librgw: rgw_file_handle refactor, plus get/put

Implement encapsulation of RGWFileHandle in rgw_file_handle,
so return these from rgw_lookup(), add new rgw_fh_rele() to release
internal state.

Currently the rgw_fh_rele just deletes, in future might be extended
with refcnt support.

Implement the first (atomic) stage of i/o using GET and PUT, add a
new librgw_file_gp test driver for this.

Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/src/test/librgw_file_gp.cc b/src/test/librgw_file_gp.cc
new file mode 100644
index 00000000000..958d79a7c08
--- /dev/null
+++ b/src/test/librgw_file_gp.cc
@@ -0,0 +1,158 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2015 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#include <stdint.h>
+#include <tuple>
+#include <iostream>
+
+#include "include/rados/librgw.h"
+#include "include/rados/rgw_file.h"
+
+#include "gtest/gtest.h"
+#include "common/ceph_argparse.h"
+#include "common/debug.h"
+#include "global/global_init.h"
+
+#define dout_subsys ceph_subsys_rgw
+
+namespace {
+  librgw_t rgw = nullptr;
+  string uid("testuser");
+  string access_key("");
+  string secret_key("");
+  struct rgw_fs *fs = nullptr;
+
+  bool do_put = false;
+  bool do_get = false;
+  bool do_delete = false;
+
+  string bucket_name = "sorry_dave";
+  string object_name = "jocaml";
+
+  struct rgw_file_handle *fh = nullptr;
+
+  struct {
+    int argc;
+    char **argv;
+  } saved_args;
+}
+
+TEST(LibRGW, INIT) {
+  int ret = librgw_create(&rgw, nullptr, saved_args.argc, saved_args.argv);
+  ASSERT_EQ(ret, 0);
+  ASSERT_NE(rgw, nullptr);
+}
+
+TEST(LibRGW, MOUNT) {
+  int ret = rgw_mount(rgw, uid.c_str(), access_key.c_str(), secret_key.c_str(),
+		      &fs);
+  ASSERT_EQ(ret, 0);
+  ASSERT_NE(fs, nullptr);
+}
+
+TEST(LibRGW, OBJ_OPEN) {
+  int ret = rgw_lookup(fs, &fs->root_fh, bucket_name.c_str(), &fh,
+		      0 /* flags */);
+  ASSERT_EQ(ret, 0);
+  ret = rgw_open(fs, fh, 0 /* flags */);
+  ASSERT_EQ(ret, 0);
+}
+
+TEST(LibRGW, PUT_OBJECT) {
+  if (do_put) {
+    string data = "hi mom"; // fix this
+    int ret = rgw_write(fs, fh, 0, data.length(), (void*) data.c_str());
+    ASSERT_EQ(ret, 0);
+  }
+}
+
+TEST(LibRGW, GET_OBJECT) {
+  /* XXX soon */
+}
+
+TEST(LibRGW, CLEANUP) {
+  int ret = rgw_close(fs, fh, 0 /* flags */);
+  ASSERT_EQ(ret, 0);
+  ret = rgw_fh_rele(fs, fh, 0 /* flags */);
+  ASSERT_EQ(ret, 0);
+}
+
+TEST(LibRGW, UMOUNT) {
+  if (! fs)
+    return;
+
+  int ret = rgw_umount(fs);
+  ASSERT_EQ(ret, 0);
+}
+
+TEST(LibRGW, SHUTDOWN) {
+  librgw_shutdown(rgw);
+}
+
+int main(int argc, char *argv[])
+{
+  char *v{nullptr};
+  string val;
+  vector<const char*> args;
+
+  argv_to_vec(argc, const_cast<const char**>(argv), args);
+  env_to_vec(args);
+
+  v = getenv("AWS_ACCESS_KEY_ID");
+  if (v) {
+    access_key = v;
+  }
+
+  v = getenv("AWS_SECRET_ACCESS_KEY");
+  if (v) {
+    secret_key = v;
+  }
+
+  for (auto arg_iter = args.begin(); arg_iter != args.end();) {
+    if (ceph_argparse_witharg(args, arg_iter, &val, "--access",
+			      (char*) nullptr)) {
+      access_key = val;
+    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--secret",
+				     (char*) nullptr)) {
+      secret_key = val;
+    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--uid",
+				     (char*) nullptr)) {
+      uid = val;
+    } else if (ceph_argparse_witharg(args, arg_iter, &val, "--bn",
+				     (char*) nullptr)) {
+      bucket_name = val;
+    } else if (ceph_argparse_flag(args, arg_iter, "--get",
+					    (char*) nullptr)) {
+      do_get = true;
+    } else if (ceph_argparse_flag(args, arg_iter, "--put",
+					    (char*) nullptr)) {
+      do_put = true;
+    } else {
+      ++arg_iter;
+    }
+  }
+
+  /* dont accidentally run as anonymous */
+  if ((access_key == "") ||
+      (secret_key == "")) {
+    std::cout << argv[0] << " no AWS credentials, exiting" << std::endl;
+    return EPERM;
+  }
+
+  saved_args.argc = argc;
+  saved_args.argv = argv;
+
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}