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This article covers features introduced in SpiderMonkey 17

Set callback function to name each compartment.


JS_SetCompartmentNameCallback(JSRuntime *rt, JSCompartmentNameCallback callback);
Name Type Description
cx JSRuntime * The runtime to set the callback function.
callback JSCompartmentNameCallback Callback function which will be called to name each compartment (see below).

Callback function

typedef void
(* JSCompartmentNameCallback)(JSRuntime *rt, JSCompartment *compartment,
                              char *buf, size_t bufsize);
Name Type Description
cx JSRuntime * The runtime of the compartments.
compartmentCallback JSCompartment * The pointer to the compartment to be named.
buf char * The buffer to store the name of the compartment.
bufsize size_t The maximum size of the buffer.


JS_SetCompartmentNameCallback sets callback function which will be called to name the compartment. If the runtime has no JSCompartmentNameCallback, a compartment will be named "<unknown>"</unknown>.

JSCompartmentNameCallback will be called when visiting the compartment, and it should store the name of the compartment into buf with NULL terminated string.

See also

Document Tags and Contributors

Contributors to this page: kscarfone, arai
Last updated by: kscarfone,