run in thread

runtime/actions.cpp

@@ -7,17 +7,16 @@
 
 using namespace sliger::rpc::action;
 
-auto sliger::rpc::action::RunDebug::perform_action(
-    std::unique_ptr<sliger::rpc::BufferedWriter> writer,
+auto Status::perform_action(std::unique_ptr<sliger::rpc::BufferedWriter> writer,
     vm_provider::VmProvider& vm) -> void
 {
-    auto program = this->instructions;
-    vm.load_and_run(program);
-    writer->write("{ \"ok\": true }");
+    bool running = not vm.done();
+
+    writer->write(std::format("{{ \"ok\": true, \"running\": {}  }}", running));
     writer->flush();
 };
 
-auto sliger::rpc::action::FlameGraph::perform_action(
+auto FlameGraph::perform_action(
     std::unique_ptr<sliger::rpc::BufferedWriter> writer,
     vm_provider::VmProvider& vm) -> void
 {
@@ -31,7 +30,7 @@ auto sliger::rpc::action::FlameGraph::perform_action(
     writer->flush();
 };
 
-auto sliger::rpc::action::CodeCoverage::perform_action(
+auto CodeCoverage::perform_action(
     std::unique_ptr<sliger::rpc::BufferedWriter> writer,
     vm_provider::VmProvider& vm) -> void
 {
@@ -45,8 +44,18 @@ auto sliger::rpc::action::CodeCoverage::perform_action(
     writer->flush();
 };
 
-auto sliger::rpc::action::action_from_json(const sliger::json::Value& value)
-    -> std::unique_ptr<Action>
+auto RunDebug::perform_action(
+    std::unique_ptr<sliger::rpc::BufferedWriter> writer,
+    vm_provider::VmProvider& vm) -> void
+{
+    auto program = this->instructions;
+    vm.load_and_run(program);
+    writer->write("{ \"ok\": true }");
+    writer->flush();
+};
+
+auto sliger::rpc::action::action_from_json(
+    const sliger::json::Value& value) -> std::unique_ptr<Action>
 {
     auto& obj = value.as<sliger::json::Object>();
     auto type = obj.fields.at("type")->as<sliger::json::String>();

runtime/actions.hpp

@@ -6,11 +6,17 @@ namespace sliger::rpc::action {
 
 struct Action {
     virtual auto perform_action(std::unique_ptr<BufferedWriter> writer,
-        vm_provider::VmProvider& vm_provider) -> void
-        = 0;
+        vm_provider::VmProvider& vm_provider) -> void = 0;
     virtual ~Action() = default;
 };
 
+class Status : public Action {
+public:
+    Status() { }
+    auto perform_action(std::unique_ptr<BufferedWriter> writer,
+        vm_provider::VmProvider& vm_provider) -> void;
+};
+
 class FlameGraph : public Action {
 public:
     FlameGraph() { }

runtime/main.cpp

@@ -3,7 +3,6 @@
 #include "rpc_server.hpp"
 #include "vm.hpp"
 #include "vm_provider.hpp"
-#include <cstddef>
 #include <cstdint>
 #include <cstdlib>
 #include <format>
@@ -68,13 +67,13 @@ int main(int argc, char** argv)
         return execute_file_and_exit(argv[2], print_debug);
     }
 
-    auto state = sliger::rpc::vm_provider::VmProvider();
+    auto vm_provider = sliger::rpc::vm_provider::VmProvider();
 
     auto rpc = sliger::rpc::RpcServer(
         [&](std::unique_ptr<sliger::json::Value> req,
             std::unique_ptr<sliger::rpc::BufferedWriter> writer) {
             auto action = sliger::rpc::action::action_from_json(*req);
-            action->perform_action(std::move(writer), state);
+            action->perform_action(std::move(writer), vm_provider);
         });
 
     std::cout << "binding on 127.0.0.1:13370\n";

runtime/vm.hpp

@@ -157,6 +157,8 @@ public:
     void run_n_instructions(size_t amount);
     void run_instruction();
 
+    inline auto done() const -> bool { return this->pc >= this->program_size; }
+
     inline auto flame_graph_json() const -> std::string
     {
         return json::to_json(this->flame_graph);
@@ -215,11 +217,6 @@ private:
         return this->program[this->pc];
     }
 
-    inline auto done() const -> bool
-    {
-        return not this->halt and this->pc >= this->program_size;
-    }
-
     inline auto fn_stack_at(size_t idx) -> Value&
     {
         return this->stack.at(this->bp + idx);
@@ -254,8 +251,6 @@ private:
         { 2, stderr },
     };
 
-    bool halt = false;
-
     FlameGraphBuilder flame_graph;
     CodeCoverageBuilder code_coverage;
 };

runtime/vm_provider.cpp

@@ -1,22 +1,32 @@
 #include "vm_provider.hpp"
 #include "vm.hpp"
+#include <mutex>
+#include <thread>
 
 using namespace sliger::rpc::vm_provider;
 
 auto VmProvider::load_and_run(std::vector<uint32_t> instructions) -> void
 {
-    auto vm = VM(instructions,
+    std::lock_guard lock(this->mutex);
+
+    this->vm = VM(instructions,
         {
             .flame_graph = true,
             .code_coverage = true,
             .print_debug = false,
         });
-    vm.run_until_done();
-    this->vm = vm;
+
+    this->running_thread = std::thread([&]() {
+        while (not this->done()) {
+            this->run_timeslot();
+        }
+    });
 }
 
 auto VmProvider::flame_graph_json() -> std::optional<std::string>
 {
+    std::lock_guard lock(this->mutex);
+
     if (this->vm) {
         return this->vm->flame_graph_json();
     } else {
@@ -26,9 +36,28 @@ auto VmProvider::flame_graph_json() -> std::optional<std::string>
 
 auto VmProvider::code_coverage_json() -> std::optional<std::string>
 {
+    std::lock_guard lock(this->mutex);
+
     if (this->vm) {
         return this->vm->code_coverage_json();
     } else {
         return {};
     }
 }
+
+void VmProvider::run_timeslot()
+{
+    std::lock_guard lock(this->mutex);
+
+    if (!this->vm.has_value())
+        return;
+
+    this->vm->run_n_instructions(100);
+}
+
+auto VmProvider::done() -> bool
+{
+    std::lock_guard lock(this->mutex);
+
+    return not this->vm.has_value() or this->vm->done();
+}

runtime/vm_provider.hpp

@@ -1,6 +1,8 @@
 #pragma once
 
 #include "vm.hpp"
+#include <mutex>
+#include <thread>
 
 namespace sliger::rpc::vm_provider {
 class VmProvider {
@@ -11,8 +13,15 @@ public:
     auto flame_graph_json() -> std::optional<std::string>;
     auto code_coverage_json() -> std::optional<std::string>;
 
+    auto done() -> bool;
+
 private:
+    void run_timeslot();
+
+    std::mutex mutex;
+
     std::optional<VM> vm;
+    std::optional<std::thread> running_thread;
 };
 
 }