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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
commit | f449f278dd3c70e479a035f50a9bb817a9b433ba (patch) | |
tree | 8ca2bfb785dda9bb4d573acdf9b42aea9cd51383 /src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_gaptr.h | |
parent | Initial commit. (diff) | |
download | knot-upstream/3.2.6.tar.xz knot-upstream/3.2.6.zip |
Adding upstream version 3.2.6.upstream/3.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_gaptr.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_gaptr.h b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_gaptr.h new file mode 100644 index 0000000..0f100a8 --- /dev/null +++ b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_gaptr.h @@ -0,0 +1,98 @@ +/* + * ngtcp2 + * + * Copyright (c) 2017 ngtcp2 contributors + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef NGTCP2_GAPTR_H +#define NGTCP2_GAPTR_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ + +#include <ngtcp2/ngtcp2.h> + +#include "ngtcp2_mem.h" +#include "ngtcp2_ksl.h" +#include "ngtcp2_range.h" + +/* + * ngtcp2_gaptr maintains the gap in the range [0, UINT64_MAX). + */ +typedef struct ngtcp2_gaptr { + /* gap maintains the range of offset which is not received + yet. Initially, its range is [0, UINT64_MAX). */ + ngtcp2_ksl gap; + /* mem is custom memory allocator */ + const ngtcp2_mem *mem; +} ngtcp2_gaptr; + +/* + * ngtcp2_gaptr_init initializes |gaptr|. + */ +void ngtcp2_gaptr_init(ngtcp2_gaptr *gaptr, const ngtcp2_mem *mem); + +/* + * ngtcp2_gaptr_free frees resources allocated for |gaptr|. + */ +void ngtcp2_gaptr_free(ngtcp2_gaptr *gaptr); + +/* + * ngtcp2_gaptr_push adds new data of length |datalen| at the stream + * offset |offset|. + * + * This function returns 0 if it succeeds, or one of the following + * negative error codes: + * + * NGTCP2_ERR_NOMEM + * Out of memory + */ +int ngtcp2_gaptr_push(ngtcp2_gaptr *gaptr, uint64_t offset, uint64_t datalen); + +/* + * ngtcp2_gaptr_first_gap_offset returns the offset to the first gap. + * If there is no gap, it returns UINT64_MAX. + */ +uint64_t ngtcp2_gaptr_first_gap_offset(ngtcp2_gaptr *gaptr); + +/* + * ngtcp2_gaptr_get_first_gap_after returns the first gap which + * overlaps or comes after |offset|. + */ +ngtcp2_range ngtcp2_gaptr_get_first_gap_after(ngtcp2_gaptr *gaptr, + uint64_t offset); + +/* + * ngtcp2_gaptr_is_pushed returns nonzero if range [offset, offset + + * datalen) is completely pushed into this object. + */ +int ngtcp2_gaptr_is_pushed(ngtcp2_gaptr *gaptr, uint64_t offset, + uint64_t datalen); + +/* + * ngtcp2_gaptr_drop_first_gap deletes the first gap entirely as if + * the range is pushed. This function assumes that at least one gap + * exists. + */ +void ngtcp2_gaptr_drop_first_gap(ngtcp2_gaptr *gaptr); + +#endif /* NGTCP2_GAPTR_H */ |