Changeset adee9cc for global.c

Timestamp:

May 4, 2009, 9:55:11 PM (15 years ago)

Author:

Nelson Elhage <nelhage@mit.edu>

Branches:

master, release-1.10, release-1.4, release-1.5, release-1.6, release-1.7, release-1.8, release-1.9

Children:

d6bd3f1

Parents:

790ab12

git-author:

Nelson Elhage <nelhage@mit.edu> (05/03/09 15:31:50)

git-committer:

Nelson Elhage <nelhage@mit.edu> (05/04/09 21:55:11)

Message:

Enable signals, and add an interrupted flag.

File:

• global.c (modified) (2 diffs)

global.c

@@ -116 +116 @@
   owl_list_create(&(g->dispatchlist));
   g->timerlist = NULL;
+  g->interrupted = FALSE;
 }
 
@@ -934 +935 @@
   return &(g->timerlist);
 }
+
+/*
+ * Note: This must be called with SIGINT masked in order to avoid
+ * races. This will unset the interrupt flag and unblock SIGINT before
+ * returning.
+ */
+int owl_global_is_interrupted(owl_global *g) {
+  int interrupted;
+  sigset_t intr;
+  sigemptyset(&intr);
+  sigaddset(&intr, SIGINT);
+
+  interrupted = g->interrupted;
+  g->interrupted = 0;
+
+  sigprocmask(SIG_UNBLOCK, &intr, NULL);
+  return interrupted;
+}
+
+void owl_global_set_interrupted(owl_global *g) {
+  g->interrupted = 1;
+}
+
+void owl_global_unset_interrupted(owl_global *g) {
+  g->interrupted = 0;
+}