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: /*
: Copyright (c) 2025 Giuseppe Roberti.
: All rights reserved.
:
: Redistribution and use in source and binary forms, with or without modification,
: are permitted provided that the following conditions are met:
:
: 1. Redistributions of source code must retain the above copyright notice, this
: list of conditions and the following disclaimer.
:
: 2. Redistributions in binary form must reproduce the above copyright notice,
: this list of conditions and the following disclaimer in the documentation and/or
: other materials provided with the distribution.
:
: 3. Neither the name of the copyright holder nor the names of its contributors
: may be used to endorse or promote products derived from this software without
: specific prior written permission.
:
: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
: WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
: DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
: ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
: LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
: SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
: */
: #pragma once
:
: #include "nngxx/concept.h"
: #include "nngxx/err.h"
: #include "nngxx/msg.h"
:
: namespace nngxx
: {
:
: struct msg_body
: {
: msg_body(nng_msg* m) noexcept
: : m{m}
: {
: }
:
: [[nodiscard]] inline std::size_t size() const noexcept
: {
0 / 1 : return nng_msg_len(m);
: }
:
: template<typename char_t>
: [[nodiscard]] inline char_t* data() noexcept
: {
: return static_cast<char_t*>(nng_msg_body(m));
: }
:
: template<typename char_t>
: [[nodiscard]] inline char_t* const data() const noexcept
: {
0 / 1 : return static_cast<char_t* const>(nng_msg_body(m));
: }
:
: template<uint_c uint_t>
: [[nodiscard]] inline clev::expected<uint_t> append() noexcept
: {
: uint_t x;
:
: int (*append)(nng_msg*, uint_t*);
:
: if constexpr (std::is_same_v<uint_t, uint16_t>)
: {
: append = nng_msg_append;
: }
: else if constexpr (std::is_same_v<uint_t, uint32_t>)
: {
: append = nng_msg_trim_u32;
: }
: else if constexpr (std::is_same_v<uint_t, uint64_t>)
: {
: append = nng_msg_trim_u64;
: }
:
: return nngxx::invoke(append, m, &x);
: }
:
: template<uint_c uint_t>
: [[nodiscard]] inline clev::expected<uint_t> trim() noexcept
: {
: uint_t x;
:
: int (*trim)(nng_msg*, uint_t*);
:
: if constexpr (std::is_same_v<uint_t, uint16_t>)
: {
: trim = nng_msg_trim_u16;
: }
: else if constexpr (std::is_same_v<uint_t, uint32_t>)
: {
: trim = nng_msg_trim_u32;
: }
: else if constexpr (std::is_same_v<uint_t, uint64_t>)
: {
: trim = nng_msg_trim_u64;
: }
:
: return nngxx::invoke(trim, m, &x);
: }
:
: [[nodiscard]] inline clev::expected<void> trim(std::size_t sz) noexcept
: {
0 / 1 : return nngxx::invoke(nng_msg_trim, m, sz);
: }
:
: template<uint_c uint_t>
: [[nodiscard]] inline clev::expected<uint_t> chop() noexcept
: {
: uint_t x;
:
: int (*chop)(nng_msg*, uint_t*);
:
: if constexpr (std::is_same_v<uint_t, uint16_t>)
: {
: chop = nng_msg_chop;
: }
: else if constexpr (std::is_same_v<uint_t, uint32_t>)
: {
: chop = nng_msg_chop_u32;
: }
: else if constexpr (std::is_same_v<uint_t, uint64_t>)
: {
: chop = nng_msg_chop_u64;
: }
:
: return nngxx::invoke(chop, m, &x);
: }
:
: [[nodiscard]] inline clev::expected<void> chop(std::size_t sz) noexcept
: {
0 / 1 : return nngxx::invoke(nng_msg_chop, m, sz);
: }
:
: private:
: nng_msg* m;
: };
:
: } // namespace nngxx
:
: nngxx::msg_body nngxx::msg_view::body() noexcept
: {
0 / 1 : return nngxx::msg_body{v};
: }
:
: const nngxx::msg_body nngxx::msg_view::body() const noexcept
: {
0 / 1 : return nngxx::msg_body{v};
: }
:
: static_assert(std::copyable<nngxx::msg_body>);
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