Support the non-Darwin track flag for processes.

mat813 · Feb 8, 2010 · 2410986 · 2410986
1 parent 2ad9b16
commit 2410986
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/lib/rb-kqueue/native/flags.rb b/lib/rb-kqueue/native/flags.rb
@@ -54,6 +54,9 @@ module Flags
       NOTE_PROC_EXEC = 0x20000000 # Process exec'd
       NOTE_PROC_REAP = 0x10000000 # Process reaped
       NOTE_PROC_SIGNAL = 0x08000000 # Received signal
+      NOTE_TRACK = 0x00000001 # follow across forks
+      NOTE_TRACKERR = 0x00000002 # could not track child
+      NOTE_CHILD = 0x00000004 # am a child process
 
 
       # Converts a list of flags to the bitmask that the C API expects.

diff --git a/lib/rb-kqueue/queue.rb b/lib/rb-kqueue/queue.rb
@@ -246,6 +246,14 @@ def watch_file(path, *flags, &callback)
     # : The process was reaped by the parent via `wait(2)` or similar.
     #   This is only supported under Darwin/OS X.
     #
+    # `:track`
+    # : Follow the process across `fork(2)` calls.
+    #   {Event#flags} for the parent process will contain `:fork`,
+    #   while {Event#flags} for the child process will contain `:child`.
+    #   If the system was unable to attach an event to the child process,
+    #   {Event#flags} will contain `:trackerr`.
+    #   This is not supported under Darwin/OS X.
+    #
     # @param pid [Fixnum] The id of the process.
     # @param flags [Array<Symbol>] Which events to watch for.
     # @yield [event] A block that will be run when the process changes.