void MainResourceLoader::continueAfterNavigationPolicy(const ResourceRequest& request, bool shouldContinue)
{
if (!shouldContinue)
stopLoadingForPolicyChange();
else if (m_substituteData.isValid()) {
// A redirect resulted in loading substitute data.
ASSERT(documentLoader()->timing()->redirectCount());
clearResource();
handleSubstituteDataLoadSoon(request);
}
deref(); // balances ref in willSendRequest
}
void
sprint_ivector(LispObj o)
{
LispObj header = header_of(o);
unsigned
elements = header_element_count(header),
subtag = header_subtag(header);
switch(subtag) {
case subtag_simple_base_string:
add_char('"');
add_lisp_base_string(o);
add_char('"');
return;
case subtag_bignum:
if (elements == 1) {
sprint_signed_decimal((signed_natural)(deref(o, 1)));
return;
}
if ((elements == 2) && (deref(o, 2) == 0)) {
sprint_unsigned_decimal(deref(o, 1));
return;
}
break;
case subtag_double_float:
break;
case subtag_macptr:
add_c_string("#<MACPTR ");
sprint_unsigned_hex(deref(o,1));
add_c_string(">");
break;
default:
sprint_random_vector(o, subtag, elements);
}
}
void QualifiedName::externalDeref()
{
if(m_impl)
{
m_impl->m_prefix.externalDeref();
m_impl->m_localName.externalDeref();
m_impl->m_namespace.externalDeref();
}
//m_impl->deref();
//m_impl = NULL;
deref();
m_impl=NULL;
}
// private methods
void SocketStreamHandle::processMessageOnMainThread(StreamMessage msg)
{
switch (msg) {
case DidOpen:
ASSERT(m_state == Open);
if (m_client)
m_client->didOpenSocketStream(this);
break;
case DidFail:
ASSERT(m_curl_code != CURLE_OK);
LOG_CONNECT(Network, "SocketStreamHandleCurl: DidFail, error %d (%s), curl error buffer: %s [%p][thread=%d]\n", m_curl_code, curl_easy_strerror(m_curl_code), m_curl_error_buffer, this, GetCurrentThreadId());
if (m_client)
m_client->didFailSocketStream(this, SocketStreamError(m_curl_code, m_url.isEmpty() ? String() : m_url.string()));
break;
case DidReceiveData:
didReceiveData();
break;
case DidSelectForWrite: {
deref(); // this balances the ref() when spinning up the send wait thread.
// LOG(Network, "SocketStreamHandleCurl: DidSelectForWrite [%p][thread=%d]\n", this, GetCurrentThreadId());
if (!m_platformCloseRequested) {
if (m_curl_code == CURLE_OK) {
sendPendingData();
}
else if (m_client) {
m_client->didFailSocketStream(this, SocketStreamError(m_curl_code, m_url.isEmpty() ? String() : m_url.string()));
}
}
} break;
case DidClose:
disconnect();
break;
case DidStopRecvLoop:
deref(); // this balances the ref() in the constructor.
break;
}
deref();
}
static bool
read_base(SerdReader* reader)
{
// `@' is already eaten in read_directive
eat_string(reader, "base", 4);
TRY_RET(read_ws_plus(reader));
Ref uri;
TRY_RET(uri = read_IRIREF(reader));
if (reader->base_sink) {
reader->base_sink(reader->handle, deref(reader, uri));
}
pop_node(reader, uri);
return true;
}
void OfflineAudioDestinationNode::offlineRender()
{
ASSERT(!isMainThread());
ASSERT(m_renderBus.get());
if (!m_renderBus.get())
return;
bool isAudioContextInitialized = context().isInitialized();
ASSERT(isAudioContextInitialized);
if (!isAudioContextInitialized)
return;
bool channelsMatch = m_renderBus->numberOfChannels() == m_renderTarget->numberOfChannels();
ASSERT(channelsMatch);
if (!channelsMatch)
return;
bool isRenderBusAllocated = m_renderBus->length() >= renderQuantumSize;
ASSERT(isRenderBusAllocated);
if (!isRenderBusAllocated)
return;
// Break up the render target into smaller "render quantize" sized pieces.
// Render until we're finished.
size_t framesToProcess = m_renderTarget->length();
unsigned numberOfChannels = m_renderTarget->numberOfChannels();
unsigned n = 0;
while (framesToProcess > 0) {
// Render one render quantum.
render(0, m_renderBus.get(), renderQuantumSize);
size_t framesAvailableToCopy = std::min(framesToProcess, renderQuantumSize);
for (unsigned channelIndex = 0; channelIndex < numberOfChannels; ++channelIndex) {
const float* source = m_renderBus->channel(channelIndex)->data();
float* destination = m_renderTarget->getChannelData(channelIndex)->data();
memcpy(destination + n, source, sizeof(float) * framesAvailableToCopy);
}
n += framesAvailableToCopy;
framesToProcess -= framesAvailableToCopy;
}
// Our work is done. Let the AudioContext know.
callOnMainThread([this] {
notifyComplete();
deref();
});
}
void PQdelete(Halfedge * he)
{
Halfedge *last;
if (he->vertex != (Site *) NULL) {
last = &PQhash[PQbucket(he)];
while (last->PQnext != he)
last = last->PQnext;
last->PQnext = he->PQnext;
PQcount -= 1;
deref(he->vertex);
he->vertex = (Site *) NULL;
}
}
Statement::~Statement()
{
inDestructor=true;
cleanup();
if(acquiredMutex){
qDebug("COULD DELETE Statement WITH MUTEX ACQUIRED. THIS IS A BUG.");
connection->unlock();
}
//qDebug("deleted statement");
deref();
}
static int
isallone (int start)
{
const char * p;
Exp * e;
start = deref (start);
if (start < 0)
{
e = exps - start;
if (!strcmp (e->op, "zero"))
return 1;
if (!e->name)
return 0;
if (!strcmp (e->op, "const") ||
!strcmp (e->op, "consth") ||
!strcmp (e->op, "constx"))
{
for (p = e->name; *p; p++)
if (*p != '0')
return 0;
return 1;
}
}
else
{
e = exps + start;
if (!e->name)
return 0;
if (!strcmp (e->op, "const") ||
(e->width == 1 &&
(!strcmp (e->op, "consth") || !strcmp (e->op, "constx"))))
{
for (p = e->name; *p; p++)
if (*p != '1')
return 0;
return 1;
}
}
return 0;
}
void ResourceHandle::fileLoadTimer(Timer<ResourceHandle>*)
{
RefPtr<ResourceHandle> protector(this);
deref(); // balances ref in start
if (firstRequest().url().protocolIsData()) {
handleDataURL(this);
return;
}
String fileName = firstRequest().url().fileSystemPath();
HANDLE fileHandle = CreateFileW(fileName.charactersWithNullTermination(), GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (fileHandle == INVALID_HANDLE_VALUE) {
client()->didFail(this, ResourceError());
return;
}
ResourceResponse response;
int dotPos = fileName.reverseFind('.');
int slashPos = fileName.reverseFind('/');
if (slashPos < dotPos && dotPos != -1) {
String ext = fileName.substring(dotPos + 1);
response.setMimeType(MIMETypeRegistry::getMIMETypeForExtension(ext));
}
client()->didReceiveResponse(this, response);
bool result = false;
DWORD bytesRead = 0;
do {
const int bufferSize = 8192;
char buffer[bufferSize];
result = ReadFile(fileHandle, &buffer, bufferSize, &bytesRead, 0);
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=19793
// -1 means we do not provide any data about transfer size to inspector so it would use
// Content-Length headers or content size to show transfer size.
if (result && bytesRead)
client()->didReceiveData(this, buffer, bytesRead, -1);
// Check for end of file.
} while (result && bytesRead);
CloseHandle(fileHandle);
client()->didFinishLoading(this, 0);
}
void MemoryManager::free(Value val){
switch (val.type){
case ValType::String: strings.free(val); break;
case ValType::BuiltinFunction: builtinFuns.free(val); break;
case ValType::UserClosure: userClosures.free(val); break;
case ValType::BuiltinClosure: builtinClosures.free(val); break;
case ValType::Continuation: continuations.free(val); break;
case ValType::Table:
for (auto pair : get<Table>(val)){
deref(pair.second);
}
tables.free(val);
default: return;
}
}
FILE *open_file(NODE *arg, char *access)
{
char *fnstr;
FILE *tstrm;
ref(arg);
arg = reref(arg, cnv_node_to_strnode(arg));
if (arg == UNBOUND) return(NULL);
fnstr = (char *) malloc((size_t)getstrlen(arg) + 1);
strnzcpy(fnstr, getstrptr(arg), getstrlen(arg));
tstrm = fopen(fnstr, access);
deref(arg);
free(fnstr);
return(tstrm);
}
/* This is where the handling of expressions breaks down into string
* processing:
*/
static void print_expression( struct fragment_program *p,
GLuint i,
const char *fmt,
va_list ap )
{
while (*fmt) {
if (*fmt == '%' && *(fmt+1) == 's') {
int reg = va_arg(ap, int);
/* Use of deref() is a bit of a hack:
*/
print_arg( p, deref(reg, i) );
fmt += 2;
}
else {
void check(unsigned int mem, unsigned int expected_val) {
if(mem == expected_val) {
putc('Y', vga);
put_hex(mem, vga + 2);
put_hex(expected_val, vga + 14);
vga += screen_width/4;
}
else {
deref(0xddd00000) = 0;
putc('N', vga);
put_hex(mem, vga + 2);
put_hex(expected_val, vga + 14);
vga += screen_width/4;
}
}
void PluginView::unprotectPluginFromDestruction()
{
if (m_isBeingDestroyed)
return;
// A plug-in may ask us to evaluate JavaScript that removes the plug-in from the
// page, but expect the object to still be alive when the call completes. Flash,
// for example, may crash if the plug-in is destroyed and we return to code for
// the destroyed object higher on the stack. To prevent this, if the plug-in has
// only one remaining reference, call deref() asynchronously.
if (hasOneRef())
RunLoop::main()->dispatch(bind(derefPluginView, this));
else
deref();
}
static Ref
pop_node(SerdReader* reader, Ref ref)
{
if (ref && ref != reader->rdf_first && ref != reader->rdf_rest
&& ref != reader->rdf_nil) {
#ifdef SERD_STACK_CHECK
SERD_STACK_ASSERT_TOP(reader, ref);
--reader->n_allocs;
#endif
SerdNode* const node = deref(reader, ref);
uint8_t* const top = reader->stack.buf + reader->stack.size;
serd_stack_pop(&reader->stack, top - (uint8_t*)node);
}
return 0;
}
void LayoutPart::destroy()
{
willBeDestroyed();
// We call clearNode here because LayoutPart is ref counted. This call to destroy
// may not actually destroy the layout object. We can keep it around because of
// references from the FrameView class. (The actual destruction of the class happens
// in postDestroy() which is called from deref()).
//
// But, we've told the system we've destroyed the layoutObject, which happens when
// the DOM node is destroyed. So there is a good change the DOM node this object
// points too is invalid, so we have to clear the node so we make sure we don't
// access it in the future.
clearNode();
deref();
}
void V8AbstractEventListener::clearListenerObject()
{
if (!hasExistingListenerObject())
return;
m_listener.clear();
if (m_workerGlobalScope) {
m_workerGlobalScope->deregisterEventListener(this);
} else {
#if ENABLE(OILPAN)
m_keepAlive.clear();
#else
deref();
#endif
}
}
void ScriptStreamer::streamingComplete()
{
// The background task is completed; do the necessary ramp-down in the main
// thread.
ASSERT(isMainThread());
// It's possible that the corresponding Resource was deleted before V8
// finished streaming. In that case, the data or the notification is not
// needed. In addition, if the streaming is suppressed, the non-streaming
// code path will resume after the resource has loaded, before the
// background task finishes.
if (m_detached || m_streamingSuppressed) {
deref();
return;
}
// We have now streamed the whole script to V8 and it has parsed the
// script. We're ready for the next step: compiling and executing the
// script.
notifyFinishedToClient();
// The background thread no longer holds an implicit reference.
deref();
}
void ScriptStreamer::notifyFinished(Resource* resource)
{
ASSERT(isMainThread());
ASSERT(m_resource == resource);
// A special case: empty and small scripts. We didn't receive enough data to
// start the streaming before this notification. In that case, there won't
// be a "parsing complete" notification either, and we should not wait for
// it.
if (!m_haveEnoughDataForStreaming) {
const char* histogramName = startedStreamingHistogramName(m_scriptType);
blink::Platform::current()->histogramEnumeration(histogramName, 0, 2);
suppressStreaming();
}
if (m_stream)
m_stream->didFinishLoading();
m_loadingFinished = true;
if (shouldBlockMainThread()) {
// Make the main thead wait until the streaming is complete, to make
// sure that the script gets the main thread's attention as early as
// possible (for possible compiling, if the client wants to do it
// right away). Note that blocking here is not any worse than the
// non-streaming code path where the main thread eventually blocks
// to parse the script.
TRACE_EVENT0("v8", "v8.mainThreadWaitingForParserThread");
MutexLocker locker(m_mutex);
while (!isFinished()) {
ASSERT(!m_parsingFinished);
ASSERT(!m_streamingSuppressed);
m_mainThreadWaitingForParserThread = true;
m_parsingFinishedCondition.wait(m_mutex);
}
}
// Calling notifyFinishedToClient can result into the upper layers dropping
// references to ScriptStreamer. Keep it alive until this function ends.
RefPtr<ScriptStreamer> protect(this);
notifyFinishedToClient();
if (m_mainThreadWaitingForParserThread) {
ASSERT(m_parsingFinished);
ASSERT(!m_streamingSuppressed);
// streamingComplete won't be called, so do the ramp-down work
// here.
deref();
}
}
void
print_lisp_frame(lisp_frame *frame)
{
LispObj fun = frame->savefn, pc = frame->savelr;
int delta = 0;
Dl_info info;
char *spname;
if ((fun == 0) || (fun == fulltag_misc)) {
spname = "unknown ?";
#ifndef STATIC
if (dladdr((void *)ptr_from_lispobj(pc), &info)) {
spname = (char *)(info.dli_sname);
#ifdef DARWIN
if (spname[-1] != '_') {
--spname;
}
#endif
}
#endif
#ifdef PPC64
Dprintf("(#x%016lX) #x%016lX : (subprimitive %s)", frame, pc, spname);
#else
Dprintf("(#x%08X) #x%08X : (subprimitive %s)", frame, pc, spname);
#endif
} else {
if ((fulltag_of(fun) != fulltag_misc) ||
(header_subtag(header_of(fun)) != subtag_function)) {
#ifdef PPC64
Dprintf("(#x%016lX) #x%016lX : (not a function!)", frame, pc);
#else
Dprintf("(#x%08X) #x%08X : (not a function!)", frame, pc);
#endif
} else {
LispObj code_vector = deref(fun, 1);
if ((pc >= (code_vector+misc_data_offset)) &&
(pc < ((code_vector+misc_data_offset)+(header_element_count(header_of(code_vector))<<2)))) {
delta = (pc - (code_vector+misc_data_offset));
}
#ifdef PPC64
Dprintf("(#x%016lX) #x%016lX : %s + %d", frame, pc, print_lisp_object(fun), delta);
#else
Dprintf("(#x%08X) #x%08X : %s + %d", frame, pc, print_lisp_object(fun), delta);
#endif
}
}
}
static Ref
read_BLANK_NODE_LABEL(SerdReader* reader, bool* ate_dot)
{
eat_byte_safe(reader, '_');
eat_byte_check(reader, ':');
Ref ref = push_node(reader, SERD_BLANK,
reader->bprefix ? (char*)reader->bprefix : "",
reader->bprefix_len);
uint8_t c = peek_byte(reader); // First: (PN_CHARS | '_' | [0-9])
if (is_digit(c) || c == '_') {
push_byte(reader, ref, eat_byte_safe(reader, c));
} else if (!read_PN_CHARS(reader, ref)) {
r_err(reader, SERD_ERR_BAD_SYNTAX, "invalid name start character\n");
return pop_node(reader, ref);
}
while ((c = peek_byte(reader))) { // Middle: (PN_CHARS | '.')*
if (c == '.') {
push_byte(reader, ref, eat_byte_safe(reader, c));
} else if (!read_PN_CHARS(reader, ref)) {
break;
}
}
SerdNode* n = deref(reader, ref);
if (n->buf[n->n_bytes - 1] == '.' && !read_PN_CHARS(reader, ref)) {
// Ate trailing dot, pop it from stack/node and inform caller
--n->n_bytes;
serd_stack_pop(&reader->stack, 1);
*ate_dot = true;
}
if (reader->syntax == SERD_TURTLE) {
if (is_digit(n->buf[reader->bprefix_len + 1])) {
if ((n->buf[reader->bprefix_len]) == 'b') {
((char*)n->buf)[reader->bprefix_len] = 'B'; // Prevent clash
reader->seen_genid = true;
} else if (reader->seen_genid &&
n->buf[reader->bprefix_len] == 'B') {
r_err(reader, SERD_ERR_ID_CLASH,
"found both `b' and `B' blank IDs, prefix required\n");
return pop_node(reader, ref);
}
}
}
return ref;
}
//remove the HalfEdge from the list of vertices
void VoronoiDiagramGenerator::PQdelete(struct VoronoiDiagramGenerator::Halfedge *he)
{
struct Halfedge *last;
if(he -> vertex != (struct Site *) NULL)
{
last = &PQhash[PQbucket(he)];
while (last -> PQnext != he)
last = last -> PQnext;
last -> PQnext = he -> PQnext;
PQcount -= 1;
deref(he -> vertex);
he -> vertex = (struct Site *) NULL;
};
}
internal
Type *canonical_type(Type *type, TypePool *pool) {
type = deref(type);
if (IS_VAR(type)) {
return type;
}
if (type->symbol == SYMBOL_UNIT) {
return pool->unit;
}
if (type->symbol == SYMBOL_NUMBER) {
return pool->number;
}
if (type->symbol == SYMBOL_BOOL) {
return pool->boolean;
}
}
void RenderWidget::destroy()
{
#if ENABLE(ASSERT) && ENABLE(OILPAN)
ASSERT(!m_didCallDestroy);
m_didCallDestroy = true;
#endif
willBeDestroyed();
clearNode();
#if ENABLE(OILPAN)
// In Oilpan, postDestroy doesn't delete |this|. So calling it here is safe
// though |this| will be referred in FrameView.
postDestroy();
#else
deref();
#endif
}
void StatsManager::run() {
qDebug() << "StatsManager thread starting up.";
while (true) {
m_statsPipeLock.lock();
m_statsPipeCondition.wait(&m_statsPipeLock);
// We want to process reports even when we are about to quit since we
// want to print the most accurate stat report on shutdown.
processIncomingStatReports();
m_statsPipeLock.unlock();
if (deref(m_quit) == 1) {
qDebug() << "StatsManager thread shutting down.";
break;
}
}
}
void MainResourceLoader::didCancel(const ResourceError& error)
{
m_dataLoadTimer.stop();
// Calling receivedMainResourceError will likely result in the last reference to this object to go away.
RefPtr<MainResourceLoader> protect(this);
if (m_waitingForContentPolicy) {
frameLoader()->cancelContentPolicyCheck();
ASSERT(m_waitingForContentPolicy);
m_waitingForContentPolicy = false;
deref(); // balances ref in didReceiveResponse
}
frameLoader()->receivedMainResourceError(error, true);
ResourceLoader::didCancel(error);
}
void NetworkResourceLoader::cleanup()
{
ASSERT(RunLoop::isMain());
invalidateSandboxExtensions();
// Tell the scheduler about this finished loader soon so it can start more network requests.
NetworkProcess::shared().networkResourceLoadScheduler().scheduleRemoveLoader(this);
if (m_handle) {
// Explicit deref() balanced by a ref() in NetworkResourceLoader::start()
// This might cause the NetworkResourceLoader to be destroyed and therefore we do it last.
m_handle = 0;
deref();
}
}
static inline void
push_byte(SerdReader* reader, Ref ref, const uint8_t c)
{
#ifdef SERD_STACK_CHECK
assert(stack_is_top_string(reader, ref));
#endif
serd_stack_push(&reader->stack, 1);
SerdString* const str = deref(reader, ref);
++str->n_bytes;
if ((c & 0xC0) != 0x80) {
// Does not start with `10', start of a new character
++str->n_chars;
}
assert(str->n_bytes >= str->n_chars);
str->buf[str->n_bytes - 1] = c;
str->buf[str->n_bytes] = '\0';
}
void NetworkResourceLoader::cleanup()
{
ASSERT(RunLoop::isMain());
m_bufferingTimer.stop();
invalidateSandboxExtensions();
NetworkProcess::shared().networkResourceLoadScheduler().removeLoader(this);
if (m_handle) {
// Explicit deref() balanced by a ref() in NetworkResourceLoader::start()
// This might cause the NetworkResourceLoader to be destroyed and therefore we do it last.
m_handle = 0;
deref();
}
}