--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/signals.c	Thu Mar 12 23:54:03 2009 +0200
@@ -0,0 +1,122 @@
+#define _GNU_SOURCE
+
+#include "signals.h"
+#include "log.h"
+
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <assert.h>
+
+struct signals {
+    /** The libevent base to use */
+    struct event_base *ev_base;
+    
+    /** Information about up to MAX_SIGNALS signals */
+    struct signal {
+        /** The event we use to handle the signal */
+        struct event *ev;
+
+    } sig_list[MAX_SIGNALS];
+    
+    /** Number of used sig_list slots */
+    int sig_count;
+};
+
+void signals_loopexit (int signal, short event, void *arg) 
+{
+    struct signals *signals = arg;
+
+    (void) event;
+
+    log_info("caught %s: exiting", strsignal(signal));
+    
+    if (event_base_loopexit(signals->ev_base, NULL))
+        FATAL("event_base_loopexit");
+}
+
+void signals_ignore (int signal, short event, void *arg)
+{
+    struct signals *signals = arg;
+    
+    (void) signal;
+    (void) event;
+    (void) arg;
+    (void) signals;
+    
+    /* ignore */
+}
+
+err_t signals_create (struct signals **signals_ptr, struct event_base *ev_base)
+{
+    struct signals *signals;
+
+    if ((signals = calloc(1, sizeof(*signals))) == NULL)
+        return ERR_CALLOC;
+    
+    // simple attributes
+    signals->ev_base = ev_base;
+
+    // done
+    *signals_ptr = signals;
+
+    return SUCCESS;
+}
+
+err_t signals_add (struct signals *signals, int sigval, void (*sig_handler)(evutil_socket_t, short, void *), void *arg) 
+{
+    struct signal *sig_info;
+    
+    // find our sig_info
+    assert(signals->sig_count < MAX_SIGNALS);
+    sig_info = signals->sig_list + (signals->sig_count++);
+    
+    // set up the libevent signal events
+    if ((sig_info->ev = evsignal_new(signals->ev_base, sigval, sig_handler, arg)) == NULL)
+        return ERR_EVENT_NEW;
+
+    if (evsignal_add(sig_info->ev, NULL))
+        return ERR_EVENT_ADD;
+
+    // ok
+    return SUCCESS;
+}
+
+struct signals *signals_default (struct event_base *ev_base) 
+{
+    struct signals *signals = NULL;
+    
+    // alloc signals
+    if (signals_create(&signals, ev_base))
+        return NULL;
+    
+    // add the set of default signals
+    if (    signals_add(signals,    SIGPIPE,    &signals_ignore,        signals)
+        ||  signals_add(signals,    SIGINT,     &signals_loopexit,      signals)
+    ) 
+        goto error;
+    
+    // ok
+    return signals;
+
+error:
+    if (signals)
+        signals_free(signals);
+
+    return NULL;
+}   
+
+void signals_free (struct signals *signals) 
+{
+    int i;
+    
+    // free all events
+    for (i = 0; i < signals->sig_count; i++) {
+        if (evsignal_del(signals->sig_list[i].ev))
+            log_warn("evsignal_del failed");
+    }
+    
+    // free the info itself
+    free(signals);
+}
+