313 lines
10 KiB
C++
313 lines
10 KiB
C++
/* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program 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
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#define LOG_COMPONENT_TAG "test_x_sessions_init"
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#include <fcntl.h>
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#include <mysql/plugin.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <mysql/components/my_service.h>
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#include <mysql/components/services/log_builtins.h>
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#include <mysqld_error.h>
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#include "my_dbug.h"
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#include "my_inttypes.h"
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#include "my_io.h"
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#include "my_sys.h" // my_write, my_malloc
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#include "template_utils.h"
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static const char *log_filename = "test_x_sessions_init";
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#define MAX_SESSIONS 128
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#define STRING_BUFFER_SIZE 512
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#define WRITE_STR(format) \
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snprintf(buffer, sizeof(buffer), "%s", format); \
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my_write(outfile, (uchar *)buffer, strlen(buffer), MYF(0))
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#define WRITE_VAL(format, value) \
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snprintf(buffer, sizeof(buffer), format, value); \
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my_write(outfile, (uchar *)buffer, strlen(buffer), MYF(0))
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static const char *sep =
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"========================================================================"
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"\n";
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#define WRITE_SEP() \
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my_write(outfile, pointer_cast<const uchar *>(sep), strlen(sep), MYF(0))
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/* SQL (system) variable to control number of sessions */
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/* Only effective at start od mysqld by setting it as option --loose-... */
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int nb_sessions;
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static MYSQL_SYSVAR_INT(nb_sessions, nb_sessions, PLUGIN_VAR_RQCMDARG,
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"number of sessions", NULL, NULL, 1, 1, 500, 0);
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static SYS_VAR *test_services_sysvars[] = {MYSQL_SYSVAR(nb_sessions), NULL};
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struct st_plugin_ctx {
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char message[1024];
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uint sql_errno;
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char err_msg[1024];
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char sqlstate[6];
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st_plugin_ctx() { reset(); }
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void reset() {
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memset(&message, 0, sizeof(message));
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sql_errno = 0;
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memset(&err_msg, 0, sizeof(err_msg));
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memset(&sqlstate, 0, sizeof(sqlstate));
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}
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};
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const struct st_command_service_cbs sql_cbs = {
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NULL, // sql_start_result_metadata,
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NULL, // sql_field_metadata,
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NULL, // sql_end_result_metadata,
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NULL, // sql_start_row,
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NULL, // sql_end_row,
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NULL, // sql_abort_row,
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NULL, // sql_get_client_capabilities,
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NULL, // sql_get_null,
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NULL, // sql_get_integer,
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NULL, // sql_get_longlong,
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NULL, // sql_get_decimal,
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NULL, // sql_get_double,
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NULL, // sql_get_date,
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NULL, // sql_get_time,
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NULL, // sql_get_datetime,
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NULL, // sql_get_string,
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NULL, // sql_handle_ok,
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NULL, // sql_handle_error,
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NULL // sql_shutdown,
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};
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static SERVICE_TYPE(registry) *reg_srv = nullptr;
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SERVICE_TYPE(log_builtins) *log_bi = nullptr;
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SERVICE_TYPE(log_builtins_string) *log_bs = nullptr;
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static File outfile;
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static void test_session(void *p) {
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char buffer[STRING_BUFFER_SIZE];
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DBUG_TRACE;
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MYSQL_SESSION sessions[MAX_SESSIONS];
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/* Open sessions: Must pass */
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for (int i = 0; i < nb_sessions; i++) {
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WRITE_VAL("srv_session_open %d\n", i);
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sessions[i] = srv_session_open(NULL, NULL);
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if (!sessions[i])
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LogPluginErrMsg(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_open_%d failed.", i);
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}
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unsigned int thread_count = srv_session_info_thread_count((const void *)p);
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WRITE_VAL("Number of threads of this plugin: %d\n", thread_count);
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thread_count = srv_session_info_thread_count(NULL);
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WRITE_VAL("Number of threads of all (NULL) plugins: %d\n", thread_count);
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/* close sessions: Must pass */
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for (int i = 0; i < nb_sessions; i++) {
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WRITE_VAL("srv_session_close %d\n", nb_sessions - 1 - i);
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bool session_ret = srv_session_close(sessions[nb_sessions - 1 - i]);
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if (session_ret)
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LogPluginErrMsg(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_close_%d failed.", nb_sessions - 1 - i);
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}
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}
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static void test_session_non_reverse(void *p MY_ATTRIBUTE((unused))) {
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char buffer[STRING_BUFFER_SIZE];
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DBUG_TRACE;
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/* Session declarations */
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MYSQL_SESSION sessions[MAX_SESSIONS];
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/* Open sessions: Must pass */
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for (int i = 0; i < nb_sessions; i++) {
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WRITE_VAL("srv_session_open %d\n", i);
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sessions[i] = srv_session_open(NULL, NULL);
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if (!sessions[i])
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LogPluginErrMsg(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_open_%d failed.", i);
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}
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int session_count = srv_session_info_session_count();
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WRITE_VAL("Number of open sessions: %d\n", session_count);
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/* close sessions: Must pass */
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for (int i = 0; i < nb_sessions; i++) {
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WRITE_VAL("srv_session_close %d\n", i);
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bool session_ret = srv_session_close(sessions[i]);
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if (session_ret)
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LogPluginErrMsg(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_close_%d failed.", i);
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}
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session_count = srv_session_info_session_count();
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WRITE_VAL("Number of open sessions: %d\n", session_count);
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}
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static void test_session_only_open(void *p MY_ATTRIBUTE((unused))) {
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char buffer[STRING_BUFFER_SIZE];
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DBUG_TRACE;
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MYSQL_SESSION sessions[MAX_SESSIONS];
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/* Disabled open without close as these 5 sessions stay open until server
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shutdow, That violates the rules of a valid regression test. */
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/* Open sessions: Must pass */
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// for (int i= 0; i < nb_sessions; i++)
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for (int i = 0; i < 0; i++) {
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WRITE_VAL("srv_session_open %d\n", i);
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sessions[i] = srv_session_open(NULL, NULL);
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if (!sessions[i])
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LogPluginErrMsg(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_open_%d failed.", i);
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}
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struct st_plugin_ctx *ctx = new st_plugin_ctx();
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struct st_plugin_ctx *pctx = (struct st_plugin_ctx *)ctx;
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COM_DATA cmd;
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pctx->reset();
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cmd.com_query.query = "SELECT * FROM test.t_int";
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cmd.com_query.length = strlen(cmd.com_query.query);
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command_service_run_command(NULL, COM_QUERY, &cmd,
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&my_charset_utf8_general_ci, &sql_cbs,
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CS_TEXT_REPRESENTATION, ctx);
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delete ctx;
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}
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struct test_thread_context {
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my_thread_handle thread;
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void *p;
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bool thread_finished;
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void (*test_function)(void *);
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};
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static void *test_sql_threaded_wrapper(void *param) {
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char buffer[STRING_BUFFER_SIZE];
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struct test_thread_context *context = (struct test_thread_context *)param;
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WRITE_SEP();
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WRITE_STR("init thread\n");
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if (srv_session_init_thread(context->p))
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LogPluginErr(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"srv_session_init_thread failed.");
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context->test_function(context->p);
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WRITE_STR("deinit thread\n");
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srv_session_deinit_thread();
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context->thread_finished = true;
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return NULL;
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}
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static void create_log_file(const char *log_name) {
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char filename[FN_REFLEN];
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fn_format(filename, log_name, "", ".log",
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MY_REPLACE_EXT | MY_UNPACK_FILENAME);
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unlink(filename);
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outfile = my_open(filename, O_CREAT | O_RDWR, MYF(0));
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}
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static void test_in_spawned_thread(void *p, void (*test_function)(void *)) {
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my_thread_attr_t attr; /* Thread attributes */
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my_thread_attr_init(&attr);
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(void)my_thread_attr_setdetachstate(&attr, MY_THREAD_CREATE_JOINABLE);
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struct test_thread_context context;
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context.p = p;
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context.thread_finished = false;
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context.test_function = test_function;
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/* now create the thread and call test_session within the thread. */
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if (my_thread_create(&(context.thread), &attr, test_sql_threaded_wrapper,
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&context) != 0)
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LogPluginErr(ERROR_LEVEL, ER_LOG_PRINTF_MSG,
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"Could not create test session thread");
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else
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my_thread_join(&context.thread, NULL);
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}
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static int test_session_service_plugin_init(void *p) {
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char buffer[STRING_BUFFER_SIZE];
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DBUG_TRACE;
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if (init_logging_service_for_plugin(®_srv, &log_bi, &log_bs)) return 1;
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LogPluginErr(INFORMATION_LEVEL, ER_LOG_PRINTF_MSG, "Installation.");
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create_log_file(log_filename);
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/* Test of service: sessions */
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WRITE_SEP();
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WRITE_STR("Test in a server thread\n");
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test_session(p);
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test_session_non_reverse(p);
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test_session_only_open(p);
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unsigned int thread_count = srv_session_info_thread_count((const void *)p);
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WRITE_VAL("Number of threads: %d\n", thread_count);
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WRITE_STR("Follows threaded run\n");
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test_in_spawned_thread(p, test_session);
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test_in_spawned_thread(p, test_session_non_reverse);
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test_in_spawned_thread(p, test_session_only_open);
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my_close(outfile, MYF(0));
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return 0;
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}
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static int test_session_service_plugin_deinit(void *p MY_ATTRIBUTE((unused))) {
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DBUG_TRACE;
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LogPluginErr(INFORMATION_LEVEL, ER_LOG_PRINTF_MSG, "Uninstallation.");
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deinit_logging_service_for_plugin(®_srv, &log_bi, &log_bs);
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return 0;
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}
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struct st_mysql_daemon test_session_service_plugin = {
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MYSQL_DAEMON_INTERFACE_VERSION};
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/*
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Plugin library descriptor
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*/
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mysql_declare_plugin(test_daemon){
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MYSQL_DAEMON_PLUGIN,
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&test_session_service_plugin,
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"test_x_sessions_init",
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"Horst Hunger, Andrey Hristov",
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"Test session service in init",
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PLUGIN_LICENSE_GPL,
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test_session_service_plugin_init, /* Plugin Init */
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NULL, /* Plugin Check uninstall */
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test_session_service_plugin_deinit, /* Plugin Deinit */
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0x0100, /* 1.0 */
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NULL, /* status variables */
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test_services_sysvars, /* system variables */
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NULL, /* config options */
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0, /* flags */
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} mysql_declare_plugin_end;
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