xnu-792.22.5.tar.gz

[apple/xnu.git] / bsd / netinet / udp_usrreq.c

diff --git a/bsd/netinet/udp_usrreq.c b/bsd/netinet/udp_usrreq.c
index 3ecfaee90a435a7d2503312ebcceb567aeffa461..8d3f8873512bfe6f8c9b95ffaf5d4adefce165db 100644 (file)
--- a/bsd/netinet/udp_usrreq.c
+++ b/bsd/netinet/udp_usrreq.c
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995
@@ -199,12 +205,10 @@ udp_init()
         * allocate lock group attribute and group for udp pcb mutexes
         */
        pcbinfo->mtx_grp_attr = lck_grp_attr_alloc_init();
-       lck_grp_attr_setdefault(pcbinfo->mtx_grp_attr);
 
        pcbinfo->mtx_grp = lck_grp_alloc_init("udppcb", pcbinfo->mtx_grp_attr);
                
        pcbinfo->mtx_attr = lck_attr_alloc_init();
-       lck_attr_setdefault(pcbinfo->mtx_attr);
 
        if ((pcbinfo->mtx = lck_rw_alloc_init(pcbinfo->mtx_grp, pcbinfo->mtx_attr)) == NULL)
                return; /* pretty much dead if this fails... */
@@ -1222,27 +1226,22 @@ udp_lock(so, refcount, debug)
        int refcount, debug;
 {
        int lr_saved;
-#ifdef __ppc__
-       if (debug == 0) {
-               __asm__ volatile("mflr %0" : "=r" (lr_saved));
-       }
+       if (debug == 0) 
+               lr_saved = (unsigned int) __builtin_return_address(0);
        else lr_saved = debug;
-#endif
 
        if (so->so_pcb) {
                lck_mtx_assert(((struct inpcb *)so->so_pcb)->inpcb_mtx, LCK_MTX_ASSERT_NOTOWNED);
                lck_mtx_lock(((struct inpcb *)so->so_pcb)->inpcb_mtx);
        }
-       else {
+       else 
                panic("udp_lock: so=%x NO PCB! lr=%x\n", so, lr_saved);
-               lck_mtx_assert(so->so_proto->pr_domain->dom_mtx, LCK_MTX_ASSERT_NOTOWNED);
-               lck_mtx_lock(so->so_proto->pr_domain->dom_mtx);
-       }
 
        if (refcount) 
                so->so_usecount++;
 
-       so->reserved3= lr_saved;
+       so->lock_lr[so->next_lock_lr] = (void *)lr_saved;
+       so->next_lock_lr = (so->next_lock_lr+1) % SO_LCKDBG_MAX;
        return (0);
 }
 
@@ -1255,12 +1254,11 @@ udp_unlock(so, refcount, debug)
        int lr_saved;
        struct inpcb *inp = sotoinpcb(so);
        struct inpcbinfo *pcbinfo       = &udbinfo;
-#ifdef __ppc__
-       if (debug == 0) {
-               __asm__ volatile("mflr %0" : "=r" (lr_saved));
-       }
+
+       if (debug == 0) 
+               lr_saved = (unsigned int) __builtin_return_address(0);
        else lr_saved = debug;
-#endif
+
        if (refcount) {
                so->so_usecount--;
 #if 0
@@ -1273,18 +1271,16 @@ udp_unlock(so, refcount, debug)
                }
 #endif
        }
-       if (so->so_pcb == NULL) {
+       if (so->so_pcb == NULL) 
                panic("udp_unlock: so=%x NO PCB! lr=%x\n", so, lr_saved);
-               lck_mtx_assert(so->so_proto->pr_domain->dom_mtx, LCK_MTX_ASSERT_OWNED);
-               lck_mtx_unlock(so->so_proto->pr_domain->dom_mtx);
-       }
        else {
                lck_mtx_assert(((struct inpcb *)so->so_pcb)->inpcb_mtx, LCK_MTX_ASSERT_OWNED);
+               so->unlock_lr[so->next_unlock_lr] = (void *)lr_saved;
+               so->next_unlock_lr = (so->next_unlock_lr+1) % SO_LCKDBG_MAX;
                lck_mtx_unlock(((struct inpcb *)so->so_pcb)->inpcb_mtx);
        }
 
 
-       so->reserved4 = lr_saved;
        return (0);
 }