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net: fix crash if POLLHUP is received #32590

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net: fix crash if POLLHUP is received #32590

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00e04bc
net: fix crash if POLLHUP is received
santigimeno Mar 31, 2020
fed0629
fixup! net: fix crash if POLLHUP is received
addaleax Apr 5, 2020
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10 changes: 9 additions & 1 deletion src/stream_base.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -517,13 +517,21 @@ uv_buf_t CustomBufferJSListener::OnStreamAlloc(size_t suggested_size) {

void CustomBufferJSListener::OnStreamRead(ssize_t nread, const uv_buf_t& buf) {
CHECK_NOT_NULL(stream_);
CHECK_EQ(buf.base, buffer_.base);

StreamBase* stream = static_cast<StreamBase*>(stream_);
Environment* env = stream->stream_env();
HandleScope handle_scope(env->isolate());
Context::Scope context_scope(env->context());

// To deal with the case where POLLHUP is received and UV_EOF is returned, as
// libuv returns an empty buffer (on unices only).
if (nread == UV_EOF && buf.base == nullptr) {
stream->CallJSOnreadMethod(nread, Local<ArrayBuffer>());
return;
}

CHECK_EQ(buf.base, buffer_.base);

MaybeLocal<Value> ret = stream->CallJSOnreadMethod(nread,
Local<ArrayBuffer>(),
0,
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