Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/src/test/crimson/test_buffer.cc b/src/test/crimson/test_buffer.cc
new file mode 100644
index 000000000..64a815bd2
--- /dev/null
+++ b/src/test/crimson/test_buffer.cc
@@ -0,0 +1,50 @@
+#include <iostream>
+#include <seastar/core/app-template.hh>
+#include <seastar/core/future-util.hh>
+#include <seastar/core/reactor.hh>
+#include "include/buffer.h"
+
+// allocate a foreign buffer on each cpu, collect them all into a bufferlist,
+// and destruct it on this cpu
+seastar::future<> test_foreign_bufferlist()
+{
+  auto make_foreign_buffer = [] (unsigned cpu) {
+    return seastar::smp::submit_to(cpu, [=] {
+      bufferlist bl;
+      seastar::temporary_buffer<char> buf("abcd", 4);
+      bl.append(buffer::create(std::move(buf)));
+      return bl;
+    });
+  };
+  auto reduce = [] (bufferlist&& lhs, bufferlist&& rhs) {
+    bufferlist bl;
+    bl.claim_append(lhs);
+    bl.claim_append(rhs);
+    return bl;
+  };
+  return seastar::map_reduce(seastar::smp::all_cpus(), make_foreign_buffer,
+                             bufferlist(), reduce).then(
+    [] (bufferlist&& bl) {
+      if (bl.length() != 4 * seastar::smp::count) {
+        auto e = std::make_exception_ptr(std::runtime_error("wrong buffer size"));
+        return seastar::make_exception_future<>(e);
+      }
+      bl.clear();
+      return seastar::make_ready_future<>();
+    });
+}
+
+int main(int argc, char** argv)
+{
+  seastar::app_template app;
+  return app.run(argc, argv, [] {
+    return seastar::now().then(
+      &test_foreign_bufferlist
+    ).then([] {
+      std::cout << "All tests succeeded" << std::endl;
+    }).handle_exception([] (auto eptr) {
+      std::cout << "Test failure" << std::endl;
+      return seastar::make_exception_future<>(eptr);
+    });
+  });
+}