2006-02-20 Thomas Schwinge <tschwinge@gnu.org>

Remove unused and unsupported code.  Consult the file
	`DEVELOPMENT' for details.  Partly based on suggestions by
	Gianluca Guida <glguida@gmail.com>.

	* chips/atm.c: Remove file.
	* chips/atmreg.h: Likewise.
	* chips/audio.c: Likewise.
	* chips/audio_config.h: Likewise.
	* chips/audio_defs.h: Likewise.
	* chips/bt431.c: Likewise.
	* chips/bt431.h: Likewise.
	* chips/bt455.c: Likewise.
	* chips/bt455.h: Likewise.
	* chips/bt459.c: Likewise.
	* chips/bt459.h: Likewise.
	* chips/bt478.c: Likewise.
	* chips/bt478.h: Likewise.
	* chips/build_font.c: Likewise.
	* chips/cfb_hdw.c: Likewise.
	* chips/cfb_misc.c: Likewise.
	* chips/dc503.c: Likewise.
	* chips/dc503.h: Likewise.
	* chips/dtop.h: Likewise.
	* chips/dtop_handlers.c: Likewise.
	* chips/dtop_hdw.c: Likewise.
	* chips/dz_7085.h: Likewise.
	* chips/dz_defs.h: Likewise.
	* chips/dz_hdw.c: Likewise.
	* chips/eccreg.h: Likewise.
	* chips/fb_hdw.c: Likewise.
	* chips/fb_misc.c: Likewise.
	* chips/fdc_82077.h: Likewise.
	* chips/fdc_82077_hdw.c: Likewise.
	* chips/frc.c: Likewise.
	* chips/ims332.c: Likewise.
	* chips/ims332.h: Likewise.
	* chips/isdn_79c30.h: Likewise.
	* chips/isdn_79c30_hdw.c: Likewise.
	* chips/kernel_font.c: Likewise.
	* chips/kernel_font.data: Likewise.
	* chips/lance.c: Likewise.
	* chips/lance.h: Likewise.
	* chips/lance_mapped.c: Likewise.
	* chips/lk201.c: Likewise.
	* chips/lk201.h: Likewise.
	* chips/mc_clock.c: Likewise.
	* chips/mc_clock.h: Likewise.
	* chips/mouse.c: Likewise.
	* chips/nc.c: Likewise.
	* chips/nc.h: Likewise.
	* chips/nw.h: Likewise.
	* chips/nw_mk.c: Likewise.
	* chips/nw_mk.h: Likewise.
	* chips/pm_defs.h: Likewise.
	* chips/pm_hdw.c: Likewise.
	* chips/pm_misc.c: Likewise.
	* chips/scc_8530.h: Likewise.
	* chips/scc_8530_hdw.c: Likewise.
	* chips/screen.c: Likewise.
	* chips/screen.h: Likewise.
	* chips/screen_defs.h: Likewise.
	* chips/screen_switch.c: Likewise.
	* chips/screen_switch.h: Likewise.
	* chips/serial_console.c: Likewise.
	* chips/serial_defs.h: Likewise.
	* chips/sfb_hdw.c: Likewise.
	* chips/sfb_misc.c: Likewise.
	* chips/spans.c: Likewise.
	* chips/spans.h: Likewise.
	* chips/tca100.c: Likewise.
	* chips/tca100.h: Likewise.
	* chips/tca100_if.c: Likewise.
	* chips/tca100_if.h: Likewise.
	* chips/vs42x_rb.h: Likewise.
	* chips/xcfb_hdw.c: Likewise.
	* chips/xcfb_misc.c: Likewise.
	* chips/xcfb_monitor.h: Likewise.
	* Makefile.in (chips-files): Only contain `busses.c' and `busses.h'.
	* kern/syscall_sw.c: Don't include <chips/nw_mk.h> anymore.

1 files changed, 0 insertions, 1323 deletions

diff --git a/chips/nw_mk.c b/chips/nw_mk.c
deleted file mode 100644
index 067cf7d..0000000
--- a/chips/nw_mk.c
+++ /dev/null
@@ -1,1323 +0,0 @@
-/* 
- * Mach Operating System
- * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
- * Carnegie Mellon requests users of this software to return to
- * 
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Scienctxe
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- * 
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-
-/*** MACH KERNEL WRAPPER ***/
-
-#ifndef STUB
-#include <kern/task.h>
-#include <kern/thread.h>
-#include <kern/sched_prim.h>
-#include <kern/eventcount.h>
-#include <kern/time_out.h>	      
-#include <machine/machspl.h>		/* spl definitions */
-#include <vm/vm_kern.h>
-#include <chips/nc.h>
-#include <chips/nw_mk.h>
-
-decl_simple_lock_data(, nw_simple_lock);
-u_int previous_spl;
-
-#define nw_lock() \
-  previous_spl = splimp(); \
-  simple_lock(&nw_simple_lock)
-
-#define nw_unlock() \
-  simple_unlock(&nw_simple_lock); \
-  splx(previous_spl)
-
-typedef struct nw_pvs {
-  task_t owner;
-  char *buf_start;
-  char *buf_end;
-  struct nw_pvs *next;
-} nw_pv_s, *nw_pv_t;
-
-typedef struct nw_waiters {
-  thread_t waiter;
-  struct nw_waiters *next;
-} nw_waiter_s, *nw_waiter_t;
-
-typedef struct {
-  nw_pv_t pv;
-  thread_t sig_waiter;
-  nw_waiter_t rx_first;
-  nw_waiter_t rx_last;
-  nw_waiter_t tx_first;
-  nw_waiter_t tx_last;
-} nw_hecb, *nw_hecb_t;
-
-#else
-#include "nc.h"
-#include "nw_mk.h"
-#endif
-
-/*** Types and data structures ***/
-
-int h_initialized = FALSE;
-nw_pv_s nw_pv[2*MAX_EP];
-nw_pv_t nw_free_pv;
-nw_waiter_s nw_waiter[2*MAX_EP];
-nw_waiter_t nw_free_waiter;
-nw_ep_owned_s nw_waited[3*MAX_EP];
-nw_ep_owned_t nw_free_waited;
-nw_hecb hect[MAX_EP];
-timer_elt_data_t nw_fast_timer, nw_slow_timer;
-
-/*** Initialization ***/
-
-void h_initialize() {
-  int ep, last_ep;
-
-  if (!h_initialized) {
-    last_ep = sizeof(nw_pv)/sizeof(nw_pv_s) - 1;
-    for (ep = 0; ep < last_ep; ep++) {
-      nw_pv[ep].next = &nw_pv[ep+1];
-    }
-    nw_pv[last_ep].next = NULL;
-    nw_free_pv = &nw_pv[0];
-    last_ep = sizeof(nw_waiter)/sizeof(nw_waiter_s) - 1;
-    for (ep = 0; ep < last_ep; ep++) {
-      nw_waiter[ep].next = &nw_waiter[ep+1];
-    }
-    nw_waiter[last_ep].next = NULL;
-    nw_free_waiter = &nw_waiter[0];
-    last_ep = sizeof(nw_waited)/sizeof(nw_ep_owned_s) - 1;
-    for (ep = 0; ep < last_ep; ep++) {
-      nw_waited[ep].next = &nw_waited[ep+1];
-    }
-    nw_waited[last_ep].next = NULL;
-    nw_free_waited = &nw_waited[0];
-    last_ep = sizeof(hect)/sizeof(nw_hecb);
-    for (ep = 0; ep < last_ep; ep++) {
-      hect[ep].pv = NULL;
-      hect[ep].sig_waiter = NULL;
-      hect[ep].rx_first = NULL;
-      hect[ep].rx_last = NULL;
-      hect[ep].tx_first = NULL;
-      hect[ep].tx_last = NULL;
-    }
-    nw_fast_timer.fcn = mk_fast_sweep;
-    nw_fast_timer.param = NULL;
-    nw_fast_timer.set = TELT_UNSET;
-    nw_slow_timer.fcn = mk_slow_sweep;
-    nw_slow_timer.param = NULL;
-#if PRODUCTION
-    set_timeout(&nw_slow_timer, 2*hz);
-#endif
-    h_initialized = TRUE;
-  }
-}
-
-/*** User-trappable functions ***/  
-
-nw_result mk_update(mach_port_t master_port, nw_update_type up_type,
-		    int *up_info) {
-  nw_result rc;
-
-  if (master_port == 0) {          /* XXX */
-    rc = NW_FAILURE;
-  } else {
-    nw_lock();
-    switch (up_type) {
-    case NW_HOST_ADDRESS_REGISTER:
-    case NW_HOST_ADDRESS_UNREGISTER:
-      if (invalid_user_access(current_task()->map, (vm_offset_t) up_info,
-			      (vm_offset_t) up_info + sizeof(nw_address_s) - 1,
-			      VM_PROT_READ | VM_PROT_WRITE)) {
-	rc = NW_INVALID_ARGUMENT;
-      } else {
-	rc = nc_update(up_type, up_info);
-      }
-      break;
-    case NW_INITIALIZE:
-      nc_initialize();
-      rc = NW_SUCCESS;
-      break;
-    default:
-      rc = NW_INVALID_ARGUMENT;
-    }
-    nw_unlock();
-  }
-  return rc;
-}
-
-
-
-nw_result mk_lookup(nw_lookup_type lt, int *look_info) {
-  nw_result rc;
-  int max_size, dev;
-  
-  nw_lock();
-  switch (lt) {
-  case NW_HOST_ADDRESS_LOOKUP:
-    if (invalid_user_access(current_task()->map, (vm_offset_t) look_info,
-			    (vm_offset_t) look_info + sizeof(nw_address_s) - 1,
-			    VM_PROT_READ | VM_PROT_WRITE)) {
-      rc = NW_INVALID_ARGUMENT;
-    } else {
-      rc = nc_lookup(lt, look_info);
-    }
-    break;
-  case NW_STATUS:
-    max_size = sizeof(nw_device);
-    if (max_size < sizeof(nw_result))
-      max_size = sizeof(nw_result);
-    if (invalid_user_access(current_task()->map, (vm_offset_t) look_info,
-			    (vm_offset_t) look_info + max_size - 1,
-			    VM_PROT_READ | VM_PROT_WRITE) ||
-	(dev = look_info[0]) >= MAX_DEV || dev < 0) {
-      rc = NW_INVALID_ARGUMENT;
-    } else {
-      if (devct[dev].status != NW_SUCCESS) {
-	look_info[0] = (int) devct[dev].status;
-	rc = NW_SUCCESS;
-      } else {
-	rc = (*(devct[dev].entry->status)) (dev);
-      }
-    }
-    break;
-  default:
-    rc = NW_INVALID_ARGUMENT;
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_endpoint_allocate_internal(nw_ep_t epp, nw_protocol protocol,
-					nw_acceptance accept,
-					u_int buffer_size, boolean_t system) {
-  nw_result rc;
-  u_int ep;
-  vm_offset_t kernel_addr, user_addr;
-  nw_pv_t pv;
-  nw_ep_owned_t owned;
-
-    ep = *epp;
-    if (buffer_size == 0)
-      buffer_size = 0x1000;
-    else
-      buffer_size = (buffer_size + 0xfff) & ~0xfff;
-    nw_lock();
-    if (ep >= MAX_EP || (pv = hect[ep].pv) != NULL) {
-      rc = NW_BAD_EP;
-    } else if (nw_free_pv == NULL || nw_free_waited == NULL) {
-      rc = NW_NO_EP;
-    } else if (projected_buffer_allocate(current_task()->map, buffer_size, 0,
-					 &kernel_addr, &user_addr,
-					 VM_PROT_READ | VM_PROT_WRITE,
-					 VM_INHERIT_NONE) != KERN_SUCCESS) {
-      rc = NW_NO_RESOURCES;
-    } else {
-      rc = nc_endpoint_allocate(epp, protocol, accept,
-				(char *) kernel_addr, buffer_size);
-      if (rc == NW_NO_EP && (ep = *epp) != 0) {
-	rc = (*(devct[NW_DEVICE(ect[ep].conn->peer.rem_addr_1)].entry->
-		         close)) (ep);
-	if (rc == NW_SYNCH) {
-	  hect[ep].sig_waiter = current_thread();
-	  assert_wait(0, TRUE);
-	  simple_unlock(&nw_simple_lock);
-	  thread_block((void (*)()) 0);
-	}
-	rc = nc_endpoint_deallocate(ep);
-	if (rc == NW_SUCCESS) {
-	  nc_line_update(&ect[ep].conn->peer, 0);
-	  rc = nc_endpoint_allocate(epp, protocol, accept,
-				    (char *) kernel_addr, buffer_size);
-	}
-      }
-      if (rc == NW_SUCCESS) {
-	ep = *epp;
-	if (system) {
-	  hect[ep].pv = NULL;
-	} else {
-	  hect[ep].pv = nw_free_pv;
-	  nw_free_pv = nw_free_pv->next;
-	  hect[ep].pv->owner = current_task();
-	  hect[ep].pv->buf_start = (char *) user_addr;
-	  hect[ep].pv->buf_end = (char *) user_addr + buffer_size;
-	  hect[ep].pv->next = NULL;
-	}
-	hect[ep].sig_waiter = NULL;
-	hect[ep].rx_first = NULL;
-	hect[ep].rx_last = NULL;
-	hect[ep].tx_first = NULL;
-	hect[ep].tx_last = NULL;
-	owned = nw_free_waited;
-	nw_free_waited = nw_free_waited->next;
-	owned->ep = ep;
-	owned->next = current_task()->nw_ep_owned;
-	current_task()->nw_ep_owned = owned;
-      } else {
-	projected_buffer_deallocate(current_task()->map, user_addr,
-				    user_addr + buffer_size);
-      } 
-    }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_endpoint_allocate(nw_ep_t epp, nw_protocol protocol,
-			       nw_acceptance accept, u_int buffer_size) {
-  nw_result rc;
-
-  if (invalid_user_access(current_task()->map, (vm_offset_t) epp,
-			  (vm_offset_t) epp + sizeof(nw_ep) - 1,
-			  VM_PROT_READ | VM_PROT_WRITE) ||
-      (protocol != NW_RAW && protocol != NW_DATAGRAM &&
-       protocol != NW_SEQ_PACKET) || (accept != NW_NO_ACCEPT &&
-       accept != NW_APPL_ACCEPT && accept  != NW_AUTO_ACCEPT)) {
-    rc = NW_INVALID_ARGUMENT;
-  } else {
-    rc = mk_endpoint_allocate_internal(epp, protocol, accept,
-				       buffer_size, FALSE);
-  }
-  return rc;
-}
-
-nw_result mk_endpoint_deallocate_internal(nw_ep ep, task_t task,
-					  boolean_t shutdown) {
-  nw_result rc;
-  nw_pv_t pv, pv_previous;
-  nw_ep_owned_t owned, owned_previous;
-  nw_waiter_t w, w_previous, w_next;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    pv_previous = NULL;
-    while (pv != NULL && pv->owner != task) {
-      pv_previous = pv;
-      pv = pv->next;
-    }
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      if (projected_buffer_deallocate(task->map, pv->buf_start,
-				      pv->buf_end) != KERN_SUCCESS) {
-	rc = NW_INCONSISTENCY;
-	printf("Endpoint deallocate: inconsistency p. buffer\n");
-      } else {
-	if (pv_previous == NULL)
-	  hect[ep].pv = pv->next;
-	else
-	  pv_previous->next = pv->next;
-	pv->next = nw_free_pv;
-	nw_free_pv = pv;
-	owned = task->nw_ep_owned;
-	owned_previous = NULL;
-	while (owned != NULL && owned->ep != ep) {
-	  owned_previous = owned;
-	  owned = owned->next;
-	}
-	if (owned == NULL) {
-	  rc = NW_INCONSISTENCY;
-	  printf("Endpoint deallocate: inconsistency owned\n");
-	} else {
-	  if (owned_previous == NULL)
-	    task->nw_ep_owned = owned->next;
-	  else
-	    owned_previous->next = owned->next;
-	  owned->next = nw_free_waited;
-	  nw_free_waited = owned;
-	  if (hect[ep].sig_waiter != NULL &&
-	      hect[ep].sig_waiter->task == task) {
-/*	    if (!shutdown)*/
-	      mk_deliver_result(hect[ep].sig_waiter, NW_ABORTED);
-	    hect[ep].sig_waiter = NULL;
-	  }
-	  w = hect[ep].rx_first;
-	  w_previous = NULL;
-	  while (w != NULL) {
-	    if (w->waiter->task == task) {
-/*	      if (!shutdown)*/
-		mk_deliver_result(w->waiter, NULL);
-	      w_next = w->next;
-	      if (w_previous == NULL)
-		hect[ep].rx_first = w_next;
-	      else
-		w_previous->next = w_next;
-	      w->next = nw_free_waiter;
-	      nw_free_waiter = w;
-	      w = w_next;
-	    } else {
-	      w_previous = w;
-	      w = w->next;
-	    }
-	  }
-	  if (hect[ep].rx_first == NULL)
-	    hect[ep].rx_last = NULL;
-	  w = hect[ep].tx_first;
-	  w_previous = NULL;
-	  while (w != NULL) {
-	    if (w->waiter->task == task) {
-/*	      if (!shutdown)*/
-		mk_deliver_result(w->waiter, NW_ABORTED);
-	      w_next = w->next;
-	      if (w_previous == NULL)
-		hect[ep].tx_first = w_next;
-	      else
-		w_previous->next = w_next;
-	      w->next = nw_free_waiter;
-	      nw_free_waiter = w;
-	      w = w_next;
-	    } else {
-	      w_previous = w;
-	      w = w->next;
-	    }
-	  }
-	  if (hect[ep].tx_first == NULL)
-	    hect[ep].tx_last = NULL;
-	  if (hect[ep].pv == NULL) {
-	    if (ect[ep].state != NW_UNCONNECTED) {
-	      rc = (*(devct[NW_DEVICE(ect[ep].conn->peer.rem_addr_1)].entry->
-		         close)) (ep);
-	      if (rc == NW_SYNCH) {
-		hect[ep].sig_waiter = current_thread();
-		assert_wait(0, TRUE);
-		simple_unlock(&nw_simple_lock);
-		thread_block((void (*)()) 0);
-	      }
-	    }
-	    rc = nc_endpoint_deallocate(ep);
-	  }
-	}
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-nw_result mk_endpoint_deallocate(nw_ep ep) {
-
-  mk_endpoint_deallocate_internal(ep, current_task(), FALSE);
-}
-
-
-nw_buffer_t mk_buffer_allocate(nw_ep ep, u_int size) {
-  nw_buffer_t buf;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    buf = NW_BUFFER_ERROR;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      buf = NW_BUFFER_ERROR;
-    } else {
-      buf = nc_buffer_allocate(ep, size);
-      if (buf != NULL) {
-	buf = (nw_buffer_t) ((char *) buf - ect[ep].buf_start + pv->buf_start);
-      }
-    }
-  }
-  nw_unlock();
-  return buf;
-}
-
-
-
-nw_result mk_buffer_deallocate(nw_ep ep, nw_buffer_t buffer) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      if ((char *) buffer < pv->buf_start ||
-	  (char *) buffer + sizeof(nw_buffer_s) > pv->buf_end ||
-	  !buffer->buf_used ||
-	  (char *) buffer + buffer->buf_length > pv->buf_end) {
-	rc = NW_BAD_BUFFER;
-      } else {
-	buffer = (nw_buffer_t) ((char *) buffer - pv->buf_start +
-				ect[ep].buf_start);
-	rc = nc_buffer_deallocate(ep, buffer);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_connection_open_internal(nw_ep local_ep, nw_address_1 rem_addr_1,
-               		      nw_address_2 rem_addr_2, nw_ep remote_ep) {
-  nw_result rc;
-  
-  rc = (*devct[NW_DEVICE(rem_addr_1)].entry->open) (local_ep,
-						    rem_addr_1, rem_addr_2,
-						    remote_ep);
-  if (rc == NW_SYNCH) {
-    hect[local_ep].sig_waiter = current_thread();
-    assert_wait(0, TRUE);
-    simple_unlock(&nw_simple_lock);
-    thread_block((void (*)()) 0);
-  }
-  return rc;
-}
-  
-nw_result mk_connection_open(nw_ep local_ep, nw_address_1 rem_addr_1,
-			     nw_address_2 rem_addr_2, nw_ep remote_ep) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (local_ep >= MAX_EP || (pv = hect[local_ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      rc = (*(devct[NW_DEVICE(rem_addr_1)].entry->open))
-	      (local_ep, rem_addr_1, rem_addr_2, remote_ep);
-      if (rc == NW_SYNCH) {
-	hect[local_ep].sig_waiter = current_thread();
-	assert_wait(0, TRUE);
-	current_thread()->nw_ep_waited = NULL;
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_connection_accept(nw_ep ep, nw_buffer_t msg,
-			       nw_ep_t new_epp) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else if ((char *) msg < pv->buf_start ||
-	       (char *) msg + sizeof(nw_buffer_s) > pv->buf_end ||
-	       !msg->buf_used ||
-	       (char *) msg + msg->buf_length > pv->buf_end) {
-      rc = NW_BAD_BUFFER;
-    } else if (new_epp != NULL &&
-	       (invalid_user_access(current_task()->map, (vm_offset_t) new_epp,
-				   (vm_offset_t) new_epp + sizeof(nw_ep) - 1,
-				   VM_PROT_READ | VM_PROT_WRITE) ||
-		(*new_epp != 0 && *new_epp != ep))) {
-      rc = NW_INVALID_ARGUMENT;
-    } else {
-      rc = (*(devct[NW_DEVICE(ect[ep].conn->peer.rem_addr_1)].entry->accept))
-	      (ep, msg, new_epp);
-      if (rc == NW_SYNCH) {
-	hect[ep].sig_waiter = current_thread();
-	assert_wait(0, TRUE);
-	current_thread()->nw_ep_waited = NULL;
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-nw_result mk_connection_close(nw_ep ep) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      rc = (*devct[NW_DEVICE(ect[ep].conn->peer.rem_addr_1)].entry->close)
-	      (ep);
-      if (rc == NW_SYNCH) {
-	hect[ep].sig_waiter = current_thread();
-	assert_wait(0, TRUE);
-	current_thread()->nw_ep_waited = NULL;
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_multicast_add(nw_ep local_ep, nw_address_1 rem_addr_1,
-			   nw_address_2 rem_addr_2, nw_ep remote_ep) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (local_ep >= MAX_EP || (pv = hect[local_ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      rc = (*(devct[NW_DEVICE(rem_addr_1)].entry->add))
- 	      (local_ep, rem_addr_1, rem_addr_2, remote_ep);
-      if (rc == NW_SYNCH) {
-	hect[local_ep].sig_waiter = current_thread();
-	assert_wait(0, TRUE);
-	current_thread()->nw_ep_waited = NULL;
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_multicast_drop(nw_ep local_ep, nw_address_1 rem_addr_1,
-			    nw_address_2 rem_addr_2, nw_ep remote_ep) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (local_ep >= MAX_EP || (pv = hect[local_ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      rc = (*(devct[NW_DEVICE(rem_addr_1)].entry->drop))
-	      (local_ep, rem_addr_1, rem_addr_2, remote_ep);
-      if (rc == NW_SYNCH) {
-	hect[local_ep].sig_waiter = current_thread();
-	assert_wait(0, TRUE);
-	current_thread()->nw_ep_waited = NULL;
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_endpoint_status(nw_ep ep, nw_state_t state,
-			     nw_peer_t peer) {
-  nw_result rc;
-  nw_pv_t pv;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      if (invalid_user_access(current_task()->map, (vm_offset_t) state,
-			      (vm_offset_t) state + sizeof(nw_state) - 1,
-			      VM_PROT_WRITE) ||
-	  invalid_user_access(current_task()->map, (vm_offset_t) peer,
-			      (vm_offset_t) peer + sizeof(nw_peer_s) - 1,
-			      VM_PROT_WRITE)) {
-	rc = NW_INVALID_ARGUMENT;
-      } else {
-	rc = nc_endpoint_status(ep, state, peer);
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_result mk_send(nw_ep ep, nw_buffer_t msg, nw_options options) {
-  nw_result rc;
-  nw_pv_t pv;
-  nw_ep sender;
-  int dev;
-  nw_ecb_t ecb;
-  nw_tx_header_t header, first_header, previous_header;
-  nw_hecb_t hecb;
-  nw_waiter_t w;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BAD_EP;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_PROT_VIOLATION;
-    } else {
-      ecb = &ect[ep];
-      if (ecb->state == NW_INEXISTENT ||
-	  (ecb->protocol == NW_SEQ_PACKET && ecb->conn == NULL)) {
-	rc = NW_BAD_EP;
-      } else {
-	first_header = header = nc_tx_header_allocate();
-	previous_header = NULL;
-	rc = NW_SUCCESS;
-	while (header != NULL) {
-	  if ((char *) msg < pv->buf_start ||
-	      (char *) msg + sizeof(nw_buffer_s) > pv->buf_end ||
-	      ((int) msg & 0x3) || (msg->block_offset & 0x3) ||
-	      (msg->block_length & 0x3) || !msg->buf_used ||
-	      (char *) msg + msg->buf_length > pv->buf_end ||
-	      msg->block_offset + msg->block_length > msg->buf_length) {
-	    rc = NW_BAD_BUFFER;
-	    break;
-	  } else {
-	    if (previous_header == NULL) {
-	      if (ecb->protocol == NW_SEQ_PACKET)
-		header->peer = ecb->conn->peer;
-	      else
-		header->peer = msg->peer;
-	    } else {
-	      previous_header->next = header;
-	    }
-	    header->buffer = (nw_buffer_t) ((char *) msg - pv->buf_start +
-					    ecb->buf_start);
-	    header->block = (char *) header->buffer + msg->block_offset;
-	    if (!msg->block_deallocate)
-	      header->buffer = NULL;
-	    header->msg_length = 0;
-	    header->block_length = msg->block_length;
-	    first_header->msg_length += header->block_length;
-	    header->next = NULL;
-	    if (msg->buf_next == NULL)
-	      break;
-	    msg = msg->buf_next;
-	    previous_header = header;
-	    header = nc_tx_header_allocate();
-	  }
-	}
-	if (header == NULL) {
-	  nc_tx_header_deallocate(first_header);
-	  rc = NW_NO_RESOURCES;
-	} else if (rc == NW_SUCCESS) {
-	  dev = NW_DEVICE(first_header->peer.rem_addr_1);
-	  if (ecb->protocol != NW_DATAGRAM ||
-	      devct[dev].type != NW_CONNECTION_ORIENTED) {
-	    sender = first_header->peer.local_ep;
-	    rc = NW_SUCCESS;
-	  } else {
-	    sender = nc_line_lookup(&first_header->peer);
-	    if (sender == -1) {
-	      rc = NW_BAD_ADDRESS;
-	    } else if (sender > 0) {
-	      rc = NW_SUCCESS;
-	    } else {
-	      rc = mk_endpoint_allocate_internal(&sender, NW_LINE,
-						 NW_AUTO_ACCEPT, 0, TRUE);
-	      if (rc == NW_SUCCESS) {
-		rc = mk_connection_open_internal(sender,
-			                first_header->peer.rem_addr_1,
-					first_header->peer.rem_addr_2,
-					MASTER_LINE_EP);
-		if (rc == NW_SUCCESS) 
-		  nc_line_update(&first_header->peer, sender);
-	      }
-	    }
-	  }
-	  if (rc == NW_SUCCESS) {
-	    first_header->sender = sender;
-	    first_header->options = options;
-	    rc = (*(devct[dev].entry->send)) (sender, first_header, options);
-	    if ((rc == NW_SYNCH || rc == NW_QUEUED) &&
-		nw_free_waiter != NULL) {
-	      w = nw_free_waiter;
-	      nw_free_waiter = w->next;
-	      w->waiter = current_thread();
-	      w->next = NULL;
-	      hecb = &hect[sender];
-	      if (hecb->tx_last == NULL) {
-		hecb->tx_first = hecb->tx_last = w;
-	      } else {
-		hecb->tx_last = hecb->tx_last->next = w;
-	      }
-	      assert_wait(0, TRUE);
-	      current_thread()->nw_ep_waited = NULL;
-	      simple_unlock(&nw_simple_lock);
-	      thread_block(mk_return);
-	    }
-	  }
-	}
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_buffer_t mk_receive(nw_ep ep, int time_out) {
-  nw_buffer_t rc;
-  nw_pv_t pv;
-  nw_ecb_t ecb;
-  nw_rx_header_t header;
-  nw_hecb_t hecb;
-  nw_waiter_t w;
-  nw_ep_owned_t waited;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BUFFER_ERROR;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_BUFFER_ERROR;
-    } else {
-      ecb = &ect[ep];
-      header = ecb->rx_first;
-      if (header != NULL) {
-	rc = (nw_buffer_t) ((char *) header->buffer - ecb->buf_start +
-			     pv->buf_start);
-	ecb->rx_first = header->next;
-	if (ecb->rx_first == NULL)
-	  ecb->rx_last = NULL;
-	nc_rx_header_deallocate(header);
-      } else if (time_out != 0 && nw_free_waiter != NULL &&
-		 (time_out == -1 || nw_free_waited != NULL)) {
-	w = nw_free_waiter;
-	nw_free_waiter = w->next;
-	w->waiter = current_thread();
-	w->next = NULL;
-	hecb = &hect[ep];
-	if (hecb->rx_last == NULL)
-	  hecb->rx_first = hecb->rx_last = w;
-	else
-	  hecb->rx_last = hecb->rx_last->next = w;
-	assert_wait(0, TRUE);
-	if (time_out != -1) {
-	  waited = nw_free_waited;
-	  nw_free_waited = waited->next;
-	  waited->ep = ep;
-	  waited->next = NULL;
-	  current_thread()->nw_ep_waited = waited;
-	  current_thread()->wait_result = NULL;
-	  if (!current_thread()->timer.set) 
-	    thread_set_timeout(time_out);
-	} else {
-	  current_thread()->nw_ep_waited = NULL;
-	}
-	simple_unlock(&nw_simple_lock);
-	thread_block(mk_return);
-      } else {
-	rc = NULL;
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-
-nw_buffer_t mk_rpc(nw_ep ep, nw_buffer_t msg, nw_options options,
-		   int time_out) {
-  nw_buffer_t rc;
-  nw_result nrc;
-  nw_ep sender;
-  int dev;
-  nw_pv_t pv;
-  nw_ecb_t ecb;
-  nw_tx_header_t header, first_header, previous_header;
-  nw_hecb_t hecb;
-  nw_waiter_t w;
-  nw_ep_owned_t waited;
-
-  nw_lock();
-  if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-    rc = NW_BUFFER_ERROR;
-  } else {
-    while (pv != NULL && pv->owner != current_task())
-      pv = pv->next;
-    if (pv == NULL) {
-      rc = NW_BUFFER_ERROR;
-    } else {
-      ecb = &ect[ep];
-      if (ecb->state == NW_INEXISTENT ||
-	  (ecb->protocol == NW_SEQ_PACKET && ecb->conn == NULL)) {
-	rc = NW_BUFFER_ERROR;
-      } else {
-	first_header = header = nc_tx_header_allocate();
-	previous_header = NULL;
-	rc = NULL;
-	while (header != NULL) {
-	  if ((char *) msg < pv->buf_start ||
-	      (char *) msg + sizeof(nw_buffer_s) > pv->buf_end ||
-	      ((int) msg & 0x3) || (msg->block_offset & 0x3) ||
-	      (msg->block_length & 0x3) || !msg->buf_used ||
-	      (char *) msg + msg->buf_length > pv->buf_end ||
-	      msg->block_offset + msg->block_length > msg->buf_length) {
-	    rc = NW_BUFFER_ERROR;
-	    break;
-	  } else {
-	    if (previous_header == NULL) {
-	      if (ecb->protocol == NW_SEQ_PACKET)
-		header->peer = ecb->conn->peer;
-	      else
-		header->peer = msg->peer;
-	    } else {
-	      previous_header->next = header;
-	    }
-	    header->buffer = (nw_buffer_t) ((char *) msg - pv->buf_start +
-					    ecb->buf_start);
-	    header->block = (char *) header->buffer + msg->block_offset;
-	    if (!msg->block_deallocate)
-	      header->buffer = NULL;
-	    header->msg_length = 0;
-	    header->block_length = msg->block_length;
-	    first_header->msg_length += header->block_length;
-	    header->next = NULL;
-	    if (msg->buf_next == NULL)
-	      break;
-	    msg = msg->buf_next;
-	    previous_header = header;
-	    header = nc_tx_header_allocate();
-	  }
-	}
-	if (header == NULL) {
-	  nc_tx_header_deallocate(first_header);
-	  rc = NW_BUFFER_ERROR;
-	} else if (rc != NW_BUFFER_ERROR) {
-	  dev = NW_DEVICE(first_header->peer.rem_addr_1);
-	  if (ecb->protocol != NW_DATAGRAM ||
-	      devct[dev].type != NW_CONNECTION_ORIENTED) {
-	    sender = first_header->peer.local_ep;
-	    nrc = NW_SUCCESS;
-	  } else {
-	    sender = nc_line_lookup(&first_header->peer);
-	    if (sender == -1) {
-	      nrc = NW_BAD_ADDRESS;
-	    } else if (sender > 0) {
-	      nrc = NW_SUCCESS;
-	    } else {
-	      nrc = mk_endpoint_allocate_internal(&sender, NW_LINE,
-						  NW_AUTO_ACCEPT, 0, TRUE);
-	      if (nrc == NW_SUCCESS) {
-		nrc = mk_connection_open_internal(sender,
-			                first_header->peer.rem_addr_1,
-					first_header->peer.rem_addr_2,
-					MASTER_LINE_EP);
-		if (nrc == NW_SUCCESS) 
-		  nc_line_update(&first_header->peer, sender);
-	      }
-	    }
-	  }
-	  if (nrc == NW_SUCCESS) {
-	    first_header->sender = sender;
-	    first_header->options = options;
-	    rc = (*(devct[dev].entry->rpc)) (sender, first_header, options);
-	    if (rc != NULL && rc != NW_BUFFER_ERROR) {
-	      rc = (nw_buffer_t) ((char *) rc - ecb->buf_start +
-				  pv->buf_start);
-	    } else if (rc == NULL && time_out != 0 && nw_free_waiter != NULL &&
-		       (time_out == -1 || nw_free_waited != NULL)) {
-	      w = nw_free_waiter;
-	      nw_free_waiter = w->next;
-	      w->waiter = current_thread();
-	      w->next = NULL;
-	      hecb = &hect[ep];
-	      if (hecb->rx_last == NULL)
-		hecb->rx_first = hecb->rx_last = w;
-	      else
-		hecb->rx_last = hecb->rx_last->next = w;
-	      assert_wait(0, TRUE);
-	      if (time_out != -1) {
-		waited = nw_free_waited;
-		nw_free_waited = waited->next;
-		waited->ep = ep;
-		waited->next = NULL;
-		current_thread()->nw_ep_waited = waited;
-		current_thread()->wait_result = NULL;
-		if (!current_thread()->timer.set) 
-		  thread_set_timeout(time_out);
-	      } else {
-		current_thread()->nw_ep_waited = NULL;
-	      }
-	      simple_unlock(&nw_simple_lock);
-	      thread_block(mk_return);
-	    }
-	  }
-	}
-      }
-    }
-  }
-  nw_unlock();
-  return rc;
-}
-
-nw_buffer_t mk_select(u_int nep, nw_ep_t epp, int time_out) {
-  nw_buffer_t rc;
-  nw_pv_t pv;
-  int i;
-  nw_ep ep;
-  nw_ecb_t ecb;
-  nw_rx_header_t header;
-  nw_hecb_t hecb;
-  nw_waiter_t w, w_next;
-  nw_ep_owned_t waited;
-
-  if (invalid_user_access(current_task()->map, (vm_offset_t) epp,
-			  (vm_offset_t) epp + nep*sizeof(nw_ep) - 1,
-			  VM_PROT_READ)) {
-    rc = NW_BUFFER_ERROR;
-  } else {
-    nw_lock();
-    for (i = 0; i < nep; i++) {
-      ep = epp[i];
-      if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
-	rc = NW_BUFFER_ERROR;
-	break;
-      } else {
-	while (pv != NULL && pv->owner != current_task())
-	  pv = pv->next;
-	if (pv == NULL) {
-	  rc = NW_BUFFER_ERROR;
-	  break;
-	} else {
-	  ecb = &ect[ep];
-	  header = ecb->rx_first;
-	  if (header != NULL) {
-	    rc = (nw_buffer_t) ((char *) header->buffer - ecb->buf_start +
-				 pv->buf_start);
-	    ecb->rx_first = header->next;
-	    if (ecb->rx_first == NULL)
-	      ecb->rx_last = NULL;
-	    nc_rx_header_deallocate(header);
-	    break;
-	  }
-	}
-      }
-    }
-    if (i == nep) {
-      if (time_out == 0) {
-	rc = NULL;
-      } else {
-	w = nw_free_waiter;
-	waited = nw_free_waited;
-	i = 0;
-	while (i < nep &&
-	       nw_free_waiter != NULL && nw_free_waited != NULL) {
-	  nw_free_waiter = nw_free_waiter->next;
-	  nw_free_waited = nw_free_waited->next;
-	  i++;
-	}
-	if (i < nep) {
-	  nw_free_waiter = w;
-	  nw_free_waited = waited;
-	  rc = NW_BUFFER_ERROR;
-	} else {
-	  current_thread()->nw_ep_waited = waited;
-	  for (i = 0; i < nep; i++) {
-	    ep = epp[i];
-	    waited->ep = ep;
-	    if (i < nep-1)
-	      waited = waited->next;
-	    else
-	      waited->next = NULL;
-	    w->waiter = current_thread();
-	    w_next = w->next;
-	    w->next = NULL;
-	    hecb = &hect[ep];
-	    if (hecb->rx_last == NULL)
-	      hecb->rx_first = hecb->rx_last = w;
-	    else
-	      hecb->rx_last = hecb->rx_last->next = w;
-	    w = w_next;
-	  }
-	  assert_wait(0, TRUE);
-	  if (time_out != -1) {
-	    current_thread()->wait_result = NULL;
-	    if (!current_thread()->timer.set) 
-	      thread_set_timeout(time_out);
-	  }
-	  simple_unlock(&nw_simple_lock);
-	  thread_block(mk_return);
-	}
-      }
-    }
-    nw_unlock();
-  }
-  return rc;
-}
-
-
-/*** System-dependent support ***/
-
-void mk_endpoint_collect(task_t task) {
-  
-  while (task->nw_ep_owned != NULL) {
-    mk_endpoint_deallocate_internal(task->nw_ep_owned->ep, task, TRUE);
-  }
-}
-
-void mk_waited_collect(thread_t thread) {
-  nw_hecb_t hecb;
-  nw_waiter_t w, w_previous;
-  nw_ep_owned_t waited, waited_previous;
-
-  waited = thread->nw_ep_waited;
-  if (waited != NULL) {
-    while (waited != NULL) {
-      hecb = &hect[waited->ep];
-      w = hecb->rx_first;
-      w_previous = NULL;
-      while (w != NULL && w->waiter != thread) {
-	w_previous = w;
-	w = w->next;
-      }
-      if (w != NULL) {
-	if (w_previous == NULL)
-	  hecb->rx_first = w->next;
-	else
-	  w_previous->next = w->next;
-	if (w->next == NULL)
-	  hecb->rx_last = w_previous;
-	w->next = nw_free_waiter;
-	nw_free_waiter = w;
-      }
-      waited_previous = waited;
-      waited = waited->next;
-    }
-    waited_previous->next = nw_free_waited;
-    nw_free_waited = thread->nw_ep_waited;
-    thread->nw_ep_waited = NULL;
-  }
-}
-
-void mk_return() {
-
-  thread_syscall_return(current_thread()->wait_result);
-}
-  
-
-boolean_t mk_deliver_result(thread_t thread, int result) {
-  boolean_t rc;
-  int state, s;
-  
-  s = splsched();
-  thread_lock(thread);
-  state = thread->state;
-
-  reset_timeout_check(&thread->timer);
-
-  switch (state & TH_SCHED_STATE) {
-  case          TH_WAIT | TH_SUSP | TH_UNINT:
-  case          TH_WAIT           | TH_UNINT:
-  case          TH_WAIT:
-    /*
-     *      Sleeping and not suspendable - put on run queue.
-     */
-    thread->state = (state &~ TH_WAIT) | TH_RUN;
-    thread->wait_result = (kern_return_t) result;
-    simpler_thread_setrun(thread, TRUE);
-    rc = TRUE;
-    break;
-    
-  case          TH_WAIT | TH_SUSP:
-  case TH_RUN | TH_WAIT:
-  case TH_RUN | TH_WAIT | TH_SUSP:
-  case TH_RUN | TH_WAIT           | TH_UNINT:
-  case TH_RUN | TH_WAIT | TH_SUSP | TH_UNINT:
-    /*
-     *      Either already running, or suspended.
-     */
-    thread->state = state &~ TH_WAIT;
-    thread->wait_result = (kern_return_t) result;
-    rc = FALSE;
-    break;
-
-  default:
-    /*
-     *      Not waiting.
-     */
-    rc = FALSE;
-    break;
-  }
-  thread_unlock(thread);
-  splx(s);
-  return rc;
-}
-
-
-boolean_t nc_deliver_result(nw_ep ep, nw_delivery type, int result) {
-  boolean_t rc;
-  nw_hecb_t hecb;
-  nw_ecb_t ecb;
-  nw_waiter_t w;
-  thread_t thread;
-  task_t task;
-  nw_pv_t pv;
-  nw_buffer_t buf;
-  nw_rx_header_t rx_header;
-  nw_tx_header_t tx_header;
-  nw_ep lep;
-
-  hecb = &hect[ep];
-  ecb = &ect[ep];
-
-  thread = NULL;
-  if (type == NW_RECEIVE || type == NW_RECEIVE_URGENT) {
-    w = hecb->rx_first;
-    if (w != NULL) {
-      thread = w->waiter;
-      hecb->rx_first = w->next;
-      if (hecb->rx_first == NULL)
-	hecb->rx_last = NULL;
-      w->next = nw_free_waiter;
-      nw_free_waiter = w;
-      task = thread->task;
-      pv = hecb->pv;
-      while (pv != NULL && pv->owner != task)
-	pv = pv->next;
-      if (pv == NULL) {
-	rc = FALSE;
-      } else {
-	buf = (nw_buffer_t) ((char *) result - ecb->buf_start + pv->buf_start);
-	rc = mk_deliver_result(thread, (int) buf);
-      }
-    } else {
-      rx_header = nc_rx_header_allocate();
-      if (rx_header == NULL) {
-	rc = FALSE;
-      } else {
-	rx_header->buffer = (nw_buffer_t) result;
-	if (type == NW_RECEIVE) {
-	  rx_header->next = NULL;
-	  if (ecb->rx_last == NULL)
-	    ecb->rx_first = rx_header;
-	  else
-	    ecb->rx_last->next = rx_header;
-	  ecb->rx_last = rx_header;
-	} else {
-	  rx_header->next = ecb->rx_first;
-	  if (ecb->rx_first == NULL)
-	    ecb->rx_last = rx_header;
-	  ecb->rx_first = rx_header;
-	}
-	rc = TRUE;
-      } 
-    }
-  } else if (type == NW_SEND) {
-    w = hecb->tx_first;
-    if (w == NULL) {
-      rc = FALSE;
-    } else {
-      thread = w->waiter;
-      hecb->tx_first = w->next;
-      if (hecb->tx_first == NULL)
-	hecb->tx_last = NULL;
-      w->next = nw_free_waiter;
-      nw_free_waiter = w;
-      rc = mk_deliver_result(thread, result);
-    }
-    tx_header = ect[ep].tx_initial;
-    if (result == NW_SUCCESS) {
-      lep = tx_header->peer.local_ep;
-      while (tx_header != NULL) {
-	if (tx_header->buffer != NULL)
-	  nc_buffer_deallocate(lep, tx_header->buffer);
-	tx_header = tx_header->next;
-      }
-    }
-    nc_tx_header_deallocate(ect[ep].tx_initial);
-    ect[ep].tx_initial = ect[ep].tx_current = NULL;
-  } else if (type == NW_SIGNAL) {
-    thread = hecb->sig_waiter;
-    hecb->sig_waiter = NULL;
-    if (thread == NULL) {
-      rc = FALSE;
-    } else {
-      rc = mk_deliver_result(thread, result);
-    }
-  }
-  return rc;
-}
-    
-int mk_fast_sweep() {
-
-  nw_lock();
-  nc_fast_sweep();
-  nw_unlock();
-  return 0;
-}
-
-void h_fast_timer_set() {
-  
-#ifdef PRODUCTION
-  if (!nw_fast_timer.set)
-    set_timeout(&nw_fast_timer, 1);
-#endif
-}
-
-void h_fast_timer_reset() {
-
-  if (nw_fast_timer.set)
-    reset_timeout(&nw_fast_timer);
-}
-
-int mk_slow_sweep() {
-
-#ifdef PRODUCTION
-  nw_lock();
-  nc_slow_sweep();
-  nw_unlock();
-  set_timeout(&nw_slow_timer, 2*hz);
-  return 0;
-#endif
-}
-