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fs: simplify FSReqBase slightly #19174

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fs: simplify FSReqBase slightly #19174

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12 changes: 7 additions & 5 deletions src/node_file.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,11 +39,11 @@ class FSReqBase : public ReqWrap<uv_fs_t> {
encoding_ = encoding;

if (data != nullptr) {
CHECK_EQ(data_, nullptr);
CHECK(!has_data_);
buffer_.AllocateSufficientStorage(len + 1);
buffer_.SetLengthAndZeroTerminate(len);
memcpy(*buffer_, data, len);
data_ = *buffer_;
has_data_ = true;
}
}

Expand All @@ -54,17 +54,19 @@ class FSReqBase : public ReqWrap<uv_fs_t> {
virtual void SetReturnValue(const FunctionCallbackInfo<Value>& args) = 0;

const char* syscall() const { return syscall_; }
const char* data() const { return data_; }
const char* data() const { return has_data_ ? *buffer_ : nullptr; }
enum encoding encoding() const { return encoding_; }

size_t self_size() const override { return sizeof(*this); }

private:
enum encoding encoding_ = UTF8;
bool has_data_ = false;
const char* syscall_ = nullptr;

const char* data_ = nullptr;
MaybeStackBuffer<char> buffer_;
// Typically, the content of buffer_ is something like a file name, so
// something around 64 bytes should be enough.
MaybeStackBuffer<char, 64> buffer_;

DISALLOW_COPY_AND_ASSIGN(FSReqBase);
};
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