Fix: use new id type in all tasks.

app/playground/main.cpp

@@ -5,6 +5,7 @@
 #include <atomic>
 
 #include <pls/pls.h>
+#include <pls/internal/base/prohibit_new.h>
 
 using namespace pls;
 
@@ -42,10 +43,8 @@ protected:
         int left_result;
         int right_result;
 
-        fib left_child{num_ - 1, &left_result};
-        spawn_child(left_child);
-        fib right_child{num_ - 2, &right_result};
-        spawn_child(right_child);
+        spawn_child(fib{num_ - 1, &left_result});
+        spawn_child(fib{num_ - 2, &right_result});
 
         wait_for_all();
         *result_ = left_result + right_result;
@@ -58,14 +57,14 @@ public:
 
 
 int main() {
-    scheduler my_scheduler{&my_scheduler_memory, 1};
+    scheduler my_scheduler{&my_scheduler_memory, 4};
 
     auto start = std::chrono::high_resolution_clock::now();
     my_scheduler.perform_work([] (){
         int result;
 
         fib fib_sub_task{45, &result};
-        tbb_task tbb_task{&fib_sub_task};
+        tbb_task tbb_task{&fib_sub_task, task_id{1}};
         scheduler::execute_task(tbb_task);
 
         std::cout << "Result: " << result << std::endl;

lib/pls/include/pls/internal/scheduling/abstract_task.h

@@ -10,23 +10,25 @@ namespace pls {
     namespace internal {
         namespace scheduling {
             class abstract_task {
+            public:
                 struct id {
                     uint32_t id_;
                     bool auto_generated_;
 
-                    explicit id(uint32_t id, bool auto_generated=true): id_{id}, auto_generated_{auto_generated} {};
+                    explicit id(uint32_t id, bool auto_generated=false): id_{id}, auto_generated_{auto_generated} {};
 
                     bool operator==(const abstract_task::id& other) const {
                         return id_ == other.id_ && auto_generated_ == other.auto_generated_;
                     }
                 };
 
+            private:
                 int depth_;
                 abstract_task::id unique_id_;
                 abstract_task* child_task_;
 
             public:
-                abstract_task(int depth, abstract_task::id unique_id):
+                abstract_task(const int depth, const abstract_task::id& unique_id):
                     depth_{depth},
                     unique_id_{unique_id},
                     child_task_{nullptr} {}
@@ -37,6 +39,7 @@ namespace pls {
 
                 void set_depth(int depth) { depth_ = depth; }
                 int depth() const { return depth_; }
+                id unique_id() const { return unique_id_; }
             protected:
                 virtual bool internal_stealing(abstract_task* other_task) = 0;
                 virtual bool split_task(base::spin_lock* lock) = 0;

lib/pls/include/pls/internal/scheduling/root_task.h

@@ -19,7 +19,7 @@ namespace pls {
                 base::spin_lock finished_lock_;
             public:
                 explicit root_task(Function function):
-                    abstract_task{0, 0},
+                    abstract_task{0, id{0, true}},
                     function_{function},
                     finished_{false} {}
 
@@ -51,7 +51,7 @@ namespace pls {
 
             public:
                 explicit root_worker_task(root_task<Function>* master_task):
-                        abstract_task{0, 0},
+                        abstract_task{0, id{0, true}},
                         master_task_{master_task} {}
 
                 void execute() override {

lib/pls/include/pls/internal/scheduling/run_on_n_threads_task.h

@@ -37,7 +37,7 @@ namespace pls {
                 }
             public:
                 run_on_n_threads_task(Function function, int num_threads):
-                    abstract_task{PLS_UNIQUE_ID, 0},
+                    abstract_task{0, id{PLS_UNIQUE_ID, true}},
                     function_{function},
                     counter{num_threads - 1} {}
 
@@ -66,7 +66,7 @@ namespace pls {
                 run_on_n_threads_task<Function>* root_;
             public:
                 run_on_n_threads_task_worker(Function function, run_on_n_threads_task<Function>* root):
-                        abstract_task{PLS_UNIQUE_ID, 0},
+                        abstract_task{0, id{PLS_UNIQUE_ID, true}},
                         function_{function},
                         root_{root} {}
 

lib/pls/include/pls/internal/scheduling/tbb_task.h

@@ -70,9 +70,10 @@ namespace pls {
                 bool split_task(base::spin_lock* /*lock*/) override;
 
             public:
-                explicit tbb_task(tbb_sub_task* root_task):
-                        abstract_task{0, 0},
+                explicit tbb_task(tbb_sub_task* root_task, const abstract_task::id& id):
+                        abstract_task{0, id},
                         root_task_{root_task},
+                        my_stack_{nullptr},
                         deque_{},
                         last_stolen_{nullptr} {};
 

lib/pls/include/pls/pls.h

 #ifndef PLS_LIBRARY_H
 #define PLS_LIBRARY_H
 
-#include <pls/internal/scheduling/scheduler.h>
-#include <pls/internal/scheduling/tbb_task.h>
+#include "pls/internal/scheduling/scheduler.h"
+#include "pls/internal/scheduling/tbb_task.h"
+#include "pls/internal/scheduling/abstract_task.h"
 
 namespace pls {
     using internal::scheduling::scheduler;
     using internal::scheduling::static_scheduler_memory;
+    using task_id = internal::scheduling::abstract_task::id;
 
     using internal::scheduling::tbb_sub_task;
     using internal::scheduling::tbb_task;

lib/pls/src/internal/scheduling/tbb_task.cpp

@@ -82,7 +82,7 @@ namespace pls {
                 if (stolen_sub_task == nullptr) {
                     return false;
                 }
-                tbb_task task{stolen_sub_task};
+                tbb_task task{stolen_sub_task, this->unique_id()};
 
                 // In success case, unlock.
                 // TODO: this locking is complicated and error prone.