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https://github.com/hanzo-ds/cpp.git
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zeekay
286f257aae
Pure rename applied on top of upstream tag v2.6.2 (8d2415d6), not HEAD.
The fork was cut at 737145d = v2.6.2-57, which still declared version 2.6.2
in version.h; renaming there would have shipped 57 unreleased commits wearing
a 2.6.2 label. Reset to the tag first so this commit changes names only.
clickhouse/ -> datastore/ (public include root)
namespace clickhouse -> namespace datastore
CLICKHOUSE_CPP_VERSION -> DATASTORE_CPP_VERSION
clickhouse-cpp-lib/-ut -> datastore-cpp-lib/-ut (CMake, Bazel)
CH_MAP_BOOL_TO_UINT8 -> DS_MAP_BOOL_TO_UINT8
CLICKHOUSE_* -> DATASTORE_* (test env vars)
doc links -> docs.hanzo.ai/datastore
This client speaks the NATIVE binary protocol only - there is no HTTP path
and no X-ClickHouse-* header anywhere in it, so the header rename that the
HTTP clients required does not apply and nothing here was broken.
The one string that reaches the wire is CLIENT_NAME, sent by both SendHello
and SendQuery's ClientInfo from a single macro, and it lands in
system.query_log.client_name. Both sites still read the one macro, so they
stay consistent and the server's Hello/Query consistency check is satisfied.
Old rows keep the old name; that is a reporting discontinuity, not a
migration, since nothing keys on it.
CI is repointed at our own server: ghcr.io/hanzoai/datastore:26.2.3.2, the
image production runs. Its entrypoint honours DATASTORE_SKIP_USER_SETUP, not
the CLICKHOUSE_ spelling the compose file used, and its config lives in
/etc/hanzo-datastore-server. ci/docker-compose/config.xml is now layered in
as a config.d drop-in so the image keeps its own white-labelling. That file
and users.xml deliberately keep a <clickhouse> root: it must match the roots
of the drop-ins the image ships, and a mismatch fails silently - the server
logs "Merging bypassed" and starts with every drop-in discarded.
The remote-TLS suites used to default to the third-party host
play.clickhouse.com. They now read DATASTORE_SECURE*_HOST and skip when it is
unset rather than point at a host we do not run.
Dropped as upstream infrastructure with no meaning here: AI_POLICY.md
(upstream's policy about their codebase), .travis.yml (dead CI referencing a
third-party apt repo), cross-repo-bug-relay.yml (relays our issues into an
upstream triage repo). LICENSE keeps its copyright notice, as Apache-2.0
requires.
Verified: cmake configure + 115-target build clean; the full suite is green
against ghcr.io/hanzoai/datastore:26.2.3.2 (894 passed, 0 failed); the
pristine v2.6.2 build run against that same server passes the identical set,
and both logged the same 3914 queries under their respective client names.
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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#include <memory>
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namespace datastore {
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class InputStream {
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public:
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virtual ~InputStream() noexcept (false)
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{ }
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/// Reads one byte from the stream.
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inline bool ReadByte(uint8_t* byte) {
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return DoRead(byte, sizeof(uint8_t)) == sizeof(uint8_t);
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}
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/// Reads some data from the stream.
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inline size_t Read(void* buf, size_t len) {
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return DoRead(buf, len);
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}
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// Skips a number of bytes. Returns false if an underlying read error occurs.
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virtual bool Skip(size_t bytes) = 0;
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protected:
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virtual size_t DoRead(void* buf, size_t len) = 0;
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};
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class ZeroCopyInput : public InputStream {
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public:
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inline size_t Next(const void** buf, size_t len) {
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return DoNext(buf, len);
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}
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bool Skip(size_t bytes) override;
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protected:
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virtual size_t DoNext(const void** ptr, size_t len) = 0;
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size_t DoRead(void* buf, size_t len) override;
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};
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/**
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* A ZeroCopyInput stream backed by an in-memory array of bytes.
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*/
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class ArrayInput : public ZeroCopyInput {
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public:
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ArrayInput() noexcept;
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ArrayInput(const void* buf, size_t len) noexcept;
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~ArrayInput() override;
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/// Number of bytes available in the stream.
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inline size_t Avail() const noexcept {
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return len_;
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}
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/// Current read position in the memory block used by this stream.
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inline const uint8_t* Data() const noexcept {
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return data_;
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}
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/// Whether there is more data in the stream.
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inline bool Exhausted() const noexcept {
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return !Avail();
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}
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inline void Reset(const void* buf, size_t len) noexcept {
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data_ = static_cast<const uint8_t*>(buf);
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len_ = len;
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}
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private:
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size_t DoNext(const void** ptr, size_t len) override;
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private:
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const uint8_t* data_;
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size_t len_;
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};
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class BufferedInput : public ZeroCopyInput {
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public:
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BufferedInput(std::unique_ptr<InputStream> source, size_t buflen = 8192);
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~BufferedInput() override;
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void Reset();
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protected:
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size_t DoRead(void* buf, size_t len) override;
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size_t DoNext(const void** ptr, size_t len) override;
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private:
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std::unique_ptr<InputStream> const source_;
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ArrayInput array_input_;
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std::vector<uint8_t> buffer_;
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};
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}
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