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[Yunq] Move MessageView higher in call stack.

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This commit is contained in:
Drew Galbraith 2024-01-11 19:51:18 -08:00
parent 30b220b2fb
commit 0e6aa532a1
14 changed files with 181 additions and 160 deletions
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24
lib/yunq/message_view.h
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@ -3,11 +3,20 @@
#include <glacier/buffer/byte_buffer.h>
#include <glacier/container/vector.h>
#include <glacier/status/error_or.h>
#include <glacier/status/status.h>
namespace yunq {
const uint64_t kHeaderSize = 24; // 4x uint32, 1x uint64
struct MessageHeader {
uint32_t ident;
uint32_t core_length;
uint32_t length;
uint32_t crc32;
uint64_t options;
} __attribute__((packed));
struct ExtensionPointer {
uint32_t offset;
uint32_t length;
@ -18,31 +27,34 @@ class MessageView {
MessageView(const glcr::ByteBuffer& buffer, uint64_t offset)
: buffer_(buffer), offset_(offset) {}
[[nodiscard]] glcr::Status CheckHeader() const;
// TODO: Implement glcr::StatusOr
template <typename T>
glcr::ErrorOr<T> ReadField(uint64_t field_index);
glcr::ErrorOr<T> ReadField(uint64_t field_index) const;
template <typename T>
glcr::ErrorOr<glcr::Vector<T>> ReadRepeated(uint64_t field_index);
glcr::ErrorOr<glcr::Vector<T>> ReadRepeated(uint64_t field_index) const;
private:
const glcr::ByteBuffer& buffer_;
uint64_t offset_;
uint64_t field_offset(uint64_t field_index) {
uint64_t field_offset(uint64_t field_index) const {
return offset_ + kHeaderSize + (8 * field_index);
}
};
template <>
glcr::ErrorOr<uint64_t> MessageView::ReadField<uint64_t>(uint64_t field_index);
glcr::ErrorOr<uint64_t> MessageView::ReadField<uint64_t>(
uint64_t field_index) const;
template <>
glcr::ErrorOr<glcr::String> MessageView::ReadField<glcr::String>(
uint64_t field_index);
uint64_t field_index) const;
template <>
glcr::ErrorOr<glcr::Vector<uint64_t>> MessageView::ReadRepeated<uint64_t>(
uint64_t field_index);
uint64_t field_index) const;
} // namespace yunq