Initial commit of Ccnet server.

net/common/db-wrapper/db-wrapper.h

@@ -0,0 +1,129 @@
+#ifndef DB_WRAPPER_H
+#define DB_WARPPER_H
+
+#include <glib.h>
+
+#define SEAF_DB_ERROR_DOMAIN g_quark_from_string("SEAF_DB")
+#define SEAF_DB_ERROR_CODE 0
+
+/* DB Connection Pool. */
+
+struct DBConnPool {
+    int max_connections;
+};
+typedef struct DBConnPool DBConnPool;
+
+DBConnPool *
+db_conn_pool_new_mysql (const char *host,
+                        const char *user,
+                        const char *password,
+                        unsigned int port,
+                        const char *db_name,
+                        const char *unix_socket,
+                        gboolean use_ssl,
+                        const char *charset,
+                        int max_connections);
+
+DBConnPool *
+db_conn_pool_new_pgsql (const char *host,
+                        const char *user,
+                        const char *password,
+                        const char *db_name,
+                        const char *unix_socket);
+
+DBConnPool *
+db_conn_pool_new_sqlite (const char *db_path, int max_connections);
+
+void
+db_conn_pool_free (DBConnPool *pool);
+
+/* DB Connections. */
+
+struct ResultSet;
+typedef struct ResultSet ResultSet;
+
+struct DBStmt;
+typedef struct DBStmt DBStmt;
+
+struct DBConnection {
+    DBConnPool *pool;
+    ResultSet *result_set;
+    DBStmt *stmt;
+};
+typedef struct DBConnection DBConnection;
+
+DBConnection *
+db_conn_pool_get_connection (DBConnPool *pool, GError **error);
+
+void
+db_connection_close (DBConnection *conn);
+
+gboolean
+db_connection_execute (DBConnection *conn, const char *sql, GError **error);
+
+/* Result Sets. */
+
+struct ResultSet {
+    /* Empty */
+};
+
+ResultSet *
+db_connection_execute_query (DBConnection *conn, const char *sql, GError **error);
+
+gboolean
+result_set_next (ResultSet *r, GError **error);
+
+const char *
+result_set_get_string (ResultSet *r, int idx, GError **error);
+
+int
+result_set_get_int (ResultSet *r, int idx, GError **error);
+
+gint64
+result_set_get_int64 (ResultSet *r, int idx, GError **error);
+
+int
+result_set_get_column_count (ResultSet *r);
+
+void
+result_set_free (ResultSet *r);
+
+/* Prepared Statements. */
+
+struct DBStmt {
+    ResultSet *result_set;
+};
+
+DBStmt *
+db_connection_prepare_statement (DBConnection *conn, const char *sql, GError **error);
+
+gboolean
+db_stmt_set_int (DBStmt *stmt, int idx, int x, GError **error);
+
+gboolean
+db_stmt_set_int64 (DBStmt *stmt, int idx, gint64 x, GError **error);
+
+gboolean
+db_stmt_set_string (DBStmt *stmt, int idx, const char *s, GError **error);
+
+gboolean
+db_stmt_execute (DBStmt *stmt, GError **error);
+
+ResultSet *
+db_stmt_execute_query (DBStmt *stmt, GError **error);
+
+void
+db_stmt_free (DBStmt *stmt);
+
+/* Transactions. */
+
+gboolean
+db_connection_begin_transaction (DBConnection *conn, GError **error);
+
+gboolean
+db_connection_commit (DBConnection *conn, GError **error);
+
+gboolean
+db_connection_rollback (DBConnection *conn, GError **error);
+
+#endif