mirror of
https://github.com/MariaDB/server.git
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229 lines
7 KiB
C++
229 lines
7 KiB
C++
/* -*- c-basic-offset: 2 -*- */
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/*
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Copyright(C) 2010 Tetsuro IKEDA
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Copyright(C) 2011-2013 Kentoku SHIBA
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Copyright(C) 2011-2015 Kouhei Sutou <kou@clear-code.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
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*/
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#include <mrn_mysql.h>
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#include "mrn_path_mapper.hpp"
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#include <string.h>
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namespace mrn {
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char *PathMapper::default_path_prefix = NULL;
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char *PathMapper::default_mysql_data_home_path = NULL;
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PathMapper::PathMapper(const char *original_mysql_path,
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const char *path_prefix,
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const char *mysql_data_home_path)
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: original_mysql_path_(original_mysql_path),
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path_prefix_(path_prefix),
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mysql_data_home_path_(mysql_data_home_path) {
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db_path_[0] = '\0';
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db_name_[0] = '\0';
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table_name_[0] = '\0';
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mysql_table_name_[0] = '\0';
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mysql_path_[0] = '\0';
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}
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/**
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* "./${db}/${table}" ==> "${db}.mrn"
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* "./${db}/" ==> "${db}.mrn"
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* "/tmp/mysql-test/var/tmp/mysqld.1/#sql27c5_1_0" ==>
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* "/tmp/mysql-test/var/tmp/mysqld.1/#sql27c5_1_0.mrn"
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*/
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const char *PathMapper::db_path() {
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if (db_path_[0] != '\0') {
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return db_path_;
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}
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if (original_mysql_path_[0] == FN_CURLIB &&
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original_mysql_path_[1] == FN_LIBCHAR) {
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if (path_prefix_) {
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strcpy(db_path_, path_prefix_);
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}
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int i = 2, j = strlen(db_path_), len;
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len = strlen(original_mysql_path_);
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while (original_mysql_path_[i] != FN_LIBCHAR && i < len) {
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db_path_[j++] = original_mysql_path_[i++];
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}
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db_path_[j] = '\0';
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} else if (mysql_data_home_path_) {
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int len = strlen(original_mysql_path_);
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int mysql_data_home_len = strlen(mysql_data_home_path_);
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if (len > mysql_data_home_len &&
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!strncmp(original_mysql_path_,
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mysql_data_home_path_,
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mysql_data_home_len)) {
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int i = mysql_data_home_len, j;
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if (path_prefix_ && path_prefix_[0] == FN_LIBCHAR) {
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strcpy(db_path_, path_prefix_);
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j = strlen(db_path_);
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} else {
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memcpy(db_path_, mysql_data_home_path_, mysql_data_home_len);
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if (path_prefix_) {
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if (path_prefix_[0] == FN_CURLIB &&
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path_prefix_[1] == FN_LIBCHAR) {
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strcpy(&db_path_[mysql_data_home_len], &path_prefix_[2]);
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} else {
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strcpy(&db_path_[mysql_data_home_len], path_prefix_);
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}
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j = strlen(db_path_);
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} else {
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j = mysql_data_home_len;
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}
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}
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while (original_mysql_path_[i] != FN_LIBCHAR && i < len) {
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db_path_[j++] = original_mysql_path_[i++];
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}
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if (i == len) {
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memcpy(db_path_, original_mysql_path_, len);
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} else {
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db_path_[j] = '\0';
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}
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} else {
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strcpy(db_path_, original_mysql_path_);
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}
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} else {
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strcpy(db_path_, original_mysql_path_);
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}
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strcat(db_path_, MRN_DB_FILE_SUFFIX);
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return db_path_;
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}
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/**
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* "./${db}/${table}" ==> "${db}"
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* "./${db}/" ==> "${db}"
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* "/tmp/mysql-test/var/tmp/mysqld.1/#sql27c5_1_0" ==>
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* "/tmp/mysql-test/var/tmp/mysqld.1/#sql27c5_1_0"
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*/
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const char *PathMapper::db_name() {
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if (db_name_[0] != '\0') {
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return db_name_;
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}
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if (original_mysql_path_[0] == FN_CURLIB &&
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original_mysql_path_[1] == FN_LIBCHAR) {
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int i = 2, j = 0, len;
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len = strlen(original_mysql_path_);
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while (original_mysql_path_[i] != FN_LIBCHAR && i < len) {
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db_name_[j++] = original_mysql_path_[i++];
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}
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db_name_[j] = '\0';
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} else if (mysql_data_home_path_) {
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int len = strlen(original_mysql_path_);
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int mysql_data_home_len = strlen(mysql_data_home_path_);
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if (len > mysql_data_home_len &&
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!strncmp(original_mysql_path_,
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mysql_data_home_path_,
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mysql_data_home_len)) {
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int i = mysql_data_home_len, j = 0;
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while (original_mysql_path_[i] != FN_LIBCHAR && i < len) {
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db_name_[j++] = original_mysql_path_[i++];
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}
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if (i == len) {
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memcpy(db_name_, original_mysql_path_, len);
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} else {
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db_name_[j] = '\0';
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}
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} else {
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strcpy(db_name_, original_mysql_path_);
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}
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} else {
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strcpy(db_name_, original_mysql_path_);
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}
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return db_name_;
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}
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/**
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* "./${db}/${table}" ==> "${table}" (with encoding first '_')
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*/
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const char *PathMapper::table_name() {
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if (table_name_[0] != '\0') {
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return table_name_;
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}
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int len = strlen(original_mysql_path_);
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int i = len, j = 0;
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for (; original_mysql_path_[--i] != FN_LIBCHAR ;) {}
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if (original_mysql_path_[i + 1] == '_') {
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table_name_[j++] = '@';
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table_name_[j++] = '0';
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table_name_[j++] = '0';
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table_name_[j++] = '5';
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table_name_[j++] = 'f';
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i++;
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}
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for (; i < len ;) {
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table_name_[j++] = original_mysql_path_[++i];
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}
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table_name_[j] = '\0';
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return table_name_;
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}
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/**
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* "./${db}/${table}" ==> "${table}" (without encoding first '_')
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*/
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const char *PathMapper::mysql_table_name() {
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if (mysql_table_name_[0] != '\0') {
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return mysql_table_name_;
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}
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int len = strlen(original_mysql_path_);
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int i = len, j = 0;
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for (; original_mysql_path_[--i] != FN_LIBCHAR ;) {}
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for (; i < len ;) {
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if (len - i - 1 >= 3 &&
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strncmp(original_mysql_path_ + i + 1, "#P#", 3) == 0) {
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break;
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}
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mysql_table_name_[j++] = original_mysql_path_[++i];
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}
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mysql_table_name_[j] = '\0';
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return mysql_table_name_;
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}
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/**
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* "./${db}/${table}" ==> "./${db}/${table}"
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* "./${db}/${table}#P#xxx" ==> "./${db}/${table}"
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*/
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const char *PathMapper::mysql_path() {
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if (mysql_path_[0] != '\0') {
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return mysql_path_;
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}
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int i;
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int len = strlen(original_mysql_path_);
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for (i = 0; i < len; i++) {
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if (len - i >= 3 &&
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strncmp(original_mysql_path_ + i, "#P#", 3) == 0) {
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break;
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}
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mysql_path_[i] = original_mysql_path_[i];
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}
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mysql_path_[i] = '\0';
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return mysql_path_;
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}
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bool PathMapper::is_internal_table_name() {
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return mysql_table_name()[0] == '#';
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}
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}
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