From 462fcf4a8a43ba97269774112482d3ada784913c Mon Sep 17 00:00:00 2001 From: Ian Jackson Date: Tue, 22 May 2012 11:55:01 +0100 Subject: [PATCH] libxl: events: debugging output for fds Signed-off-by: Ian Jackson Committed-by: Ian Campbell --- tools/libxl/libxl_event.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/tools/libxl/libxl_event.c b/tools/libxl/libxl_event.c index 8d6fec8652..ed8ed5c0a6 100644 --- a/tools/libxl/libxl_event.c +++ b/tools/libxl/libxl_event.c @@ -70,6 +70,8 @@ int libxl__ev_fd_register(libxl__gc *gc, libxl__ev_fd *ev, CTX_LOCK; + DBG("ev_fd=%p register fd=%d events=%x", ev, fd, events); + rc = OSEVENT_HOOK(fd_register, fd, &ev->for_app_reg, events, ev); if (rc) goto out; @@ -93,6 +95,8 @@ int libxl__ev_fd_modify(libxl__gc *gc, libxl__ev_fd *ev, short events) CTX_LOCK; assert(libxl__ev_fd_isregistered(ev)); + DBG("ev_fd=%p modify fd=%d events=%x", ev, ev->fd, events); + rc = OSEVENT_HOOK(fd_modify, ev->fd, &ev->for_app_reg, events); if (rc) goto out; @@ -108,8 +112,12 @@ void libxl__ev_fd_deregister(libxl__gc *gc, libxl__ev_fd *ev) { CTX_LOCK; - if (!libxl__ev_fd_isregistered(ev)) + if (!libxl__ev_fd_isregistered(ev)) { + DBG("ev_fd=%p deregister unregistered",ev); goto out; + } + + DBG("ev_fd=%p deregister fd=%d", ev, ev->fd); OSEVENT_HOOK_VOID(fd_deregister, ev->fd, ev->for_app_reg); LIBXL_LIST_REMOVE(ev, entry); @@ -873,8 +881,11 @@ static void afterpoll_internal(libxl__egc *egc, libxl__poller *poller, continue; int revents = afterpoll_check_fd(poller,fds,nfds, efd->fd,efd->events); - if (revents) + if (revents) { + DBG("ev_fd=%p occurs fd=%d events=%x revents=%x", + efd, efd->fd, efd->events, revents); efd->func(egc, efd, efd->fd, efd->events, revents); + } } if (afterpoll_check_fd(poller,fds,nfds, poller->wakeup_pipe[0],POLLIN)) { -- 2.30.2