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Move thread initialization into Worker::run

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By moving the initialization into Worker::run, all threads, including the
main thread, are properly initialized. This was not noticed before as
qc_sqlite initialized the main thread in the process initialization
callback.
This commit is contained in:
Markus Mäkelä 2017-09-15 17:24:59 +03:00
parent 93dafc9031
commit d00c5b2838
4 changed files with 28 additions and 32 deletions
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19
query_classifier/qc_sqlite/qc_sqlite.cc
View File

@ -4413,14 +4413,12 @@ static int32_t qc_sqlite_process_init(void)
this_unit.initialized = true;
if (qc_sqlite_thread_init() == 0)
if (this_unit.log_level != QC_LOG_NOTHING)
{
if (this_unit.log_level != QC_LOG_NOTHING)
{
const char* message = NULL;
const char* message = NULL;
switch (this_unit.log_level)
{
switch (this_unit.log_level)
{
case QC_LOG_NON_PARSED:
message = "Statements that cannot be parsed completely are logged.";
break;
@ -4435,16 +4433,9 @@ static int32_t qc_sqlite_process_init(void)
default:
ss_dassert(!true);
}
MXS_NOTICE("%s", message);
}
}
else
{
this_unit.initialized = false;
sqlite3_shutdown();
MXS_NOTICE("%s", message);
}
}
else

5
query_classifier/test/compare.cc
View File

@ -176,8 +176,9 @@ QUERY_CLASSIFIER* get_classifier(const char* zName, qc_sql_mode_t sql_mode, cons
if (pClassifier)
{
if ((pClassifier->qc_setup(sql_mode, zArgs) != QC_RESULT_OK) ||
((pClassifier->qc_process_init() != QC_RESULT_OK)))
if (pClassifier->qc_setup(sql_mode, zArgs) != QC_RESULT_OK ||
pClassifier->qc_process_init() != QC_RESULT_OK ||
pClassifier->qc_thread_init() != QC_RESULT_OK)
{
cerr << "error: Could not setup or init classifier " << zName << "." << endl;
qc_unload(pClassifier);

30
server/core/worker.cc
View File

@ -857,11 +857,19 @@ void Worker::delete_zombies()
void Worker::run()
{
this_thread.current_worker_id = m_id;
poll_waitevents();
this_thread.current_worker_id = WORKER_ABSENT_ID;
if (modules_thread_init())
{
this_thread.current_worker_id = m_id;
poll_waitevents();
this_thread.current_worker_id = WORKER_ABSENT_ID;
MXS_NOTICE("Worker %d has shut down.", m_id);
MXS_NOTICE("Worker %d has shut down.", m_id);
modules_thread_finish();
}
else
{
MXS_ERROR("Could not perform thread initialization for all modules. Thread exits.");
}
}
bool Worker::start(size_t stack_size)
@ -1069,18 +1077,8 @@ void Worker::handle_message(MessageQueue& queue, const MessageQueue::Message& ms
//static
void Worker::thread_main(void* pArg)
{
if (modules_thread_init())
{
Worker* pWorker = static_cast<Worker*>(pArg);
pWorker->run();
modules_thread_finish();
}
else
{
MXS_ERROR("Could not perform thread initialization for all modules. Thread exits.");
}
Worker* pWorker = static_cast<Worker*>(pArg);
pWorker->run();
}
/**

6
server/modules/filter/dbfwfilter/dbfwfilter.cc
View File

@ -92,6 +92,9 @@ int dbfw_yyparse(void*);
#endif
MXS_END_DECLS
namespace
{
/** The rules and users for each thread */
struct DbfwThread
{
@ -107,6 +110,8 @@ struct DbfwThread
thread_local DbfwThread* this_thread = NULL;
}
bool parse_at_times(const char** tok, char** saveptr, Rule* ruledef);
bool parse_limit_queries(Dbfw* instance, Rule* ruledef, const char* rule, char** saveptr);
static void rule_free_all(Rule* rule);
@ -450,6 +455,7 @@ bool dbfw_show_rules_json(const MODULECMD_ARG *argv, json_t** output)
static int dbfw_thr_init()
{
ss_dassert(this_thread == NULL);
int rval = 0;
if ((this_thread = new (std::nothrow) DbfwThread) == NULL)