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author | Yonit Halperin <yhalperi@redhat.com> | 2010-06-20 15:24:49 +0300 |
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committer | Alexander Larsson <alexl@redhat.com> | 2010-06-21 15:05:37 +0200 |
commit | 25bb38f643af6f0015df369a22176275b6ebfae0 (patch) | |
tree | 5bfc75812c6ba89086d1ab8782552de806fd53bb /server/zlib_encoder.h | |
parent | cfc1e95bda0e150b3de225c3572bb1004dad070e (diff) | |
download | spice-25bb38f643af6f0015df369a22176275b6ebfae0.tar.gz spice-25bb38f643af6f0015df369a22176275b6ebfae0.tar.xz spice-25bb38f643af6f0015df369a22176275b6ebfae0.zip |
applying zlib compression over glz on WAN connection
Diffstat (limited to 'server/zlib_encoder.h')
-rw-r--r-- | server/zlib_encoder.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/server/zlib_encoder.h b/server/zlib_encoder.h new file mode 100644 index 00000000..0620fc7b --- /dev/null +++ b/server/zlib_encoder.h @@ -0,0 +1,47 @@ +/* + Copyright (C) 2009 Red Hat, Inc. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * 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 HOLDER 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. +*/ +#ifndef _H_ZLIB_ENCODER +#define _H_ZLIB_ENCODER + +typedef struct ZlibEncoder ZlibEncoder; +typedef struct ZlibEncoderUsrContext ZlibEncoderUsrContext; + +struct ZlibEncoderUsrContext { + int (*more_space)(ZlibEncoderUsrContext *usr, uint8_t **io_ptr); + int (*more_input)(ZlibEncoderUsrContext *usr, uint8_t **input); +}; + +ZlibEncoder* zlib_encoder_create(ZlibEncoderUsrContext *usr, int level); +void zlib_encoder_destroy(ZlibEncoder *encoder); + +/* returns the total size of the encoded data */ +int zlib_encode(ZlibEncoder *zlib, int level, int input_size, + uint8_t *io_ptr, unsigned int num_io_bytes); +#endif |