From 7d36403836511ab0745791ce98498cf5112633c1 Mon Sep 17 00:00:00 2001
From: Aargh Rai <aargh.rai+git@gmail.com>
Date: Fri, 24 Jul 2026 09:32:54 +0530
Subject: fixed the quit command

---
 src/ipc/engine_message.c | 15 +++++++++++++++
 src/main.c               | 17 ++++++++++++++---
 src/uci.c                |  5 ++++-
 3 files changed, 33 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/ipc/engine_message.c b/src/ipc/engine_message.c
index 76814f4..c54a02e 100644
--- a/src/ipc/engine_message.c
+++ b/src/ipc/engine_message.c
@@ -16,6 +16,17 @@ void engine_message_handler_init(engine_message_handler_t *handle) {
   handle->popped_count = 0;
 }
 
+void engine_message_handler_deinit(engine_message_handler_t *handle) {
+  engine_message_t *next, *message = handle->oldest_valid;
+
+  int count = handle->count;
+  while (count-- > 0) {
+    next = message->next;
+    engine_message_deinit(message);
+    message = next;
+  }
+}
+
 void engine_message_handler_acquire(engine_message_handler_t *handle) {
   while (atomic_flag_test_and_set(&handler_busy));
 }
@@ -111,6 +122,10 @@ bool engine_message_is_ready(engine_message_t *message) {
 
 void engine_messages_deinit(engine_messages_t *messages) {
   assert(messages != NULL);
+  for (int i = 0; i < 10; i++) {
+    engine_message_handler_deinit(messages->data[i]);
+    free(messages->data[i]);
+  }
   free(messages->data);
 }
 
diff --git a/src/main.c b/src/main.c
index 6dd5e13..5ece480 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,6 +8,7 @@
 #include "ipc/state.h"
 #include "ipc/threads.h"
 #include "ipc/uci.h"
+#include "engine/ttable.h"
 #include "engine/magic.h"
 
 void *uci_thread_func(void* data) {
@@ -17,6 +18,7 @@ void *uci_thread_func(void* data) {
 
 int main(int argc, char** argv) {
   magic_init();
+  zobrist_init();
 
   ipc_state_t ipc_state;
   ipc_state_init(&ipc_state);
@@ -33,21 +35,29 @@ int main(int argc, char** argv) {
 waiting_for_go:
   engine_messages_refresh(&ipc_state.engine_messages);
 skip_refresh:
-  ipc_state_wait_for_event(&ipc_state, EVENT_ENGINE_GO);
+  bool is_stop, quit;
+  while (
+    !ipc_state_is_event(&ipc_state, EVENT_ENGINE_GO) &&
+    !(quit = ipc_state_is_event(&ipc_state, EVENT_QUIT))
+  );
+  if (quit) goto quit;
 
   engine_threads.running_count = ipc_state.uci_state.threads;
   ipc_state.engine_messages.count = ipc_state.uci_state.threads;
-  threads_reserve(&engine_threads, ipc_state.uci_state.threads);
+  threads_reserve(&engine_threads, engine_threads.running_count);
   threads_go(&engine_threads);
 
   ipc_state_set_event(&ipc_state, EVENT_UCI_RUNNING);
 
-  bool is_stop;
   while (1) {
     while (
       !ipc_state_is_event(&ipc_state, EVENT_ENGINE_RUNNING) &&
+      !(quit = ipc_state_is_event(&ipc_state, EVENT_QUIT)) &&
       !(is_stop = ipc_state_is_event(&ipc_state, EVENT_ENGINE_STOP))
     );
+    if (quit) {
+      break;
+    }
     if (is_stop) {
       threads_cleanup(&engine_threads);
       ipc_state_set_event(&ipc_state, EVENT_UCI_RUNNING);
@@ -57,6 +67,7 @@ skip_refresh:
     ipc_state_set_event(&ipc_state, EVENT_UCI_RUNNING);
   }
 
+quit:
   ipc_state_deinit(&ipc_state);
   pthread_cancel(uci_thread);
   threads_deinit(&engine_threads);
diff --git a/src/uci.c b/src/uci.c
index cc16954..f842328 100644
--- a/src/uci.c
+++ b/src/uci.c
@@ -59,6 +59,7 @@ void handle_ipc(ipc_state_t *state) {
   assert(signal < UCI_SIGNAL_COUNT);
   if (signal == UCI_SIGNAL_NONE) return;
   if (signal == UCI_SIGNAL_QUIT) {
+    ipc_state_set_event(state, EVENT_QUIT);
     return;
   }
   if (signal == UCI_SIGNAL_GO) {
@@ -151,7 +152,9 @@ void handle_ipc(ipc_state_t *state) {
     return;
   }
   if (signal == UCI_SIGNAL_STOP) {
-    printf("uci stopping\n");
+    ipc_state_set_event(state, EVENT_ENGINE_STOP);
+    state->uci_state.signal = UCI_SIGNAL_NONE;
+    state->uci_state.current_state = UCI_STATE_IDLE;
     return;
   }
 }
-- 
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