diff --git a/mk/rt.mk b/mk/rt.mk
index b4cdefd996c..bd935d660ff 100644
--- a/mk/rt.mk
+++ b/mk/rt.mk
@@ -10,7 +10,7 @@ RUNTIME_CS := rt/sync/timer.cpp \
               rt/rust_run_program.cpp \
               rt/rust_crate_cache.cpp \
               rt/rust_comm.cpp \
-              rt/rust_dom.cpp \
+              rt/rust_scheduler.cpp \
               rt/rust_task.cpp \
               rt/rust_task_list.cpp \
               rt/rust_proxy.cpp \
@@ -37,7 +37,7 @@ RUNTIME_HDR := rt/globals.h \
                rt/rust_util.h \
                rt/rust_chan.h \
                rt/rust_port.h \
-               rt/rust_dom.h \
+               rt/rust_scheduler.h \
                rt/rust_task.h \
                rt/rust_task_list.h \
                rt/rust_proxy.h \
diff --git a/src/rt/circular_buffer.cpp b/src/rt/circular_buffer.cpp
index 0239e40f997..8c0067ff002 100644
--- a/src/rt/circular_buffer.cpp
+++ b/src/rt/circular_buffer.cpp
@@ -5,7 +5,7 @@
 #include "rust_internal.h"
 
 circular_buffer::circular_buffer(rust_task *task, size_t unit_sz) :
-    dom(task->dom),
+    sched(task->sched),
     task(task),
     unit_sz(unit_sz),
     _buffer_sz(initial_size()),
@@ -13,26 +13,26 @@ circular_buffer::circular_buffer(rust_task *task, size_t unit_sz) :
     _unread(0),
     _buffer((uint8_t *)task->malloc(_buffer_sz)) {
 
-    A(dom, unit_sz, "Unit size must be larger than zero.");
+    A(sched, unit_sz, "Unit size must be larger than zero.");
 
-    DLOG(dom, mem, "new circular_buffer(buffer_sz=%d, unread=%d)"
+    DLOG(sched, mem, "new circular_buffer(buffer_sz=%d, unread=%d)"
          "-> circular_buffer=0x%" PRIxPTR,
          _buffer_sz, _unread, this);
 
-    A(dom, _buffer, "Failed to allocate buffer.");
+    A(sched, _buffer, "Failed to allocate buffer.");
 }
 
 circular_buffer::~circular_buffer() {
-    DLOG(dom, mem, "~circular_buffer 0x%" PRIxPTR, this);
-    I(dom, _buffer);
-    W(dom, _unread == 0,
+    DLOG(sched, mem, "~circular_buffer 0x%" PRIxPTR, this);
+    I(sched, _buffer);
+    W(sched, _unread == 0,
       "freeing circular_buffer with %d unread bytes", _unread);
     task->free(_buffer);
 }
 
 size_t
 circular_buffer::initial_size() {
-    I(dom, unit_sz > 0);
+    I(sched, unit_sz > 0);
     return INITIAL_CIRCULAR_BUFFER_SIZE_IN_UNITS * unit_sz;
 }
 
@@ -41,8 +41,8 @@ circular_buffer::initial_size() {
  */
 void
 circular_buffer::transfer(void *dst) {
-    I(dom, dst);
-    I(dom, _unread <= _buffer_sz);
+    I(sched, dst);
+    I(sched, _unread <= _buffer_sz);
 
     uint8_t *ptr = (uint8_t *) dst;
 
@@ -54,13 +54,13 @@ circular_buffer::transfer(void *dst) {
     } else {
         head_sz = _buffer_sz - _next;
     }
-    I(dom, _next + head_sz <= _buffer_sz);
+    I(sched, _next + head_sz <= _buffer_sz);
     memcpy(ptr, _buffer + _next, head_sz);
 
     // Then copy any other items from the beginning of the buffer
-    I(dom, _unread >= head_sz);
+    I(sched, _unread >= head_sz);
     size_t tail_sz = _unread - head_sz;
-    I(dom, head_sz + tail_sz <= _buffer_sz);
+    I(sched, head_sz + tail_sz <= _buffer_sz);
     memcpy(ptr + head_sz, _buffer, tail_sz);
 }
 
@@ -70,37 +70,37 @@ circular_buffer::transfer(void *dst) {
  */
 void
 circular_buffer::enqueue(void *src) {
-    I(dom, src);
-    I(dom, _unread <= _buffer_sz);
-    I(dom, _buffer);
+    I(sched, src);
+    I(sched, _unread <= _buffer_sz);
+    I(sched, _buffer);
 
     // Grow if necessary.
     if (_unread == _buffer_sz) {
         grow();
     }
 
-    DLOG(dom, mem, "circular_buffer enqueue "
+    DLOG(sched, mem, "circular_buffer enqueue "
          "unread: %d, next: %d, buffer_sz: %d, unit_sz: %d",
          _unread, _next, _buffer_sz, unit_sz);
 
-    I(dom, _unread < _buffer_sz);
-    I(dom, _unread + unit_sz <= _buffer_sz);
+    I(sched, _unread < _buffer_sz);
+    I(sched, _unread + unit_sz <= _buffer_sz);
 
     // Copy data
     size_t dst_idx = _next + _unread;
-    I(dom, dst_idx >= _buffer_sz || dst_idx + unit_sz <= _buffer_sz);
+    I(sched, dst_idx >= _buffer_sz || dst_idx + unit_sz <= _buffer_sz);
     if (dst_idx >= _buffer_sz) {
         dst_idx -= _buffer_sz;
 
-        I(dom, _next >= unit_sz);
-        I(dom, dst_idx <= _next - unit_sz);
+        I(sched, _next >= unit_sz);
+        I(sched, dst_idx <= _next - unit_sz);
     }
 
-    I(dom, dst_idx + unit_sz <= _buffer_sz);
+    I(sched, dst_idx + unit_sz <= _buffer_sz);
     memcpy(&_buffer[dst_idx], src, unit_sz);
     _unread += unit_sz;
 
-    DLOG(dom, mem, "circular_buffer pushed data at index: %d", dst_idx);
+    DLOG(sched, mem, "circular_buffer pushed data at index: %d", dst_idx);
 }
 
 /**
@@ -110,21 +110,21 @@ circular_buffer::enqueue(void *src) {
  */
 void
 circular_buffer::dequeue(void *dst) {
-    I(dom, unit_sz > 0);
-    I(dom, _unread >= unit_sz);
-    I(dom, _unread <= _buffer_sz);
-    I(dom, _buffer);
+    I(sched, unit_sz > 0);
+    I(sched, _unread >= unit_sz);
+    I(sched, _unread <= _buffer_sz);
+    I(sched, _buffer);
 
-    DLOG(dom, mem,
+    DLOG(sched, mem,
              "circular_buffer dequeue "
              "unread: %d, next: %d, buffer_sz: %d, unit_sz: %d",
              _unread, _next, _buffer_sz, unit_sz);
 
-    I(dom, _next + unit_sz <= _buffer_sz);
+    I(sched, _next + unit_sz <= _buffer_sz);
     if (dst != NULL) {
         memcpy(dst, &_buffer[_next], unit_sz);
     }
-    DLOG(dom, mem, "shifted data from index %d", _next);
+    DLOG(sched, mem, "shifted data from index %d", _next);
     _unread -= unit_sz;
     _next += unit_sz;
     if (_next == _buffer_sz) {
@@ -140,8 +140,8 @@ circular_buffer::dequeue(void *dst) {
 void
 circular_buffer::grow() {
     size_t new_buffer_sz = _buffer_sz * 2;
-    I(dom, new_buffer_sz <= MAX_CIRCULAR_BUFFER_SIZE);
-    DLOG(dom, mem, "circular_buffer is growing to %d bytes", new_buffer_sz);
+    I(sched, new_buffer_sz <= MAX_CIRCULAR_BUFFER_SIZE);
+    DLOG(sched, mem, "circular_buffer is growing to %d bytes", new_buffer_sz);
     void *new_buffer = task->malloc(new_buffer_sz);
     transfer(new_buffer);
     task->free(_buffer);
@@ -153,8 +153,8 @@ circular_buffer::grow() {
 void
 circular_buffer::shrink() {
     size_t new_buffer_sz = _buffer_sz / 2;
-    I(dom, initial_size() <= new_buffer_sz);
-    DLOG(dom, mem, "circular_buffer is shrinking to %d bytes", new_buffer_sz);
+    I(sched, initial_size() <= new_buffer_sz);
+    DLOG(sched, mem, "circular_buffer is shrinking to %d bytes", new_buffer_sz);
     void *new_buffer = task->malloc(new_buffer_sz);
     transfer(new_buffer);
     task->free(_buffer);
diff --git a/src/rt/circular_buffer.h b/src/rt/circular_buffer.h
index 1e686ea6f14..eb1e49494ea 100644
--- a/src/rt/circular_buffer.h
+++ b/src/rt/circular_buffer.h
@@ -10,7 +10,7 @@ circular_buffer : public task_owned<circular_buffer> {
     static const size_t INITIAL_CIRCULAR_BUFFER_SIZE_IN_UNITS = 8;
     static const size_t MAX_CIRCULAR_BUFFER_SIZE = 1 << 24;
 
-    rust_dom *dom;
+    rust_scheduler *sched;
 
 public:
     rust_task *task;
diff --git a/src/rt/rust.cpp b/src/rt/rust.cpp
index c2a56d993d8..02ab54fd2e1 100644
--- a/src/rt/rust.cpp
+++ b/src/rt/rust.cpp
@@ -39,13 +39,13 @@ command_line_args : public kernel_owned<command_line_args>
         size_t vec_fill = sizeof(rust_str *) * argc;
         size_t vec_alloc = next_power_of_two(sizeof(rust_vec) + vec_fill);
         void *mem = kernel->malloc(vec_alloc);
-        args = new (mem) rust_vec(task->dom, vec_alloc, 0, NULL);
+        args = new (mem) rust_vec(task->sched, vec_alloc, 0, NULL);
         rust_str **strs = (rust_str**) &args->data[0];
         for (int i = 0; i < argc; ++i) {
             size_t str_fill = strlen(argv[i]) + 1;
             size_t str_alloc = next_power_of_two(sizeof(rust_str) + str_fill);
             mem = kernel->malloc(str_alloc);
-            strs[i] = new (mem) rust_str(task->dom, str_alloc, str_fill,
+            strs[i] = new (mem) rust_str(task->sched, str_alloc, str_fill,
                                          (uint8_t const *)argv[i]);
         }
         args->fill = vec_fill;
@@ -98,21 +98,21 @@ rust_start(uintptr_t main_fn, int argc, char **argv, void* crate_map) {
     rust_srv *srv = new rust_srv();
     rust_kernel *kernel = new rust_kernel(srv);
     kernel->start();
-    rust_dom *dom = kernel->get_domain();
+    rust_scheduler *sched = kernel->get_scheduler();
     command_line_args *args 
-        = new (kernel) command_line_args(dom->root_task, argc, argv);
+        = new (kernel) command_line_args(sched->root_task, argc, argv);
 
-    DLOG(dom, dom, "startup: %d args in 0x%" PRIxPTR,
+    DLOG(sched, dom, "startup: %d args in 0x%" PRIxPTR,
              args->argc, (uintptr_t)args->args);
     for (int i = 0; i < args->argc; i++) {
-        DLOG(dom, dom, "startup: arg[%d] = '%s'", i, args->argv[i]);
+        DLOG(sched, dom, "startup: arg[%d] = '%s'", i, args->argv[i]);
     }
 
-    dom->root_task->start(main_fn, (uintptr_t)args->args);
+    sched->root_task->start(main_fn, (uintptr_t)args->args);
 
     int num_threads = get_num_threads();
 
-    DLOG(dom, dom, "Using %d worker threads.", num_threads);
+    DLOG(sched, dom, "Using %d worker threads.", num_threads);
 
     int ret = kernel->start_task_threads(num_threads);
     delete args;
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index 76455d0ca99..a7325bc066d 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -9,7 +9,7 @@
 
 extern "C" CDECL rust_str*
 last_os_error(rust_task *task) {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     LOG(task, task, "last_os_error()");
 
 #if defined(__WIN32__)
@@ -47,7 +47,7 @@ last_os_error(rust_task *task) {
         task->fail(1);
         return NULL;
     }
-    rust_str *st = new (mem) rust_str(dom, alloc, fill, (const uint8_t *)buf);
+    rust_str *st = new (mem) rust_str(sched, alloc, fill, (const uint8_t *)buf);
 
 #ifdef __WIN32__
     LocalFree((HLOCAL)buf);
@@ -57,7 +57,7 @@ last_os_error(rust_task *task) {
 
 extern "C" CDECL rust_str *
 rust_getcwd(rust_task *task) {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     LOG(task, task, "rust_getcwd()");
 
     char cbuf[BUF_BYTES];
@@ -80,7 +80,7 @@ rust_getcwd(rust_task *task) {
     }
 
     rust_str *st;
-    st = new (mem) rust_str(dom, alloc, fill, (const uint8_t *)cbuf);
+    st = new (mem) rust_str(sched, alloc, fill, (const uint8_t *)cbuf);
 
     return st;    
 }
@@ -124,7 +124,7 @@ unsupervise(rust_task *task) {
 extern "C" CDECL rust_vec*
 vec_alloc(rust_task *task, type_desc *t, type_desc *elem_t, size_t n_elts)
 {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     LOG(task, mem, "vec_alloc %" PRIdPTR " elements of size %" PRIdPTR,
         n_elts, elem_t->size);
     size_t fill = n_elts * elem_t->size;
@@ -134,7 +134,7 @@ vec_alloc(rust_task *task, type_desc *t, type_desc *elem_t, size_t n_elts)
         task->fail(4);
         return NULL;
     }
-    rust_vec *vec = new (mem) rust_vec(dom, alloc, 0, NULL);
+    rust_vec *vec = new (mem) rust_vec(sched, alloc, 0, NULL);
     return vec;
 }
 
@@ -198,11 +198,11 @@ vec_alloc_with_data(rust_task *task,
                     size_t elt_size,
                     void *d)
 {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     size_t alloc = next_power_of_two(sizeof(rust_vec) + (n_elts * elt_size));
     void *mem = task->malloc(alloc, memory_region::LOCAL);
     if (!mem) return NULL;
-    return new (mem) rust_vec(dom, alloc, fill * elt_size, (uint8_t*)d);
+    return new (mem) rust_vec(sched, alloc, fill * elt_size, (uint8_t*)d);
 }
 
 extern "C" CDECL rust_vec*
@@ -355,13 +355,13 @@ str_from_buf(rust_task *task, char *buf, unsigned int len) {
 extern "C" CDECL void *
 rand_new(rust_task *task)
 {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     randctx *rctx = (randctx *) task->malloc(sizeof(randctx));
     if (!rctx) {
         task->fail(1);
         return NULL;
     }
-    isaac_init(dom, rctx);
+    isaac_init(sched, rctx);
     return rctx;
 }
 
diff --git a/src/rt/rust_chan.cpp b/src/rt/rust_chan.cpp
index bf75c89057b..778fb6b16fd 100644
--- a/src/rt/rust_chan.cpp
+++ b/src/rt/rust_chan.cpp
@@ -22,7 +22,7 @@ rust_chan::rust_chan(rust_task *task,
 rust_chan::~rust_chan() {
     LOG(task, comm, "del rust_chan(task=0x%" PRIxPTR ")", (uintptr_t) this);
 
-    A(task->dom, is_associated() == false,
+    A(task->sched, is_associated() == false,
       "Channel must be disassociated before being freed.");
     --task->ref_count;
 }
@@ -49,7 +49,7 @@ bool rust_chan::is_associated() {
  * Unlink this channel from its associated port.
  */
 void rust_chan::disassociate() {
-    A(task->dom, is_associated(), "Channel must be associated with a port.");
+    A(task->sched, is_associated(), "Channel must be associated with a port.");
 
     if (port->is_proxy() == false) {
         LOG(task, task,
@@ -69,14 +69,14 @@ void rust_chan::disassociate() {
 void rust_chan::send(void *sptr) {
     buffer.enqueue(sptr);
 
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     if (!is_associated()) {
-        W(dom, is_associated(),
+        W(sched, is_associated(),
           "rust_chan::transmit with no associated port.");
         return;
     }
 
-    A(dom, !buffer.is_empty(),
+    A(sched, !buffer.is_empty(),
       "rust_chan::transmit with nothing to send.");
 
     if (port->is_proxy()) {
@@ -86,7 +86,7 @@ void rust_chan::send(void *sptr) {
     } else {
         rust_port *target_port = port->referent();
         if (target_port->task->blocked_on(target_port)) {
-            DLOG(dom, comm, "dequeued in rendezvous_ptr");
+            DLOG(sched, comm, "dequeued in rendezvous_ptr");
             buffer.dequeue(target_port->task->rendezvous_ptr);
             target_port->task->rendezvous_ptr = 0;
             target_port->task->wakeup(target_port);
diff --git a/src/rt/rust_crate_cache.cpp b/src/rt/rust_crate_cache.cpp
index 70509dcae95..7d3822d253a 100644
--- a/src/rt/rust_crate_cache.cpp
+++ b/src/rt/rust_crate_cache.cpp
@@ -7,16 +7,16 @@ rust_crate_cache::get_type_desc(size_t size,
                                 size_t n_descs,
                                 type_desc const **descs)
 {
-    I(dom, n_descs > 1);
+    I(sched, n_descs > 1);
     type_desc *td = NULL;
     size_t keysz = n_descs * sizeof(type_desc*);
     HASH_FIND(hh, this->type_descs, descs, keysz, td);
     if (td) {
-        DLOG(dom, cache, "rust_crate_cache::get_type_desc hit");
+        DLOG(sched, cache, "rust_crate_cache::get_type_desc hit");
         return td;
     }
-    DLOG(dom, cache, "rust_crate_cache::get_type_desc miss");
-    td = (type_desc*) dom->kernel->malloc(sizeof(type_desc) + keysz);
+    DLOG(sched, cache, "rust_crate_cache::get_type_desc miss");
+    td = (type_desc*) sched->kernel->malloc(sizeof(type_desc) + keysz);
     if (!td)
         return NULL;
     // By convention, desc 0 is the root descriptor.
@@ -27,7 +27,7 @@ rust_crate_cache::get_type_desc(size_t size,
     td->size = size;
     td->align = align;
     for (size_t i = 0; i < n_descs; ++i) {
-        DLOG(dom, cache,
+        DLOG(sched, cache,
                  "rust_crate_cache::descs[%" PRIdPTR "] = 0x%" PRIxPTR,
                  i, descs[i]);
         td->descs[i] = descs[i];
@@ -38,22 +38,22 @@ rust_crate_cache::get_type_desc(size_t size,
     return td;
 }
 
-rust_crate_cache::rust_crate_cache(rust_dom *dom)
+rust_crate_cache::rust_crate_cache(rust_scheduler *sched)
     : type_descs(NULL),
-      dom(dom),
+      sched(sched),
       idx(0)
 {
 }
 
 void
 rust_crate_cache::flush() {
-    DLOG(dom, cache, "rust_crate_cache::flush()");
+    DLOG(sched, cache, "rust_crate_cache::flush()");
 
     while (type_descs) {
         type_desc *d = type_descs;
         HASH_DEL(type_descs, d);
-        DLOG(dom, mem, "rust_crate_cache::flush() tydesc %" PRIxPTR, d);
-        dom->kernel->free(d);
+        DLOG(sched, mem, "rust_crate_cache::flush() tydesc %" PRIxPTR, d);
+        sched->kernel->free(d);
     }
 }
 
diff --git a/src/rt/rust_internal.h b/src/rt/rust_internal.h
index ac201fc799c..a57ef607f60 100644
--- a/src/rt/rust_internal.h
+++ b/src/rt/rust_internal.h
@@ -50,7 +50,7 @@ extern "C" {
 #include "sync/lock_and_signal.h"
 #include "sync/lock_free_queue.h"
 
-struct rust_dom;
+struct rust_scheduler;
 struct rust_task;
 class rust_log;
 class rust_port;
@@ -174,7 +174,7 @@ public:
 #include "rust_proxy.h"
 #include "rust_kernel.h"
 #include "rust_message.h"
-#include "rust_dom.h"
+#include "rust_scheduler.h"
 
 struct rust_timer {
     // FIXME: This will probably eventually need replacement
@@ -183,7 +183,7 @@ struct rust_timer {
     // For now it's just the most basic "thread that can interrupt
     // its associated domain-thread" device, so that we have
     // *some* form of task-preemption.
-    rust_dom *dom;
+    rust_scheduler *sched;
     uintptr_t exit_flag;
 
 #if defined(__WIN32__)
@@ -193,7 +193,7 @@ struct rust_timer {
     pthread_t thread;
 #endif
 
-    rust_timer(rust_dom *dom);
+    rust_timer(rust_scheduler *sched);
     ~rust_timer();
 };
 
diff --git a/src/rt/rust_kernel.cpp b/src/rt/rust_kernel.cpp
index ee709fb191f..f3ebfd4f4b9 100644
--- a/src/rt/rust_kernel.cpp
+++ b/src/rt/rust_kernel.cpp
@@ -13,55 +13,55 @@ rust_kernel::rust_kernel(rust_srv *srv) :
     _srv(srv),
     _interrupt_kernel_loop(FALSE) 
 {
-    dom = create_domain("main");
+    sched = create_scheduler("main");
 }
 
-rust_dom *
-rust_kernel::create_domain(const char *name) {
+rust_scheduler *
+rust_kernel::create_scheduler(const char *name) {
     _kernel_lock.lock();
     rust_message_queue *message_queue =
         new (this) rust_message_queue(_srv, this);
     rust_srv *srv = _srv->clone();
-    rust_dom *dom =
-        new (this) rust_dom(this, message_queue, srv, name);
-    rust_handle<rust_dom> *handle = internal_get_dom_handle(dom);
+    rust_scheduler *sched =
+        new (this) rust_scheduler(this, message_queue, srv, name);
+    rust_handle<rust_scheduler> *handle = internal_get_sched_handle(sched);
     message_queue->associate(handle);
     message_queues.append(message_queue);
-    KLOG("created domain: " PTR ", name: %s, index: %d",
-         dom, name, dom->list_index);
+    KLOG("created scheduler: " PTR ", name: %s, index: %d",
+         sched, name, sched->list_index);
     _kernel_lock.signal_all();
     _kernel_lock.unlock();
-    return dom;
+    return sched;
 }
 
 void
-rust_kernel::destroy_domain() {
+rust_kernel::destroy_scheduler() {
     _kernel_lock.lock();
-    KLOG("deleting domain: " PTR ", name: %s, index: %d",
-        dom, dom->name, dom->list_index);
-    dom->message_queue->disassociate();
-    rust_srv *srv = dom->srv;
-    delete dom;
+    KLOG("deleting scheduler: " PTR ", name: %s, index: %d",
+        sched, sched->name, sched->list_index);
+    sched->message_queue->disassociate();
+    rust_srv *srv = sched->srv;
+    delete sched;
     delete srv;
     _kernel_lock.signal_all();
     _kernel_lock.unlock();
 }
 
-rust_handle<rust_dom> *
-rust_kernel::internal_get_dom_handle(rust_dom *dom) {
-    rust_handle<rust_dom> *handle = NULL;
-    if (_dom_handles.get(dom, &handle) == false) {
+rust_handle<rust_scheduler> *
+rust_kernel::internal_get_sched_handle(rust_scheduler *sched) {
+    rust_handle<rust_scheduler> *handle = NULL;
+    if (_sched_handles.get(sched, &handle) == false) {
         handle =
-            new (this) rust_handle<rust_dom>(this, dom->message_queue, dom);
-        _dom_handles.put(dom, handle);
+            new (this) rust_handle<rust_scheduler>(this, sched->message_queue, sched);
+        _sched_handles.put(sched, handle);
     }
     return handle;
 }
 
-rust_handle<rust_dom> *
-rust_kernel::get_dom_handle(rust_dom *dom) {
+rust_handle<rust_scheduler> *
+rust_kernel::get_sched_handle(rust_scheduler *sched) {
     _kernel_lock.lock();
-    rust_handle<rust_dom> *handle = internal_get_dom_handle(dom);
+    rust_handle<rust_scheduler> *handle = internal_get_sched_handle(sched);
     _kernel_lock.unlock();
     return handle;
 }
@@ -72,7 +72,7 @@ rust_kernel::get_task_handle(rust_task *task) {
     rust_handle<rust_task> *handle = NULL;
     if (_task_handles.get(task, &handle) == false) {
         handle =
-            new (this) rust_handle<rust_task>(this, task->dom->message_queue,
+            new (this) rust_handle<rust_task>(this, task->sched->message_queue,
                                               task);
         _task_handles.put(task, handle);
     }
@@ -87,7 +87,7 @@ rust_kernel::get_port_handle(rust_port *port) {
     if (_port_handles.get(port, &handle) == false) {
         handle =
             new (this) rust_handle<rust_port>(this,
-                                              port->task->dom->message_queue,
+                                              port->task->sched->message_queue,
                                               port);
         _port_handles.put(port, handle);
     }
@@ -96,9 +96,8 @@ rust_kernel::get_port_handle(rust_port *port) {
 }
 
 void
-rust_kernel::log_all_domain_state() {
-    KLOG("log_all_domain_state");
-    dom->log_state();
+rust_kernel::log_all_scheduler_state() {
+    sched->log_state();
 }
 
 /**
@@ -159,7 +158,7 @@ rust_kernel::terminate_kernel_loop() {
 }
 
 rust_kernel::~rust_kernel() {
-    destroy_domain();
+    destroy_scheduler();
 
     terminate_kernel_loop();
 
@@ -175,8 +174,8 @@ rust_kernel::~rust_kernel() {
     KLOG("..task handles freed");
     free_handles(_port_handles);
     KLOG("..port handles freed");
-    free_handles(_dom_handles);
-    KLOG("..dom handles freed");
+    free_handles(_sched_handles);
+    KLOG("..sched handles freed");
 
     KLOG("freeing queues");
 
@@ -235,14 +234,14 @@ int rust_kernel::start_task_threads(int num_threads)
         threads.push(thread);
     }
     
-    dom->start_main_loop(0);
+    sched->start_main_loop(0);
 
     while(threads.pop(&thread)) {
         thread->join();
         delete thread;
     }
 
-    return dom->rval;
+    return sched->rval;
 }
 
 #ifdef __WIN32__
@@ -257,9 +256,9 @@ rust_kernel::win32_require(LPCTSTR fn, BOOL ok) {
                       NULL, err,
                       MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                       (LPTSTR) &buf, 0, NULL );
-        DLOG_ERR(dom, dom, "%s failed with error %ld: %s", fn, err, buf);
+        DLOG_ERR(sched, dom, "%s failed with error %ld: %s", fn, err, buf);
         LocalFree((HLOCAL)buf);
-        I(dom, ok);
+        I(sched, ok);
     }
 }
 #endif
@@ -271,7 +270,7 @@ rust_task_thread::rust_task_thread(int id, rust_kernel *owner)
 
 void rust_task_thread::run()
 {
-    owner->dom->start_main_loop(id);
+    owner->sched->start_main_loop(id);
 }
 
 //
diff --git a/src/rt/rust_kernel.h b/src/rt/rust_kernel.h
index b3befab28d2..a1fba33bf89 100644
--- a/src/rt/rust_kernel.h
+++ b/src/rt/rust_kernel.h
@@ -52,7 +52,7 @@ class rust_kernel : public rust_thread {
      */
     hash_map<rust_task *, rust_handle<rust_task> *> _task_handles;
     hash_map<rust_port *, rust_handle<rust_port> *> _port_handles;
-    hash_map<rust_dom *, rust_handle<rust_dom> *> _dom_handles;
+    hash_map<rust_scheduler *, rust_handle<rust_scheduler> *> _sched_handles;
 
     template<class T> void free_handles(hash_map<T*, rust_handle<T>* > &map);
 
@@ -65,15 +65,16 @@ class rust_kernel : public rust_thread {
     void terminate_kernel_loop();
     void pump_message_queues();
 
-    rust_handle<rust_dom> *internal_get_dom_handle(rust_dom *dom);
+    rust_handle<rust_scheduler> *
+    internal_get_sched_handle(rust_scheduler *sched);
 
-    rust_dom *create_domain(const char *name);
-    void destroy_domain();
+    rust_scheduler *create_scheduler(const char *name);
+    void destroy_scheduler();
 
     array_list<rust_task_thread *> threads;
 
 public:
-    rust_dom *dom;
+    rust_scheduler *sched;
     lock_and_signal scheduler_lock;
 
     /**
@@ -85,7 +86,7 @@ public:
      */
     indexed_list<rust_message_queue> message_queues;
 
-    rust_handle<rust_dom> *get_dom_handle(rust_dom *dom);
+    rust_handle<rust_scheduler> *get_sched_handle(rust_scheduler *sched);
     rust_handle<rust_task> *get_task_handle(rust_task *task);
     rust_handle<rust_port> *get_port_handle(rust_port *port);
 
@@ -103,7 +104,7 @@ public:
     void
     notify_message_enqueued(rust_message_queue *queue, rust_message *message);
 
-    void log_all_domain_state();
+    void log_all_scheduler_state();
     void log(uint32_t level, char const *fmt, ...);
     virtual ~rust_kernel();
 
@@ -111,7 +112,7 @@ public:
     void free(void *mem);
 
     // FIXME: this should go away
-    inline rust_dom *get_domain() const { return dom; }
+    inline rust_scheduler *get_scheduler() const { return sched; }
 
     int start_task_threads(int num_threads);
 
diff --git a/src/rt/rust_log.cpp b/src/rt/rust_log.cpp
index 01e92e1f23d..a2ab77b1b55 100644
--- a/src/rt/rust_log.cpp
+++ b/src/rt/rust_log.cpp
@@ -23,9 +23,9 @@ static const char * _foreground_colors[] = { "[37m",
 static lock_and_signal _log_lock;
 static uint32_t _last_thread_id;
 
-rust_log::rust_log(rust_srv *srv, rust_dom *dom) :
+rust_log::rust_log(rust_srv *srv, rust_scheduler *sched) :
     _srv(srv),
-    _dom(dom),
+    _sched(sched),
     _use_colors(getenv("RUST_COLOR_LOG")) {
 }
 
@@ -104,12 +104,12 @@ rust_log::trace_ln(rust_task *task, uint32_t level, char *message) {
     uint32_t thread_id = hash((uint32_t) pthread_self());
 #endif
     char prefix[BUF_BYTES] = "";
-    if (_dom && _dom->name) {
+    if (_sched && _sched->name) {
         append_string(prefix, "%04" PRIxPTR ":%.10s:",
-                      thread_id, _dom->name);
+                      thread_id, _sched->name);
     } else {
         append_string(prefix, "%04" PRIxPTR ":0x%08" PRIxPTR ":",
-                      thread_id, (uintptr_t) _dom);
+                      thread_id, (uintptr_t) _sched);
     }
     if (task) {
         if (task->name) {
diff --git a/src/rt/rust_log.h b/src/rt/rust_log.h
index 334b4d94775..ce0d8f593ef 100644
--- a/src/rt/rust_log.h
+++ b/src/rt/rust_log.h
@@ -1,3 +1,4 @@
+// -*- c++ -*-
 #ifndef RUST_LOG_H
 #define RUST_LOG_H
 
@@ -5,30 +6,30 @@ const uint32_t log_err = 0;
 const uint32_t log_note = 1;
 
 #define LOG(task, field, ...)                                   \
-    DLOG_LVL(log_note, task, task->dom, field, __VA_ARGS__)
+    DLOG_LVL(log_note, task, task->sched, field, __VA_ARGS__)
 #define LOG_ERR(task, field, ...)                               \
-    DLOG_LVL(log_err, task, task->dom, field, __VA_ARGS__)
-#define DLOG(dom, field, ...)                                   \
-    DLOG_LVL(log_note, NULL, dom, field, __VA_ARGS__)
-#define DLOG_ERR(dom, field, ...)                               \
-    DLOG_LVL(log_err, NULL, dom, field, __VA_ARGS__)
-#define LOGPTR(dom, msg, ptrval)                                \
-    DLOG_LVL(log_note, NULL, dom, mem, "%s 0x%" PRIxPTR, msg, ptrval)
-#define DLOG_LVL(lvl, task, dom, field, ...)                    \
+    DLOG_LVL(log_err, task, task->sched, field, __VA_ARGS__)
+#define DLOG(sched, field, ...)                                   \
+    DLOG_LVL(log_note, NULL, sched, field, __VA_ARGS__)
+#define DLOG_ERR(sched, field, ...)                               \
+    DLOG_LVL(log_err, NULL, sched, field, __VA_ARGS__)
+#define LOGPTR(sched, msg, ptrval)                                \
+    DLOG_LVL(log_note, NULL, sched, mem, "%s 0x%" PRIxPTR, msg, ptrval)
+#define DLOG_LVL(lvl, task, sched, field, ...)                    \
     do {                                                        \
-        rust_dom* _d_ = dom;                                    \
+        rust_scheduler* _d_ = sched;                            \
         if (log_rt_##field >= lvl && _d_->log_lvl >= lvl) {     \
             _d_->log(task, lvl, __VA_ARGS__);                   \
         }                                                       \
     } while (0)
 
-struct rust_dom;
+struct rust_scheduler;
 struct rust_task;
 
 class rust_log {
 
 public:
-    rust_log(rust_srv *srv, rust_dom *dom);
+    rust_log(rust_srv *srv, rust_scheduler *sched);
     virtual ~rust_log();
 
     enum ansi_color {
@@ -53,7 +54,7 @@ public:
 
 private:
     rust_srv *_srv;
-    rust_dom *_dom;
+    rust_scheduler *_sched;
     bool _use_labels;
     bool _use_colors;
     void trace_ln(rust_task *task, char *message);
diff --git a/src/rt/rust_message.cpp b/src/rt/rust_message.cpp
index 6d1b7c528d2..716299e64fe 100644
--- a/src/rt/rust_message.cpp
+++ b/src/rt/rust_message.cpp
@@ -112,7 +112,7 @@ void data_message::kernel_process() {
 rust_message_queue::rust_message_queue(rust_srv *srv, rust_kernel *kernel) 
     : region(srv, true),
       kernel(kernel),
-      dom_handle(NULL) {
+      sched_handle(NULL) {
     // Nop.
 }
 
diff --git a/src/rt/rust_message.h b/src/rt/rust_message.h
index e9ce94bfa9e..6b95c9ffec7 100644
--- a/src/rt/rust_message.h
+++ b/src/rt/rust_message.h
@@ -93,26 +93,26 @@ class rust_message_queue : public lock_free_queue<rust_message*>,
 public:
     memory_region region;
     rust_kernel *kernel;
-    rust_handle<rust_dom> *dom_handle;
+    rust_handle<rust_scheduler> *sched_handle;
     int32_t list_index;
     rust_message_queue(rust_srv *srv, rust_kernel *kernel);
 
-    void associate(rust_handle<rust_dom> *dom_handle) {
-        this->dom_handle = dom_handle;
+    void associate(rust_handle<rust_scheduler> *sched_handle) {
+        this->sched_handle = sched_handle;
     }
 
     /**
      * The Rust domain relinquishes control to the Rust kernel.
      */
     void disassociate() {
-        this->dom_handle = NULL;
+        this->sched_handle = NULL;
     }
 
     /**
      * Checks if a Rust domain is responsible for draining the message queue.
      */
     bool is_associated() {
-        return this->dom_handle != NULL;
+        return this->sched_handle != NULL;
     }
 
     void enqueue(rust_message* message) {
diff --git a/src/rt/rust_dom.cpp b/src/rt/rust_scheduler.cpp
similarity index 92%
rename from src/rt/rust_dom.cpp
rename to src/rt/rust_scheduler.cpp
index ac3c3a82a40..4ada1ae5697 100644
--- a/src/rt/rust_dom.cpp
+++ b/src/rt/rust_scheduler.cpp
@@ -3,7 +3,7 @@
 #include "rust_internal.h"
 #include "globals.h"
 
-rust_dom::rust_dom(rust_kernel *kernel,
+rust_scheduler::rust_scheduler(rust_kernel *kernel,
     rust_message_queue *message_queue, rust_srv *srv,
     const char *name) :
     interrupt_flag(0),
@@ -32,8 +32,8 @@ rust_dom::rust_dom(rust_kernel *kernel,
     root_task = create_task(NULL, name);
 }
 
-rust_dom::~rust_dom() {
-    DLOG(this, dom, "~rust_dom %s @0x%" PRIxPTR, name, (uintptr_t)this);
+rust_scheduler::~rust_scheduler() {
+    DLOG(this, dom, "~rust_scheduler %s @0x%" PRIxPTR, name, (uintptr_t)this);
 
     newborn_tasks.delete_all();
     running_tasks.delete_all();
@@ -45,7 +45,7 @@ rust_dom::~rust_dom() {
 }
 
 void
-rust_dom::activate(rust_task *task) {
+rust_scheduler::activate(rust_task *task) {
     context ctx;
 
     task->ctx.next = &ctx;
@@ -57,7 +57,7 @@ rust_dom::activate(rust_task *task) {
 }
 
 void
-rust_dom::log(rust_task* task, uint32_t level, char const *fmt, ...) {
+rust_scheduler::log(rust_task* task, uint32_t level, char const *fmt, ...) {
     char buf[BUF_BYTES];
     va_list args;
     va_start(args, fmt);
@@ -67,7 +67,7 @@ rust_dom::log(rust_task* task, uint32_t level, char const *fmt, ...) {
 }
 
 void
-rust_dom::fail() {
+rust_scheduler::fail() {
     log(NULL, log_err, "domain %s @0x%" PRIxPTR " root task failed",
         name, this);
     I(this, rval == 0);
@@ -75,7 +75,7 @@ rust_dom::fail() {
 }
 
 size_t
-rust_dom::number_of_live_tasks() {
+rust_scheduler::number_of_live_tasks() {
     return running_tasks.length() + blocked_tasks.length();
 }
 
@@ -83,7 +83,7 @@ rust_dom::number_of_live_tasks() {
  * Delete any dead tasks.
  */
 void
-rust_dom::reap_dead_tasks() {
+rust_scheduler::reap_dead_tasks() {
     I(this, kernel->scheduler_lock.lock_held_by_current_thread());
     for (size_t i = 0; i < dead_tasks.length(); ) {
         rust_task *task = dead_tasks[i];
@@ -104,7 +104,7 @@ rust_dom::reap_dead_tasks() {
 /**
  * Drains and processes incoming pending messages.
  */
-void rust_dom::drain_incoming_message_queue(bool process) {
+void rust_scheduler::drain_incoming_message_queue(bool process) {
     rust_message *message;
     while (message_queue->dequeue(&message)) {
         DLOG(this, comm, "<== receiving \"%s\" " PTR,
@@ -124,7 +124,7 @@ void rust_dom::drain_incoming_message_queue(bool process) {
  * Returns NULL if no tasks can be scheduled.
  */
 rust_task *
-rust_dom::schedule_task() {
+rust_scheduler::schedule_task() {
     I(this, this);
     // FIXME: in the face of failing tasks, this is not always right.
     // I(this, n_live_tasks() > 0);
@@ -142,7 +142,7 @@ rust_dom::schedule_task() {
 }
 
 void
-rust_dom::log_state() {
+rust_scheduler::log_state() {
     if (log_rt_task < log_note) return;
 
     if (!running_tasks.is_empty()) {
@@ -182,7 +182,7 @@ rust_dom::log_state() {
  * drop to zero.
  */
 int
-rust_dom::start_main_loop(int id) {
+rust_scheduler::start_main_loop(int id) {
     kernel->scheduler_lock.lock();
 
     // Make sure someone is watching, to pull us out of infinite loops.
@@ -282,12 +282,12 @@ rust_dom::start_main_loop(int id) {
 }
 
 rust_crate_cache *
-rust_dom::get_cache() {
+rust_scheduler::get_cache() {
     return &cache;
 }
 
 rust_task *
-rust_dom::create_task(rust_task *spawner, const char *name) {
+rust_scheduler::create_task(rust_task *spawner, const char *name) {
     rust_task *task =
         new (this->kernel) rust_task (this, &newborn_tasks, spawner, name);
     DLOG(this, task, "created task: " PTR ", spawner: %s, name: %s",
diff --git a/src/rt/rust_dom.h b/src/rt/rust_scheduler.h
similarity index 85%
rename from src/rt/rust_dom.h
rename to src/rt/rust_scheduler.h
index 04a42b5fb01..d3e2df224c7 100644
--- a/src/rt/rust_dom.h
+++ b/src/rt/rust_scheduler.h
@@ -1,7 +1,7 @@
-#ifndef RUST_DOM_H
-#define RUST_DOM_H
+#ifndef RUST_SCHEDULER_H
+#define RUST_SCHEDULER_H
 
-struct rust_dom;
+struct rust_scheduler;
 
 class
 rust_crate_cache
@@ -18,15 +18,15 @@ private:
 
 public:
 
-    rust_dom *dom;
+    rust_scheduler *sched;
     size_t idx;
 
-    rust_crate_cache(rust_dom *dom);
+    rust_crate_cache(rust_scheduler *sched);
     ~rust_crate_cache();
     void flush();
 };
 
-struct rust_dom : public kernel_owned<rust_dom>, rc_base<rust_dom>
+struct rust_scheduler : public kernel_owned<rust_scheduler>, rc_base<rust_scheduler>
 {
     // Fields known to the compiler:
     uintptr_t interrupt_flag;
@@ -64,10 +64,10 @@ struct rust_dom : public kernel_owned<rust_dom>, rc_base<rust_dom>
 
     // Only a pointer to 'name' is kept, so it must live as long as this
     // domain.
-    rust_dom(rust_kernel *kernel,
+    rust_scheduler(rust_kernel *kernel,
              rust_message_queue *message_queue, rust_srv *srv,
              const char *name);
-    ~rust_dom();
+    ~rust_scheduler();
     void activate(rust_task *task);
     void log(rust_task *task, uint32_t level, char const *fmt, ...);
     rust_log & get_log();
@@ -89,7 +89,7 @@ struct rust_dom : public kernel_owned<rust_dom>, rc_base<rust_dom>
 };
 
 inline rust_log &
-rust_dom::get_log() {
+rust_scheduler::get_log() {
     return _log;
 }
 
@@ -104,4 +104,4 @@ rust_dom::get_log() {
 // End:
 //
 
-#endif /* RUST_DOM_H */
+#endif /* RUST_SCHEDULER_H */
diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp
index 385e084cd6c..2a3342c683d 100644
--- a/src/rt/rust_task.cpp
+++ b/src/rt/rust_task.cpp
@@ -26,10 +26,10 @@ new_stk(rust_task *task, size_t minsz)
         minsz = min_stk_bytes;
     size_t sz = sizeof(stk_seg) + minsz;
     stk_seg *stk = (stk_seg *)task->malloc(sz);
-    LOGPTR(task->dom, "new stk", (uintptr_t)stk);
+    LOGPTR(task->sched, "new stk", (uintptr_t)stk);
     memset(stk, 0, sizeof(stk_seg));
     stk->limit = (uintptr_t) &stk->data[minsz];
-    LOGPTR(task->dom, "stk limit", stk->limit);
+    LOGPTR(task->sched, "stk limit", stk->limit);
     stk->valgrind_id =
         VALGRIND_STACK_REGISTER(&stk->data[0],
                                 &stk->data[minsz]);
@@ -40,7 +40,7 @@ static void
 del_stk(rust_task *task, stk_seg *stk)
 {
     VALGRIND_STACK_DEREGISTER(stk->valgrind_id);
-    LOGPTR(task->dom, "freeing stk segment", (uintptr_t)stk);
+    LOGPTR(task->sched, "freeing stk segment", (uintptr_t)stk);
     task->free(stk);
 }
 
@@ -52,16 +52,16 @@ del_stk(rust_task *task, stk_seg *stk)
 size_t const n_callee_saves = 4;
 size_t const callee_save_fp = 0;
 
-rust_task::rust_task(rust_dom *dom, rust_task_list *state,
+rust_task::rust_task(rust_scheduler *sched, rust_task_list *state,
                      rust_task *spawner, const char *name) :
     maybe_proxy<rust_task>(this),
     stk(NULL),
     runtime_sp(0),
     rust_sp(0),
     gc_alloc_chain(0),
-    dom(dom),
+    sched(sched),
     cache(NULL),
-    kernel(dom->kernel),
+    kernel(sched->kernel),
     name(name),
     state(state),
     cond(NULL),
@@ -71,11 +71,11 @@ rust_task::rust_task(rust_dom *dom, rust_task_list *state,
     rendezvous_ptr(0),
     handle(NULL),
     active(false),
-    local_region(&dom->srv->local_region),
-    synchronized_region(&dom->srv->synchronized_region)
+    local_region(&sched->srv->local_region),
+    synchronized_region(&sched->srv->synchronized_region)
 {
-    LOGPTR(dom, "new task", (uintptr_t)this);
-    DLOG(dom, task, "sizeof(task) = %d (0x%x)", sizeof *this, sizeof *this);
+    LOGPTR(sched, "new task", (uintptr_t)this);
+    DLOG(sched, task, "sizeof(task) = %d (0x%x)", sizeof *this, sizeof *this);
 
     stk = new_stk(this, 0);
     rust_sp = stk->limit;
@@ -87,33 +87,13 @@ rust_task::rust_task(rust_dom *dom, rust_task_list *state,
 
 rust_task::~rust_task()
 {
-    DLOG(dom, task, "~rust_task %s @0x%" PRIxPTR ", refcnt=%d",
+    DLOG(sched, task, "~rust_task %s @0x%" PRIxPTR ", refcnt=%d",
          name, (uintptr_t)this, ref_count);
 
-    /*
-      for (uintptr_t fp = get_fp(); fp; fp = get_previous_fp(fp)) {
-      frame_glue_fns *glue_fns = get_frame_glue_fns(fp);
-      DLOG(dom, task,
-      "~rust_task, frame fp=0x%" PRIxPTR ", glue_fns=0x%" PRIxPTR,
-      fp, glue_fns);
-      if (glue_fns) {
-      DLOG(dom, task,
-               "~rust_task, mark_glue=0x%" PRIxPTR,
-               glue_fns->mark_glue);
-      DLOG(dom, task,
-               "~rust_task, drop_glue=0x%" PRIxPTR,
-               glue_fns->drop_glue);
-      DLOG(dom, task,
-               "~rust_task, reloc_glue=0x%" PRIxPTR,
-               glue_fns->reloc_glue);
-      }
-      }
-    */
-
     /* FIXME: tighten this up, there are some more
        assertions that hold at task-lifecycle events. */
-    I(dom, ref_count == 0 ||
-      (ref_count == 1 && this == dom->root_task));
+    I(sched, ref_count == 0 ||
+      (ref_count == 1 && this == sched->root_task));
 
     del_stk(this, stk);
 }
@@ -147,7 +127,7 @@ void task_start_wrapper(spawn_args *a)
         // This is duplicated from upcall_exit, which is probably dead code by
         // now.
         LOG(task, task, "task ref_count: %d", task->ref_count);
-        A(task->dom, task->ref_count >= 0,
+        A(task->sched, task->ref_count >= 0,
           "Task ref_count should not be negative on exit!");
         task->die();
         task->notify_tasks_waiting_to_join();
@@ -160,10 +140,10 @@ void
 rust_task::start(uintptr_t spawnee_fn,
                  uintptr_t args)
 {
-    LOGPTR(dom, "from spawnee", spawnee_fn);
+    LOGPTR(sched, "from spawnee", spawnee_fn);
 
-    I(dom, stk->data != NULL);
-    I(dom, !kernel->scheduler_lock.lock_held_by_current_thread());
+    I(sched, stk->data != NULL);
+    I(sched, !kernel->scheduler_lock.lock_held_by_current_thread());
     
     scoped_lock with(kernel->scheduler_lock);
 
@@ -182,7 +162,7 @@ rust_task::start(uintptr_t spawnee_fn,
     ctx.call((void *)task_start_wrapper, a, sp);
 
     yield_timer.reset(0);
-    transition(&dom->newborn_tasks, &dom->running_tasks);
+    transition(&sched->newborn_tasks, &sched->running_tasks);
 }
 
 void
@@ -227,8 +207,8 @@ rust_task::kill() {
     // Unblock the task so it can unwind.
     unblock();
 
-    if (this == dom->root_task)
-        dom->fail();
+    if (this == sched->root_task)
+        sched->fail();
 
     LOG(this, task, "preparing to unwind task: 0x%" PRIxPTR, this);
     // run_on_resume(rust_unwind_glue);
@@ -237,15 +217,15 @@ rust_task::kill() {
 void
 rust_task::fail(size_t nargs) {
     // See note in ::kill() regarding who should call this.
-    DLOG(dom, task, "task %s @0x%" PRIxPTR " failing", name, this);
+    DLOG(sched, task, "task %s @0x%" PRIxPTR " failing", name, this);
     backtrace();
     // Unblock the task so it can unwind.
     unblock();
-    if (this == dom->root_task)
-        dom->fail();
+    if (this == sched->root_task)
+        sched->fail();
     // run_after_return(nargs, rust_unwind_glue);
     if (supervisor) {
-        DLOG(dom, task,
+        DLOG(sched, task,
              "task %s @0x%" PRIxPTR
              " propagating failure to supervisor %s @0x%" PRIxPTR,
              name, this, supervisor->name, supervisor);
@@ -259,14 +239,14 @@ void
 rust_task::gc(size_t nargs)
 {
     // FIXME: not presently implemented; was broken by rustc.
-    DLOG(dom, task,
+    DLOG(sched, task,
              "task %s @0x%" PRIxPTR " garbage collecting", name, this);
 }
 
 void
 rust_task::unsupervise()
 {
-    DLOG(dom, task,
+    DLOG(sched, task,
              "task %s @0x%" PRIxPTR
              " disconnecting from supervisor %s @0x%" PRIxPTR,
              name, this, supervisor->name, supervisor);
@@ -302,13 +282,13 @@ rust_task::get_frame_glue_fns(uintptr_t fp) {
 bool
 rust_task::running()
 {
-    return state == &dom->running_tasks;
+    return state == &sched->running_tasks;
 }
 
 bool
 rust_task::blocked()
 {
-    return state == &dom->blocked_tasks;
+    return state == &sched->blocked_tasks;
 }
 
 bool
@@ -320,13 +300,13 @@ rust_task::blocked_on(rust_cond *on)
 bool
 rust_task::dead()
 {
-    return state == &dom->dead_tasks;
+    return state == &sched->dead_tasks;
 }
 
 void
 rust_task::link_gc(gc_alloc *gcm) {
-    I(dom, gcm->prev == NULL);
-    I(dom, gcm->next == NULL);
+    I(sched, gcm->prev == NULL);
+    I(sched, gcm->next == NULL);
     gcm->prev = NULL;
     gcm->next = gc_alloc_chain;
     gc_alloc_chain = gcm;
@@ -361,7 +341,7 @@ rust_task::malloc(size_t sz, type_desc *td)
         return mem;
     if (td) {
         gc_alloc *gcm = (gc_alloc*) mem;
-        DLOG(dom, task, "task %s @0x%" PRIxPTR
+        DLOG(sched, task, "task %s @0x%" PRIxPTR
              " allocated %d GC bytes = 0x%" PRIxPTR,
              name, (uintptr_t)this, sz, gcm);
         memset((void*) gcm, 0, sizeof(gc_alloc));
@@ -384,7 +364,7 @@ rust_task::realloc(void *data, size_t sz, bool is_gc)
         unlink_gc(gcm);
         sz += sizeof(gc_alloc);
         gcm = (gc_alloc*) realloc((void*)gcm, sz, memory_region::LOCAL);
-        DLOG(dom, task, "task %s @0x%" PRIxPTR
+        DLOG(sched, task, "task %s @0x%" PRIxPTR
              " reallocated %d GC bytes = 0x%" PRIxPTR,
              name, (uintptr_t)this, sz, gcm);
         if (!gcm)
@@ -406,7 +386,7 @@ rust_task::free(void *p, bool is_gc)
     if (is_gc) {
         gc_alloc *gcm = (gc_alloc*)(((char *)p) - sizeof(gc_alloc));
         unlink_gc(gcm);
-        DLOG(dom, mem,
+        DLOG(sched, mem,
              "task %s @0x%" PRIxPTR " freeing GC memory = 0x%" PRIxPTR,
              name, (uintptr_t)this, gcm);
         free(gcm, memory_region::LOCAL);
@@ -417,11 +397,11 @@ rust_task::free(void *p, bool is_gc)
 
 void
 rust_task::transition(rust_task_list *src, rust_task_list *dst) {
-    I(dom, kernel->scheduler_lock.lock_held_by_current_thread());
-    DLOG(dom, task,
+    I(sched, kernel->scheduler_lock.lock_held_by_current_thread());
+    DLOG(sched, task,
          "task %s " PTR " state change '%s' -> '%s' while in '%s'",
          name, (uintptr_t)this, src->name, dst->name, state->name);
-    I(dom, state == src);
+    I(sched, state == src);
     src->remove(this);
     dst->append(this);
     state = dst;
@@ -431,30 +411,30 @@ void
 rust_task::block(rust_cond *on, const char* name) {
     LOG(this, task, "Blocking on 0x%" PRIxPTR ", cond: 0x%" PRIxPTR,
                          (uintptr_t) on, (uintptr_t) cond);
-    A(dom, cond == NULL, "Cannot block an already blocked task.");
-    A(dom, on != NULL, "Cannot block on a NULL object.");
+    A(sched, cond == NULL, "Cannot block an already blocked task.");
+    A(sched, on != NULL, "Cannot block on a NULL object.");
 
-    transition(&dom->running_tasks, &dom->blocked_tasks);
+    transition(&sched->running_tasks, &sched->blocked_tasks);
     cond = on;
     cond_name = name;
 }
 
 void
 rust_task::wakeup(rust_cond *from) {
-    A(dom, cond != NULL, "Cannot wake up unblocked task.");
+    A(sched, cond != NULL, "Cannot wake up unblocked task.");
     LOG(this, task, "Blocked on 0x%" PRIxPTR " woken up on 0x%" PRIxPTR,
                         (uintptr_t) cond, (uintptr_t) from);
-    A(dom, cond == from, "Cannot wake up blocked task on wrong condition.");
+    A(sched, cond == from, "Cannot wake up blocked task on wrong condition.");
 
-    transition(&dom->blocked_tasks, &dom->running_tasks);
-    I(dom, cond == from);
+    transition(&sched->blocked_tasks, &sched->running_tasks);
+    I(sched, cond == from);
     cond = NULL;
     cond_name = "none";
 }
 
 void
 rust_task::die() {
-    transition(&dom->running_tasks, &dom->dead_tasks);
+    transition(&sched->running_tasks, &sched->dead_tasks);
 }
 
 void
@@ -467,8 +447,8 @@ rust_crate_cache *
 rust_task::get_crate_cache()
 {
     if (!cache) {
-        DLOG(dom, task, "fetching cache for current crate");
-        cache = dom->get_cache();
+        DLOG(sched, task, "fetching cache for current crate");
+        cache = sched->get_cache();
     }
     return cache;
 }
@@ -486,7 +466,7 @@ rust_task::backtrace() {
 rust_handle<rust_task> *
 rust_task::get_handle() {
     if (handle == NULL) {
-        handle = dom->kernel->get_task_handle(this);
+        handle = sched->kernel->get_task_handle(this);
     }
     return handle;
 }
@@ -503,7 +483,7 @@ rust_task::malloc(size_t size, memory_region::memory_region_type type) {
     } else if (type == memory_region::SYNCHRONIZED) {
         return synchronized_region.malloc(size);
     }
-    I(dom, false);
+    I(sched, false);
     return NULL;
 }
 
@@ -535,7 +515,7 @@ rust_task::realloc(void *mem, size_t size,
 
 void
 rust_task::free(void *mem, memory_region::memory_region_type type) {
-    DLOG(dom, mem, "rust_task::free(0x%" PRIxPTR ")", mem);
+    DLOG(sched, mem, "rust_task::free(0x%" PRIxPTR ")", mem);
     if (type == memory_region::LOCAL) {
         local_region.free(mem);
     } else if (type == memory_region::SYNCHRONIZED) {
diff --git a/src/rt/rust_task.h b/src/rt/rust_task.h
index 5e61306af2e..54287df4414 100644
--- a/src/rt/rust_task.h
+++ b/src/rt/rust_task.h
@@ -43,7 +43,7 @@ rust_task : public maybe_proxy<rust_task>,
     uintptr_t runtime_sp;      // Runtime sp while task running.
     uintptr_t rust_sp;         // Saved sp when not running.
     gc_alloc *gc_alloc_chain;  // Linked list of GC allocations.
-    rust_dom *dom;
+    rust_scheduler *sched;
     rust_crate_cache *cache;
 
     // Fields known only to the runtime.
@@ -83,7 +83,7 @@ rust_task : public maybe_proxy<rust_task>,
     memory_region synchronized_region;
 
     // Only a pointer to 'name' is kept, so it must live as long as this task.
-    rust_task(rust_dom *dom,
+    rust_task(rust_scheduler *sched,
               rust_task_list *state,
               rust_task *spawner,
               const char *name);
@@ -111,8 +111,8 @@ rust_task : public maybe_proxy<rust_task>,
     void die();
     void unblock();
 
-    void check_active() { I(dom, dom->curr_task == this); }
-    void check_suspended() { I(dom, dom->curr_task != this); }
+    void check_active() { I(sched, sched->curr_task == this); }
+    void check_suspended() { I(sched, sched->curr_task != this); }
 
     // Print a backtrace, if the "bt" logging option is on.
     void backtrace();
diff --git a/src/rt/rust_task_list.cpp b/src/rt/rust_task_list.cpp
index bb1224afa20..81441de35f5 100644
--- a/src/rt/rust_task_list.cpp
+++ b/src/rt/rust_task_list.cpp
@@ -1,16 +1,16 @@
 #include "rust_internal.h"
 
-rust_task_list::rust_task_list (rust_dom *dom, const char* name) :
-    dom(dom), name(name) {
+rust_task_list::rust_task_list (rust_scheduler *sched, const char* name) :
+    sched(sched), name(name) {
     // Nop;
 }
 
 void
 rust_task_list::delete_all() {
-    DLOG(dom, task, "deleting all %s tasks", name);
+    DLOG(sched, task, "deleting all %s tasks", name);
     while (is_empty() == false) {
         rust_task *task = pop_value();
-        DLOG(dom, task, "deleting task " PTR, task);
+        DLOG(sched, task, "deleting task " PTR, task);
         delete task;
     }
 }
diff --git a/src/rt/rust_task_list.h b/src/rt/rust_task_list.h
index 479f9e936fb..0991b32eed8 100644
--- a/src/rt/rust_task_list.h
+++ b/src/rt/rust_task_list.h
@@ -1,4 +1,4 @@
-// -*- c++-mode -*-
+// -*- c++ -*-
 #ifndef RUST_TASK_LIST_H
 #define RUST_TASK_LIST_H
 
@@ -8,9 +8,9 @@
 class rust_task_list : public indexed_list<rust_task>,
                        public kernel_owned<rust_task_list> {
 public:
-    rust_dom *dom;
+    rust_scheduler *sched;
     const char* name;
-    rust_task_list (rust_dom *dom, const char* name);
+    rust_task_list (rust_scheduler *sched, const char* name);
     void delete_all();
 };
 
diff --git a/src/rt/rust_timer.cpp b/src/rt/rust_timer.cpp
index 2d732a23591..2b1c33aa6b9 100644
--- a/src/rt/rust_timer.cpp
+++ b/src/rt/rust_timer.cpp
@@ -29,8 +29,8 @@ static void *
 timer_loop(void *ptr) {
     // We were handed the rust_timer that owns us.
     rust_timer *timer = (rust_timer *)ptr;
-    rust_dom *dom = timer->dom;
-    DLOG(dom, timer, "in timer 0x%" PRIxPTR, (uintptr_t)timer);
+    rust_scheduler *sched = timer->sched;
+    DLOG(sched, timer, "in timer 0x%" PRIxPTR, (uintptr_t)timer);
     size_t ms = TIME_SLICE_IN_MS;
 
     while (!timer->exit_flag) {
@@ -39,10 +39,10 @@ timer_loop(void *ptr) {
 #else
         usleep(ms * 1000);
 #endif
-        DLOG(dom, timer, "timer 0x%" PRIxPTR
-        " interrupting domain 0x%" PRIxPTR, (uintptr_t) timer,
-                 (uintptr_t) dom);
-        dom->interrupt_flag = 1;
+        DLOG(sched, timer, "timer 0x%" PRIxPTR
+        " interrupting schedain 0x%" PRIxPTR, (uintptr_t) timer,
+                 (uintptr_t) sched);
+        sched->interrupt_flag = 1;
     }
 #if defined(__WIN32__)
     ExitThread(0);
@@ -52,12 +52,12 @@ timer_loop(void *ptr) {
     return 0;
 }
 
-rust_timer::rust_timer(rust_dom *dom) :
-    dom(dom), exit_flag(0) {
-    DLOG(dom, timer, "creating timer for domain 0x%" PRIxPTR, dom);
+rust_timer::rust_timer(rust_scheduler *sched) :
+    sched(sched), exit_flag(0) {
+    DLOG(sched, timer, "creating timer for domain 0x%" PRIxPTR, sched);
 #if defined(__WIN32__)
     thread = CreateThread(NULL, 0, timer_loop, this, 0, NULL);
-    dom->kernel->win32_require("CreateThread", thread != NULL);
+    sched->kernel->win32_require("CreateThread", thread != NULL);
     if (RUNNING_ON_VALGRIND)
         Sleep(10);
 #else
@@ -70,7 +70,7 @@ rust_timer::rust_timer(rust_dom *dom) :
 rust_timer::~rust_timer() {
     exit_flag = 1;
 #if defined(__WIN32__)
-    dom->kernel->win32_require("WaitForSingleObject",
+    sched->kernel->win32_require("WaitForSingleObject",
                                WaitForSingleObject(thread, INFINITE) == 
                                WAIT_OBJECT_0);
 #else
diff --git a/src/rt/rust_upcall.cpp b/src/rt/rust_upcall.cpp
index ce349b18e9d..18d9f4c1e8c 100644
--- a/src/rt/rust_upcall.cpp
+++ b/src/rt/rust_upcall.cpp
@@ -23,7 +23,7 @@ str_buf(rust_task *task, rust_str *s);
 
 extern "C" void
 upcall_grow_task(rust_task *task, size_t n_frame_bytes) {
-    I(task->dom, false);
+    I(task->sched, false);
     LOG_UPCALL_ENTRY(task);
     task->grow(n_frame_bytes);
 }
@@ -31,44 +31,44 @@ upcall_grow_task(rust_task *task, size_t n_frame_bytes) {
 extern "C" CDECL
 void upcall_log_int(rust_task *task, uint32_t level, int32_t i) {
     LOG_UPCALL_ENTRY(task);
-    if (task->dom->log_lvl >= level)
-        task->dom->log(task, level, "rust: %" PRId32 " (0x%" PRIx32 ")",
+    if (task->sched->log_lvl >= level)
+        task->sched->log(task, level, "rust: %" PRId32 " (0x%" PRIx32 ")",
                        i, i);
 }
 
 extern "C" CDECL
 void upcall_log_float(rust_task *task, uint32_t level, float f) {
     LOG_UPCALL_ENTRY(task);
-    if (task->dom->log_lvl >= level)
-        task->dom->log(task, level, "rust: %12.12f", f);
+    if (task->sched->log_lvl >= level)
+        task->sched->log(task, level, "rust: %12.12f", f);
 }
 
 extern "C" CDECL
 void upcall_log_double(rust_task *task, uint32_t level, double *f) {
     LOG_UPCALL_ENTRY(task);
-    if (task->dom->log_lvl >= level)
-        task->dom->log(task, level, "rust: %12.12f", *f);
+    if (task->sched->log_lvl >= level)
+        task->sched->log(task, level, "rust: %12.12f", *f);
 }
 
 extern "C" CDECL void
 upcall_log_str(rust_task *task, uint32_t level, rust_str *str) {
     LOG_UPCALL_ENTRY(task);
-    if (task->dom->log_lvl >= level) {
+    if (task->sched->log_lvl >= level) {
         const char *c = str_buf(task, str);
-        task->dom->log(task, level, "rust: %s", c);
+        task->sched->log(task, level, "rust: %s", c);
     }
 }
 
 extern "C" CDECL void
 upcall_trace_word(rust_task *task, uintptr_t i) {
     LOG_UPCALL_ENTRY(task);
-    task->dom->log(task, 2, "trace: 0x%" PRIxPTR "", i, i, (char) i);
+    task->sched->log(task, 2, "trace: 0x%" PRIxPTR "", i, i, (char) i);
 }
 
 extern "C" CDECL void
 upcall_trace_str(rust_task *task, char const *c) {
     LOG_UPCALL_ENTRY(task);
-    task->dom->log(task, 2, "trace: %s", c);
+    task->sched->log(task, 2, "trace: %s", c);
 }
 
 extern "C" CDECL rust_port*
@@ -85,7 +85,7 @@ upcall_del_port(rust_task *task, rust_port *port) {
     LOG_UPCALL_ENTRY(task);
     scoped_lock with(task->kernel->scheduler_lock);
     LOG(task, comm, "upcall del_port(0x%" PRIxPTR ")", (uintptr_t) port);
-    I(task->dom, !port->ref_count);
+    I(task->sched, !port->ref_count);
     delete port;
 }
 
@@ -95,11 +95,11 @@ upcall_del_port(rust_task *task, rust_port *port) {
 extern "C" CDECL rust_chan*
 upcall_new_chan(rust_task *task, rust_port *port) {
     LOG_UPCALL_ENTRY(task);
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     LOG(task, comm, "upcall_new_chan("
         "task=0x%" PRIxPTR " (%s), port=0x%" PRIxPTR ")",
         (uintptr_t) task, task->name, port);
-    I(dom, port);
+    I(sched, port);
     return new (task) rust_chan(task, port, port->unit_sz);
 }
 
@@ -127,7 +127,7 @@ void upcall_del_chan(rust_task *task, rust_chan *chan) {
 
     LOG(task, comm, "upcall del_chan(0x%" PRIxPTR ")", (uintptr_t) chan);
 
-    A(task->dom, chan->ref_count == 0,
+    A(task->sched, chan->ref_count == 0,
       "Channel's ref count should be zero.");
 
     if (chan->is_associated()) {
@@ -174,7 +174,7 @@ upcall_clone_chan(rust_task *task, maybe_proxy<rust_task> *target,
         target_task = target->referent();
     } else {
         rust_handle<rust_port> *handle =
-            task->dom->kernel->get_port_handle(port->as_referent());
+            task->sched->kernel->get_port_handle(port->as_referent());
         maybe_proxy<rust_port> *proxy = new rust_proxy<rust_port> (handle);
         LOG(task, mem, "new proxy: " PTR, proxy);
         port = proxy;
@@ -275,7 +275,7 @@ upcall_exit(rust_task *task) {
         LOG_UPCALL_ENTRY(task);
         scoped_lock with(task->kernel->scheduler_lock);
         LOG(task, task, "task ref_count: %d", task->ref_count);
-        A(task->dom, task->ref_count >= 0,
+        A(task->sched, task->ref_count >= 0,
           "Task ref_count should not be negative on exit!");
         task->die();
         task->notify_tasks_waiting_to_join();
@@ -308,8 +308,8 @@ extern "C" CDECL void
 upcall_free(rust_task *task, void* ptr, uintptr_t is_gc) {
     LOG_UPCALL_ENTRY(task);
     scoped_lock with(task->kernel->scheduler_lock);
-    rust_dom *dom = task->dom;
-    DLOG(dom, mem,
+    rust_scheduler *sched = task->sched;
+    DLOG(sched, mem,
              "upcall free(0x%" PRIxPTR ", is_gc=%" PRIdPTR ")",
              (uintptr_t)ptr, is_gc);
     task->free(ptr, (bool) is_gc);
@@ -320,11 +320,11 @@ upcall_mark(rust_task *task, void* ptr) {
     LOG_UPCALL_ENTRY(task);
     scoped_lock with(task->kernel->scheduler_lock);
 
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     if (ptr) {
         gc_alloc *gcm = (gc_alloc*) (((char*)ptr) - sizeof(gc_alloc));
         uintptr_t marked = (uintptr_t) gcm->mark();
-        DLOG(dom, gc, "upcall mark(0x%" PRIxPTR ") = %" PRIdPTR,
+        DLOG(sched, gc, "upcall mark(0x%" PRIxPTR ") = %" PRIdPTR,
                  (uintptr_t)gcm, marked);
         return marked;
     }
@@ -332,14 +332,14 @@ upcall_mark(rust_task *task, void* ptr) {
 }
 
 rust_str *make_str(rust_task *task, char const *s, size_t fill) {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     size_t alloc = next_power_of_two(sizeof(rust_str) + fill);
     void *mem = task->malloc(alloc);
     if (!mem) {
         task->fail(3);
         return NULL;
     }
-    rust_str *st = new (mem) rust_str(dom, alloc, fill, (uint8_t const *) s);
+    rust_str *st = new (mem) rust_str(sched, alloc, fill, (uint8_t const *) s);
     LOG(task, mem,
         "upcall new_str('%s', %" PRIdPTR ") = 0x%" PRIxPTR,
         s, fill, st);
@@ -366,15 +366,15 @@ extern "C" CDECL rust_vec *
 upcall_new_vec(rust_task *task, size_t fill, type_desc *td) {
     LOG_UPCALL_ENTRY(task);
     scoped_lock with(task->kernel->scheduler_lock);
-    rust_dom *dom = task->dom;
-    DLOG(dom, mem, "upcall new_vec(%" PRIdPTR ")", fill);
+    rust_scheduler *sched = task->sched;
+    DLOG(sched, mem, "upcall new_vec(%" PRIdPTR ")", fill);
     size_t alloc = next_power_of_two(sizeof(rust_vec) + fill);
     void *mem = task->malloc(alloc, td);
     if (!mem) {
         task->fail(3);
         return NULL;
     }
-    rust_vec *v = new (mem) rust_vec(dom, alloc, 0, NULL);
+    rust_vec *v = new (mem) rust_vec(sched, alloc, 0, NULL);
     LOG(task, mem,
               "upcall new_vec(%" PRIdPTR ") = 0x%" PRIxPTR, fill, v);
     return v;
@@ -387,7 +387,7 @@ vec_grow(rust_task *task,
          uintptr_t *need_copy,
          type_desc *td)
 {
-    rust_dom *dom = task->dom;
+    rust_scheduler *sched = task->sched;
     LOG(task, mem,
         "vec_grow(0x%" PRIxPTR ", %" PRIdPTR
         "), rc=%" PRIdPTR " alloc=%" PRIdPTR ", fill=%" PRIdPTR
@@ -438,10 +438,10 @@ vec_grow(rust_task *task,
         if (v->ref_count != CONST_REFCOUNT)
             v->deref();
 
-        v = new (mem) rust_vec(dom, alloc, 0, NULL);
+        v = new (mem) rust_vec(sched, alloc, 0, NULL);
         *need_copy = 1;
     }
-    I(dom, sizeof(rust_vec) + v->fill <= v->alloc);
+    I(sched, sizeof(rust_vec) + v->fill <= v->alloc);
     return v;
 }
 
@@ -521,8 +521,8 @@ upcall_new_task(rust_task *spawner, rust_vec *name) {
     // name is a rust string structure.
     LOG_UPCALL_ENTRY(spawner);
     scoped_lock with(spawner->kernel->scheduler_lock);
-    rust_dom *dom = spawner->dom;
-    rust_task *task = dom->create_task(spawner, (const char *)name->data);
+    rust_scheduler *sched = spawner->sched;
+    rust_task *task = sched->create_task(spawner, (const char *)name->data);
     return task;
 }
 
@@ -534,8 +534,8 @@ upcall_start_task(rust_task *spawner,
                   size_t args_sz) {
     LOG_UPCALL_ENTRY(spawner);
 
-    rust_dom *dom = spawner->dom;
-    DLOG(dom, task,
+    rust_scheduler *sched = spawner->sched;
+    DLOG(sched, task,
          "upcall start_task(task %s @0x%" PRIxPTR
          ", spawnee 0x%" PRIxPTR ")", 
          task->name, task,
@@ -563,7 +563,7 @@ upcall_ivec_resize(rust_task *task,
                    rust_ivec *v,
                    size_t newsz) {
     scoped_lock with(task->kernel->scheduler_lock);
-    I(task->dom, !v->fill);
+    I(task->sched, !v->fill);
 
     size_t new_alloc = next_power_of_two(newsz);
     rust_ivec_heap *new_heap_part = (rust_ivec_heap *)
diff --git a/src/rt/rust_util.h b/src/rt/rust_util.h
index bd888c108f1..984cd978ec2 100644
--- a/src/rt/rust_util.h
+++ b/src/rt/rust_util.h
@@ -25,24 +25,24 @@ ptr_vec<T>::ptr_vec(rust_task *task) :
     fill(0),
     data(new (task) T*[alloc])
 {
-    I(task->dom, data);
-    DLOG(task->dom, mem, "new ptr_vec(data=0x%" PRIxPTR ") -> 0x%" PRIxPTR,
+    I(task->sched, data);
+    DLOG(task->sched, mem, "new ptr_vec(data=0x%" PRIxPTR ") -> 0x%" PRIxPTR,
          (uintptr_t)data, (uintptr_t)this);
 }
 
 template <typename T>
 ptr_vec<T>::~ptr_vec()
 {
-    I(task->dom, data);
-    DLOG(task->dom, mem, "~ptr_vec 0x%" PRIxPTR ", data=0x%" PRIxPTR,
+    I(task->sched, data);
+    DLOG(task->sched, mem, "~ptr_vec 0x%" PRIxPTR ", data=0x%" PRIxPTR,
          (uintptr_t)this, (uintptr_t)data);
-    I(task->dom, fill == 0);
+    I(task->sched, fill == 0);
     task->free(data);
 }
 
 template <typename T> T *&
 ptr_vec<T>::operator[](size_t offset) {
-    I(task->dom, data[offset]->idx == offset);
+    I(task->sched, data[offset]->idx == offset);
     return data[offset];
 }
 
@@ -50,14 +50,14 @@ template <typename T>
 void
 ptr_vec<T>::push(T *p)
 {
-    I(task->dom, data);
-    I(task->dom, fill <= alloc);
+    I(task->sched, data);
+    I(task->sched, fill <= alloc);
     if (fill == alloc) {
         alloc *= 2;
         data = (T **)task->realloc(data, alloc * sizeof(T*));
-        I(task->dom, data);
+        I(task->sched, data);
     }
-    I(task->dom, fill < alloc);
+    I(task->sched, fill < alloc);
     p->idx = fill;
     data[fill++] = p;
 }
@@ -80,13 +80,13 @@ template <typename T>
 void
 ptr_vec<T>::trim(size_t sz)
 {
-    I(task->dom, data);
+    I(task->sched, data);
     if (sz <= (alloc / 4) &&
         (alloc / 2) >= INIT_SIZE) {
         alloc /= 2;
-        I(task->dom, alloc >= fill);
+        I(task->sched, alloc >= fill);
         data = (T **)task->realloc(data, alloc * sizeof(T*));
-        I(task->dom, data);
+        I(task->sched, data);
     }
 }
 
@@ -95,9 +95,9 @@ void
 ptr_vec<T>::swap_delete(T *item)
 {
     /* Swap the endpoint into i and decr fill. */
-    I(task->dom, data);
-    I(task->dom, fill > 0);
-    I(task->dom, item->idx < fill);
+    I(task->sched, data);
+    I(task->sched, fill > 0);
+    I(task->sched, item->idx < fill);
     fill--;
     if (fill > 0) {
         T *subst = data[fill];
@@ -127,22 +127,22 @@ next_power_of_two(size_t s)
 // Initialization helper for ISAAC RNG
 
 static inline void
-isaac_init(rust_dom *dom, randctx *rctx)
+isaac_init(rust_scheduler *sched, randctx *rctx)
 {
         memset(rctx, 0, sizeof(randctx));
 
 #ifdef __WIN32__
         {
             HCRYPTPROV hProv;
-            dom->kernel->win32_require
+            sched->kernel->win32_require
                 (_T("CryptAcquireContext"),
                  CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL,
                                      CRYPT_VERIFYCONTEXT|CRYPT_SILENT));
-            dom->kernel->win32_require
+            sched->kernel->win32_require
                 (_T("CryptGenRandom"),
                  CryptGenRandom(hProv, sizeof(rctx->randrsl),
                                 (BYTE*)(&rctx->randrsl)));
-            dom->kernel->win32_require
+            sched->kernel->win32_require
                 (_T("CryptReleaseContext"),
                  CryptReleaseContext(hProv, 0));
         }
@@ -156,11 +156,11 @@ isaac_init(rust_dom *dom, randctx *rctx)
             }
         } else {
             int fd = open("/dev/urandom", O_RDONLY);
-            I(dom, fd > 0);
-            I(dom, 
+            I(sched, fd > 0);
+            I(sched, 
               read(fd, (void*) &rctx->randrsl, sizeof(rctx->randrsl))
               == sizeof(rctx->randrsl));
-            I(dom, close(fd) == 0);
+            I(sched, close(fd) == 0);
         }
 #endif
         randinit(rctx, 1);
@@ -175,9 +175,10 @@ rust_vec : public rc_base<rust_vec>
     size_t fill;
     size_t pad; // Pad to align data[0] to 16 bytes.
     uint8_t data[];
-    rust_vec(rust_dom *dom, size_t alloc, size_t fill, uint8_t const *d) :
-        alloc(alloc),
-        fill(fill)
+    rust_vec(rust_scheduler *sched, size_t alloc, size_t fill, 
+             uint8_t const *d) 
+        : alloc(alloc),
+          fill(fill)
     {
         if (d)
             memcpy(&data[0], d, fill);