Fix [2151183]: SIGHUP with the range view annotator active maintained

the annotated colours when saving. Fixed by adding the ability to store
arbitrary exit hooks to be executed on (unusual) shutdown; for now they're
executed FIFO, but it should probably be LIFO with a stack. Anyway the
only thing that uses this now is the range view annotator. Oh, and it
only works if you're using libunix.cc.


git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8999 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 6 insertions, 0 deletions

diff --git a/crawl-ref/source/libunix.cc b/crawl-ref/source/libunix.cc
index e1d3b71df4..c259c45146 100644
--- a/crawl-ref/source/libunix.cc
+++ b/crawl-ref/source/libunix.cc
@@ -335,6 +335,12 @@ static void handle_hangup(int)
     crawl_state.saving_game = true;
     if (crawl_state.need_save)
     {
+        // Clean up all the hooks.
+        for (unsigned i = 0; i < crawl_state.exit_hooks.size(); ++i)
+            crawl_state.exit_hooks[i]->restore_state();
+
+        crawl_state.exit_hooks.clear();
+
         // save_game(true) also exits, saving us the trouble of doing so.
         save_game(true);
     }