feat: add logging system, orchestrator, and documentation

orchestrator.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <string.h>
+
+static pid_t engine_pid = 0;
+static pid_t client_pid = 0;
+
+static void cleanup(int sig) {
+    (void)sig;
+    if (engine_pid > 0) kill(engine_pid, SIGTERM);
+    if (client_pid > 0) kill(client_pid, SIGTERM);
+    while (wait(NULL) > 0);
+    _exit(0);
+}
+
+int main(int argc, char *argv[]) {
+    signal(SIGINT, cleanup);
+    signal(SIGTERM, cleanup);
+
+    engine_pid = fork();
+    if (engine_pid == 0) {
+        execl("./engine/looper", "looper", NULL);
+        perror("execl engine");
+        _exit(1);
+    }
+
+    client_pid = fork();
+    if (client_pid == 0) {
+        if (argc > 2 && strcmp(argv[1], "-s") == 0) {
+            execl("./client/looper-client", "looper-client", "-s", argv[2], NULL);
+        } else {
+            execl("./client/looper-client", "looper-client", NULL);
+        }
+        perror("execl client");
+        _exit(1);
+    }
+
+    int status;
+    pid_t exited = wait(&status);
+    if (exited == engine_pid) {
+        kill(client_pid, SIGTERM);
+        wait(NULL);
+    } else if (exited == client_pid) {
+        kill(engine_pid, SIGTERM);
+        wait(NULL);
+    }
+    return 0;
+}