summaryrefslogtreecommitdiff
path: root/vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb')
-rw-r--r--vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb60
1 files changed, 60 insertions, 0 deletions
diff --git a/vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb b/vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb
new file mode 100644
index 0000000..018d78c
--- /dev/null
+++ b/vendor/bundle/ruby/3.4.0/gems/ffi-1.17.2-arm64-darwin/samples/inotify.rb
@@ -0,0 +1,60 @@
+require 'ffi'
+
+module Inotify
+ extend FFI::Library
+ ffi_lib FFI::Library::LIBC
+ class Event < FFI::Struct
+ layout \
+ :wd, :int,
+ :mask, :uint,
+ :cookie, :uint,
+ :len, :uint
+ end
+ attach_function :init, :inotify_init, [ ], :int
+ attach_function :add_watch, :inotify_add_watch, [ :int, :string, :uint ], :int
+ attach_function :rm_watch, :inotify_rm_watch, [ :int, :uint ], :int
+ attach_function :read, [ :int, :buffer_out, :uint ], :int
+ IN_ACCESS=0x00000001
+ IN_MODIFY=0x00000002
+ IN_ATTRIB=0x00000004
+ IN_CLOSE_WRITE=0x00000008
+ IN_CLOSE_NOWRITE=0x00000010
+ IN_CLOSE=(IN_CLOSE_WRITE | IN_CLOSE_NOWRITE)
+ IN_OPEN=0x00000020
+ IN_MOVED_FROM=0x00000040
+ IN_MOVED_TO=0x00000080
+ IN_MOVE= (IN_MOVED_FROM | IN_MOVED_TO)
+ IN_CREATE=0x00000100
+ IN_DELETE=0x00000200
+ IN_DELETE_SELF=0x00000400
+ IN_MOVE_SELF=0x00000800
+ # Events sent by the kernel.
+ IN_UNMOUNT=0x00002000
+ IN_Q_OVERFLOW=0x00004000
+ IN_IGNORED=0x00008000
+ IN_ONLYDIR=0x01000000
+ IN_DONT_FOLLOW=0x02000000
+ IN_MASK_ADD=0x20000000
+ IN_ISDIR=0x40000000
+ IN_ONESHOT=0x80000000
+ IN_ALL_EVENTS=(IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE \
+ | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM \
+ | IN_MOVED_TO | IN_CREATE | IN_DELETE \
+ | IN_DELETE_SELF | IN_MOVE_SELF)
+
+end
+if $0 == __FILE__
+ fd = Inotify.init
+ puts "fd=#{fd}"
+ wd = Inotify.add_watch(fd, "/tmp/", Inotify::IN_ALL_EVENTS)
+ fp = FFI::IO.for_fd(fd)
+ puts "wfp=#{fp}"
+ while true
+ buf = FFI::Buffer.alloc_out(Inotify::Event.size + 4096, 1, false)
+ ev = Inotify::Event.new buf
+ ready = IO.select([ fp ], nil, nil, nil)
+ n = Inotify.read(fd, buf, buf.total)
+ puts "Read #{n} bytes from inotify fd"
+ puts "event.wd=#{ev[:wd]} mask=#{ev[:mask]} len=#{ev[:len]} name=#{ev[:len] > 0 ? buf.get_string(16) : 'unknown'}"
+ end
+end