Gave asynchronous operations approximate POSIX signal semantics. This

will enable us to cascade async operations, which is necessary in order to
properly support DNS.  (For example, an HTTP request may have to redirect
to a new location and will have to perform a new DNS lookup, so we can't
just rely on doing the name lookup at the time of parsing the initial
URL).

Anything other than HTTP is probably broken right now; I'll fix the others
up asap.

1 files changed, 10 insertions, 2 deletions

diff --git a/src/usr/dhcpmgmt.c b/src/usr/dhcpmgmt.c
index 6042f8b2..0e36d555 100644
--- a/src/usr/dhcpmgmt.c
+++ b/src/usr/dhcpmgmt.c
@@ -23,6 +23,7 @@
 #include <gpxe/dhcp.h>
 #include <gpxe/async.h>
 #include <gpxe/netdevice.h>
+#include <usr/ifmgmt.h>
 #include <usr/dhcpmgmt.h>
 
 /** @file
@@ -43,6 +44,7 @@ int dhcp ( struct net_device *netdev ) {
 	struct in_addr address = { htonl ( 0 ) };
 	struct in_addr netmask = { htonl ( 0 ) };
 	struct in_addr gateway = { INADDR_NONE };
+	struct async async;
 	int rc;
 
 	/* Check we can open the interface first */
@@ -60,8 +62,14 @@ int dhcp ( struct net_device *netdev ) {
 	printf ( "DHCP (%s %s)...", netdev->name, netdev_hwaddr ( netdev ) );
 	memset ( &dhcp, 0, sizeof ( dhcp ) );
 	dhcp.netdev = netdev;
-	if ( ( rc = async_wait ( start_dhcp ( &dhcp ) ) ) != 0 ) {
-		printf ( "failed\n" );
+	async_init_orphan ( &async );
+	if ( ( rc = start_dhcp ( &dhcp, &async ) ) != 0 ) {
+		printf ( "could not start (%s)\n", strerror ( rc ) );
+		return rc;
+	}
+	async_wait ( &async, &rc, 1 );	
+	if ( rc != 0 ) {
+		printf ( "failed (%s)\n", strerror ( rc ) );
 		return rc;
 	}
 	printf ( "done\n" );