sqlite3_mutex_methods class

An instance of this structure defines the low-level routines used to allocate and use mutexes. Usually, the default mutex implementations provided by SQLite are sufficient, however the application has the option of substituting a custom implementation for specialized deployments or systems for which SQLite does not provide a suitable implementation.

In this case, the application creates and populates an instance of this structure to pass to sqlite3_config() along with the SQLITE_CONFIG_MUTEX option. Additionally, an instance of this structure can be used as an output variable when querying the system for the current mutex implementation, using the SQLITE_CONFIG_GETMUTEX option. The xMutexInit method defined by this structure is invoked as part of system initialization by the sqlite3_initialize() function. The xMutexInit routine is called by SQLite exactly once for each effective call to sqlite3_initialize(). The xMutexEnd method defined by this structure is invoked as part of system shutdown by the sqlite3_shutdown() function. The implementation of this method is expected to release all outstanding resources obtained by the mutex methods implementation, especially those obtained by the xMutexInit method. The xMutexEnd() interface is invoked exactly once for each call to sqlite3_shutdown(). The remaining seven methods defined by this structure (xMutexAlloc, xMutexFree, xMutexEnter, xMutexTry, xMutexLeave, xMutexHeld and xMutexNotheld) implement the following interfaces (respectively):

Inheritance

• Object
• Struct
• sqlite3_mutex_methods

Implemented types

• NativeType

Available extensions

• StructAddress

Constructors

sqlite3_mutex_methods()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

xMutexAlloc ↔ PtrDefxMutexAlloc

getter/setter pair

xMutexEnd ↔ PtrDefxMutexInit

getter/setter pair

xMutexEnter ↔ PtrDefxMutexFree

getter/setter pair

xMutexFree ↔ PtrDefxMutexFree

getter/setter pair

xMutexHeld ↔ PtrDefxMutexTry

getter/setter pair

xMutexInit ↔ PtrDefxMutexInit

getter/setter pair

xMutexLeave ↔ PtrDefxMutexFree

getter/setter pair

xMutexNotheld ↔ PtrDefxMutexTry

getter/setter pair

xMutexTry ↔ PtrDefxMutexTry

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited