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[gapil.git] / listati / Signal.c

diff --git a/listati/Signal.c b/listati/Signal.c
new file mode 100644 (file)
index 0000000..e2d617b
--- /dev/null
+++ b/listati/Signal.c
@@ -0,0 +1,16 @@
+typedef void SigFunc(int);
+inline SigFunc * Signal(int signo, SigFunc *func) 
+{
+    struct sigaction new_handl, old_handl;
+    new_handl.sa_handler = func;
+    /* clear signal mask: no signal blocked during execution of func */
+    if (sigemptyset(&new_handl.sa_mask)!=0){        /* initialize signal set */
+        return SIG_ERR;
+    }
+    new_handl.sa_flags=0;                             /* init to 0 all flags */
+    /* change action for signo signal */
+    if (sigaction(signo, &new_handl, &old_handl)){ 
+        return SIG_ERR;
+    }
+    return (old_handl.sa_handler);
+}