chore: add example for testing blocking tasks

example/blocking.c

@@ -0,0 +1,38 @@
+#include <unistd.h>
+
+#include "lnm/log.h"
+#include "lnm/http/loop.h"
+
+lnm_err ctx_init(void **c_ctx, void *gctx) {
+  *c_ctx = NULL;
+
+  return lnm_err_ok;
+}
+
+void ctx_reset(void *c_ctx) {}
+void ctx_free(void *c_ctx) {}
+
+lnm_http_step_err slow_step(lnm_http_conn *conn) {
+  sleep(1);
+
+  return lnm_http_step_err_done;
+}
+
+int main() {
+  lnm_http_loop *hl;
+  lnm_http_step *step = NULL;
+  lnm_http_route *route;
+
+  lnm_http_loop_init(&hl, NULL, ctx_init,
+                     ctx_reset,
+                     ctx_free);
+
+  lnm_http_step_init(&step, slow_step);
+  lnm_http_route_init_literal(&route, lnm_http_method_get, "/", step);
+  lnm_http_loop_route_add(hl, route);
+
+  lnm_log_init_global();
+  lnm_log_register_stdout(lnm_log_level_debug);
+
+  lnm_http_loop_run(hl, 8080, 1);
+}