mirror of
https://github.com/shadowsocks/shadowsocks-libev.git
synced 2026-10-20 12:51:50 +00:00
Max Lv
bcb3731968
* Enable C++20 alongside C11 in the build Add CXX to the project with C++20 (no extensions) and build C++ sources with -Wextra -fno-exceptions -fno-rtti -fno-threadsafe-statics on top of the existing warning flags. Give every toolchain a C++ compiler: the zig Windows toolchain, the static macOS/Windows CI jobs, the static musl image (clang++ plus libstdc++ headers) and the RPM spec. * Add C++20 ownership and allocation core Header-only primitives for the no-heap-after-startup design: Result/Status, Region, ObjectPool with PoolPtr (std::unique_ptr with a pool deleter), generation-checked Handle and asynchronous close support, intrusive RefPtr, FixedBuffer, MonotonicArena, FixedHashMap and FixedLru, IntrusiveList, and a bounded FixedHeap for third-party allocator hooks. Unit tests cover each primitive (test_core_*). scripts/check_no_heap.py rejects heap allocation in C++ sources under src/ and runs as a ctest. clang-tidy now also analyses C++ sources and the core headers. * Add heap allocation audit for relayed connections alloc_counter is a preloadable malloc counter (glibc, macOS) that writes a snapshot on SIGUSR2. measure_alloc.py warms ss-local and ss-server up, snapshots both, relays more connections and reports allocations per connection. It runs report-only as the alloc_audit_report ctest. interop.peers() now yields the started processes. * Document the C++20 port and allocation baseline docs/cpp-core.md describes the language profile, the core primitives, the phase plan and the measured C baseline (77-89 allocations per connection in ss-server, 27-39 in ss-local). The compatibility contract now keeps the C11 public header instead of a C11 code base. CLAUDE.md drops stale libev, submodule and gnu99 references. * Fix CI for the C++ core: libstdc++ headers, static unwinder, newer clang - docker/static: Alpine's libstdc++ headers come with g++, and the C++ tests' static libstdc++ needs an unwinder that compiler-rt lacks; add g++ and llvm-libunwind. - FixedBuffer: drop the unused kCapacity (clang-tidy 18 reports it as a dynamically initialized header static). - ss-server on Windows: manager_addr was only read in POSIX-only code, which newer clang rejects (-Wunused-but-set-global); say that the option is ignored there. * CI: allow running the test and build workflows by hand Stacked PRs target their parent branch, which these workflows do not trigger on; workflow_dispatch lets each layer run the full matrix. * CI: let clang-tidy ignore GCC-only warning flags The compile database comes from a GCC build, whose flags (for example -Wno-class-memaccess) clang-tidy does not know and reports as errors.
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/* SPDX-License-Identifier: GPL-3.0-or-later */
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#include <cstdint>
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#include <cstring>
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#include "core/arena.hpp"
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#include "test_helpers.hpp"
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namespace {
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struct Pair {
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int a;
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double b;
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};
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void test_allocate_alignment()
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{
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ss::MonotonicArena arena;
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SS_CHECK(arena.reserve(256));
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auto c = arena.allocate(1, 1);
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SS_CHECK(c);
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auto d = arena.allocate(8, 64);
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SS_CHECK(d);
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SS_CHECK(reinterpret_cast<std::uintptr_t>(d->data()) % 64 == 0);
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auto p = arena.make<Pair>(Pair{ 3, 1.5 });
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SS_CHECK(p && (*p)->a == 3 && (*p)->b == 1.5);
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SS_CHECK(!arena.allocate(8, 3));
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}
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void test_exhaustion_and_reset()
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{
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ss::MonotonicArena arena;
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SS_CHECK(!arena.allocate(1));
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SS_CHECK(arena.reserve(64));
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SS_CHECK(arena.allocate(64, 1));
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auto over = arena.allocate(1, 1);
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SS_CHECK(!over && over.error().code == ss::Errc::exhausted);
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arena.reset();
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SS_CHECK(arena.used() == 0 && arena.peak() == 64);
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SS_CHECK(arena.allocate(32, 1));
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}
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void test_intern_and_arrays()
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{
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ss::MonotonicArena arena;
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SS_CHECK(arena.reserve(128));
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auto s = arena.intern("aes-256-gcm");
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SS_CHECK(s && *s == "aes-256-gcm");
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SS_CHECK(s->data()[s->size()] == '\0');
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auto empty = arena.intern("");
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SS_CHECK(empty && empty->empty());
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auto ports = arena.make_array<std::uint16_t>(4);
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SS_CHECK(ports && ports->size() == 4 && (*ports)[3] == 0);
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}
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} // namespace
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int main()
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{
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SS_RUN(test_allocate_alignment);
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SS_RUN(test_exhaustion_and_reset);
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SS_RUN(test_intern_and_arrays);
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return 0;
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}
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