: unlike GLib.Mutex.lock(), this method recursive, which means a thread can lock self several times (and has to unlock it as many times to actually unlock it).

unlock()

Unlocks self. This method should not be called if the current does not already holds a lock on self (having used Gda.Lockable.lock() or Gda.Lockable.trylock()).

This function can be used even if g_thread_init() has not yet been called, and, in that case, will do nothing.

do_i_lock() virtual

do_i_trylock() virtual

Return type:

bool

do_i_unlock() virtual