eliminate commit_cmds driver callback

no driver implements it, and this isn't likely to change any time soon.

src/driver.h

@@ -295,9 +295,6 @@ struct driver {
 	void (*cancel_cmds)( store_t *ctx,
 	                     void (*cb)( void *aux ), void *aux );
 
-	/* Commit any pending set_msg_flags() commands. */
-	void (*commit_cmds)( store_t *ctx );
-
 	/* Get approximate amount of memory occupied by the driver. */
 	uint (*get_memory_usage)( store_t *ctx );
 

src/drv_imap.c

@@ -3653,14 +3653,6 @@ imap_cancel_cmds( store_t *gctx,
 	}
 }
 
-/******************* imap_commit_cmds *******************/
-
-static void
-imap_commit_cmds( store_t *gctx )
-{
-	(void)gctx;
-}
-
 /******************* imap_get_memory_usage *******************/
 
 static uint
@@ -4039,7 +4031,6 @@ struct driver imap_driver = {
 	imap_trash_msg,
 	imap_close_box,
 	imap_cancel_cmds,
-	imap_commit_cmds,
 	imap_get_memory_usage,
 	imap_get_fail_state,
 };

src/drv_maildir.c

@@ -1853,12 +1853,6 @@ maildir_cancel_cmds( store_t *gctx ATTR_UNUSED,
 	cb( aux );
 }
 
-static void
-maildir_commit_cmds( store_t *gctx )
-{
-	(void) gctx;
-}
-
 static uint
 maildir_get_memory_usage( store_t *gctx ATTR_UNUSED )
 {
@@ -1983,7 +1977,6 @@ struct driver maildir_driver = {
 	maildir_trash_msg,
 	maildir_close_box,
 	maildir_cancel_cmds,
-	maildir_commit_cmds,
 	maildir_get_memory_usage,
 	maildir_get_fail_state,
 };

src/drv_proxy.c

@@ -21,7 +21,6 @@ typedef union proxy_store {
 		driver_t *real_driver;
 		store_t *real_store;
 		gen_cmd_t *pending_cmds, **pending_cmds_append;
-		gen_cmd_t *check_cmds, **check_cmds_append;
 		wakeup_t wakeup;
 		uint fake_nextuid;
 		char is_fake;  // Was "created" by dry-run
@@ -91,42 +90,25 @@ proxy_wakeup( void *aux )
 }
 
 static void
-proxy_invoke( gen_cmd_t *cmd, int checked, const char *name )
+proxy_invoke( gen_cmd_t *cmd, const char *name )
 {
 	proxy_store_t *ctx = cmd->ctx;
 	if (ctx->force_async) {
-		debug( "%s[% 2d] Queue %s%s\n", ctx->label, cmd->tag, name, checked ? " (checked)" : "" );
+		debug( "%s[% 2d] Queue %s\n", ctx->label, cmd->tag, name );
 		cmd->next = NULL;
-		if (checked) {
-			*ctx->check_cmds_append = cmd;
-			ctx->check_cmds_append = &cmd->next;
-		} else {
-			*ctx->pending_cmds_append = cmd;
-			ctx->pending_cmds_append = &cmd->next;
-			conf_wakeup( &ctx->wakeup, 0 );
-		}
+		*ctx->pending_cmds_append = cmd;
+		ctx->pending_cmds_append = &cmd->next;
+		conf_wakeup( &ctx->wakeup, 0 );
 	} else {
 		cmd->queued_cb( cmd );
 		proxy_cmd_done( cmd );
 	}
 }
 
-static void
-proxy_flush_checked_cmds( proxy_store_t *ctx )
-{
-	if (ctx->check_cmds) {
-		*ctx->pending_cmds_append = ctx->check_cmds;
-		ctx->pending_cmds_append = ctx->check_cmds_append;
-		ctx->check_cmds_append = &ctx->check_cmds;
-		ctx->check_cmds = NULL;
-		conf_wakeup( &ctx->wakeup, 0 );
-	}
-}
-
 static void
 proxy_cancel_queued_cmds( proxy_store_t *ctx )
 {
-	if (ctx->pending_cmds || ctx->check_cmds) {
+	if (ctx->pending_cmds) {
 		// This would involve directly invoking the result callbacks with
 		// DRV_CANCEL, for which we'd need another set of dispatch functions.
 		// The autotest doesn't need that, so save the effort.
@@ -253,7 +235,7 @@ static @type@proxy_@name@( store_t *gctx@decl_args@, void (*cb)( @decl_cb_args@v
 	cmd->callback = cb;
 	cmd->callback_aux = aux;
 	@assign_state@
-	proxy_invoke( &cmd->gen, @checked@, "@name@" );
+	proxy_invoke( &cmd->gen, "@name@" );
 }
 //# END
 
@@ -382,7 +364,6 @@ static @type@proxy_@name@( store_t *gctx@decl_args@, void (*cb)( @decl_cb_args@v
 //# DEFINE store_msg_fake_cb_args , cmd->to_trash ? 0 : ctx->fake_nextuid++
 //# DEFINE store_msg_counted 1
 
-//# DEFINE set_msg_flags_checked 1
 //# DEFINE set_msg_flags_print_fmt_args , uid=%u, add=%s, del=%s
 //# DEFINE set_msg_flags_print_pass_args , cmd->uid, fmt_flags( cmd->add ).str, fmt_flags( cmd->del ).str
 //# DEFINE set_msg_flags_driable 1
@@ -397,10 +378,6 @@ static @type@proxy_@name@( store_t *gctx@decl_args@, void (*cb)( @decl_cb_args@v
 //# DEFINE close_box_fake_cb_args , 0
 //# DEFINE close_box_counted 1
 
-//# DEFINE commit_cmds_print_args
-	proxy_flush_checked_cmds( ctx );
-//# END
-
 //# DEFINE cancel_cmds_print_cb_args
 	proxy_cancel_queued_cmds( ctx );
 //# END
@@ -465,7 +442,6 @@ proxy_alloc_store( store_t *real_ctx, const char *label, int force_async )
 	ctx->label = label;
 	ctx->force_async = force_async;
 	ctx->pending_cmds_append = &ctx->pending_cmds;
-	ctx->check_cmds_append = &ctx->check_cmds;
 	ctx->real_driver = real_ctx->driver;
 	ctx->real_store = real_ctx;
 	ctx->real_driver->set_callbacks( ctx->real_store,

src/drv_proxy_gen.pl

@@ -158,7 +158,6 @@ for (@ptypes) {
 			my $r_pass_args = make_args($r_cmd_args);
 			$replace{'assign_state'} = $r_pass_args =~ s/([^,]+), /cmd->$1 = $1\;\n/gr;
 
-			$replace{'checked'} = '0';
 			$template = "CALLBACK";
 		} else {
 			$pass_args = make_args($cmd_args);

src/sync.c

@@ -1373,7 +1373,6 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux
 		}
 	}
 	for (t = 0; t < 2; t++) {
-		svars->drv[t]->commit_cmds( svars->ctx[t] );
 		svars->state[t] |= ST_SENT_FLAGS;
 		msgs_flags_set( svars, t );
 		if (check_cancel( svars ))