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+/*****************************************************************************
+
+Copyright (c) 2013, 2015, Oracle and/or its affiliates. All Rights Reserved.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
+
+*****************************************************************************/
+
+/**************************************************//**
+@file fsp/fsp0space.cc
+General shared tablespace implementation.
+
+Created 2012-11-16 by Sunny Bains as srv/srv0space.cc
+*******************************************************/
+
+#include "ha_prototypes.h"
+
+#include "fsp0space.h"
+#include "fsp0sysspace.h"
+#include "fsp0fsp.h"
+#include "os0file.h"
+
+#include "my_sys.h"
+
+
+/** Check if two tablespaces have common data file names.
+@param other_space Tablespace to check against this.
+@return true if they have the same data filenames and paths */
+bool
+Tablespace::intersection(
+ const Tablespace* other_space)
+{
+ files_t::const_iterator end = other_space->m_files.end();
+
+ for (files_t::const_iterator it = other_space->m_files.begin();
+ it != end;
+ ++it) {
+
+ if (find(it->m_filename)) {
+
+ return(true);
+ }
+ }
+
+ return(false);
+}
+
+/** Frees the memory allocated by the SysTablespace object. */
+void
+Tablespace::shutdown()
+{
+ files_t::iterator end = m_files.end();
+
+ for (files_t::iterator it = m_files.begin(); it != end; ++it) {
+ it->shutdown();
+ }
+
+ m_files.clear();
+
+ m_space_id = ULINT_UNDEFINED;
+}
+
+/** Get the sum of the file sizes of each Datafile in a tablespace
+@return ULINT_UNDEFINED if the size is invalid else the sum of sizes */
+ulint
+Tablespace::get_sum_of_sizes() const
+{
+ ulint sum = 0;
+
+ files_t::const_iterator end = m_files.end();
+
+ for (files_t::const_iterator it = m_files.begin(); it != end; ++it) {
+
+#ifndef _WIN32
+ if (sizeof(off_t) < 5
+ && it->m_size >= (1UL << (32UL - UNIV_PAGE_SIZE_SHIFT))) {
+
+ ib::error() << "File size must be < 4 GB with this"
+ " MySQL binary-operating system combination."
+ " In some OS's < 2 GB";
+
+ return(ULINT_UNDEFINED);
+ }
+#endif /* _WIN32 */
+ sum += it->m_size;
+ }
+
+ return(sum);
+}
+
+/** Note that the data file was found.
+@param[in,out] file Data file object to set */
+void
+Tablespace::file_found(Datafile& file)
+{
+ /* Note that the file exists and can be opened
+ in the appropriate mode. */
+ file.m_exists = true;
+
+ file.set_open_flags(
+ &file == &m_files.front()
+ ? OS_FILE_OPEN_RETRY : OS_FILE_OPEN);
+}
+
+/** Open or Create the data files if they do not exist.
+@param[in] is_temp whether this is a temporary tablespace
+@return DB_SUCCESS or error code */
+dberr_t
+Tablespace::open_or_create(bool is_temp)
+{
+ fil_space_t* space = NULL;
+ dberr_t err = DB_SUCCESS;
+
+ ut_ad(!m_files.empty());
+
+ files_t::iterator begin = m_files.begin();
+ files_t::iterator end = m_files.end();
+
+ for (files_t::iterator it = begin; it != end; ++it) {
+
+ if (it->m_exists) {
+ err = it->open_or_create(
+ m_ignore_read_only
+ ? false : srv_read_only_mode);
+ } else {
+ err = it->open_or_create(
+ m_ignore_read_only
+ ? false : srv_read_only_mode);
+
+ /* Set the correct open flags now that we have
+ successfully created the file. */
+ if (err == DB_SUCCESS) {
+ file_found(*it);
+ }
+ }
+
+ if (err != DB_SUCCESS) {
+ break;
+ }
+
+ bool atomic_write;
+
+#if !defined(NO_FALLOCATE) && defined(UNIV_LINUX)
+ if (!srv_use_doublewrite_buf) {
+ atomic_write = fil_fusionio_enable_atomic_write(
+ it->m_handle);
+ } else {
+ atomic_write = false;
+ }
+#else
+ atomic_write = false;
+#endif /* !NO_FALLOCATE && UNIV_LINUX */
+
+ /* We can close the handle now and open the tablespace
+ the proper way. */
+ it->close();
+
+ if (it == begin) {
+ /* First data file. */
+
+ ulint flags;
+
+ flags = fsp_flags_set_page_size(0, univ_page_size);
+
+ /* Create the tablespace entry for the multi-file
+ tablespace in the tablespace manager. */
+ space = fil_space_create(
+ m_name, m_space_id, flags, is_temp
+ ? FIL_TYPE_TEMPORARY : FIL_TYPE_TABLESPACE, it->m_crypt_info);
+ }
+
+ ut_a(fil_validate());
+
+ /* Create the tablespace node entry for this data file. */
+ if (!fil_node_create(
+ it->m_filepath, it->m_size, space, false,
+ atomic_write)) {
+
+ err = DB_ERROR;
+ break;
+ }
+ }
+
+ return(err);
+}
+
+/** Find a filename in the list of Datafiles for a tablespace
+@return true if the filename exists in the data files */
+bool
+Tablespace::find(const char* filename)
+{
+ files_t::const_iterator end = m_files.end();
+
+ for (files_t::const_iterator it = m_files.begin(); it != end; ++it) {
+
+ if (innobase_strcasecmp(filename, it->m_filename) == 0) {
+ return(true);
+ }
+ }
+
+ return(false);
+}
+
+
+/** Delete all the data files. */
+void
+Tablespace::delete_files()
+{
+ files_t::iterator end = m_files.end();
+
+ for (files_t::iterator it = m_files.begin(); it != end; ++it) {
+
+ it->close();
+
+ bool file_pre_exists;
+ bool success = os_file_delete_if_exists(
+ innodb_data_file_key, it->m_filepath, &file_pre_exists);
+
+ if (success && file_pre_exists) {
+ ib::info() << "Removed temporary tablespace data"
+ " file: \"" << it->m_name << "\"";
+ }
+ }
+}
+
+/** Check if undo tablespace.
+@return true if undo tablespace */
+bool
+Tablespace::is_undo_tablespace(
+ ulint id)
+{
+ return(id <= srv_undo_tablespaces_open
+ && id != srv_sys_space.space_id()
+ && id != srv_tmp_space.space_id());
+}
+
+/** Use the ADD DATAFILE path to create a Datafile object and add it to the
+front of m_files.
+Parse the datafile path into a path and a filename with extension 'ibd'.
+This datafile_path provided may or may not be an absolute path, but it
+must end with the extension .ibd and have a basename of at least 1 byte.
+
+Set tablespace m_path member and add a Datafile with the filename.
+@param[in] datafile_path full path of the tablespace file. */
+dberr_t
+Tablespace::add_datafile(
+ const char* datafile_added)
+{
+ /* The path provided ends in ".ibd". This was assured by
+ validate_create_tablespace_info() */
+ ut_d(const char* dot = strrchr(datafile_added, '.'));
+ ut_ad(dot != NULL && 0 == strcmp(dot, DOT_IBD));
+
+ char* filepath = mem_strdup(datafile_added);
+ os_normalize_path(filepath);
+
+ /* If the path is an absolute path, separate it onto m_path and a
+ basename. For relative paths, make the whole thing a basename so that
+ it can be appended to the datadir. */
+ bool is_abs_path = is_absolute_path(filepath);
+ size_t dirlen = (is_abs_path ? dirname_length(filepath) : 0);
+ const char* basename = filepath + dirlen;
+
+ /* If the pathname contains a directory separator, fill the
+ m_path member which is the default directory for files in this
+ tablespace. Leave it null otherwise. */
+ if (dirlen > 0) {
+ set_path(filepath, dirlen);
+ }
+
+ /* Now add a new Datafile and set the filepath
+ using the m_path created above. */
+ m_files.push_back(Datafile(m_name, m_flags,
+ FIL_IBD_FILE_INITIAL_SIZE, 0));
+ Datafile* datafile = &m_files.back();
+ datafile->make_filepath(m_path, basename, IBD);
+
+ ut_free(filepath);
+
+ return(DB_SUCCESS);
+}