Class LengthPrefixedStringRef

fdbserver/include/fdbserver/LogSystem.h:707–727

};

struct LengthPrefixedStringRef {
	// Represents a pointer to a string which is prefixed by a 4-byte length
	// A LengthPrefixedStringRef is only pointer-sized (8 bytes vs 12 bytes for StringRef), but the corresponding string
	// is 4 bytes bigger, and substring operations aren't efficient as they are with StringRef.  It's a good choice when
	// there might be lots of references to the same exact string.

	uint32_t* length;

	StringRef toStringRef() const {
		ASSERT(length);
		return StringRef((uint8_t*)(length + 1), *length);
	}
	int expectedSize() const {
		ASSERT(length);
		return *length;
	}
	uint32_t* getLengthPtr() const { return length; }

	LengthPrefixedStringRef() : length(nullptr) {}
	LengthPrefixedStringRef(uint32_t* length) : length(length) {}
};

// Structure to store serialized mutations sent from the proxy to the
// transaction logs. The serialization repeats with the following format: