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Bug 1026: Protect callback of elinks.load_uri from GC

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This commit is contained in:
Kalle Olavi Niemitalo 2008-07-12 01:37:51 +03:00 committed by Kalle Olavi Niemitalo
parent b2c387f1f4
commit 079b97d21b
2 changed files with 14 additions and 1 deletions
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3
NEWS
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@ -16,6 +16,9 @@ generally also includes the bug fixes made in ELinks 0.11.4.GIT.
Bugs that should be removed from NEWS before the 0.12.0 release:
* major bug 1026 in user SMJS: Protect the callback of elinks.load_uri
from the garbage collector. The elinks.load_uri method was added in
ELinks 0.12pre1.
* bug 955: Reset buttons no longer run FORM/@onsubmit, and
``harmless'' buttons no longer submit the form. ELinks 0.12pre1
was the first release that had these bugs.

12
src/scripting/smjs/load_uri.c
View File

@ -20,7 +20,9 @@ struct smjs_load_uri_hop {
/* SpiderMonkey versions earlier than 1.8 cannot properly call
* a closure if given just a JSFunction pointer. They need a
* jsval that points to the corresponding JSObject. */
* jsval that points to the corresponding JSObject. Besides,
* JS_AddNamedRoot is not documented to support JSFunction
* pointers. */
jsval callback;
};
@ -54,6 +56,7 @@ smjs_loading_callback(struct download *download, void *data)
end:
if (download->cached)
object_unlock(download->cached);
JS_RemoveRoot(smjs_ctx, &hop->callback);
mem_free(download->data);
mem_free(download);
@ -93,6 +96,13 @@ smjs_load_uri(JSContext *ctx, JSObject *obj, uintN argc, jsval *argv,
hop->callback = argv[1];
hop->ses = smjs_ses;
if (!JS_AddNamedRoot(smjs_ctx, &hop->callback,
"smjs_load_uri_hop.callback")) {
mem_free(hop);
mem_free(download);
done_uri(uri);
return JS_FALSE;
}
download->data = hop;
download->callback = (download_callback_T *) smjs_loading_callback;