xnu-792.24.17.tar.gz

[apple/xnu.git] / bsd / netat / atp_alloc.c

diff --git a/bsd/netat/atp_alloc.c b/bsd/netat/atp_alloc.c
index 6ff87fe503f485f8d3ac89a747097603a990f1e4..98ebd3d46dacd416e79cbd81417f8b860702e111 100644 (file)
--- a/bsd/netat/atp_alloc.c
+++ b/bsd/netat/atp_alloc.c
@@ -1,29 +1,23 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_HEADER_START@
  * 
- * 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.
+ * 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.
  * 
- * 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
+ * This 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_HEADER_END@
  */
 /*    Modified for MP, 1996 by Tuyen Nguyen */
 /*
@@ -57,23 +51,28 @@
 #define TRPS_PER_BLK 16
 
 gbuf_t *atp_resource_m = 0;
+extern atlock_t atpgen_lock;
 extern caddr_t atp_free_cluster_list;
 extern void atp_delete_free_clusters();
 
 struct atp_trans *atp_trans_alloc(atp)
 struct  atp_state *atp;
 {
+       int s;
        int i;
        gbuf_t *m;
        register struct atp_trans *trp, *trp_array;
 
+       ATDISABLE(s, atpgen_lock);
        if (atp_trans_free_list == 0) {
+               ATENABLE(s, atpgen_lock);
                if ((m = gbuf_alloc(TRPS_PER_BLK*sizeof(struct atp_trans),PRI_HI)) == 0)
                        return (struct atp_trans *)0;
                bzero(gbuf_rptr(m), TRPS_PER_BLK*sizeof(struct atp_trans));
                trp_array = (struct atp_trans *)gbuf_rptr(m);
                for (i=0; i < TRPS_PER_BLK-1; i++)
                        trp_array[i].tr_list.next = (struct atp_trans *)&trp_array[i+1];
+               ATDISABLE(s, atpgen_lock);
                gbuf_cont(m) = atp_resource_m;
                atp_resource_m = m;
                trp_array[i].tr_list.next = atp_trans_free_list;
@@ -82,9 +81,11 @@ struct  atp_state *atp;
 
        trp = atp_trans_free_list;
        atp_trans_free_list = trp->tr_list.next;
+       ATENABLE(s, atpgen_lock);
        trp->tr_queue = atp;
        trp->tr_state = TRANS_TIMEOUT;
        trp->tr_local_node = 0;
+       ATLOCKINIT(trp->tr_lock);
        ATEVENTINIT(trp->tr_event);
 
        dPrintf(D_M_ATP_LOW, D_L_TRACE,
@@ -101,10 +102,13 @@ struct  atp_state *atp;
 void atp_trans_free(trp)
 register struct atp_trans *trp;
 {
+       int s;
 
+       ATDISABLE(s, atpgen_lock);
        trp->tr_queue = 0;
        trp->tr_list.next = atp_trans_free_list;
        atp_trans_free_list = trp;
+       ATENABLE(s, atpgen_lock);
 }
 
 /*
@@ -117,13 +121,16 @@ struct atp_rcb *atp_rcb_alloc(atp)
 struct  atp_state *atp;
 {
        register struct atp_rcb *rcbp;
+       int s;
 
+       ATDISABLE(s, atpgen_lock);
        if ((rcbp = atp_rcb_free_list) != NULL) {
                atp_rcb_free_list = rcbp->rc_list.next;
                rcbp->rc_queue = atp;
                rcbp->rc_pktcnt = 0;
                rcbp->rc_local_node = 0;
        }
+       ATENABLE(s, atpgen_lock);
        dPrintf(D_M_ATP_LOW, D_L_TRACE,
                ("atp_rcb_alloc: allocated rcbp 0x%x\n", (u_int) rcbp));
        return(rcbp);
@@ -140,11 +147,14 @@ register struct atp_rcb *rcbp;
        register struct atp_state *atp;
        register int i;
        register int rc_state;
+       int s;
 
        dPrintf(D_M_ATP_LOW, D_L_TRACE,
                ("atp_rcb_free: freeing rcbp 0x%x\n", (u_int) rcbp));
+       ATDISABLE(s, atpgen_lock);
        atp = rcbp->rc_queue;
        if ((rc_state = rcbp->rc_state) == -1) {
+               ATENABLE(s, atpgen_lock);
                dPrintf(D_M_ATP, D_L_WARNING,
                        ("atp_rcb_free(%d): tid=%d,loc=%d,rem=%d\n",
                        0, rcbp->rc_tid,
@@ -185,4 +195,5 @@ register struct atp_rcb *rcbp;
        }
        rcbp->rc_list.next = atp_rcb_free_list;
        atp_rcb_free_list = rcbp;
+       ATENABLE(s, atpgen_lock);
 }