Explicitly delete can fds in CanLogger

Signed-off-by: Maxwell Henderson <mxwhenderson@gmail.com>
Change-Id: I1a80fcca8e226dcfa010369a2d8cf68d8bfad1ce
diff --git a/frc971/can_logger/can_logger.cc b/frc971/can_logger/can_logger.cc
index d7c2df7..cfc3dd8 100644
--- a/frc971/can_logger/can_logger.cc
+++ b/frc971/can_logger/can_logger.cc
@@ -5,10 +5,11 @@
 CanLogger::CanLogger(aos::ShmEventLoop *event_loop,
                      std::string_view channel_name,
                      std::string_view interface_name)
-    : fd_(socket(PF_CAN, SOCK_RAW | SOCK_NONBLOCK, CAN_RAW)),
-      frames_sender_(event_loop->MakeSender<CanFrame>(channel_name)) {
+    : shm_event_loop_(event_loop),
+      fd_(socket(PF_CAN, SOCK_RAW | SOCK_NONBLOCK, CAN_RAW)),
+      frames_sender_(shm_event_loop_->MakeSender<CanFrame>(channel_name)) {
   // TOOD(max): Figure out a proper priority
-  event_loop->SetRuntimeRealtimePriority(10);
+  shm_event_loop_->SetRuntimeRealtimePriority(10);
   struct ifreq ifr;
   strcpy(ifr.ifr_name, interface_name.data());
   PCHECK(ioctl(fd_.get(), SIOCGIFINDEX, &ifr) == 0)
@@ -34,7 +35,7 @@
   CHECK_EQ(opt_size, sizeof(recieve_buffer_size));
   VLOG(0) << "CAN recieve bufffer is " << recieve_buffer_size << " bytes large";
 
-  event_loop->epoll()->OnReadable(fd_.get(), [this]() { Poll(); });
+  shm_event_loop_->epoll()->OnReadable(fd_.get(), [this]() { Poll(); });
 }
 
 void CanLogger::Poll() {