remove ceph code

This patch removes initial ceph code, due to license issue.

Change-Id: I092d44f601cdf34aed92300fe13214925563081c
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 0 insertions, 298 deletions

diff --git a/src/ceph/examples/librados/hello_world.cc b/src/ceph/examples/librados/hello_world.cc
deleted file mode 100644
index 48e1fd1..0000000
--- a/src/ceph/examples/librados/hello_world.cc
+++ /dev/null
@@ -1,298 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * 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.
- * Copyright 2013 Inktank
- */
-
-// install the librados-dev package to get this
-#include <rados/librados.hpp>
-#include <iostream>
-#include <string>
-
-int main(int argc, const char **argv)
-{
-  int ret = 0;
-
-  // we will use all of these below
-  const char *pool_name = "hello_world_pool";
-  std::string hello("hello world!");
-  std::string object_name("hello_object");
-  librados::IoCtx io_ctx;
-
-  // first, we create a Rados object and initialize it
-  librados::Rados rados;
-  {
-    ret = rados.init("admin"); // just use the client.admin keyring
-    if (ret < 0) { // let's handle any error that might have come back
-      std::cerr << "couldn't initialize rados! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we just set up a rados cluster object" << std::endl;
-    }
-  }
-
-  /*
-   * Now we need to get the rados object its config info. It can
-   * parse argv for us to find the id, monitors, etc, so let's just
-   * use that.
-   */
-  {
-    ret = rados.conf_parse_argv(argc, argv);
-    if (ret < 0) {
-      // This really can't happen, but we need to check to be a good citizen.
-      std::cerr << "failed to parse config options! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we just parsed our config options" << std::endl;
-      // We also want to apply the config file if the user specified
-      // one, and conf_parse_argv won't do that for us.
-      for (int i = 0; i < argc; ++i) {
-	if ((strcmp(argv[i], "-c") == 0) || (strcmp(argv[i], "--conf") == 0)) {
-	  ret = rados.conf_read_file(argv[i+1]);
-	  if (ret < 0) {
-	    // This could fail if the config file is malformed, but it'd be hard.
-	    std::cerr << "failed to parse config file " << argv[i+1]
-	              << "! error" << ret << std::endl;
-	    ret = EXIT_FAILURE;
-	    goto out;
-	  }
-	  break;
-	}
-      }
-    }
-  }
-
-  /*
-   * next, we actually connect to the cluster
-   */
-  {
-    ret = rados.connect();
-    if (ret < 0) {
-      std::cerr << "couldn't connect to cluster! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we just connected to the rados cluster" << std::endl;
-    }
-  }
-
-  /*
-   * let's create our own pool instead of scribbling over real data.
-   * Note that this command creates pools with default PG counts specified
-   * by the monitors, which may not be appropriate for real use -- it's fine
-   * for testing, though.
-   */
-  {
-    ret = rados.pool_create(pool_name);
-    if (ret < 0) {
-      std::cerr << "couldn't create pool! error " << ret << std::endl;
-      return EXIT_FAILURE;
-    } else {
-      std::cout << "we just created a new pool named " << pool_name << std::endl;
-    }
-  }
-
-  /*
-   * create an "IoCtx" which is used to do IO to a pool
-   */
-  {
-    ret = rados.ioctx_create(pool_name, io_ctx);
-    if (ret < 0) {
-      std::cerr << "couldn't set up ioctx! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we just created an ioctx for our pool" << std::endl;
-    }
-  }
-
-  /*
-   * now let's do some IO to the pool! We'll write "hello world!" to a
-   * new object.
-   */
-  {
-    /*
-     * "bufferlist"s are Ceph's native transfer type, and are carefully
-     * designed to be efficient about copying. You can fill them
-     * up from a lot of different data types, but strings or c strings
-     * are often convenient. Just make sure not to deallocate the memory
-     * until the bufferlist goes out of scope and any requests using it
-     * have been finished!
-     */
-    librados::bufferlist bl;
-    bl.append(hello);
-
-    /*
-     * now that we have the data to write, let's send it to an object.
-     * We'll use the synchronous interface for simplicity.
-     */
-    ret = io_ctx.write_full(object_name, bl);
-    if (ret < 0) {
-      std::cerr << "couldn't write object! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we just wrote new object " << object_name
-	        << ", with contents\n" << hello << std::endl;
-    }
-  }
-
-  /*
-   * now let's read that object back! Just for fun, we'll do it using
-   * async IO instead of synchronous. (This would be more useful if we
-   * wanted to send off multiple reads at once; see
-   * http://docs.ceph.com/docs/master/rados/api/librados/#asychronous-io )
-   */
-  {
-    librados::bufferlist read_buf;
-    int read_len = 4194304; // this is way more than we need
-    // allocate the completion from librados
-    librados::AioCompletion *read_completion = librados::Rados::aio_create_completion();
-    // send off the request.
-    ret = io_ctx.aio_read(object_name, read_completion, &read_buf, read_len, 0);
-    if (ret < 0) {
-      std::cerr << "couldn't start read object! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    }
-    // wait for the request to complete, and check that it succeeded.
-    read_completion->wait_for_complete();
-    ret = read_completion->get_return_value();
-    if (ret < 0) {
-      std::cerr << "couldn't read object! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we read our object " << object_name
-	  << ", and got back " << ret << " bytes with contents\n";
-      std::string read_string;
-      read_buf.copy(0, ret, read_string);
-      std::cout << read_string << std::endl;
-    }
-  }
-
-  /*
-   * We can also use xattrs that go alongside the object.
-   */
-  {
-    librados::bufferlist version_bl;
-    version_bl.append('1');
-    ret = io_ctx.setxattr(object_name, "version", version_bl);
-    if (ret < 0) {
-      std::cerr << "failed to set xattr version entry! error "
-		<< ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we set the xattr 'version' on our object!" << std::endl;
-    }
-  }
-
-  /*
-   * And if we want to be really cool, we can do multiple things in a single
-   * atomic operation. For instance, we can update the contents of our object
-   * and set the version at the same time.
-   */
-  {
-    librados::bufferlist bl;
-    bl.append(hello);
-    bl.append("v2");
-    librados::ObjectWriteOperation write_op;
-    write_op.write_full(bl);
-    librados::bufferlist version_bl;
-    version_bl.append('2');
-    write_op.setxattr("version", version_bl);
-    ret = io_ctx.operate(object_name, &write_op);
-    if (ret < 0) {
-      std::cerr << "failed to do compound write! error " << ret << std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we overwrote our object " << object_name
-		<< " with contents\n" << bl.c_str() << std::endl;
-    }
-  }
-
-  /*
-   * And to be even cooler, we can make sure that the object looks the
-   * way we expect before doing the write! Notice how this attempt fails
-   * because the xattr differs.
-   */
-  {
-    librados::ObjectWriteOperation failed_write_op;
-    librados::bufferlist bl;
-    bl.append(hello);
-    bl.append("v2");
-    librados::ObjectWriteOperation write_op;
-    write_op.write_full(bl);
-    librados::bufferlist version_bl;
-    version_bl.append('2');
-    librados::bufferlist old_version_bl;
-    old_version_bl.append('1');
-    failed_write_op.cmpxattr("version", LIBRADOS_CMPXATTR_OP_EQ, old_version_bl);
-    failed_write_op.write_full(bl);
-    failed_write_op.setxattr("version", version_bl);
-    ret = io_ctx.operate(object_name, &failed_write_op);
-    if (ret < 0) {
-      std::cout << "we just failed a write because the xattr wasn't as specified"
-		<< std::endl;
-    } else {
-      std::cerr << "we succeeded on writing despite an xattr comparison mismatch!"
-		<< std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    }
-
-    /*
-     * Now let's do the update with the correct xattr values so it
-     * actually goes through
-     */
-    bl.clear();
-    bl.append(hello);
-    bl.append("v3");
-    old_version_bl.clear();
-    old_version_bl.append('2');
-    version_bl.clear();
-    version_bl.append('3');
-    librados::ObjectWriteOperation update_op;
-    update_op.cmpxattr("version", LIBRADOS_CMPXATTR_OP_EQ, old_version_bl);
-    update_op.write_full(bl);
-    update_op.setxattr("version", version_bl);
-    ret = io_ctx.operate(object_name, &update_op);
-    if (ret < 0) {
-      std::cerr << "failed to do a compound write update! error " << ret
-		<< std::endl;
-      ret = EXIT_FAILURE;
-      goto out;
-    } else {
-      std::cout << "we overwrote our object " << object_name
-	        << " following an xattr test with contents\n" << bl.c_str()
-	        << std::endl;
-    }
-  }
-
-  ret = EXIT_SUCCESS;
-  out:
-  /*
-   * And now we're done, so let's remove our pool and then
-   * shut down the connection gracefully.
-   */
-  int delete_ret = rados.pool_delete(pool_name);
-  if (delete_ret < 0) {
-    // be careful not to
-    std::cerr << "We failed to delete our test pool!" << std::endl;
-    ret = EXIT_FAILURE;
-  }
-
-  rados.shutdown();
-
-  return ret;
-}