mirror of
https://libwebsockets.org/repo/libwebsockets
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962e9ee345
C++ APIs wrapping SS client These are intended to provide an experimental protocol-independent c++ api even more abstracted than secure streams, along the lines of "wget -Omyfile https://example.com/thing" WIP
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2020 Andy Green <andy@warmcat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* C++ classes for Secure Streams - atomic heap messages
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*/
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#include <libwebsockets.hxx>
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#include "private-lib-misc-lwsac.h"
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void
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lssAc::start(bool atomic)
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{
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if (atomic && ac->next) {
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struct lwsac *ac2 = NULL, *i;
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size_t total = (size_t)lwsac_total_alloc(ac);
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uint8_t *p = (uint8_t *)lwsac_use(&ac2, total, total);
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/*
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* He wants a single linear buffer, and we have more than one
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* piece... let's make a new, single one, copy the fragments
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* in and replace the fragmented one with the unified copy.
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*/
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i = ac;
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while (i) {
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size_t bl = lwsac_get_tail_pos(i) -
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lwsac_sizeof(i == ac);
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memcpy(p, (uint8_t *)i + lwsac_sizeof(i == ac), bl);
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p += bl;
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}
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lwsac_free(&ac);
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ac = ac2;
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}
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iter = ac;
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}
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int
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lssAc::get(lssbuf_t *lb)
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{
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if (!ac)
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return 1;
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lb->buf = (uint8_t *)iter + lwsac_sizeof(iter == ac);
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lb->len = lwsac_get_tail_pos(iter) - lwsac_sizeof(iter == ac);
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iter = iter->next;
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return 0;
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}
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void
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lssAc::append(lssbuf_t *lb)
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{
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uint8_t *p = (uint8_t *)lwsac_use(&ac, lb->len, lb->len);
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if (!p)
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throw lssException("oom");
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memcpy(p, lb->buf, lb->len);
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}
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