mirror of https://github.com/tstack/lnav
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/**
|
|
* Copyright (c) 2021, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* 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 Timothy Stack 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @file lnav.gzip.hh
|
|
*/
|
|
|
|
#ifndef lnav_gzip_hh
|
|
#define lnav_gzip_hh
|
|
|
|
#include <string>
|
|
|
|
#include <sys/time.h>
|
|
|
|
#include "auto_mem.hh"
|
|
#include "result.h"
|
|
|
|
namespace lnav {
|
|
namespace gzip {
|
|
|
|
struct header {
|
|
timeval h_mtime{};
|
|
auto_buffer h_extra{auto_buffer::alloc(0)};
|
|
std::string h_name;
|
|
std::string h_comment;
|
|
|
|
bool empty() const
|
|
{
|
|
return this->h_mtime.tv_sec == 0 && this->h_extra.empty()
|
|
&& this->h_name.empty() && this->h_comment.empty();
|
|
}
|
|
};
|
|
|
|
bool is_gzipped(const char* buffer, size_t len);
|
|
|
|
Result<auto_buffer, std::string> compress(const void* input, size_t len);
|
|
|
|
Result<auto_buffer, std::string> uncompress(const std::string& src,
|
|
const void* buffer,
|
|
size_t size);
|
|
|
|
} // namespace gzip
|
|
} // namespace lnav
|
|
|
|
#endif
|