diff options
Diffstat (limited to 'sql/sp_head.h')
| -rw-r--r-- | sql/sp_head.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/sql/sp_head.h b/sql/sp_head.h index 8ae7834eb2a..963d9da07cf 100644 --- a/sql/sp_head.h +++ b/sql/sp_head.h @@ -326,10 +326,22 @@ public: virtual ~sp_instr() { free_items(); } - // Execute this instrution. '*nextp' will be set to the index of the next - // instruction to execute. (For most instruction this will be the - // instruction following this one.) - // Returns 0 on success, non-zero if some error occured. + + /* + Execute this instruction + + SYNOPSIS + execute() + thd Thread handle + nextp OUT index of the next instruction to execute. (For most + instructions this will be the instruction following this + one). + + RETURN + 0 on success, + other if some error occured + */ + virtual int execute(THD *thd, uint *nextp) = 0; /* @@ -339,7 +351,7 @@ public: Should be implemented for instructions using expressions or whole statements (thus having to have own LEX). Used in concert with - sp_lex_keeper class and its descendants. + sp_lex_keeper class and its descendants (there are none currently). */ virtual int exec_core(THD *thd, uint *nextp); @@ -808,6 +820,7 @@ private: }; // class sp_instr_hreturn : public sp_instr +/* This is DECLARE CURSOR */ class sp_instr_cpush : public sp_instr { sp_instr_cpush(const sp_instr_cpush &); /* Prevent use of these */ |