SavedStacks::FrameState::FrameState(const FrameState &fs)
: principals(fs.principals),
name(fs.name),
location(fs.location)
{
if (principals)
JS_HoldPrincipals(principals);
}
SavedStacks::FrameState::FrameState(const FrameIter &iter)
: principals(iter.compartment()->principals),
name(iter.isNonEvalFunctionFrame() ? iter.functionDisplayAtom() : nullptr),
location()
{
if (principals)
JS_HoldPrincipals(principals);
}
void
SavedFrame::initFromLookup(Lookup &lookup)
{
JS_ASSERT(lookup.source);
JS_ASSERT(getReservedSlot(JSSLOT_SOURCE).isUndefined());
setReservedSlot(JSSLOT_SOURCE, StringValue(lookup.source));
setReservedSlot(JSSLOT_LINE, NumberValue(lookup.line));
setReservedSlot(JSSLOT_COLUMN, NumberValue(lookup.column));
setReservedSlot(JSSLOT_FUNCTIONDISPLAYNAME,
lookup.functionDisplayName
? StringValue(lookup.functionDisplayName)
: NullValue());
setReservedSlot(JSSLOT_PARENT, ObjectOrNullValue(lookup.parent));
setReservedSlot(JSSLOT_PRIVATE_PARENT, PrivateValue(lookup.parent));
JS_ASSERT(getReservedSlot(JSSLOT_PRINCIPALS).isUndefined());
if (lookup.principals)
JS_HoldPrincipals(lookup.principals);
setReservedSlot(JSSLOT_PRINCIPALS, PrivateValue(lookup.principals));
}
AutoDropPrincipals(JSRuntime *rt, JSPrincipals *principals)
: rt(rt), principals(principals)
{
JS_HoldPrincipals(principals);
}
/* static */ JSBool
nsJSPrincipals::Transcode(JSXDRState *xdr, JSPrincipals **jsprinp)
{
nsresult rv;
if (xdr->mode == JSXDR_ENCODE) {
nsIObjectOutputStream *stream =
reinterpret_cast<nsIObjectOutputStream*>(xdr->userdata);
// Flush xdr'ed data to the underlying object output stream.
uint32_t size;
char *data = (char*) ::JS_XDRMemGetData(xdr, &size);
rv = stream->Write32(size);
if (NS_SUCCEEDED(rv)) {
rv = stream->WriteBytes(data, size);
if (NS_SUCCEEDED(rv)) {
::JS_XDRMemResetData(xdr);
rv = stream->WriteObject(nsJSPrincipals::get(*jsprinp), true);
}
}
} else {
NS_ASSERTION(JS_XDRMemDataLeft(xdr) == 0, "XDR out of sync?!");
nsIObjectInputStream *stream =
reinterpret_cast<nsIObjectInputStream*>(xdr->userdata);
nsCOMPtr<nsIPrincipal> prin;
rv = stream->ReadObject(true, getter_AddRefs(prin));
if (NS_SUCCEEDED(rv)) {
PRUint32 size;
rv = stream->Read32(&size);
if (NS_SUCCEEDED(rv)) {
char *data = nsnull;
if (size != 0)
rv = stream->ReadBytes(size, &data);
if (NS_SUCCEEDED(rv)) {
char *olddata;
uint32_t oldsize;
// Any decode-mode JSXDRState whose userdata points to an
// nsIObjectInputStream instance must use nsMemory to Alloc
// and Free its data buffer. Swap the new buffer we just
// read for the old, exhausted data.
olddata = (char*) ::JS_XDRMemGetData(xdr, &oldsize);
nsMemory::Free(olddata);
::JS_XDRMemSetData(xdr, data, size);
*jsprinp = nsJSPrincipals::get(prin);
JS_HoldPrincipals(*jsprinp);
}
}
}
}
if (NS_FAILED(rv)) {
::JS_ReportError(xdr->cx, "can't %scode principals (failure code %x)",
(xdr->mode == JSXDR_ENCODE) ? "en" : "de",
(unsigned int) rv);
return JS_FALSE;
}
return JS_TRUE;
}
AutoDropPrincipals(JSContext* cx, JSPrincipals* principals)
: cx(cx), principals(principals) {
JS_HoldPrincipals(principals);
}