xnu-792.12.6.tar.gz

[apple/xnu.git] / bsd / kern / sys_pipe.c

diff --git a/bsd/kern/sys_pipe.c b/bsd/kern/sys_pipe.c
index d9c75707c8d0d04dd6537b40dd45541611076fe7..a04ad0c8285f7c7b2ec5f0fa48cdff9c6005b883 100644 (file)
--- a/bsd/kern/sys_pipe.c
+++ b/bsd/kern/sys_pipe.c
@@ -19,23 +19,31 @@
 /*
  * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 /*
@@ -105,7 +113,6 @@
 #include <sys/signalvar.h>
 #include <sys/pipe.h>
 #include <sys/sysproto.h>
-#include <sys/proc_info.h>
 
 #include <bsm/audit_kernel.h>
 
@@ -261,12 +268,14 @@ pipeinit(void *dummy __unused)
         * allocate lock group attribute and group for pipe mutexes
         */
        pipe_mtx_grp_attr = lck_grp_attr_alloc_init();
+       //lck_grp_attr_setstat(pipe_mtx_grp_attr);
        pipe_mtx_grp = lck_grp_alloc_init("pipe", pipe_mtx_grp_attr);
 
        /*
         * allocate the lock attribute for pipe mutexes
         */
        pipe_mtx_attr = lck_attr_alloc_init();
+       //lck_attr_setdebug(pipe_mtx_attr);
 }
 
 
@@ -1409,7 +1418,7 @@ pipe_free_kmem(struct pipe *cpipe)
        if (cpipe->pipe_buffer.buffer != NULL) {
                if (cpipe->pipe_buffer.size > PIPE_SIZE)
                        OSAddAtomic(-1, (SInt32 *)&nbigpipe);
-               OSAddAtomic(-(cpipe->pipe_buffer.size), (SInt32 *)&amountpipekva);
+               OSAddAtomic(cpipe->pipe_buffer.size, (SInt32 *)&amountpipekva);
                OSAddAtomic(-1, (SInt32 *)&amountpipes);
 
                kmem_free(kernel_map, (vm_offset_t)cpipe->pipe_buffer.buffer,
@@ -1643,66 +1652,3 @@ filt_pipewrite(struct knote *kn, long hint)
        return (kn->kn_data >= ((kn->kn_sfflags & NOTE_LOWAT) ?
                                 kn->kn_sdata : PIPE_BUF));
 }
-
-int
-fill_pipeinfo(struct pipe * cpipe, struct pipe_info * pinfo)
-{
-#ifdef MAC
-        int error;
-#endif
-       struct timeval now;
-       struct stat * ub;
-
-       if (cpipe == NULL)
-               return (EBADF);
-#ifdef MAC
-       PIPE_LOCK(cpipe);
-       error = mac_check_pipe_stat(active_cred, cpipe);
-       PIPE_UNLOCK(cpipe);
-       if (error)
-               return (error);
-#endif
-       if (cpipe->pipe_buffer.buffer == 0) {
-               /*
-                * must be stat'ing the write fd
-                */
-               cpipe = cpipe->pipe_peer;
-
-               if (cpipe == NULL)
-                       return (EBADF);
-       }
-
-       ub = &pinfo->pipe_stat;
-
-       bzero(ub, sizeof(*ub));
-       ub->st_mode = S_IFIFO | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;
-       ub->st_blksize = cpipe->pipe_buffer.size;
-       ub->st_size = cpipe->pipe_buffer.cnt;
-       if (ub->st_blksize != 0);
-               ub->st_blocks = (ub->st_size + ub->st_blksize - 1) / ub->st_blksize;
-       ub->st_nlink = 1;
-
-       ub->st_uid = kauth_getuid();
-       ub->st_gid = kauth_getgid();
-
-       microtime(&now);
-       ub->st_atimespec.tv_sec  = now.tv_sec;
-       ub->st_atimespec.tv_nsec = now.tv_usec * 1000;
-
-       ub->st_mtimespec.tv_sec  = now.tv_sec;
-       ub->st_mtimespec.tv_nsec = now.tv_usec * 1000;
-
-       ub->st_ctimespec.tv_sec  = now.tv_sec;
-       ub->st_ctimespec.tv_nsec = now.tv_usec * 1000;
-
-       /*
-        * Left as 0: st_dev, st_ino, st_nlink, st_rdev, st_flags, st_gen, st_uid, st_gid.
-        * XXX (st_dev, st_ino) should be unique.
-        */
-
-       pinfo->pipe_handle = (uint64_t)((uintptr_t)cpipe);
-       pinfo->pipe_peerhandle = (uint64_t)((uintptr_t)(cpipe->pipe_peer));
-       pinfo->pipe_status = cpipe->pipe_state;
-       return (0);
-}
-