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Convert mysql_mon.c to mysql_mon.cc

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This commit is contained in:
Johan Wikman 2017-09-28 15:10:15 +03:00
parent 14d8b6a0df
commit 9c60b68476
2 changed files with 40 additions and 23 deletions
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2
server/modules/monitor/mysqlmon/CMakeLists.txt
View File

@ -1,4 +1,4 @@
add_library(mysqlmon SHARED mysql_mon.c)
add_library(mysqlmon SHARED mysql_mon.cc)
target_link_libraries(mysqlmon maxscale-common)
add_dependencies(mysqlmon pcre2)
set_target_properties(mysqlmon PROPERTIES VERSION "1.4.0")

61
server/modules/monitor/mysqlmon/mysql_mon.c → server/modules/monitor/mysqlmon/mysql_mon.cc
View File

@ -68,6 +68,9 @@ static const char* hb_table_name = "maxscale_schema.replication_heartbeat";
*
* @return The module object
*/
extern "C"
{
MXS_MODULE* MXS_CREATE_MODULE()
{
MXS_NOTICE("Initialise the MySQL Monitor module.");
@ -123,6 +126,8 @@ MXS_MODULE* MXS_CREATE_MODULE()
return &info;
}
}
/**
* Monitor specific information about a server
*/
@ -141,14 +146,11 @@ typedef struct mysql_server_info
bool binlog_relay; /** Server is a Binlog Relay */
} MYSQL_SERVER_INFO;
/** Other values are implicitly zero initialized */
#define MYSQL_SERVER_INFO_INIT {.binlog_name = ""}
void* info_copy_func(const void *val)
{
ss_dassert(val);
MYSQL_SERVER_INFO *old_val = (MYSQL_SERVER_INFO*)val;
MYSQL_SERVER_INFO *new_val = MXS_MALLOC(sizeof(MYSQL_SERVER_INFO));
MYSQL_SERVER_INFO *new_val = static_cast<MYSQL_SERVER_INFO*>(MXS_MALLOC(sizeof(MYSQL_SERVER_INFO)));
char *binlog_name = MXS_STRDUP(old_val->binlog_name);
if (new_val && binlog_name)
@ -186,9 +188,11 @@ void info_free_func(void *val)
*/
bool init_server_info(MYSQL_MONITOR *handle, MXS_MONITOR_SERVERS *database)
{
MYSQL_SERVER_INFO info = MYSQL_SERVER_INFO_INIT;
bool rval = true;
MYSQL_SERVER_INFO info = {};
info.binlog_name = const_cast<char*>("");
while (database)
{
/** Delete any existing structures and replace them with empty ones */
@ -326,7 +330,8 @@ static void diagnostics(DCB *dcb, const MXS_MONITOR *mon)
for (MXS_MONITOR_SERVERS *db = mon->databases; db; db = db->next)
{
MYSQL_SERVER_INFO *serv_info = hashtable_fetch(handle->server_info, db->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info, db->server->unique_name));
dcb_printf(dcb, "Server: %s\n", db->server->unique_name);
dcb_printf(dcb, "Server ID: %d\n", serv_info->server_id);
dcb_printf(dcb, "Read only: %s\n", serv_info->read_only ? "ON" : "OFF");
@ -378,7 +383,9 @@ static json_t* diagnostics_json(const MXS_MONITOR *mon)
for (MXS_MONITOR_SERVERS *db = mon->databases; db; db = db->next)
{
json_t* srv = json_object();
MYSQL_SERVER_INFO *serv_info = hashtable_fetch(handle->server_info, db->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
db->server->unique_name));
json_object_set_new(srv, "name", json_string(db->server->unique_name));
json_object_set_new(srv, "server_id", json_integer(serv_info->server_id));
json_object_set_new(srv, "master_id", json_integer(serv_info->master_id));
@ -415,7 +422,8 @@ enum mysql_server_version
static inline void monitor_mysql_db(MXS_MONITOR_SERVERS* database, MYSQL_SERVER_INFO *serv_info,
enum mysql_server_version server_version)
{
int columns, i_io_thread, i_sql_thread, i_binlog_pos, i_master_id, i_binlog_name;
unsigned int columns;
int i_io_thread, i_sql_thread, i_binlog_pos, i_master_id, i_binlog_name;
const char *query;
if (server_version == MYSQL_SERVER_VERSION_100)
@ -452,7 +460,7 @@ static inline void monitor_mysql_db(MXS_MONITOR_SERVERS* database, MYSQL_SERVER_
{
mysql_free_result(result);
MXS_ERROR("\"%s\" returned less than the expected amount of columns. "
"Expected %d columns.", query, columns);
"Expected %u columns.", query, columns);
return;
}
@ -551,7 +559,7 @@ static MXS_MONITOR_SERVERS *build_mysql51_replication_tree(MXS_MONITOR *mon)
MXS_MONITOR_SERVERS* database = mon->databases;
MXS_MONITOR_SERVERS *ptr, *rval = NULL;
int i;
MYSQL_MONITOR *handle = mon->handle;
MYSQL_MONITOR *handle = static_cast<MYSQL_MONITOR*>(mon->handle);
while (database)
{
@ -663,7 +671,7 @@ static MXS_MONITOR_SERVERS *build_mysql51_replication_tree(MXS_MONITOR *mon)
static void
monitorDatabase(MXS_MONITOR *mon, MXS_MONITOR_SERVERS *database)
{
MYSQL_MONITOR* handle = mon->handle;
MYSQL_MONITOR* handle = static_cast<MYSQL_MONITOR*>(mon->handle);
MYSQL_ROW row;
MYSQL_RES *result;
unsigned long int server_version = 0;
@ -735,7 +743,8 @@ monitorDatabase(MXS_MONITOR *mon, MXS_MONITOR_SERVERS *database)
mxs_mysql_set_server_version(database->con, database->server);
server_string = database->server->version_string;
MYSQL_SERVER_INFO *serv_info = hashtable_fetch(handle->server_info, database->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info, database->server->unique_name));
ss_dassert(serv_info);
/* Check whether current server is MaxScale Binlog Server */
@ -942,7 +951,8 @@ void find_graph_cycles(MYSQL_MONITOR *handle, MXS_MONITOR_SERVERS *database, int
for (MXS_MONITOR_SERVERS *db = database; db; db = db->next)
{
graph[nodes].info = hashtable_fetch(handle->server_info, db->server->unique_name);
graph[nodes].info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info, db->server->unique_name));
graph[nodes].db = db;
ss_dassert(graph[nodes].info);
graph[nodes].index = graph[nodes].lowest_index = 0;
@ -1050,7 +1060,9 @@ bool failover_required(MYSQL_MONITOR *handle, MXS_MONITOR_SERVERS *db)
if (SERVER_IS_RUNNING(db->server))
{
candidates++;
MYSQL_SERVER_INFO *server_info = hashtable_fetch(handle->server_info, db->server->unique_name);
MYSQL_SERVER_INFO *server_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
db->server->unique_name));
if (server_info->read_only || server_info->slave_configured || candidates > 1)
{
@ -1277,7 +1289,9 @@ monitorMain(void *arg)
ptr = mon->databases;
while (ptr)
{
MYSQL_SERVER_INFO *serv_info = hashtable_fetch(handle->server_info, ptr->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
ptr->server->unique_name));
ss_dassert(serv_info);
if (ptr->server->node_id > 0 && ptr->server->master_id > 0 &&
@ -1306,7 +1320,9 @@ monitorMain(void *arg)
{
if (!SERVER_IN_MAINT(ptr->server))
{
MYSQL_SERVER_INFO *serv_info = hashtable_fetch(handle->server_info, ptr->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
ptr->server->unique_name));
ss_dassert(serv_info);
/** If "detect_stale_master" option is On, let's use the previous master.
@ -1341,7 +1357,7 @@ monitorMain(void *arg)
if (handle->detectStaleSlave)
{
int bits = SERVER_SLAVE | SERVER_RUNNING;
unsigned bits = SERVER_SLAVE | SERVER_RUNNING;
if ((ptr->mon_prev_status & bits) == bits &&
root_master && SERVER_IS_MASTER(root_master->server))
@ -1445,9 +1461,9 @@ monitorMain(void *arg)
while (ptr)
{
MYSQL_SERVER_INFO *serv_info;
serv_info = hashtable_fetch(handle->server_info,
ptr->server->unique_name);
MYSQL_SERVER_INFO *serv_info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
ptr->server->unique_name));
ss_dassert(serv_info);
if ((!SERVER_IN_MAINT(ptr->server)) && SERVER_IS_RUNNING(ptr->server))
@ -1864,8 +1880,9 @@ static MXS_MONITOR_SERVERS *get_replication_tree(MXS_MONITOR *mon, int num_serve
monitor_clear_pending_status(handle->master, SERVER_MASTER);
}
MYSQL_SERVER_INFO* info = hashtable_fetch(handle->server_info,
master->server->unique_name);
MYSQL_SERVER_INFO* info =
static_cast<MYSQL_SERVER_INFO*>(hashtable_fetch(handle->server_info,
master->server->unique_name));
ss_dassert(info);
if (SERVER_IS_RUNNING(master->server))