Switch from cthreads to pthreads

Makefiles, headers, types, macros and function calls are renamed where
appropriate.

Most of this work was done by Barry deFreese and Thomas DiModica.

* auth/Makefile: Switch from cthreads to pthreads.
* auth/auth.c: Likewise.
* boot/Makefile: Likewise.
* boot/boot.c: Likewise.
* boot/ux.c: Likewise.
* console-client/Makefile: Likewise.
* console-client/console.c: Likewise.
* console-client/driver.c: Likewise.
* console-client/driver.h: Likewise.
* console-client/generic-speaker.c: Likewise.
* console-client/kbd-repeat.c: Likewise.
* console-client/ncursesw.c: Likewise.
* console-client/pc-kbd.c: Likewise.
* console-client/pc-mouse.c: Likewise.
* console-client/timer.c: Likewise.
* console-client/trans.c: Likewise.
* console-client/vga.c: Likewise.
* console/Makefile: Likewise.
* console/console.c: Likewise.
* console/display.c: Likewise.
* console/input.c: Likewise.
* console/pager.c: Likewise.
* defpager/backing.c: Likewise.
* exec/Makefile: Likewise.
* exec/exec.c: Likewise.
* exec/hashexec.c: Likewise.
* exec/priv.h: Likewise.
* ext2fs/Makefile: Likewise.
* ext2fs/balloc.c: Likewise.
* ext2fs/dir.c: Likewise.
* ext2fs/ext2fs.c: Likewise.
* ext2fs/ext2fs.h: Likewise.
* ext2fs/ialloc.c: Likewise.
* ext2fs/inode.c: Likewise.
* ext2fs/msg.c: Likewise.
* ext2fs/pager.c: Likewise.
* ext2fs/pokel.c: Likewise.
* ext2fs/storeinfo.c: Likewise.
* ext2fs/truncate.c: Likewise.
* fatfs/Makefile: Likewise.
* fatfs/dir.c: Likewise.
* fatfs/fat.c: Likewise.
* fatfs/fatfs.h: Likewise.
* fatfs/inode.c: Likewise.
* fatfs/main.c: Likewise.
* fatfs/pager.c: Likewise.
* fatfs/virt-inode.c: Likewise.
* ftpfs/Makefile: Likewise.
* ftpfs/ccache.c: Likewise.
* ftpfs/ccache.h: Likewise.
* ftpfs/conn.c: Likewise.
* ftpfs/dir.c: Likewise.
* ftpfs/fs.c: Likewise.
* ftpfs/ftpfs.c: Likewise.
* ftpfs/ftpfs.h: Likewise.
* ftpfs/ncache.c: Likewise.
* ftpfs/netfs.c: Likewise.
* ftpfs/node.c: Likewise.
* hostmux/Makefile: Likewise.
* hostmux/hostmux.h: Likewise.
* hostmux/mux.c: Likewise.
* hostmux/node.c: Likewise.
* hostmux/stubs.c: Likewise.
* hurd/shared.h: Likewise.
* isofs/Makefile: Likewise.
* isofs/inode.c: Likewise.
* isofs/lookup.c: Likewise.
* isofs/main.c: Likewise.
* isofs/pager.c: Likewise.
* libcons/Makefile: Likewise.
* libcons/cons-switch.c: Likewise.
* libcons/cons.h: Likewise.
* libcons/dir-changed.c: Likewise.
* libcons/file-changed.c: Likewise.
* libcons/init-init.c: Likewise.
* libcons/vcons-close.c: Likewise.
* libcons/vcons-input.c: Likewise.
* libcons/vcons-move-mouse.c: Likewise.
* libcons/vcons-open.c: Likewise.
* libcons/vcons-scrollback.c: Likewise.
* libdiskfs/Makefile: Likewise.
* libdiskfs/boot-start.c: Likewise.
* libdiskfs/dead-name.c: Likewise.
* libdiskfs/dir-chg.c: Likewise.
* libdiskfs/dir-link.c: Likewise.
* libdiskfs/dir-lookup.c: Likewise.
* libdiskfs/dir-mkdir.c: Likewise.
* libdiskfs/dir-mkfile.c: Likewise.
* libdiskfs/dir-readdir.c: Likewise.
* libdiskfs/dir-rename.c: Likewise.
* libdiskfs/dir-renamed.c: Likewise.
* libdiskfs/dir-rmdir.c: Likewise.
* libdiskfs/dir-unlink.c: Likewise.
* libdiskfs/disk-pager.c: Likewise.
* libdiskfs/diskfs-pager.h: Likewise.
* libdiskfs/diskfs.h: Likewise.
* libdiskfs/file-access.c: Likewise.
* libdiskfs/file-chg.c: Likewise.
* libdiskfs/file-exec.c: Likewise.
* libdiskfs/file-get-fs-opts.c: Likewise.
* libdiskfs/file-get-trans.c: Likewise.
* libdiskfs/file-get-transcntl.c: Likewise.
* libdiskfs/file-getcontrol.c: Likewise.
* libdiskfs/file-getfh.c: Likewise.
* libdiskfs/file-lock-stat.c: Likewise.
* libdiskfs/file-lock.c: Likewise.
* libdiskfs/file-reparent.c: Likewise.
* libdiskfs/file-set-trans.c: Likewise.
* libdiskfs/file-sync.c: Likewise.
* libdiskfs/file-syncfs.c: Likewise.
* libdiskfs/fsys-getroot.c: Likewise.
* libdiskfs/fsys-options.c: Likewise.
* libdiskfs/fsys-syncfs.c: Likewise.
* libdiskfs/ifsock.c: Likewise.
* libdiskfs/init-first.c: Likewise.
* libdiskfs/init-init.c: Likewise.
* libdiskfs/init-startup.c: Likewise.
* libdiskfs/io-duplicate.c: Likewise.
* libdiskfs/io-get-conch.c: Likewise.
* libdiskfs/io-identity.c: Likewise.
* libdiskfs/io-map-cntl.c: Likewise.
* libdiskfs/io-map.c: Likewise.
* libdiskfs/io-modes-get.c: Likewise.
* libdiskfs/io-modes-off.c: Likewise.
* libdiskfs/io-modes-on.c: Likewise.
* libdiskfs/io-modes-set.c: Likewise.
* libdiskfs/io-owner-get.c: Likewise.
* libdiskfs/io-owner-mod.c: Likewise.
* libdiskfs/io-prenotify.c: Likewise.
* libdiskfs/io-read.c: Likewise.
* libdiskfs/io-readable.c: Likewise.
* libdiskfs/io-reauthenticate.c: Likewise.
* libdiskfs/io-rel-conch.c: Likewise.
* libdiskfs/io-restrict-auth.c: Likewise.
* libdiskfs/io-revoke.c: Likewise.
* libdiskfs/io-seek.c: Likewise.
* libdiskfs/io-sigio.c: Likewise.
* libdiskfs/io-stat.c: Likewise.
* libdiskfs/io-write.c: Likewise.
* libdiskfs/lookup.c: Likewise.
* libdiskfs/name-cache.c: Likewise.
* libdiskfs/node-drop.c: Likewise.
* libdiskfs/node-make.c: Likewise.
* libdiskfs/node-nput.c: Likewise.
* libdiskfs/node-nputl.c: Likewise.
* libdiskfs/node-nref.c: Likewise.
* libdiskfs/node-nrefl.c: Likewise.
* libdiskfs/node-nrele.c: Likewise.
* libdiskfs/node-nrelel.c: Likewise.
* libdiskfs/peropen-rele.c: Likewise.
* libdiskfs/priv.h: Likewise.
* libdiskfs/shutdown.c: Likewise.
* libdiskfs/sync-interval.c: Likewise.
* libfshelp/Makefile: Likewise.
* libfshelp/fetch-root.c: Likewise.
* libfshelp/fshelp.h: Likewise.
* libfshelp/get-identity.c: Likewise.
* libfshelp/lock-acquire.c: Likewise.
* libfshelp/lock-init.c: Likewise.
* libfshelp/locks.h: Likewise.
* libfshelp/set-active.c: Likewise.
* libfshelp/trans.h: Likewise.
* libfshelp/transbox-init.c: Likewise.
* libiohelp/Makefile: Likewise.
* libiohelp/get_conch.c: Likewise.
* libiohelp/handle_io_release_conch.c: Likewise.
* libiohelp/initialize_conch.c: Likewise.
* libiohelp/iohelp.h: Likewise.
* libiohelp/verify_user_conch.c: Likewise.
* libnetfs/Makefile: Likewise.
* libnetfs/dir-lookup.c: Likewise.
* libnetfs/dir-mkdir.c: Likewise.
* libnetfs/dir-mkfile.c: Likewise.
* libnetfs/dir-readdir.c: Likewise.
* libnetfs/dir-rmdir.c: Likewise.
* libnetfs/dir-unlink.c: Likewise.
* libnetfs/drop-node.c: Likewise.
* libnetfs/file-chauthor.c: Likewise.
* libnetfs/file-check-access.c: Likewise.
* libnetfs/file-chflags.c: Likewise.
* libnetfs/file-chmod.c: Likewise.
* libnetfs/file-chown.c: Likewise.
* libnetfs/file-exec.c: Likewise.
* libnetfs/file-get-storage-info.c: Likewise.
* libnetfs/file-get-translator.c: Likewise.
* libnetfs/file-lock-stat.c: Likewise.
* libnetfs/file-lock.c: Likewise.
* libnetfs/file-reparent.c: Likewise.
* libnetfs/file-set-size.c: Likewise.
* libnetfs/file-set-translator.c: Likewise.
* libnetfs/file-statfs.c: Likewise.
* libnetfs/file-sync.c: Likewise.
* libnetfs/file-syncfs.c: Likewise.
* libnetfs/file-utimes.c: Likewise.
* libnetfs/fsys-getroot.c: Likewise.
* libnetfs/fsys-set-options.c: Likewise.
* libnetfs/init-init.c: Likewise.
* libnetfs/io-clear-some-openmodes.c: Likewise.
* libnetfs/io-duplicate.c: Likewise.
* libnetfs/io-get-openmodes.c: Likewise.
* libnetfs/io-get-owner.c: Likewise.
* libnetfs/io-identity.c: Likewise.
* libnetfs/io-mod-owner.c: Likewise.
* libnetfs/io-read.c: Likewise.
* libnetfs/io-readable.c: Likewise.
* libnetfs/io-reauthenticate.c: Likewise.
* libnetfs/io-restrict-auth.c: Likewise.
* libnetfs/io-revoke.c: Likewise.
* libnetfs/io-seek.c: Likewise.
* libnetfs/io-set-all-openmodes.c: Likewise.
* libnetfs/io-set-some-openmodes.c: Likewise.
* libnetfs/io-stat.c: Likewise.
* libnetfs/io-write.c: Likewise.
* libnetfs/make-node.c: Likewise.
* libnetfs/netfs.h: Likewise.
* libnetfs/nput.c: Likewise.
* libnetfs/nref.c: Likewise.
* libnetfs/nrele.c: Likewise.
* libnetfs/release-peropen.c: Likewise.
* libnetfs/shutdown.c: Likewise.
* libpager/Makefile: Likewise.
* libpager/chg-compl.c: Likewise.
* libpager/clean.c: Likewise.
* libpager/data-request.c: Likewise.
* libpager/data-return.c: Likewise.
* libpager/data-unlock.c: Likewise.
* libpager/inhibit-term.c: Likewise.
* libpager/lock-completed.c: Likewise.
* libpager/lock-object.c: Likewise.
* libpager/mark-error.c: Likewise.
* libpager/no-senders.c: Likewise.
* libpager/object-init.c: Likewise.
* libpager/object-terminate.c: Likewise.
* libpager/offer-page.c: Likewise.
* libpager/pager-attr.c: Likewise.
* libpager/pager-create.c: Likewise.
* libpager/pager-shutdown.c: Likewise.
* libpager/priv.h: Likewise.
* libpager/seqnos.c: Likewise.
* libpipe/Makefile: Likewise.
* libpipe/pipe.c: Likewise.
* libpipe/pipe.h: Likewise.
* libports/Makefile: Likewise.
* libports/begin-rpc.c: Likewise.
* libports/bucket-iterate.c: Likewise.
* libports/claim-right.c: Likewise.
* libports/class-iterate.c: Likewise.
* libports/complete-deallocate.c: Likewise.
* libports/count-bucket.c: Likewise.
* libports/count-class.c: Likewise.
* libports/create-bucket.c: Likewise.
* libports/create-internal.c: Likewise.
* libports/destroy-right.c: Likewise.
* libports/enable-bucket.c: Likewise.
* libports/enable-class.c: Likewise.
* libports/end-rpc.c: Likewise.
* libports/get-right.c: Likewise.
* libports/import-port.c: Likewise.
* libports/inhibit-all-rpcs.c: Likewise.
* libports/inhibit-bucket-rpcs.c: Likewise.
* libports/inhibit-class-rpcs.c: Likewise.
* libports/inhibit-port-rpcs.c: Likewise.
* libports/init.c: Likewise.
* libports/interrupt-notified-rpcs.c: Likewise.
* libports/interrupt-on-notify.c: Likewise.
* libports/interrupt-operation.c: Likewise.
* libports/interrupt-rpcs.c: Likewise.
* libports/interrupted.c: Likewise.
* libports/lookup-port.c: Likewise.
* libports/manage-multithread.c: Likewise.
* libports/no-senders.c: Likewise.
* libports/port-deref-weak.c: Likewise.
* libports/port-deref.c: Likewise.
* libports/port-ref-weak.c: Likewise.
* libports/port-ref.c: Likewise.
* libports/ports.h: Likewise.
* libports/reallocate-from-external.c: Likewise.
* libports/reallocate-port.c: Likewise.
* libports/resume-all-rpcs.c: Likewise.
* libports/resume-bucket-rpcs.c: Likewise.
* libports/resume-class-rpcs.c: Likewise.
* libports/resume-port-rpcs.c: Likewise.
* libports/stubs.c: Likewise.
* libports/transfer-right.c: Likewise.
* libstore/Makefile: Likewise.
* libstore/gunzip.c: Likewise.
* libstore/part.c: Likewise.
* libstore/unzipstore.c: Likewise.
* libthreads/Makefile: Likewise.
* libtreefs/dir-lookup.c: Likewise.
* libtreefs/fsys-getroot.c: Likewise.
* libtreefs/fsys-hooks.c: Likewise.
* libtreefs/fsys.c: Likewise.
* libtreefs/trans-help.c: Likewise.
* libtreefs/trans-start.c: Likewise.
* libtreefs/treefs.h: Likewise.
* libtrivfs/cntl-create.c: Likewise.
* libtrivfs/dyn-classes.c: Likewise.
* libtrivfs/io-reauthenticate.c: Likewise.
* libtrivfs/io-restrict-auth.c: Likewise.
* libtrivfs/protid-clean.c: Likewise.
* libtrivfs/protid-dup.c: Likewise.
* libtrivfs/trivfs.h: Likewise.
* mach-defpager/Makefile: Likewise.
* mach-defpager/default_pager.c: Likewise.
* mach-defpager/kalloc.c: Likewise.
* mach-defpager/main.c: Likewise.
* nfs/Makefile: Likewise.
* nfs/cache.c: Likewise.
* nfs/main.c: Likewise.
* nfs/mount.c: Likewise.
* nfs/name-cache.c: Likewise.
* nfs/nfs.h: Likewise.
* nfs/ops.c: Likewise.
* nfs/rpc.c: Likewise.
* nfsd/Makefile: Likewise.
* nfsd/cache.c: Likewise.
* nfsd/loop.c: Likewise.
* nfsd/main.c: Likewise.
* nfsd/nfsd.h: Likewise.
* pfinet/Makefile: Likewise.
* pfinet/ethernet.c: Likewise.
* pfinet/glue-include/asm/spinlock.h: Likewise.
* pfinet/glue-include/linux/interrupt.h: Likewise.
* pfinet/glue-include/linux/sched.h: Likewise.
* pfinet/glue-include/linux/timer.h: Likewise.
* pfinet/glue-include/linux/wait.h: Likewise.
* pfinet/iioctl-ops.c: Likewise.
* pfinet/io-ops.c: Likewise.
* pfinet/kmem_cache.c: Likewise.
* pfinet/main.c: Likewise.
* pfinet/options.c: Likewise.
* pfinet/pfinet-ops.c: Likewise.
* pfinet/pfinet.h: Likewise.
* pfinet/sched.c: Likewise.
* pfinet/socket-ops.c: Likewise.
* pfinet/socket.c: Likewise.
* pfinet/timer-emul.c: Likewise.
* pfinet/tunnel.c: Likewise.
* pflocal/Makefile: Likewise.
* pflocal/connq.c: Likewise.
* pflocal/io.c: Likewise.
* pflocal/sock.c: Likewise.
* pflocal/sock.h: Likewise.
* pflocal/socket.c: Likewise.
* pflocal/sserver.c: Likewise.
* proc/Makefile: Likewise.
* proc/info.c: Likewise.
* proc/main.c: Likewise.
* proc/mgt.c: Likewise.
* proc/msg.c: Likewise.
* proc/proc.h: Likewise.
* proc/stubs.c: Likewise.
* proc/wait.c: Likewise.
* storeio/Makefile: Likewise.
* storeio/dev.c: Likewise.
* storeio/dev.h: Likewise.
* storeio/open.c: Likewise.
* storeio/open.h: Likewise.
* storeio/pager.c: Likewise.
* storeio/storeio.c: Likewise.
* term/Makefile: Likewise.
* term/devio.c: Likewise.
* term/hurdio.c: Likewise.
* term/main.c: Likewise.
* term/munge.c: Likewise.
* term/ptyio.c: Likewise.
* term/term.h: Likewise.
* term/users.c: Likewise.
* tmpfs/Makefile: Likewise.
* tmpfs/dir.c: Likewise.
* tmpfs/node.c: Likewise.
* tmpfs/tmpfs.c: Likewise.
* tmpfs/tmpfs.h: Likewise.
* trans/Makefile: Likewise.
* trans/fakeroot.c: Likewise.
* trans/fifo.c: Likewise.
* trans/hello-mt.c: Likewise.
* trans/new-fifo.c: Likewise.
* trans/streamio.c: Likewise.
* ufs/Makefile: Likewise.
* ufs/alloc.c: Likewise.
* ufs/dir.c: Likewise.
* ufs/hyper.c: Likewise.
* ufs/inode.c: Likewise.
* ufs/main.c: Likewise.
* ufs/pager.c: Likewise.
* ufs/pokeloc.c: Likewise.
* ufs/sizes.c: Likewise.
* ufs/ufs.h: Likewise.
* usermux/Makefile: Likewise.
* usermux/mux.c: Likewise.
* usermux/node.c: Likewise.
* usermux/usermux.h: Likewise.
* utils/Makefile: Likewise.
* utils/fakeauth.c: Likewise.
* utils/rpctrace.c: Likewise.

7 files changed, 125 insertions, 112 deletions

diff --git a/pflocal/Makefile b/pflocal/Makefile
index 78b4c3f9..bfc2f4e8 100644
--- a/pflocal/Makefile
+++ b/pflocal/Makefile
@@ -25,7 +25,8 @@ SRCS = connq.c io.c pflocal.c socket.c pf.c sock.c sserver.c
 
 MIGSTUBS = ioServer.o socketServer.o
 OBJS = $(SRCS:.c=.o) $(MIGSTUBS)
-HURDLIBS = pipe trivfs iohelp fshelp threads ports ihash shouldbeinlibc
+HURDLIBS = pipe trivfs iohelp fshelp ports ihash shouldbeinlibc
+OTHERLIBS = -lpthread
 
 MIGSFLAGS = -imacros $(srcdir)/mig-mutate.h
 
diff --git a/pflocal/connq.c b/pflocal/connq.c
index 17dae14c..bf937652 100644
--- a/pflocal/connq.c
+++ b/pflocal/connq.c
@@ -18,7 +18,7 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
-#include <cthreads.h>
+#include <pthread.h>
 #include <assert.h>
 
 #include "connq.h"
@@ -33,14 +33,14 @@ struct connq
   unsigned max;
 
   /* Threads that have done an accept on this queue wait on this condition.  */
-  struct condition listeners;
+  pthread_cond_t listeners;
   unsigned num_listeners;
 
   /* Threads that have done a connect on this queue wait on this condition.  */
-  struct condition connectors;
+  pthread_cond_t connectors;
   unsigned num_connectors;
 
-  struct mutex lock;
+  pthread_mutex_t lock;
 };
 
 /* ---------------------------------------------------------------- */
@@ -65,7 +65,7 @@ connq_request_init (struct connq_request *req, struct sock *sock)
 static void
 connq_request_enqueue (struct connq *cq, struct connq_request *req)
 {
-  assert (! mutex_try_lock (&cq->lock));
+  assert (pthread_mutex_trylock (&cq->lock));
 
   req->next = NULL;
   *cq->tail = req;
@@ -81,7 +81,7 @@ connq_request_dequeue (struct connq *cq)
 {
   struct connq_request *req;
 
-  assert (! mutex_try_lock (&cq->lock));
+  assert (pthread_mutex_trylock (&cq->lock));
   assert (cq->head);
 
   req = cq->head;
@@ -117,9 +117,9 @@ connq_create (struct connq **cq)
   new->num_listeners = 0;
   new->num_connectors = 0;
 
-  mutex_init (&new->lock);
-  condition_init (&new->listeners);
-  condition_init (&new->connectors);
+  pthread_mutex_init (&new->lock, NULL);
+  pthread_cond_init (&new->listeners, NULL);
+  pthread_cond_init (&new->connectors, NULL);
 
   *cq = new;
   return 0;
@@ -147,18 +147,18 @@ connq_listen (struct connq *cq, int noblock, struct sock **sock)
 {
   error_t err = 0;
 
-  mutex_lock (&cq->lock);
+  pthread_mutex_lock (&cq->lock);
 
   if (noblock && cq->count == 0 && cq->num_connectors == 0)
     {
-      mutex_unlock (&cq->lock);
+      pthread_mutex_unlock (&cq->lock);
       return EWOULDBLOCK;
     }
 
   if (! sock && (cq->count > 0 || cq->num_connectors > 0))
     /* The caller just wants to know if a connection ready.  */
     {
-      mutex_unlock (&cq->lock);
+      pthread_mutex_unlock (&cq->lock);
       return 0;
     }
 
@@ -172,10 +172,10 @@ connq_listen (struct connq *cq, int noblock, struct sock **sock)
       if (cq->num_connectors > 0)
 	/* Someone is waiting for an acceptor.  Signal that we can
 	   service their request.  */
-	condition_signal (&cq->connectors);
+	pthread_cond_signal (&cq->connectors);
 
       do
-	if (hurd_condition_wait (&cq->listeners, &cq->lock))
+	if (pthread_hurd_cond_wait_np (&cq->listeners, &cq->lock))
 	  {
 	    cq->num_listeners--;
 	    err = EINTR;
@@ -198,7 +198,7 @@ connq_listen (struct connq *cq, int noblock, struct sock **sock)
        else could.  (This case is rare but possible: it would require
        one thread to do a select on the socket and a second to do an
        accept.)  */
-    condition_signal (&cq->listeners);
+    pthread_cond_signal (&cq->listeners);
   else
     /* There is no one else to process the request and the connection
        has now been initiated.  This is not actually a problem as even
@@ -209,7 +209,7 @@ connq_listen (struct connq *cq, int noblock, struct sock **sock)
     ;
 
  out:
-  mutex_unlock (&cq->lock);
+  pthread_mutex_unlock (&cq->lock);
   return err;
 }
 
@@ -220,7 +220,7 @@ connq_listen (struct connq *cq, int noblock, struct sock **sock)
 error_t
 connq_connect (struct connq *cq, int noblock)
 {
-  mutex_lock (&cq->lock);
+  pthread_mutex_lock (&cq->lock);
 
   /* Check for listeners after we've locked CQ for good.  */
 
@@ -229,7 +229,7 @@ connq_connect (struct connq *cq, int noblock)
     /* We are in non-blocking mode and would have to wait to secure an
        entry in the listen queue.  */
     {
-      mutex_unlock (&cq->lock);
+      pthread_mutex_unlock (&cq->lock);
       return EWOULDBLOCK;
     }
 
@@ -238,14 +238,14 @@ connq_connect (struct connq *cq, int noblock)
   while (cq->count + cq->num_connectors > cq->max + cq->num_listeners)
     /* The queue is full and there is no immediate listener to service
        us.  Block until we can get a slot.  */
-    if (hurd_condition_wait (&cq->connectors, &cq->lock))
+    if (pthread_hurd_cond_wait_np (&cq->connectors, &cq->lock))
       {
 	cq->num_connectors --;
-	mutex_unlock (&cq->lock);
+	pthread_mutex_unlock (&cq->lock);
 	return EINTR;
       }
 
-  mutex_unlock (&cq->lock);
+  pthread_mutex_unlock (&cq->lock);
 
   return 0;
 }
@@ -263,7 +263,7 @@ connq_connect_complete (struct connq *cq, struct sock *sock)
 
   connq_request_init (req, sock);
 
-  mutex_lock (&cq->lock);
+  pthread_mutex_lock (&cq->lock);
 
   assert (cq->num_connectors > 0);
   cq->num_connectors --;
@@ -276,26 +276,26 @@ connq_connect_complete (struct connq *cq, struct sock *sock)
        thread dequeues this request.  */
     {
       cq->num_listeners --;
-      condition_signal (&cq->listeners);
+      pthread_cond_signal (&cq->listeners);
     }
 
-  mutex_unlock (&cq->lock);
+  pthread_mutex_unlock (&cq->lock);
 }
 
 /* Follow up to connq_connect.  Cancel the connect.  */
 void
 connq_connect_cancel (struct connq *cq)
 {
-  mutex_lock (&cq->lock);
+  pthread_mutex_lock (&cq->lock);
 
   assert (cq->num_connectors > 0);
   cq->num_connectors --;
 
   if (cq->count + cq->num_connectors >= cq->max + cq->num_listeners)
     /* A connector is blocked and could use the spot we reserved.  */
-    condition_signal (&cq->connectors);
+    pthread_cond_signal (&cq->connectors);
 
-  mutex_unlock (&cq->lock);
+  pthread_mutex_unlock (&cq->lock);
 }
 
 /* Set CQ's queue length to LENGTH.  */
@@ -304,7 +304,7 @@ connq_set_length (struct connq *cq, int max)
 {
   int omax;
 
-  mutex_lock (&cq->lock);
+  pthread_mutex_lock (&cq->lock);
   omax = cq->max;
   cq->max = max;
 
@@ -313,9 +313,9 @@ connq_set_length (struct connq *cq, int max)
     /* This is an increase in the number of connection slots which has
        made some slots available and there are waiting threads.  Wake
        them up.  */
-    condition_broadcast (&cq->listeners);
+    pthread_cond_broadcast (&cq->listeners);
 
-  mutex_unlock (&cq->lock);
+  pthread_mutex_unlock (&cq->lock);
 
   return 0;
 }
diff --git a/pflocal/io.c b/pflocal/io.c
index b2ae7593..f67052f3 100644
--- a/pflocal/io.c
+++ b/pflocal/io.c
@@ -186,14 +186,14 @@ S_io_select (struct sock_user *user,
   *select_type &= SELECT_READ | SELECT_WRITE;
 
   sock = user->sock;
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
 
   if (sock->listen_queue)
     /* Sock is used for accepting connections, not I/O.  For these, you can
        only select for reading, which will block until a connection request
        comes along.  */
     {
-      mutex_unlock (&sock->lock);
+      pthread_mutex_unlock (&sock->lock);
 
       *select_type &= SELECT_READ;
 
@@ -233,17 +233,17 @@ S_io_select (struct sock_user *user,
 	  pipe_acquire_reader (read_pipe);
 	  if (pipe_wait_readable (read_pipe, 1, 1) != EWOULDBLOCK)
 	    ready |= SELECT_READ; /* Data immediately readable (or error). */
-	  mutex_unlock (&read_pipe->lock);
+	  pthread_mutex_unlock (&read_pipe->lock);
 	}
       if (valid & SELECT_WRITE)
 	{
 	  pipe_acquire_writer (write_pipe);
 	  if (pipe_wait_writable (write_pipe, 1) != EWOULDBLOCK)
 	    ready |= SELECT_WRITE; /* Data immediately writable (or error). */
-	  mutex_unlock (&write_pipe->lock);
+	  pthread_mutex_unlock (&write_pipe->lock);
 	}
 
-      mutex_unlock (&sock->lock);
+      pthread_mutex_unlock (&sock->lock);
 
       if (ready)
 	/* No need to block, we've already got some results.  */
@@ -294,30 +294,30 @@ S_io_stat (struct sock_user *user, struct stat *st)
   /* As we try to be clever with large transfers, ask for them. */
   st->st_blksize = vm_page_size * 16;
 
-  mutex_lock (&sock->lock);	/* Make sure the pipes don't go away...  */
+  pthread_mutex_lock (&sock->lock);	/* Make sure the pipes don't go away...  */
 
   rpipe = sock->read_pipe;
   wpipe = sock->write_pipe;
 
   if (rpipe)
     {
-      mutex_lock (&rpipe->lock);
+      pthread_mutex_lock (&rpipe->lock);
       copy_time (&rpipe->read_time, &st->st_atim.tv_sec, &st->st_atim.tv_nsec);
       /* This seems useful.  */
       st->st_size = pipe_readable (rpipe, 1);
-      mutex_unlock (&rpipe->lock);
+      pthread_mutex_unlock (&rpipe->lock);
     }
 
   if (wpipe)
     {
-      mutex_lock (&wpipe->lock);
+      pthread_mutex_lock (&wpipe->lock);
       copy_time (&wpipe->write_time, &st->st_mtim.tv_sec, &st->st_mtim.tv_nsec);
-      mutex_unlock (&wpipe->lock);
+      pthread_mutex_unlock (&wpipe->lock);
     }
 
   copy_time (&sock->change_time, &st->st_ctim.tv_sec, &st->st_ctim.tv_nsec);
 
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   return 0;
 }
@@ -343,12 +343,12 @@ S_io_set_all_openmodes (struct sock_user *user, int bits)
   if (!user)
     return EOPNOTSUPP;
 
-  mutex_lock (&user->sock->lock);
+  pthread_mutex_lock (&user->sock->lock);
   if (bits & O_NONBLOCK)
     user->sock->flags |= SOCK_NONBLOCK;
   else
     user->sock->flags &= ~SOCK_NONBLOCK;
-  mutex_unlock (&user->sock->lock);
+  pthread_mutex_unlock (&user->sock->lock);
 
   return 0;
 }
@@ -359,10 +359,10 @@ S_io_set_some_openmodes (struct sock_user *user, int bits)
   if (!user)
     return EOPNOTSUPP;
 
-  mutex_lock (&user->sock->lock);
+  pthread_mutex_lock (&user->sock->lock);
   if (bits & O_NONBLOCK)
     user->sock->flags |= SOCK_NONBLOCK;
-  mutex_unlock (&user->sock->lock);
+  pthread_mutex_unlock (&user->sock->lock);
 
   return 0;
 }
@@ -373,10 +373,10 @@ S_io_clear_some_openmodes (struct sock_user *user, int bits)
   if (!user)
     return EOPNOTSUPP;
 
-  mutex_lock (&user->sock->lock);
+  pthread_mutex_lock (&user->sock->lock);
   if (bits & O_NONBLOCK)
     user->sock->flags &= ~SOCK_NONBLOCK;
-  mutex_unlock (&user->sock->lock);
+  pthread_mutex_unlock (&user->sock->lock);
 
   return 0;
 }
@@ -454,12 +454,12 @@ S_io_pathconf (struct sock_user *user, int name, int *value)
     return EOPNOTSUPP;
   else if (name == _PC_PIPE_BUF)
     {
-      mutex_lock (&user->sock->lock);
+      pthread_mutex_lock (&user->sock->lock);
       if (user->sock->write_pipe == NULL)
 	*value = 0;
       else
 	*value = user->sock->write_pipe->write_atomic;
-      mutex_unlock (&user->sock->lock);
+      pthread_mutex_unlock (&user->sock->lock);
       return 0;
     }
   else
@@ -481,13 +481,13 @@ S_io_identity (struct sock_user *user,
 
   if (server_id == MACH_PORT_NULL)
     {
-      static struct mutex server_id_lock = MUTEX_INITIALIZER;
+      static pthread_mutex_t server_id_lock = PTHREAD_MUTEX_INITIALIZER;
 
-      mutex_lock (&server_id_lock);
+      pthread_mutex_lock (&server_id_lock);
       if (server_id == MACH_PORT_NULL) /* Recheck with the lock held.  */
 	err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
 				  &server_id);
-      mutex_unlock (&server_id_lock);
+      pthread_mutex_unlock (&server_id_lock);
 
       if (err)
 	return err;
@@ -495,11 +495,11 @@ S_io_identity (struct sock_user *user,
 
   sock = user->sock;
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   if (sock->id == MACH_PORT_NULL)
     err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
 			      &sock->id);
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   if (! err)
     {
diff --git a/pflocal/sock.c b/pflocal/sock.c
index 292e4290..ac66eaca 100644
--- a/pflocal/sock.c
+++ b/pflocal/sock.c
@@ -19,7 +19,7 @@
 
 #include <string.h>		/* For memset() */
 
-#include <cthreads.h>
+#include <pthread.h>
 
 #include <hurd/pipe.h>
 
@@ -38,7 +38,7 @@ sock_acquire_read_pipe (struct sock *sock, struct pipe **pipe)
 {
   error_t err = 0;
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
 
   *pipe = sock->read_pipe;
   if (*pipe != NULL)
@@ -57,7 +57,7 @@ sock_acquire_read_pipe (struct sock *sock, struct pipe **pipe)
   else
     err = ENOTCONN;
 
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   return err;
 }
@@ -70,7 +70,7 @@ sock_acquire_write_pipe (struct sock *sock, struct pipe **pipe)
 {
   error_t err = 0;
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   *pipe = sock->write_pipe;
   if (*pipe != NULL)
     pipe_acquire_writer (*pipe); /* Do this before unlocking the sock!  */
@@ -85,7 +85,7 @@ sock_acquire_write_pipe (struct sock *sock, struct pipe **pipe)
   else
     err = ENOTCONN;
 
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   return err;
 }
@@ -123,7 +123,7 @@ sock_create (struct pipe_class *pipe_class, mode_t mode, struct sock **sock)
   new->pipe_class = pipe_class;
   new->addr = NULL;
   memset (&new->change_time, 0, sizeof (new->change_time));
-  mutex_init (&new->lock);
+  pthread_mutex_init (&new->lock, NULL);
 
   *sock = new;
   return 0;
@@ -148,7 +148,7 @@ _sock_norefs (struct sock *sock)
   /* A sock should never have an address when it has 0 refs, as the
      address should hold a reference to the sock!  */
   assert (sock->addr == NULL);
-  mutex_unlock (&sock->lock);	/* Unlock so sock_free can do stuff.  */
+  pthread_mutex_unlock (&sock->lock);	/* Unlock so sock_free can do stuff.  */
   sock_free (sock);
 }
 
@@ -195,9 +195,9 @@ sock_create_port (struct sock *sock, mach_port_t *port)
 
   ensure_sock_server ();
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   sock->refs++;
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   user->sock = sock;
 
@@ -214,7 +214,7 @@ struct addr
 {
   struct port_info pi;
   struct sock *sock;
-  struct mutex lock;
+  pthread_mutex_t lock;
 };
 
 struct port_class *addr_port_class;
@@ -227,18 +227,18 @@ addr_unbind (void *vaddr)
   struct sock *sock;
   struct addr *addr = vaddr;
 
-  mutex_lock (&addr->lock);
+  pthread_mutex_lock (&addr->lock);
   sock = addr->sock;
   if (sock)
     {
-      mutex_lock (&sock->lock);
+      pthread_mutex_lock (&sock->lock);
       sock->addr = NULL;
       addr->sock = NULL;
       ports_port_deref_weak (addr);
-      mutex_unlock (&sock->lock);
+      pthread_mutex_unlock (&sock->lock);
       sock_deref (sock);
     }
-  mutex_unlock (&addr->lock);
+  pthread_mutex_unlock (&addr->lock);
 }
 
 /* Cleanup after the address ADDR, which is going away... */
@@ -264,7 +264,7 @@ addr_create (struct addr **addr)
     {
       ensure_sock_server ();
       (*addr)->sock = NULL;
-      mutex_init (&(*addr)->lock);
+      pthread_mutex_init (&(*addr)->lock, NULL);
     }
 
   return err;
@@ -277,8 +277,8 @@ sock_bind (struct sock *sock, struct addr *addr)
   error_t err = 0;
   struct addr *old_addr;
 
-  mutex_lock (&addr->lock);
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&addr->lock);
+  pthread_mutex_lock (&sock->lock);
 
   old_addr = sock->addr;
   if (addr && old_addr)
@@ -304,8 +304,8 @@ sock_bind (struct sock *sock, struct addr *addr)
 	}
     }
 
-  mutex_unlock (&sock->lock);
-  mutex_unlock (&addr->lock);
+  pthread_mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&addr->lock);
 
   return err;
 }
@@ -341,11 +341,11 @@ ensure_addr (struct sock *sock, struct addr **addr)
 error_t
 addr_get_sock (struct addr *addr, struct sock **sock)
 {
-  mutex_lock (&addr->lock);
+  pthread_mutex_lock (&addr->lock);
   *sock = addr->sock;
   if (*sock)
     (*sock)->refs++;
-  mutex_unlock (&addr->lock);
+  pthread_mutex_unlock (&addr->lock);
   return *sock ? 0 : EADDRNOTAVAIL;
 }
 
@@ -356,9 +356,9 @@ sock_get_addr (struct sock *sock, struct addr **addr)
 {
   error_t err;
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   err = ensure_addr (sock, addr);
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
 
   return err;			/* XXX */
 }
@@ -368,7 +368,7 @@ sock_get_addr (struct sock *sock, struct addr **addr)
 /* We hold this lock before we lock two sockets at once, to prevent someone
    else trying to lock the same two sockets in the reverse order, resulting
    in a deadlock.  */
-static struct mutex socket_pair_lock;
+static pthread_mutex_t socket_pair_lock;
 
 /* Connect SOCK1 and SOCK2.  */
 error_t
@@ -396,11 +396,11 @@ sock_connect (struct sock *sock1, struct sock *sock2)
     /* Incompatible socket types.  */
     return EOPNOTSUPP;		/* XXX?? */
 
-  mutex_lock (&socket_pair_lock);
-  mutex_lock (&sock1->lock);
+  pthread_mutex_lock (&socket_pair_lock);
+  pthread_mutex_lock (&sock1->lock);
   if (sock1 != sock2)
     /* If SOCK1 == SOCK2, then we get a fifo!  */
-    mutex_lock (&sock2->lock);
+    pthread_mutex_lock (&sock2->lock);
 
   if ((sock1->flags & SOCK_CONNECTED) || (sock2->flags & SOCK_CONNECTED))
     /* An already-connected socket.  */
@@ -426,9 +426,9 @@ sock_connect (struct sock *sock1, struct sock *sock2)
     }
 
   if (sock1 != sock2)
-    mutex_unlock (&sock2->lock);
-  mutex_unlock (&sock1->lock);
-  mutex_unlock (&socket_pair_lock);
+    pthread_mutex_unlock (&sock2->lock);
+  pthread_mutex_unlock (&sock1->lock);
+  pthread_mutex_unlock (&socket_pair_lock);
 
   if (old_sock1_write_pipe)
     {
@@ -450,7 +450,7 @@ sock_shutdown (struct sock *sock, unsigned flags)
   struct pipe *read_pipe = NULL;
   struct pipe *write_pipe = NULL;
 
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
 
   old_flags = sock->flags;
   sock->flags |= flags;
@@ -469,7 +469,7 @@ sock_shutdown (struct sock *sock, unsigned flags)
     }
 
   /* Unlock SOCK here, as we may subsequently wake up other threads. */
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
   
   if (read_pipe)
     pipe_remove_reader (read_pipe);
diff --git a/pflocal/sock.h b/pflocal/sock.h
index 6bad8af8..fb2db5a4 100644
--- a/pflocal/sock.h
+++ b/pflocal/sock.h
@@ -22,7 +22,7 @@
 #define __SOCK_H__
 
 #include <assert.h>
-#include <cthreads.h>		/* For mutexes */
+#include <pthread.h>		/* For mutexes */
 #include <sys/mman.h>
 #include <sys/types.h>
 
@@ -42,7 +42,7 @@ struct sock_user
 struct sock
 {
   int refs;
-  struct mutex lock;
+  pthread_mutex_t lock;
 
   /* What kind of socket this is.  */
   struct pipe_class *pipe_class;
@@ -118,11 +118,11 @@ void _sock_norefs (struct sock *sock);
 static inline void __attribute__ ((unused))
 sock_deref (struct sock *sock)
 {
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   if (--sock->refs == 0)
     _sock_norefs (sock);
   else
-    mutex_unlock (&sock->lock);
+    pthread_mutex_unlock (&sock->lock);
 }
 
 /* Return a new socket just like TEMPLATE in SOCK.  */
diff --git a/pflocal/socket.c b/pflocal/socket.c
index 64a80a46..46749fee 100644
--- a/pflocal/socket.c
+++ b/pflocal/socket.c
@@ -53,10 +53,10 @@ static error_t
 ensure_connq (struct sock *sock)
 {
   error_t err = 0;
-  mutex_lock (&sock->lock);
+  pthread_mutex_lock (&sock->lock);
   if (!sock->listen_queue)
     err = connq_create (&sock->listen_queue);
-  mutex_unlock (&sock->lock);
+  pthread_mutex_unlock (&sock->lock);
   return err;
 }
 
@@ -105,7 +105,7 @@ S_socket_connect (struct sock_user *user, struct addr *addr)
 	/* For connection-oriented protocols, only connect with sockets that
            are actually listening.  */
 	{
-	  mutex_lock (&sock->lock);
+	  pthread_mutex_lock (&sock->lock);
 	  if (sock->connect_queue)
 	    /* SOCK is already doing a connect.  */
 	    err = EALREADY;
@@ -121,7 +121,7 @@ S_socket_connect (struct sock_user *user, struct addr *addr)
 	         to do so will fail with EALREADY.  */
 	      sock->connect_queue = cq;
 	      /* Unlock SOCK while waiting.  */
-	      mutex_unlock (&sock->lock);
+	      pthread_mutex_unlock (&sock->lock);
 
 	      err = connq_connect (peer->listen_queue,
 				   sock->flags & SOCK_NONBLOCK);
@@ -139,7 +139,7 @@ S_socket_connect (struct sock_user *user, struct addr *addr)
 			sock_free (server);
 		    }
 
-	          mutex_lock (&sock->lock);
+	          pthread_mutex_lock (&sock->lock);
 		  if (err)
 		    connq_connect_cancel (peer->listen_queue);
 		}
@@ -149,7 +149,7 @@ S_socket_connect (struct sock_user *user, struct addr *addr)
 	      sock->connect_queue = NULL;
 	    }
 
-	  mutex_unlock (&sock->lock);
+	  pthread_mutex_unlock (&sock->lock);
 	}
       else
 	err = ECONNREFUSED;
@@ -425,7 +425,7 @@ S_socket_getopt (struct sock_user *user,
   if (!user)
     return EOPNOTSUPP;
 
-  mutex_lock (&user->sock->lock);
+  pthread_mutex_lock (&user->sock->lock);
   switch (level)
     {
     case SOL_SOCKET:
@@ -445,7 +445,7 @@ S_socket_getopt (struct sock_user *user,
       ret = ENOPROTOOPT;
       break;
     }
-  mutex_unlock (&user->sock->lock);
+  pthread_mutex_unlock (&user->sock->lock);
 
   return ret;
 }
@@ -459,14 +459,14 @@ S_socket_setopt (struct sock_user *user,
   if (!user)
     return EOPNOTSUPP;
 
-  mutex_lock (&user->sock->lock);
+  pthread_mutex_lock (&user->sock->lock);
   switch (level)
     {
     default:
       ret = ENOPROTOOPT;
       break;
     }
-  mutex_unlock (&user->sock->lock);
+  pthread_mutex_unlock (&user->sock->lock);
 
   return ret;
 }
diff --git a/pflocal/sserver.c b/pflocal/sserver.c
index 7e00b323..9de0aa54 100644
--- a/pflocal/sserver.c
+++ b/pflocal/sserver.c
@@ -18,7 +18,8 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
-#include <cthreads.h>
+#include <pthread.h>
+#include <stdio.h>
 
 #include <hurd/ports.h>
 
@@ -29,7 +30,7 @@ struct port_bucket *sock_port_bucket;
 
 /* True if there are threads servicing sock requests.  */
 static int sock_server_active = 0;
-static spin_lock_t sock_server_active_lock = SPIN_LOCK_INITIALIZER;
+static pthread_spinlock_t sock_server_active_lock = PTHREAD_SPINLOCK_INITIALIZER;
 
 /* A demuxer for socket operations.  */
 static int
@@ -45,8 +46,8 @@ sock_demuxer (mach_msg_header_t *inp, mach_msg_header_t *outp)
 }
 
 /* Handle socket requests while there are sockets around.  */
-static void
-handle_sock_requests ()
+static void *
+handle_sock_requests (void *unused)
 {
   while (ports_count_bucket (sock_port_bucket) > 0)
     {
@@ -56,12 +57,14 @@ handle_sock_requests ()
     }
 
   /* The last service thread is about to exist; make this known.  */
-  spin_lock (&sock_server_active_lock);
+  pthread_spin_lock (&sock_server_active_lock);
   sock_server_active = 0;
-  spin_unlock (&sock_server_active_lock);
+  pthread_spin_unlock (&sock_server_active_lock);
 
   /* Let the whole joke start once again.  */
   ports_enable_bucket (sock_port_bucket);
+
+  return NULL;
 }
 
 /* Makes sure there are some request threads for sock operations, and starts
@@ -71,14 +74,23 @@ handle_sock_requests ()
 void
 ensure_sock_server ()
 {
-  spin_lock (&sock_server_active_lock);
+  pthread_t thread;
+  error_t err;
+
+  pthread_spin_lock (&sock_server_active_lock);
   if (sock_server_active)
-    spin_unlock (&sock_server_active_lock);
+    pthread_spin_unlock (&sock_server_active_lock);
   else
     {
       sock_server_active = 1;
-      spin_unlock (&sock_server_active_lock);
-      cthread_detach (cthread_fork ((cthread_fn_t)handle_sock_requests,
-				    (any_t)0));
+      pthread_spin_unlock (&sock_server_active_lock);
+      err = pthread_create (&thread, NULL, handle_sock_requests, NULL);
+      if (!err)
+	pthread_detach (thread);
+      else
+	{
+	  errno = err;
+	  perror ("pthread_create");
+	}
     }
 }