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This allows the push routine to cache the chosen compression algorithm in the struct ndr_compression_state in ndr->cstate and so, in claims, avoid calling ndr_size_CLAIMS_SET_NDR() three times per compression (more in the overall push). As claims is now the primary use of the libndr compression code, this is a reasonable tradeoff compared to the other callers who have more static algorithm selections. By removing the struct ndr_compression_state **state argument from ndr_push_compression_state_init() we make clear that the ndr->cstate belongs to this NDR context, and this context alone. Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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libndr compression support
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Copyright (C) Stefan Metzmacher 2005
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Copyright (C) Matthieu Suiche 2008
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LIBRPC_NDR_NDR_COMPRESSION_H__
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#define __LIBRPC_NDR_NDR_COMPRESSION_H__
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#undef _PRINTF_ATTRIBUTE
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#define _PRINTF_ATTRIBUTE(a1, a2) PRINTF_ATTRIBUTE(a1, a2)
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/* this file contains prototypes for functions that are private
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* to this subsystem or library. These functions should not be
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* used outside this particular subsystem! */
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/* The following definitions come from librpc/ndr/ndr_compression.c */
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enum ndr_err_code ndr_pull_compression_start(struct ndr_pull *subndr,
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struct ndr_pull **_comndr,
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enum ndr_compression_alg compression_alg,
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ssize_t decompressed_len,
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ssize_t compressed_len);
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enum ndr_err_code ndr_pull_compression_end(struct ndr_pull *subndr,
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struct ndr_pull *comndr,
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enum ndr_compression_alg compression_alg,
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ssize_t decompressed_len);
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enum ndr_err_code ndr_push_compression_start(struct ndr_push *subndr,
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struct ndr_push **_uncomndr);
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enum ndr_err_code ndr_push_compression_end(struct ndr_push *subndr,
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struct ndr_push *uncomndr);
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enum ndr_err_code ndr_pull_compression_state_init(struct ndr_pull *ndr,
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enum ndr_compression_alg compression_alg,
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struct ndr_compression_state **state);
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void ndr_pull_compression_state_free(struct ndr_compression_state *state);
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enum ndr_err_code ndr_push_compression_state_init(struct ndr_push *ndr,
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enum ndr_compression_alg compression_alg);
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#undef _PRINTF_ATTRIBUTE
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#define _PRINTF_ATTRIBUTE(a1, a2)
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#endif /* __LIBRPC_NDR_NDR_COMPRESSION_H__ */
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