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Reuse MySQL connections within requests

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root
2026-07-13 00:08:07 +00:00
parent 0ff42f357f
commit b1dfe6c807
5 changed files with 73 additions and 21 deletions
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src/lib/mysql-connector.h
+14 -11
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@@ -21,6 +21,11 @@ struct MySQL {
u64 insert_id = 0;
String statement_info = ""; //
bool request_cleanup_delete = false;
bool request_pooled = false;
u32 request_leases = 0;
String request_host;
String request_username;
String request_password;
std::vector<MySQLFieldInfo> field_info;
@@ -33,26 +38,24 @@ struct MySQL {
DValue query(String q, StringMap params);
DValue get_pending_result();
// Unregisters from request connection tracking, so stack-allocated instances
// cannot leave dangling pointers behind for request cleanup. Heap handles
// returned by mysql_connect() are also request-owned and auto-closed at the
// end of the request if user code does not call mysql_disconnect() first.
// Unregisters non-pooled instances from request tracking. mysql_connect()
// handles remain request-owned until cleanup after their leases are released.
~MySQL() { disconnect(); }
};
inline MySQL* mysql_connect(String host = "localhost", String username = "root", String password = "")
{
MySQL* m = new MySQL();
m->request_cleanup_delete = true;
m->connect(host, username, password);
return(m);
}
MySQL* mysql_connect(String host = "localhost", String username = "root", String password = "");
inline void mysql_disconnect(MySQL* m)
{
if(!m)
return;
if(m->request_pooled)
{
if(m->request_leases > 0)
m->request_leases--;
return;
}
m->disconnect();
delete m;
}