Access a JSRuntime field for application-specific data.


void *
JS_GetRuntimePrivate(JSRuntime *rt);

JS_SetRuntimePrivate(JSRuntime *rt, void *data);
Name Type Description
rt JSRuntime * Any JS runtime.
data void * (in JS_SetRuntimePrivate) Pointer to application-defined data to be associated with the runtime rt.


Each JSRuntime has a field of type void * which the application may use for any purpose. It is especially useful for storing data which callbacks may then easily access. JS_GetRuntimePrivate gets the value of this field and JS_SetRuntimePrivate sets it. The field is initially NULL.

Memory management for this private data is the application's responsibility. The JavaScript engine itself never uses it.

See Also