diff options
| -rw-r--r-- | django/utils/autoreload.py | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/django/utils/autoreload.py b/django/utils/autoreload.py index ba98530f1b..6816403cc7 100644 --- a/django/utils/autoreload.py +++ b/django/utils/autoreload.py @@ -65,6 +65,16 @@ try: except ImportError: pass +try: + import select + select.kevent, select.kqueue + USE_KQUEUE = True + + import resource + NOFILES_SOFT, NOFILES_HARD = resource.getrlimit(resource.RLIMIT_NOFILE) +except AttributeError: + USE_KQUEUE = False + RUN_RELOADER = True _mtimes = {} @@ -119,6 +129,31 @@ def inotify_code_changed(): # If we are here the code must have changed. return True +def kqueue_code_changed(): + """ + Checks for changed code using kqueue. After being called + it blocks until a change event has been fired. + """ + # Maximum number of open file descriptors is typically too low (256). + filenames = list(gen_filenames()) + resource.setrlimit(resource.RLIMIT_NOFILE, + (NOFILES_SOFT + len(filenames), NOFILES_HARD)) + + kqueue = select.kqueue() + fds = [open(filename) for filename in filenames] + + _filter = select.KQ_FILTER_VNODE + flags = select.KQ_EV_ADD + fflags = select.KQ_NOTE_DELETE | select.KQ_NOTE_WRITE | select.KQ_NOTE_RENAME + kevents = [select.kevent(fd, _filter, flags, fflags) for fd in fds] + kqueue.control(kevents, 1) + + for fd in fds: + fd.close() + kqueue.close() + + return True + def code_changed(): global _mtimes, _win for filename in gen_filenames(): @@ -178,6 +213,8 @@ def reloader_thread(): ensure_echo_on() if USE_INOTIFY: fn = inotify_code_changed + elif USE_KQUEUE: + fn = kqueue_code_changed else: fn = code_changed while RUN_RELOADER: |