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MetaSelectionSourceMemory currently uses GBytes for its underlying data. This can cause memory overhead when large items, such as HD images, are stored in the clipboard. This commit changes the underlying data structure to a MetaAnonymousFile object, which writes to memfd instead of heap. When reading, MetaSelectionSourceMemory will create a Gio.UnixInputStream from the file descriptor generated by MetaAnonymousFile. We subclass the UnixInputStream as MetaUnixInputStream, to override the stream's close_fn function so that it invokes meta_anonymous_file_close_fd when the stream terminates. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3551>
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/*
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* Copyright (C) 2018 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#pragma once
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#include "meta/meta-selection-source.h"
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#define META_TYPE_SELECTION_SOURCE_MEMORY (meta_selection_source_memory_get_type ())
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META_EXPORT
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G_DECLARE_FINAL_TYPE (MetaSelectionSourceMemory,
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meta_selection_source_memory,
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META, SELECTION_SOURCE_MEMORY,
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MetaSelectionSource)
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META_EXPORT
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MetaSelectionSource * meta_selection_source_memory_new (const char *mimetype,
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GBytes *content,
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GError **error);
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