ollama/llm/patches/02-shutdown.diff

diff --git a/examples/server/server.cpp b/examples/server/server.cpp
index 11dd82c3..311495a8 100644
--- a/examples/server/server.cpp
+++ b/examples/server/server.cpp
@@ -28,6 +28,7 @@
 #include <chrono>
 #include <condition_variable>
 #include <atomic>
+#include <signal.h>
 
 using json = nlohmann::json;
 
@@ -2394,6 +2395,9 @@ static void append_to_generated_text_from_generated_token_probs(llama_server_con
     }
 }
 
+std::function<void(int)> shutdown_handler;
+inline void signal_handler(int signal) { shutdown_handler(signal); }
+
 int main(int argc, char **argv)
 {
 #if SERVER_VERBOSE != 1
@@ -3014,8 +3018,14 @@ int main(int argc, char **argv)
         std::placeholders::_2,
         std::placeholders::_3
     ));
-    llama.queue_tasks.start_loop();
 
+    shutdown_handler = [&](int) {
+        llama.queue_tasks.terminate();
+    };
+    signal(SIGTERM, signal_handler);
+    signal(SIGINT, signal_handler);
+    llama.queue_tasks.start_loop();
+    svr.stop();
     t.join();
 
     llama_backend_free();
diff --git a/examples/server/utils.hpp b/examples/server/utils.hpp
index 70cce072..2acb1eab 100644
--- a/examples/server/utils.hpp
+++ b/examples/server/utils.hpp
@@ -6,6 +6,7 @@
 #include <mutex>
 #include <condition_variable>
 #include <unordered_map>
+#include <atomic>
 
 #include "json.hpp"
 
@@ -190,6 +191,7 @@ inline std::string format_chatml(std::vector<json> messages)
 struct llama_server_queue {
     int id = 0;
     std::mutex mutex_tasks;
+    std::atomic<bool> running;
     // queues
     std::vector<task_server> queue_tasks;
     std::vector<task_server> queue_tasks_deferred;
@@ -248,9 +250,15 @@ struct llama_server_queue {
         queue_tasks_deferred.clear();
     }
 
-    // Start the main loop. This call is blocking
-    [[noreturn]]
+    // end the start_loop routine
+    void terminate() {
+        running = false;
+        condition_tasks.notify_all();
+    }
+
+    // Start the main loop.
     void start_loop() {
+        running = true;
         while (true) {
             // new task arrived
             LOG_VERBOSE("have new task", {});
@@ -294,8 +302,12 @@ struct llama_server_queue {
             {
                 std::unique_lock<std::mutex> lock(mutex_tasks);
                 if (queue_tasks.empty()) {
+                    if (!running.load()) {
+                        LOG_VERBOSE("ending start_loop", {});
+                        return;
+                    }
                     condition_tasks.wait(lock, [&]{
-                        return !queue_tasks.empty();
+                        return (!queue_tasks.empty() || !running.load());
                     });
                 }
             }