return scope.Close(Integer::New(-1)); \
}
-#define SLAB_SIZE (1024 * 1024)
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-
// TODO share with tcp_wrap.cc
Persistent<String> address_symbol;
Persistent<String> port_symbol;
Persistent<String> buffer_sym;
-static Persistent<String> udp_slab_sym;
void AddressToJS(Handle<Object> info,
const sockaddr* addr,
typedef ReqWrap<uv_udp_send_t> SendWrap;
-static size_t slab_used;
-size_t slab_offset_;
-static uv_handle_t* handle_that_last_alloced;
-
-
class UDPWrap: public HandleWrap {
public:
static void Initialize(Handle<Object> target);
static Handle<Value> SetTTL(const Arguments& args);
private:
- static inline char* NewSlab(v8::Handle<v8::Object> global, v8::Handle<v8::Object> wrap_obj);
-
UDPWrap(Handle<Object> object);
virtual ~UDPWrap();
HandleScope scope;
- udp_slab_sym = Persistent<String>::New(String::NewSymbol("udpslab"));
buffer_sym = NODE_PSYMBOL("buffer");
port_symbol = NODE_PSYMBOL("port");
address_symbol = NODE_PSYMBOL("address");
uv_buf_t UDPWrap::OnAlloc(uv_handle_t* handle, size_t suggested_size) {
- HandleScope scope;
-
- UDPWrap* wrap = static_cast<UDPWrap*>(handle->data);
-
- char* slab = NULL;
-
- Handle<Object> global = Context::GetCurrent()->Global();
- Local<Value> slab_v = global->GetHiddenValue(udp_slab_sym);
-
- if (slab_v.IsEmpty()) {
- // No slab currently. Create a new one.
- slab = NewSlab(global, wrap->object_);
- } else {
- // Use existing slab.
- Local<Object> slab_obj = slab_v->ToObject();
- slab = Buffer::Data(slab_obj);
- assert(Buffer::Length(slab_obj) == SLAB_SIZE);
- assert(SLAB_SIZE >= slab_used);
-
- // If less than 64kb is remaining on the slab allocate a new one.
- if (SLAB_SIZE - slab_used < 64 * 1024) {
- slab = NewSlab(global, wrap->object_);
- } else {
- wrap->object_->SetHiddenValue(udp_slab_sym, slab_obj);
- }
- }
-
- uv_buf_t buf;
- buf.base = slab + slab_used;
- buf.len = MIN(SLAB_SIZE - slab_used, suggested_size);
-
- slab_offset_ = slab_used;
- slab_used += buf.len;
-
- handle_that_last_alloced = reinterpret_cast<uv_handle_t*>(handle);
-
- return buf;
-
+ return uv_buf_init(new char[suggested_size], suggested_size);
}
uv_buf_t buf,
struct sockaddr* addr,
unsigned flags) {
+ HandleScope scope;
+
if (nread == 0) {
+ free(buf.base);
return;
}
- HandleScope scope;
-
UDPWrap* wrap = reinterpret_cast<UDPWrap*>(handle->data);
Handle<Value> argv[4] = {
argv[2] = Buffer::New(buf.base, nread, NULL, NULL)->handle_;
argv[3] = rinfo;
}
+ free(buf.base);
MakeCallback(wrap->object_, "onmessage", ARRAY_SIZE(argv), argv);
}
-inline char* UDPWrap::NewSlab(Handle<Object> global,
- Handle<Object> wrap_obj) {
- Buffer* b = Buffer::New(SLAB_SIZE);
- global->SetHiddenValue(udp_slab_sym, b->handle_);
- assert(Buffer::Length(b) == SLAB_SIZE);
- slab_used = 0;
- wrap_obj->SetHiddenValue(udp_slab_sym, b->handle_);
- return Buffer::Data(b);
-}
void AddressToJS(Handle<Object> info,
const sockaddr* addr,