Incrementing the reference count before invoking the event handlers and
decrementing it thereafter allows io_destroy to be safely called from within
the event callbacks. This patch achieves that.
---
src/shared/io-mainloop.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/shared/io-mainloop.c b/src/shared/io-mainloop.c
index 3e33d88..1563ce5 100644
--- a/src/shared/io-mainloop.c
+++ b/src/shared/io-mainloop.c
@@ -92,12 +92,15 @@ static void io_callback(int fd, uint32_t events, void *user_data)
{
struct io *io = user_data;
+ io_ref(io);
+
if ((events & (EPOLLRDHUP | EPOLLHUP | EPOLLERR))) {
io->read_callback = NULL;
io->write_callback = NULL;
if (!io->disconnect_callback) {
mainloop_remove_fd(io->fd);
+ io_unref(io);
return;
}
@@ -144,6 +147,8 @@ static void io_callback(int fd, uint32_t events, void *user_data)
mainloop_modify_fd(io->fd, io->events);
}
}
+
+ io_unref(io);
}
struct io *io_new(int fd)
--
2.1.0.rc2.206.gedb03e5
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