ce5a5789bb
In order to make it possible to e.g. unload an unused DRM device, we need to make sure that we don't keep the file descriptor open if we don't need it; otherwise we block anyone from unloading the corresponding module. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1828>
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/*
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* Copyright (C) 2021 Red Hat, Inc.
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_DEVICE_POOL_H
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#define META_DEVICE_POOL_H
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#include <glib-object.h>
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#include <stdint.h>
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typedef enum _MetaDeviceFileFlags
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{
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META_DEVICE_FILE_FLAG_NONE = 0,
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META_DEVICE_FILE_FLAG_TAKE_CONTROL = 1 << 0,
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META_DEVICE_FILE_FLAG_READ_ONLY = 1 << 1,
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} MetaDeviceFileFlags;
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typedef enum _MetaDeviceFileTags
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{
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META_DEVICE_FILE_TAG_KMS,
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META_DEVICE_FILE_N_TAGS,
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} MetaDeviceFileTags;
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typedef struct _MetaDeviceFile MetaDeviceFile;
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typedef struct _MetaDevicePool MetaDevicePool;
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int meta_device_file_get_fd (MetaDeviceFile *device_file);
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const char * meta_device_file_get_path (MetaDeviceFile *device_file);
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void meta_device_file_tag (MetaDeviceFile *device_file,
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MetaDeviceFileTags tag,
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uint32_t value);
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uint32_t meta_device_file_has_tag (MetaDeviceFile *device_file,
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MetaDeviceFileTags tag,
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uint32_t value);
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MetaDeviceFile * meta_device_file_acquire (MetaDeviceFile *file);
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void meta_device_file_release (MetaDeviceFile *device_file);
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MetaDevicePool * meta_device_file_get_pool (MetaDeviceFile *device_file);
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MetaDeviceFile * meta_device_pool_open (MetaDevicePool *pool,
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const char *path,
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MetaDeviceFileFlags flags,
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GError **error);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaDeviceFile, meta_device_file_release)
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#endif /* META_DEVICE_FILE_POOL_H */
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