diff options
Diffstat (limited to 'storage/innobase/trx/trx0sys.c')
| -rw-r--r-- | storage/innobase/trx/trx0sys.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/storage/innobase/trx/trx0sys.c b/storage/innobase/trx/trx0sys.c index ef10119587d..79e5af1c677 100644 --- a/storage/innobase/trx/trx0sys.c +++ b/storage/innobase/trx/trx0sys.c @@ -40,6 +40,7 @@ Created 3/26/1996 Heikki Tuuri #include "trx0purge.h" #include "log0log.h" #include "os0file.h" +#include "read0read.h" /** The file format tag structure with id and name. */ struct file_format_struct { @@ -1533,3 +1534,80 @@ trx_sys_file_format_id_to_name( } #endif /* !UNIV_HOTBACKUP */ + +/********************************************************************* +Shutdown/Close the transaction system. */ +UNIV_INTERN +void +trx_sys_close(void) +/*===============*/ +{ + trx_rseg_t* rseg; + read_view_t* view; + + ut_ad(trx_sys != NULL); + + /* Check that all read views are closed except read view owned + by a purge. */ + + if (UT_LIST_GET_LEN(trx_sys->view_list) > 1) { + fprintf(stderr, + "InnoDB: Error: all read views were not closed" + " before shutdown:\n" + "InnoDB: %lu read views open \n", + UT_LIST_GET_LEN(trx_sys->view_list) - 1); + } + + sess_close(trx_dummy_sess); + trx_dummy_sess = NULL; + + trx_purge_sys_close(); + + mutex_enter(&kernel_mutex); + + /* Free the double write data structures. */ + ut_a(trx_doublewrite != NULL); + ut_free(trx_doublewrite->write_buf_unaligned); + trx_doublewrite->write_buf_unaligned = NULL; + + mem_free(trx_doublewrite->buf_block_arr); + trx_doublewrite->buf_block_arr = NULL; + + mutex_free(&trx_doublewrite->mutex); + mem_free(trx_doublewrite); + trx_doublewrite = NULL; + + /* There can't be any active transactions. */ + rseg = UT_LIST_GET_FIRST(trx_sys->rseg_list); + + while (rseg != NULL) { + trx_rseg_t* prev_rseg = rseg; + + rseg = UT_LIST_GET_NEXT(rseg_list, prev_rseg); + UT_LIST_REMOVE(rseg_list, trx_sys->rseg_list, prev_rseg); + + trx_rseg_mem_free(prev_rseg); + } + + view = UT_LIST_GET_FIRST(trx_sys->view_list); + + while (view != NULL) { + read_view_t* prev_view = view; + + view = UT_LIST_GET_NEXT(view_list, prev_view); + + /* Views are allocated from the trx_sys->global_read_view_heap. + So, we simply remove the element here. */ + UT_LIST_REMOVE(view_list, trx_sys->view_list, prev_view); + } + + ut_a(UT_LIST_GET_LEN(trx_sys->trx_list) == 0); + ut_a(UT_LIST_GET_LEN(trx_sys->rseg_list) == 0); + ut_a(UT_LIST_GET_LEN(trx_sys->view_list) == 0); + ut_a(UT_LIST_GET_LEN(trx_sys->mysql_trx_list) == 0); + + mem_free(trx_sys); + + trx_sys = NULL; + mutex_exit(&kernel_mutex); +} |