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The ro_anonymous_file is an abstraction around anonymous read-only files.
os_ro_anonymous_file_create creates such a file with the contents passed
in data. Subsequent calls to os_ro_anonymous_file_get_fd return a fd
that's ready to be send over the socket.
When mapmode is RO_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. RO_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.
See also:
weston commit
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| .. | ||
| cairo-util.c | ||
| cairo-util.h | ||
| config-parser.c | ||
| fd-util.h | ||
| file-util.c | ||
| file-util.h | ||
| frame.c | ||
| helpers.h | ||
| image-loader.c | ||
| image-loader.h | ||
| matrix.c | ||
| meson.build | ||
| option-parser.c | ||
| os-compatibility.c | ||
| os-compatibility.h | ||
| platform.h | ||
| string-helpers.h | ||
| timespec-util.h | ||
| weston-egl-ext.h | ||
| xalloc.c | ||
| xalloc.h | ||