keyboxd: New command TRANSACTION.

* kbx/backend-sqlite.c (be_sqlite_rollback): New.
(be_sqlite_commit): New.
(be_sqlite_search): Take care of global transactions.
(be_sqlite_store): Ditto.
(be_sqlite_delete): Ditto.
* kbx/frontend.c (kbxd_rollback, kbxd_commit): New.
* kbx/keyboxd.h (opt): Add vars for transactions.
* kbx/kbxserver.c (struct server_local_s): Add fields next_session and
client_pid.
(session_list): New var.
(cmd_transaction): New.
(register_commands): Register command.
(kbxd_start_command_handler): Store pids and track sessions.  Do a
final rollback.
--

This command is currently an experiment to allow a client to run
everything in one session.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/kbx/keyboxd.h b/kbx/keyboxd.h
index 22988bf1b..9cc2c23a6 100644
--- a/kbx/keyboxd.h
+++ b/kbx/keyboxd.h
@@ -45,6 +45,15 @@ struct
   /* True if we are running detached from the tty. */
   int running_detached;
 
+  /*
+   * Global state variables.
+   */
+
+  /* Whether a global transaction has been requested along with the
+   * caller's pid and whether a transaction is active.  */
+  pid_t transaction_pid;
+  unsigned int in_transaction : 1;
+  unsigned int active_transaction : 1;
 } opt;
 
 
@@ -118,6 +127,7 @@ struct server_control_s
   unsigned int filter_x509 : 1;
   /* Used by SEARCH and NEXT.  */
   unsigned int no_data_return : 1;
+
 };