67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
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// Copyright 2021, Beeri 15. All rights reserved.
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// Author: Roman Gershman (romange@gmail.com)
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//
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#pragma once
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#include <string_view>
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#include <vector>
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namespace dfly {
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// Memcache parser does not parse value blobs, only the commands.
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// The expectation is that the caller will parse the command and
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// then will follow up with reading the blob data directly from source.
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class MemcacheParser {
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public:
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enum CmdType {
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INVALID = 0,
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SET = 1,
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ADD = 2,
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REPLACE = 3,
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APPEND = 4,
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PREPEND = 5,
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CAS = 6,
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// Retrieval
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GET = 10,
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GETS = 11,
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GAT = 12,
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GATS = 13,
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// Delete and INCR
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DELETE = 21,
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INCR = 22,
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DECR = 23,
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};
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struct Command {
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CmdType type = INVALID;
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std::string_view key;
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std::vector<std::string_view> keys_ext;
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uint64_t cas_unique = 0;
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uint32_t expire_ts = 0;
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uint32_t bytes_len = 0;
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uint16_t flags = 0;
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bool no_reply = false;
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};
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enum Result {
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OK,
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INPUT_PENDING,
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UNKNOWN_CMD,
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BAD_INT,
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PARSE_ERROR,
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};
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static bool IsStoreCmd(CmdType type) {
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return type >= SET && type <= CAS;
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}
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Result Parse(std::string_view str, uint32_t* consumed, Command* res);
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private:
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};
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} // namespace dfly
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