111 lines
2.5 KiB
C++
111 lines
2.5 KiB
C++
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#include "rust_scheduler.h"
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#include "rust_util.h"
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rust_scheduler::rust_scheduler(rust_kernel *kernel,
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rust_srv *srv,
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size_t num_threads) :
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kernel(kernel),
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srv(srv),
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env(srv->env),
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num_threads(num_threads)
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{
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isaac_init(this, &rctx);
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create_task_threads();
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}
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rust_scheduler::~rust_scheduler() {
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destroy_task_threads();
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}
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rust_task_thread *
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rust_scheduler::create_task_thread(int id) {
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lock.lock();
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rust_srv *srv = this->srv->clone();
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rust_task_thread *thread =
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new (kernel, "rust_task_thread") rust_task_thread(this, srv, id);
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KLOG(kernel, kern, "created task thread: " PTR ", id: %d, index: %d",
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thread, id, thread->list_index);
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lock.unlock();
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return thread;
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}
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void
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rust_scheduler::destroy_task_thread(rust_task_thread *thread) {
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lock.lock();
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KLOG(kernel, kern, "deleting task thread: " PTR ", name: %s, index: %d",
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thread, thread->name, thread->list_index);
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rust_srv *srv = thread->srv;
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delete thread;
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delete srv;
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lock.unlock();
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}
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void
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rust_scheduler::create_task_threads() {
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KLOG(kernel, kern, "Using %d scheduler threads.", num_threads);
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for(size_t i = 0; i < num_threads; ++i) {
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threads.push(create_task_thread(i));
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}
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}
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void
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rust_scheduler::destroy_task_threads() {
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for(size_t i = 0; i < num_threads; ++i) {
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destroy_task_thread(threads[i]);
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}
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}
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void
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rust_scheduler::start_task_threads()
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{
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for(size_t i = 0; i < num_threads; ++i) {
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rust_task_thread *thread = threads[i];
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thread->start();
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}
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for(size_t i = 0; i < num_threads; ++i) {
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rust_task_thread *thread = threads[i];
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thread->join();
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}
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}
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void
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rust_scheduler::kill_all_tasks() {
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for(size_t i = 0; i < num_threads; ++i) {
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rust_task_thread *thread = threads[i];
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thread->kill_all_tasks();
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}
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}
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rust_task_id
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rust_scheduler::create_task(rust_task *spawner, const char *name,
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size_t init_stack_sz) {
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size_t thread_no;
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{
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scoped_lock with(lock);
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thread_no = isaac_rand(&rctx) % num_threads;
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}
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rust_task_thread *thread = threads[thread_no];
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rust_task *t = thread->create_task(spawner, name, init_stack_sz);
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kernel->register_task(t);
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return t->user.id;
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}
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rust_task_id
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rust_scheduler::create_task(rust_task *spawner, const char *name) {
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return create_task(spawner, name, env->min_stack_size);
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}
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void
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rust_scheduler::exit() {
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for(size_t i = 0; i < num_threads; ++i) {
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threads[i]->exit();
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}
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}
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size_t
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rust_scheduler::number_of_threads() {
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return num_threads;
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}
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