rt: Do all task creation through a scheduler

Author: brson

src/rt/rust.cpp

@@ -1,5 +1,6 @@
 #include "rust_internal.h"
 #include "rust_util.h"
+#include "rust_scheduler.h"
 #include <cstdio>
 
 struct
@@ -87,7 +88,8 @@ rust_start(uintptr_t main_fn, int argc, char **argv, void* crate_map) {
 
     rust_srv *srv = new rust_srv(env);
     rust_kernel *kernel = new rust_kernel(srv, env->num_sched_threads);
-    rust_task_id root_id = kernel->create_task(NULL, "main", MAIN_STACK_SIZE);
+    rust_scheduler *sched = kernel->get_default_scheduler();
+    rust_task_id root_id = sched->create_task(NULL, "main", MAIN_STACK_SIZE);
     rust_task *root_task = kernel->get_task_by_id(root_id);
     I(kernel, root_task != NULL);
     rust_task_thread *thread = root_task->thread;

src/rt/rust_kernel.cpp

@@ -65,6 +65,11 @@ int rust_kernel::start_schedulers()
     return rval;
 }
 
+rust_scheduler *
+rust_kernel::get_default_scheduler() {
+    return sched;
+}
+
 void
 rust_kernel::fail() {
     // FIXME: On windows we're getting "Application has requested the
@@ -77,17 +82,6 @@ rust_kernel::fail() {
     sched->kill_all_tasks();
 }
 
-rust_task_id
-rust_kernel::create_task(rust_task *spawner, const char *name,
-                         size_t init_stack_sz) {
-    return sched->create_task(spawner, name, init_stack_sz);
-}
-
-rust_task_id
-rust_kernel::create_task(rust_task *spawner, const char *name) {
-    return create_task(spawner, name, env->min_stack_size);
-}
-
 void
 rust_kernel::register_task(rust_task *task) {
     scoped_lock with(_kernel_lock);

src/rt/rust_kernel.h

@@ -47,17 +47,16 @@ class rust_kernel {
     void fail();
 
     int start_schedulers();
+    rust_scheduler* get_default_scheduler();
 
 #ifdef __WIN32__
     void win32_require(LPCTSTR fn, BOOL ok);
 #endif
 
-    rust_task_id create_task(rust_task *spawner, const char *name,
-			     size_t init_stack_size);
-    rust_task_id create_task(rust_task * spawner, const char *name);
     void register_task(rust_task *task);
     rust_task *get_task_by_id(rust_task_id id);
     void release_task_id(rust_task_id tid);
+
     void set_exit_status(int code);
 };