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| author | Jonas Dreßler <verdre@v0yd.nl> | 2020-01-17 23:43:24 +0100 |
|---|---|---|
| committer | Jonas Dreßler <verdre@v0yd.nl> | 2020-04-21 17:52:08 +0200 |
| commit | 551a57ed7f2b132a8dca0f1889a24196debb43cc (patch) | |
| tree | 7445a43d7e6f067361b0b6d92938bee8c72bcd30 /config.h.meson | |
| parent | b7366b5b534cbea38fed58ac435f848111924713 (diff) | |
| download | mutter-551a57ed7f2b132a8dca0f1889a24196debb43cc.tar.gz | |
Add read-only anonymous file abstraction MetaAnonymousFile
Add MetaAnonymousFile, an abstraction around anonymous read-only files.
Files can be created by calling meta_anonymous_file_new(), passing the
data of the file. Subsequent calls to meta_anonymous_file_open_fd()
return a fd that's ready to be sent over the socket.
When mapmode is META_ANONYMOUS_FILE_MAPMODE_PRIVATE the fd is only
guaranteed to be mmap-able readonly with MAP_PRIVATE but does not
require duplicating the file for each resource when memfd_create is
available. META_ANONYMOUS_FILE_MAPMODE_SHARED may be used when the
client must be able to map the file with MAP_SHARED but it also means
that the file has to be duplicated even when memfd_create is available.
Pretty much all of this code was written for weston by Sebastian Wick,
see https://gitlab.freedesktop.org/wayland/weston/merge_requests/240.
Co-authored-by: Sebastian Wick <sebastian@sebastianwick.net>
https://gitlab.gnome.org/GNOME/mutter/merge_requests/1012
Diffstat (limited to 'config.h.meson')
| -rw-r--r-- | config.h.meson | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/config.h.meson b/config.h.meson index 0edff4d57..f5c0e71a6 100644 --- a/config.h.meson +++ b/config.h.meson @@ -70,3 +70,12 @@ /* Whether Xwayland has -initfd option */ #mesondefine HAVE_XWAYLAND_INITFD + +/* Whether the mkostemp function exists */ +#mesondefine HAVE_MKOSTEMP + +/* Whether the posix_fallocate function exists */ +#mesondefine HAVE_POSIX_FALLOCATE + +/* Whether the memfd_create function exists */ +#mesondefine HAVE_MEMFD_CREATE |