/**
* Start the instance of the monitor, returning a handle on the monitor.
*
* This function creates a thread to execute the actual monitoring.
*
* @return A handle to use when interacting with the monitor
*/
static void *
startMonitor(void *arg, void* opt)
{
MONITOR* mon = arg;
GALERA_MONITOR *handle = mon->handle;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*) opt;
bool have_events = false, script_error = false;
if (handle != NULL)
{
handle->shutdown = 0;
}
else
{
if ((handle = (GALERA_MONITOR *) malloc(sizeof(GALERA_MONITOR))) == NULL)
{
return NULL;
}
handle->shutdown = 0;
handle->id = MONITOR_DEFAULT_ID;
handle->disableMasterFailback = 0;
handle->availableWhenDonor = 0;
handle->disableMasterRoleSetting = 0;
handle->master = NULL;
handle->script = NULL;
handle->use_priority = false;
memset(handle->events, false, sizeof(handle->events));
spinlock_init(&handle->lock);
}
while (params)
{
if (!strcmp(params->name, "disable_master_failback"))
{
handle->disableMasterFailback = config_truth_value(params->value);
}
else if (!strcmp(params->name, "available_when_donor"))
{
handle->availableWhenDonor = config_truth_value(params->value);
}
else if (!strcmp(params->name, "disable_master_role_setting"))
{
handle->disableMasterRoleSetting = config_truth_value(params->value);
}
else if (!strcmp(params->name, "use_priority"))
{
handle->use_priority = config_truth_value(params->value);
}
else if (!strcmp(params->name, "script"))
{
if (externcmd_can_execute(params->value))
{
free(handle->script);
handle->script = strdup(params->value);
}
else
{
script_error = true;
}
}
else if (!strcmp(params->name, "events"))
{
if (mon_parse_event_string((bool*) & handle->events,
sizeof(handle->events), params->value) != 0)
{
script_error = true;
}
else
{
have_events = true;
}
}
params = params->next;
}
if (script_error)
{
MXS_ERROR("Errors were found in the script configuration parameters "
"for the monitor '%s'. The script will not be used.", mon->name);
free(handle->script);
handle->script = NULL;
}
/** If no specific events are given, enable them all */
if (!have_events)
{
memset(handle->events, true, sizeof(handle->events));
}
handle->tid = (THREAD) thread_start(monitorMain, mon);
return handle;
}
/**
* Create an instance of the filter for a particular service
* within MaxScale.
*
* @param options The options for this filter
*
* @return The instance data for this new instance
*/
static FILTER *
createInstance(char **options, FILTER_PARAMETER **params)
{
MQ_INSTANCE *my_instance;
int paramcount = 0, parammax = 64, i = 0, x = 0, arrsize = 0;
FILTER_PARAMETER** paramlist;
char** arr;
char taskname[512];
if ((my_instance = calloc(1, sizeof(MQ_INSTANCE))))
{
spinlock_init(&my_instance->rconn_lock);
spinlock_init(&my_instance->msg_lock);
uid_gen = 0;
paramlist = malloc(sizeof(FILTER_PARAMETER*)*64);
if((my_instance->conn = amqp_new_connection()) == NULL){
return NULL;
}
my_instance->channel = 1;
my_instance->last_rconn = time(NULL);
my_instance->conn_stat = AMQP_STATUS_OK;
my_instance->rconn_intv = 1;
my_instance->port = 5672;
my_instance->trgtype = TRG_ALL;
my_instance->log_all = false;
my_instance->strict_logging = true;
for(i = 0;params[i];i++){
if(!strcmp(params[i]->name,"hostname")){
my_instance->hostname = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"username")){
my_instance->username = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"password")){
my_instance->password = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"vhost")){
my_instance->vhost = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"port")){
my_instance->port = atoi(params[i]->value);
}else if(!strcmp(params[i]->name,"exchange")){
my_instance->exchange = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"key")){
my_instance->key = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"queue")){
my_instance->queue = strdup(params[i]->value);
}
else if(!strcmp(params[i]->name,"ssl_client_certificate")){
my_instance->ssl_client_cert = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"ssl_client_key")){
my_instance->ssl_client_key = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"ssl_CA_cert")){
my_instance->ssl_CA_cert = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"exchange_type")){
my_instance->exchange_type = strdup(params[i]->value);
}else if(!strcmp(params[i]->name,"logging_trigger")){
arr = parse_optstr(params[i]->value,",",&arrsize);
for(x = 0;x<arrsize;x++){
if(!strcmp(arr[x],"source")){
my_instance->trgtype |= TRG_SOURCE;
}else if(!strcmp(arr[x],"schema")){
my_instance->trgtype |= TRG_SCHEMA;
}else if(!strcmp(arr[x],"object")){
my_instance->trgtype |= TRG_OBJECT;
}else if(!strcmp(arr[x],"all")){
my_instance->trgtype = TRG_ALL;
}else{
skygw_log_write(LOGFILE_ERROR,"Error: Unknown option for 'logging_trigger':%s.",arr[x]);
}
}
if(arrsize > 0){
free(arr);
}
arrsize = 0;
}else if(strstr(params[i]->name,"logging_")){
if(paramcount < parammax){
paramlist[paramcount] = malloc(sizeof(FILTER_PARAMETER));
paramlist[paramcount]->name = strdup(params[i]->name);
paramlist[paramcount]->value = strdup(params[i]->value);
paramcount++;
}
}
}
if(my_instance->trgtype & TRG_SOURCE){
my_instance->src_trg = (SRC_TRIG*)malloc(sizeof(SRC_TRIG));
my_instance->src_trg->user = NULL;
my_instance->src_trg->host = NULL;
my_instance->src_trg->usize = 0;
my_instance->src_trg->hsize = 0;
}
if(my_instance->trgtype & TRG_SCHEMA){
my_instance->shm_trg = (SHM_TRIG*)malloc(sizeof(SHM_TRIG));
my_instance->shm_trg->objects = NULL;
my_instance->shm_trg->size = 0;
}
if(my_instance->trgtype & TRG_OBJECT){
my_instance->obj_trg = (OBJ_TRIG*)malloc(sizeof(OBJ_TRIG));
my_instance->obj_trg->objects = NULL;
my_instance->obj_trg->size = 0;
}
for(i = 0;i<paramcount;i++){
if(!strcmp(paramlist[i]->name,"logging_source_user")){
if(my_instance->src_trg){
my_instance->src_trg->user = parse_optstr(paramlist[i]->value,",",&arrsize);
my_instance->src_trg->usize = arrsize;
arrsize = 0;
}
}else if(!strcmp(paramlist[i]->name,"logging_source_host")){
if(my_instance->src_trg){
my_instance->src_trg->host = parse_optstr(paramlist[i]->value,",",&arrsize);
my_instance->src_trg->hsize = arrsize;
arrsize = 0;
}
}else if(!strcmp(paramlist[i]->name,"logging_schema")){
if(my_instance->shm_trg){
my_instance->shm_trg->objects = parse_optstr(paramlist[i]->value,",",&arrsize);
my_instance->shm_trg->size = arrsize;
arrsize = 0;
}
}else if(!strcmp(paramlist[i]->name,"logging_object")){
if(my_instance->obj_trg){
my_instance->obj_trg->objects = parse_optstr(paramlist[i]->value,",",&arrsize);
my_instance->obj_trg->size = arrsize;
arrsize = 0;
}
}else if(!strcmp(paramlist[i]->name,"logging_log_all")){
if(config_truth_value(paramlist[i]->value)){
my_instance->log_all = true;
}
}else if(!strcmp(paramlist[i]->name,"logging_strict")){
if(!config_truth_value(paramlist[i]->value)){
my_instance->strict_logging = false;
}
}
free(paramlist[i]->name);
free(paramlist[i]->value);
free(paramlist[i]);
}
free(paramlist);
if(my_instance->hostname == NULL){
my_instance->hostname = strdup("localhost");
}
if(my_instance->username == NULL){
my_instance->username = strdup("guest");
}
if(my_instance->password == NULL){
my_instance->password = strdup("guest");
}
if(my_instance->vhost == NULL){
my_instance->vhost = strdup("/");
}
if(my_instance->exchange == NULL){
my_instance->exchange = strdup("default_exchange");
}
if(my_instance->key == NULL){
my_instance->key = strdup("key");
}
if(my_instance->exchange_type == NULL){
my_instance->exchange_type = strdup("direct");
}
if(my_instance->ssl_client_cert != NULL &&
my_instance->ssl_client_key != NULL &&
my_instance->ssl_CA_cert != NULL){
my_instance->use_ssl = true;
}else{
my_instance->use_ssl = false;
}
if(my_instance->use_ssl){
amqp_set_initialize_ssl_library(0);/**Assume the underlying SSL library is already initialized*/
}
/**Connect to the server*/
init_conn(my_instance);
snprintf(taskname,511,"mqtask%d",atomic_add(&hktask_id,1));
hktask_add(taskname,sendMessage,(void*)my_instance,5);
}
return (FILTER *)my_instance;
}
/**
* Start the instance of the monitor, returning a handle on the monitor.
*
* This function creates a thread to execute the actual monitoring.
*
* @param arg The current handle - NULL if first start
* @return A handle to use when interacting with the monitor
*/
static void *
startMonitor(void *arg,void* opt)
{
MONITOR* mon = (MONITOR*)arg;
MM_MONITOR *handle = mon->handle;
CONFIG_PARAMETER* params = (CONFIG_PARAMETER*)opt;
bool have_events = false,script_error = false;
if (handle)
{
handle->shutdown = 0;
}
else
{
if ((handle = (MM_MONITOR *)malloc(sizeof(MM_MONITOR))) == NULL)
return NULL;
handle->shutdown = 0;
handle->id = MONITOR_DEFAULT_ID;
handle->master = NULL;
handle->script = NULL;
memset(handle->events,false,sizeof(handle->events));
spinlock_init(&handle->lock);
}
while(params)
{
if(!strcmp(params->name,"detect_stale_master"))
{
handle->detectStaleMaster = config_truth_value(params->value);
}
else if(!strcmp(params->name,"script"))
{
if(handle->script)
{
free(handle->script);
}
if(access(params->value,X_OK) == 0)
{
handle->script = strdup(params->value);
}
else
{
script_error = true;
if(access(params->value,F_OK) == 0)
{
skygw_log_write(LE,
"Error: The file cannot be executed: %s",
params->value);
}
else
{
skygw_log_write(LE,
"Error: The file cannot be found: %s",
params->value);
}
handle->script = NULL;
}
}
else if(!strcmp(params->name,"events"))
{
if(mon_parse_event_string((bool*)&handle->events,sizeof(handle->events),params->value) != 0)
script_error = true;
else
have_events = true;
}
params = params->next;
}
if(script_error)
{
skygw_log_write(LE,"Error: Errors were found in the script configuration parameters "
"for the monitor '%s'. The script will not be used.",mon->name);
free(handle->script);
handle->script = NULL;
}
/** If no specific events are given, enable them all */
if(!have_events)
{
memset(handle->events,true,sizeof(handle->events));
}
handle->tid = (THREAD)thread_start(monitorMain, mon);
return handle;
}