1 |
|
|
#ifndef SRC_STREAM_PIPE_H_ |
2 |
|
|
#define SRC_STREAM_PIPE_H_ |
3 |
|
|
|
4 |
|
|
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS |
5 |
|
|
|
6 |
|
|
#include "stream_base.h" |
7 |
|
|
|
8 |
|
|
namespace node { |
9 |
|
|
|
10 |
|
|
class StreamPipe : public AsyncWrap { |
11 |
|
|
public: |
12 |
|
|
~StreamPipe() override; |
13 |
|
|
|
14 |
|
|
void Unpipe(bool is_in_deletion = false); |
15 |
|
|
|
16 |
|
|
static v8::Maybe<StreamPipe*> New(StreamBase* source, |
17 |
|
|
StreamBase* sink, |
18 |
|
|
v8::Local<v8::Object> obj); |
19 |
|
|
static void New(const v8::FunctionCallbackInfo<v8::Value>& args); |
20 |
|
|
static void Start(const v8::FunctionCallbackInfo<v8::Value>& args); |
21 |
|
|
static void Unpipe(const v8::FunctionCallbackInfo<v8::Value>& args); |
22 |
|
|
static void IsClosed(const v8::FunctionCallbackInfo<v8::Value>& args); |
23 |
|
|
static void PendingWrites(const v8::FunctionCallbackInfo<v8::Value>& args); |
24 |
|
|
|
25 |
|
|
SET_NO_MEMORY_INFO() |
26 |
|
|
SET_MEMORY_INFO_NAME(StreamPipe) |
27 |
|
|
SET_SELF_SIZE(StreamPipe) |
28 |
|
|
|
29 |
|
|
private: |
30 |
|
|
StreamPipe(StreamBase* source, StreamBase* sink, v8::Local<v8::Object> obj); |
31 |
|
|
|
32 |
|
|
inline StreamBase* source(); |
33 |
|
|
inline StreamBase* sink(); |
34 |
|
|
|
35 |
|
|
int pending_writes_ = 0; |
36 |
|
|
bool is_reading_ = false; |
37 |
|
|
bool is_eof_ = false; |
38 |
|
|
bool is_closed_ = true; |
39 |
|
|
bool sink_destroyed_ = false; |
40 |
|
|
bool source_destroyed_ = false; |
41 |
|
|
bool uses_wants_write_ = false; |
42 |
|
|
|
43 |
|
|
// Set a default value so that when we’re coming from Start(), we know |
44 |
|
|
// that we don’t want to read just yet. |
45 |
|
|
// This will likely need to be changed when supporting streams without |
46 |
|
|
// `OnStreamWantsWrite()` support. |
47 |
|
|
size_t wanted_data_ = 0; |
48 |
|
|
|
49 |
|
|
void ProcessData(size_t nread, std::unique_ptr<v8::BackingStore> bs); |
50 |
|
|
|
51 |
|
|
class ReadableListener : public StreamListener { |
52 |
|
|
public: |
53 |
|
|
uv_buf_t OnStreamAlloc(size_t suggested_size) override; |
54 |
|
|
void OnStreamRead(ssize_t nread, const uv_buf_t& buf) override; |
55 |
|
|
void OnStreamDestroy() override; |
56 |
|
|
}; |
57 |
|
|
|
58 |
|
|
class WritableListener : public StreamListener { |
59 |
|
|
public: |
60 |
|
|
uv_buf_t OnStreamAlloc(size_t suggested_size) override; |
61 |
|
|
void OnStreamRead(ssize_t nread, const uv_buf_t& buf) override; |
62 |
|
|
void OnStreamAfterWrite(WriteWrap* w, int status) override; |
63 |
|
|
void OnStreamAfterShutdown(ShutdownWrap* w, int status) override; |
64 |
|
|
void OnStreamWantsWrite(size_t suggested_size) override; |
65 |
|
|
void OnStreamDestroy() override; |
66 |
|
|
}; |
67 |
|
|
|
68 |
|
|
ReadableListener readable_listener_; |
69 |
|
|
WritableListener writable_listener_; |
70 |
|
|
}; |
71 |
|
|
|
72 |
|
|
} // namespace node |
73 |
|
|
|
74 |
|
|
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS |
75 |
|
|
|
76 |
|
|
#endif // SRC_STREAM_PIPE_H_ |