diff options
Diffstat (limited to 'sql/sp_head.h')
| -rw-r--r-- | sql/sp_head.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sql/sp_head.h b/sql/sp_head.h index 9addec706e7..6334bca0fc6 100644 --- a/sql/sp_head.h +++ b/sql/sp_head.h @@ -143,6 +143,32 @@ public: LEX_STRING m_definer_host; longlong m_created; longlong m_modified; + /* Recursion level of the current SP instance. The levels are numbered from 0 */ + ulong m_recursion_level; + /* + A list of diferent recursion level instances for the same procedure. + For every recursion level we have a sp_head instance. This instances + connected in the list. The list ordered by increasing recursion level + (m_recursion_level). + */ + sp_head *m_next_cached_sp; + /* + Pointer to the first element of the above list + */ + sp_head *m_first_instance; + /* + Pointer to the first free (non-INVOKED) routine in the list of + cached instances for this SP. This pointer is set only for the first + SP in the list of instences (see above m_first_cached_sp pointer). + The pointer equal to 0 if we have no free instances. + For non-first instance value of this pointer meanless (point to itself); + */ + sp_head *m_first_free_instance; + /* + Pointer to the last element in the list of instances of the SP. + For non-first instance value of this pointer meanless (point to itself); + */ + sp_head *m_last_cached_sp; /* Set containing names of stored routines used by this routine. Note that unlike elements of similar set for statement elements of this @@ -266,6 +292,8 @@ public: void optimize(); void opt_mark(uint ip); + void recursion_level_error(); + inline sp_instr * get_instr(uint i) { |