173 lines
3.7 KiB
C++
173 lines
3.7 KiB
C++
/*
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* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _pbd_archive_h_
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#define _pbd_archive_h_
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#include <atomic>
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#include <pthread.h>
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#include "pbd/signals.h"
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#ifndef LIBPBD_API
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#include "pbd/libpbd_visibility.h"
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#endif
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namespace PBD {
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class LIBPBD_API FileArchive
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{
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public:
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FileArchive (const std::string& url);
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~FileArchive ();
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int inflate (const std::string& destdir);
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std::vector<std::string> contents ();
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int make_local (const std::string& destdir);
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std::string next_file_name ();
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int extract_current_file (const std::string& destpath);
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/* these are mapped to libarchive's lzmaz
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* compression level 0..9
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*/
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enum CompressionLevel {
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CompressNone = -1,
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CompressFast = 0,
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CompressGood = 6
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};
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int create (const std::string& srcdir, CompressionLevel compression_level = CompressGood);
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int create (const std::map <std::string, std::string>& filemap, CompressionLevel compression_level = CompressGood);
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PBD::Signal2<void, size_t, size_t> progress; // TODO
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void require_progress ();
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struct MemPipe {
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public:
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MemPipe ()
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: data (NULL)
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, progress (0)
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{
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pthread_mutex_init (&_lock, NULL);
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pthread_cond_init (&_ready, NULL);
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reset ();
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}
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~MemPipe ()
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{
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lock ();
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free (data);
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unlock ();
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pthread_mutex_destroy (&_lock);
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pthread_cond_destroy (&_ready);
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}
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void reset ()
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{
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lock ();
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free (data);
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data = 0;
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size = 0;
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done = false;
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processed = 0;
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length = -1;
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unlock ();
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}
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void lock () { pthread_mutex_lock (&_lock); }
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void unlock () { pthread_mutex_unlock (&_lock); }
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void signal () { pthread_cond_signal (&_ready); }
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void wait () { pthread_cond_wait (&_ready, &_lock); }
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uint8_t buf[8192];
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uint8_t* data;
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size_t size;
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bool done;
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size_t processed;
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size_t length;
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FileArchive* progress;
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private:
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pthread_mutex_t _lock;
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pthread_cond_t _ready;
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};
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struct Request {
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public:
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Request (const std::string& u)
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{
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if (u.size () > 0) {
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url = strdup (u.c_str());
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} else {
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url = NULL;
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}
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}
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~Request ()
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{
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free (url);
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}
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bool is_remote () const
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{
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if (!strncmp (url, "https://", 8) || !strncmp (url, "http://", 7) || !strncmp (url, "ftp://", 6)) {
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return true;
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}
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return false;
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}
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char* url;
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MemPipe mp;
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};
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private:
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int process_file ();
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int process_url ();
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std::vector<std::string> contents_url ();
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std::vector<std::string> contents_file ();
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int extract_url ();
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int extract_file ();
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int do_extract (struct archive* a);
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std::vector<std::string> get_contents (struct archive *a);
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bool is_url ();
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struct archive* setup_file_archive ();
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Request _req;
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pthread_t _tid;
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struct archive_entry* _current_entry;
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struct archive* _archive;
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std::string fetch (const std::string & url, const std::string& destdir) const;
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};
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} /* namespace */
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#endif // _reallocpool_h_
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