1 files changed, 60 insertions, 0 deletions
diff --git a/ui/daemon/ui.j2.c b/ui/daemon/ui.j2.c
new file mode 100644
index 0000000..7d92f9d
--- /dev/null
+++ b/ui/daemon/ui.j2.c
@@ -0,0 +1,60 @@
+// Author:  Paul Oliver <contact@pauloliver.dev>
+// Project: Salis
+
+// Lightweight UI for the Salis simulator with minimal output.
+// Can be interrupted through OS signals.
+// Ideal for running Salis in the background.
+
+volatile bool g_running;
+uint64_t      g_step_block;
+
+void sig_handler(int signo) {
+    switch (signo) {
+    case SIGINT:
+    case SIGTERM:
+        printf("Signal received, will stop simulator soon...\n");
+        g_running = false;
+        break;
+    }
+}
+
+void step_block() {
+    clock_t beg = clock();
+    salis_step(g_step_block - (g_steps % g_step_block));
+    clock_t end = clock();
+
+    if ((end - beg) < (CLOCKS_PER_SEC * 4)) {
+        g_step_block <<= 1;
+    }
+
+    if ((end - beg) >= (CLOCKS_PER_SEC * 2) && g_step_block != 1) {
+        g_step_block >>= 1;
+    }
+
+    printf("Simulator running on step '%#lx'\n", g_steps);
+}
+
+int main() {
+    {% if args.command == "new" %}
+    salis_init();
+    {% elif args.command == "load" %}
+    salis_load();
+    {% endif %}
+
+    g_running    = true;
+    g_step_block = 1;
+
+    signal(SIGINT,  sig_handler);
+    signal(SIGTERM, sig_handler);
+
+    while (g_running) {
+        step_block();
+    }
+
+    printf("Saving simulation...\n");
+    salis_save("{{ sim_path }}");
+    salis_free();
+
+    printf("Exiting salis...\n");
+    return 0;
+}