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g10: Support nested transactions on the TOFU DB.

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* g10/gpg.h (struct server_control_s): New field in_transaction.
* g10/tofu.c (struct tofu_dbs_s): Remove fields savepoint_inner and
savepoint_inner_commit.
(begin_transaction): Increment CTRL->TOFU.IN_TRANSACTION.  Name the
savepoint according to the nesting level.
(end_transaction): Name the savepoint according to the nesting level.
Decrement CTRL->TOFU.IN_TRANSACTION.
(rollback_transaction): Likewise.  Only ever rollback a non-batch
transaction.
(opendbs): Assert that there are no outstanding transactions.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
This commit is contained in:
Neal H. Walfield 2016-08-29 15:13:45 +02:00
parent 4c2abb221b
commit 33e97813d7
2 changed files with 22 additions and 20 deletions
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g10/gpg.h
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@ -82,6 +82,7 @@ struct server_control_s
/* Local data for tofu.c */
struct {
tofu_dbs_t dbs;
int in_transaction;
int batch_update_ref;
time_t batch_update_started;
} tofu;