void task::enqueue(task_worker_pool* pool)
{
this->add_ref(); // released in exec_internal (even when cancelled)
if (spec().type == TASK_TYPE_COMPUTE)
{
spec().on_task_enqueue.execute(task::get_current_task(), this);
}
// for delayed tasks, refering to timer service
if (_delay_milliseconds != 0)
{
pool->add_timer(this);
return;
}
// fast execution
if (_is_null)
{
dassert (_node == task::get_current_node(), "");
exec_internal();
}
else if (_spec->fast_execution_in_network_thread)
{
if (_node != task::get_current_node())
{
tools::node_scoper ns(_node);
exec_internal();
}
else
{
exec_internal();
}
}
else if (_spec->allow_inline && !task::get_current_worker2() /*in io-thread*/ )
{
dassert(_node == task::get_current_node(), "");
exec_internal();
}
// normal path
else
{
dassert(pool != nullptr, "pool %s not ready, and there are usually two cases: "
"(1). thread pool not designatd in '[%s] pools'; "
"(2). the caller is executed in io threads "
"which is forbidden unless you explicitly set [task.%s].fast_execution_in_network_thread = true",
dsn_threadpool_code_to_string(_spec->pool_code),
_node->spec().config_section.c_str(),
_spec->name.c_str()
);
pool->enqueue(this);
}
}
void task::enqueue(task_worker_pool *pool)
{
this->add_ref(); // released in exec_internal (even when cancelled)
dassert(pool != nullptr,
"pool %s not ready, and there are usually two cases: "
"(1). thread pool not designatd in '[%s] pools'; "
"(2). the caller is executed in io threads "
"which is forbidden unless you explicitly set [task.%s].allow_inline = true",
_spec->pool_code.to_string(),
_node->spec().config_section.c_str(),
_spec->name.c_str());
if (spec().type == TASK_TYPE_COMPUTE) {
spec().on_task_enqueue.execute(get_current_task(), this);
}
// for delayed tasks, refering to timer service
if (_delay_milliseconds != 0) {
pool->add_timer(this);
return;
}
// fast execution
if (_is_null) {
dassert(_node == task::get_current_node(), "");
exec_internal();
return;
}
if (_spec->allow_inline) {
// inlined
// warning - this may lead to deadlocks, e.g., allow_inlined
// task tries to get a non-recursive lock that is already hold
// by the caller task
if (_node != get_current_node()) {
tools::node_scoper ns(_node);
exec_internal();
return;
} else {
exec_internal();
return;
}
}
// normal path
pool->enqueue(this);
}
void task::enqueue(task_worker_pool* pool)
{
if (spec().type == TASK_TYPE_COMPUTE)
{
spec().on_task_enqueue.execute(task::get_current_task(), this);
}
// fast execution
if (_delay_milliseconds == 0
&& (_spec->allow_inline || _spec->fast_execution_in_network_thread || _is_null)
)
{
exec_internal();
}
// normal path
else
{
dassert(pool != nullptr, "pool not exist, "
"must be the case where the caller is executed in io threads "
"which is forbidden unless you explicitly set [task.%s].fast_execution_in_network_thread = true",
_spec->name
);
task_ptr this_(this);
pool->enqueue(this_);
}
}
void sqlite3::execMany(call_context & x) {
local_root_scope scope;
if (x.arg.size() != 1) {
throw exception ("SQLite3.execMany() requires 1 argument");
}
if ( x.arg[0].is_object() && x.arg[0].get_object().is_array() ) {
x.result = exec_internal( x.arg[0].to_object() );
}
else {
throw exception("SQLite3.execMany() expected an array of"
" objects as argument");
}
}
void sqlite3::exec(call_context & x) {
local_root_scope scope;
if (x.arg.size() != 1 && x.arg.size() != 2) {
throw exception ("SQLite3.exec() requires at least 1 argument");
}
if ( x.arg[0].is_string() ) {
object data = create<object>();
data.set_property("sql", x.arg[0].get_string() );
if ( x.arg.size() > 1 ) {
data.set_property( "bind", x.arg[1].to_object() );
}
array arr(create<array>(list_of(data)));
x.result = exec_internal( arr );
}
else {
throw exception("The first parameter of SQLite3.exec() requires to be"
" a string containing an SQL statement");
}
}
int exec(const std::string &subject, int startoffset = 0, int options = 0) const {
return exec_internal(subject.data(), subject.length(),
startoffset, options);
}
// result: error code or zero-based offset of pattern match
int exec(const char *subject, int startoffset = 0, int options = 0) const {
return exec_internal(subject, subject != 0 ? strlen(subject) : 0,
startoffset, options);
}
// matching
// result: same as pcre_exec(...)
int exec(const char *subject, int *ovector, size_t ovecsize,
int startoffset = 0, int options = 0) const {
return exec_internal(subject, subject != 0 ? strlen(subject) : 0,
ovector, ovecsize, startoffset, options);
}
AbstractQoreNode* Datasource::execRaw(const QoreString* query_str, ExceptionSink* xsink) {
return exec_internal(false, query_str, 0, xsink);
}
// deprecated: remove due to extraneous ignored "args" argument
AbstractQoreNode* Datasource::execRaw(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink) {
assert(!args);
return exec_internal(false, query_str, 0, xsink);
}
AbstractQoreNode* Datasource::exec(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink) {
return exec_internal(true, query_str, args, xsink);
}