michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim: set ts=8 sts=4 et sw=4 tw=99: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsAutoPtr.h"
michael@0: 
michael@0: #include "jsapi.h"
michael@0: #include "js/OldDebugAPI.h"
michael@0: 
michael@0: #include "nsJSPrincipals.h"
michael@0: 
michael@0: #include "mozilla/scache/StartupCache.h"
michael@0: 
michael@0: using namespace JS;
michael@0: using namespace mozilla::scache;
michael@0: 
michael@0: // We only serialize scripts with system principals. So we don't serialize the
michael@0: // principals when writing a script. Instead, when reading it back, we set the
michael@0: // principals to the system principals.
michael@0: nsresult
michael@0: ReadCachedScript(StartupCache* cache, nsACString &uri, JSContext *cx,
michael@0:                  nsIPrincipal *systemPrincipal, MutableHandleScript scriptp)
michael@0: {
michael@0:     nsAutoArrayPtr<char> buf;
michael@0:     uint32_t len;
michael@0:     nsresult rv = cache->GetBuffer(PromiseFlatCString(uri).get(),
michael@0:                                    getter_Transfers(buf), &len);
michael@0:     if (NS_FAILED(rv))
michael@0:         return rv; // don't warn since NOT_AVAILABLE is an ok error
michael@0: 
michael@0:     scriptp.set(JS_DecodeScript(cx, buf, len, nullptr));
michael@0:     if (!scriptp)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: ReadCachedFunction(StartupCache* cache, nsACString &uri, JSContext *cx,
michael@0:                    nsIPrincipal *systemPrincipal, JSFunction **functionp)
michael@0: {
michael@0:     return NS_ERROR_FAILURE;
michael@0: /*  This doesn't actually work ...
michael@0:     nsAutoArrayPtr<char> buf;
michael@0:     uint32_t len;
michael@0:     nsresult rv = cache->GetBuffer(PromiseFlatCString(uri).get(),
michael@0:                                    getter_Transfers(buf), &len);
michael@0:     if (NS_FAILED(rv))
michael@0:         return rv; // don't warn since NOT_AVAILABLE is an ok error
michael@0: 
michael@0:     JSObject *obj = JS_DecodeInterpretedFunction(cx, buf, len, nsJSPrincipals::get(systemPrincipal), nullptr);
michael@0:     if (!obj)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0:     JSFunction* function = JS_ValueToFunction(cx, OBJECT_TO_JSVAL(obj));
michael@0:     *functionp = function;
michael@0:     return NS_OK;*/
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: WriteCachedScript(StartupCache* cache, nsACString &uri, JSContext *cx,
michael@0:                   nsIPrincipal *systemPrincipal, HandleScript script)
michael@0: {
michael@0:     MOZ_ASSERT(JS_GetScriptPrincipals(script) == nsJSPrincipals::get(systemPrincipal));
michael@0:     MOZ_ASSERT(JS_GetScriptOriginPrincipals(script) == nsJSPrincipals::get(systemPrincipal));
michael@0: 
michael@0:     uint32_t size;
michael@0:     void *data = JS_EncodeScript(cx, script, &size);
michael@0:     if (!data)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:     MOZ_ASSERT(size);
michael@0:     nsresult rv = cache->PutBuffer(PromiseFlatCString(uri).get(), static_cast<char *>(data), size);
michael@0:     js_free(data);
michael@0:     return rv;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: WriteCachedFunction(StartupCache* cache, nsACString &uri, JSContext *cx,
michael@0:                     nsIPrincipal *systemPrincipal, JSFunction *function)
michael@0: {
michael@0:     return NS_ERROR_FAILURE;
michael@0: /* This doesn't actually work ...
michael@0:     uint32_t size;
michael@0:     void *data =
michael@0:       JS_EncodeInterpretedFunction(cx, JS_GetFunctionObject(function), &size);
michael@0:     if (!data)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:     MOZ_ASSERT(size);
michael@0:     nsresult rv = cache->PutBuffer(PromiseFlatCString(uri).get(), static_cast<char *>(data), size);
michael@0:     js_free(data);
michael@0:     return rv;*/
michael@0: }