evgeny
38c9f229bc
- u_async.c: process immediate_queue BEFORE epoll_wait in uasync_poll - stcp_link.c: defensive NULL etcp_conn/etcp_link in stcp_link_close - utun_instance.c: move stcp_server_list_destroy_all to Phase J (before ETCP), add deferred drain in both Phase J and L - stcp.h/c: STCP_HS_ENC_CLIENT 6→38, STCP_HS_ENC_SERVER 7→39, exchange ed25519_pubkey in both handshake directions - etcp_connections.c: copy peer_ed25519 from STCP to ETCP_CONN in etcp_link_enter_ready_tcp; guard link->etcp in tcp_link_close_cb - chat_sync.c: fix lk->conn NULL dereference for TCP links - test_stcp.c: update stcp_server_create/stcp_client_connect callsites - tools/chat_tcp_test: change transport udp→tcp
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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* Copyright 2025 Axel Waggershauser
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*/
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "ZXAlgorithms.h"
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#include <cstring>
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#ifdef __cpp_lib_format // not available on gcc 12
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#include <format>
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#endif
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#include <optional>
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#include <string>
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#include <string_view>
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namespace ZXing {
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std::string JsonEscapeStr(std::string_view str);
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std::string JsonUnEscapeStr(std::string_view str);
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template<typename T>
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inline std::string JsonProp(std::string_view key, const T& val, const T& ignore = {})
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{
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#define ZX_JSON_KEY_VAL(...) StrCat("\"", key, "\":", __VA_ARGS__, ',')
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#if !defined(__cpp_lib_to_chars) || !defined(__cpp_lib_format) // not available on older macOS / gcc 12
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#define ZX_JSON_FMT_FLOAT(val) (std::to_string(int(val)) + '.' + std::to_string(int(val * 100) % 100))
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#else
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#define ZX_JSON_FMT_FLOAT(val) std::format("{:.2f}", val)
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#endif
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if constexpr (std::is_same_v<T, bool>)
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return val != ignore ? ZX_JSON_KEY_VAL(val ? "true" : "false") : "";
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else if constexpr (std::is_floating_point_v<T>)
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return val != ignore ? ZX_JSON_KEY_VAL(ZX_JSON_FMT_FLOAT(val)) : "";
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else if constexpr (std::is_integral_v<T>)
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return val != ignore ? ZX_JSON_KEY_VAL(std::to_string(val)) : "";
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else if constexpr (std::is_convertible_v<T, std::string_view>)
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return std::string_view(val) != std::string_view(ignore) ? ZX_JSON_KEY_VAL("\"", JsonEscapeStr(val), "\"") : "";
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else
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static_assert("unsupported JSON value type");
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#undef ZX_JSON_KEY_VAL
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}
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// Finds the (potentially escaped / raw) value of the provided key
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std::string_view JsonFind(std::string_view json, std::string_view key);
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template <typename T>
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inline std::optional<T> JsonGet(std::string_view json, std::string_view key)
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{
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auto str = JsonFind(json, key);
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if (!str.data())
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return std::nullopt;
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if constexpr (std::is_same_v<bool, T>)
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return str.empty() || Contains("1tT", str.front()) ? std::optional(true) : std::nullopt;
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else if constexpr (std::is_arithmetic_v<T>)
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return str.empty() ? std::nullopt : std::optional(FromString<T>(str));
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else if constexpr (std::is_same_v<std::string, T>)
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return JsonUnEscapeStr(str);
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else
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static_assert("unsupported JSON value type");
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}
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} // ZXing
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