s3:libsmbconf: add transactions to the libsmbconf api

This is useful for wrapping higher level aggregate operations
in transactions. The text backend implementations just return
WERR_OK, the registry backend implementatoins use the
regdb_transaction_start|commit|cancel routines just added.

Michael

5 files changed, 57 insertions, 0 deletions

diff --git a/lib/smbconf/smbconf.c b/lib/smbconf/smbconf.c
index 595fd23421..f25ccae0d4 100644
--- a/lib/smbconf/smbconf.c
+++ b/lib/smbconf/smbconf.c
@@ -399,3 +399,18 @@ WERROR smbconf_delete_global_includes(struct smbconf_ctx *ctx)
 
 	return werr;
 }
+
+WERROR smbconf_transaction_start(struct smbconf_ctx *ctx)
+{
+	return ctx->ops->transaction_start(ctx);
+}
+
+WERROR smbconf_transaction_commit(struct smbconf_ctx *ctx)
+{
+	return ctx->ops->transaction_commit(ctx);
+}
+
+WERROR smbconf_transaction_cancel(struct smbconf_ctx *ctx)
+{
+	return ctx->ops->transaction_cancel(ctx);
+}
diff --git a/lib/smbconf/smbconf.h b/lib/smbconf/smbconf.h
index 106fae6431..517302ac88 100644
--- a/lib/smbconf/smbconf.h
+++ b/lib/smbconf/smbconf.h
@@ -94,4 +94,8 @@ WERROR smbconf_set_global_includes(struct smbconf_ctx *ctx,
 WERROR smbconf_delete_includes(struct smbconf_ctx *ctx, const char *service);
 WERROR smbconf_delete_global_includes(struct smbconf_ctx *ctx);
 
+WERROR smbconf_transaction_start(struct smbconf_ctx *ctx);
+WERROR smbconf_transaction_commit(struct smbconf_ctx *ctx);
+WERROR smbconf_transaction_cancel(struct smbconf_ctx *ctx);
+
 #endif /*  _LIBSMBCONF_H_  */
diff --git a/lib/smbconf/smbconf_private.h b/lib/smbconf/smbconf_private.h
index c9e44181c6..e6998ad639 100644
--- a/lib/smbconf/smbconf_private.h
+++ b/lib/smbconf/smbconf_private.h
@@ -68,6 +68,9 @@ struct smbconf_ops {
 			       uint32_t num_includes, const char **includes);
 	WERROR (*delete_includes)(struct smbconf_ctx *ctx,
 				  const char *service);
+	WERROR (*transaction_start)(struct smbconf_ctx *ctx);
+	WERROR (*transaction_commit)(struct smbconf_ctx *ctx);
+	WERROR (*transaction_cancel)(struct smbconf_ctx *ctx);
 };
 
 struct smbconf_ctx {
diff --git a/lib/smbconf/smbconf_txt.c b/lib/smbconf/smbconf_txt.c
index 1df4a9fdb7..501382cc5f 100644
--- a/lib/smbconf/smbconf_txt.c
+++ b/lib/smbconf/smbconf_txt.c
@@ -612,6 +612,20 @@ static WERROR smbconf_txt_delete_includes(struct smbconf_ctx *ctx,
 	return WERR_NOT_SUPPORTED;
 }
 
+static WERROR smbconf_txt_transaction_start(struct smbconf_ctx *ctx)
+{
+	return WERR_OK;
+}
+
+static WERROR smbconf_txt_transaction_commit(struct smbconf_ctx *ctx)
+{
+	return WERR_OK;
+}
+
+static WERROR smbconf_txt_transaction_cancel(struct smbconf_ctx *ctx)
+{
+	return WERR_OK;
+}
 
 static struct smbconf_ops smbconf_ops_txt = {
 	.init			= smbconf_txt_init,
@@ -633,6 +647,9 @@ static struct smbconf_ops smbconf_ops_txt = {
 	.get_includes		= smbconf_txt_get_includes,
 	.set_includes		= smbconf_txt_set_includes,
 	.delete_includes	= smbconf_txt_delete_includes,
+	.transaction_start	= smbconf_txt_transaction_start,
+	.transaction_commit	= smbconf_txt_transaction_commit,
+	.transaction_cancel	= smbconf_txt_transaction_cancel,
 };
 
 
diff --git a/source3/lib/smbconf/smbconf_reg.c b/source3/lib/smbconf/smbconf_reg.c
index b1e34e5164..5a5c0ead65 100644
--- a/source3/lib/smbconf/smbconf_reg.c
+++ b/source3/lib/smbconf/smbconf_reg.c
@@ -1066,6 +1066,21 @@ done:
 	return werr;
 }
 
+static WERROR smbconf_reg_transaction_start(struct smbconf_ctx *ctx)
+{
+	return regdb_transaction_start();
+}
+
+static WERROR smbconf_reg_transaction_commit(struct smbconf_ctx *ctx)
+{
+	return regdb_transaction_commit();
+}
+
+static WERROR smbconf_reg_transaction_cancel(struct smbconf_ctx *ctx)
+{
+	return regdb_transaction_cancel();
+}
+
 struct smbconf_ops smbconf_ops_reg = {
 	.init			= smbconf_reg_init,
 	.shutdown		= smbconf_reg_shutdown,
@@ -1086,6 +1101,9 @@ struct smbconf_ops smbconf_ops_reg = {
 	.get_includes		= smbconf_reg_get_includes,
 	.set_includes		= smbconf_reg_set_includes,
 	.delete_includes	= smbconf_reg_delete_includes,
+	.transaction_start	= smbconf_reg_transaction_start,
+	.transaction_commit	= smbconf_reg_transaction_commit,
+	.transaction_cancel	= smbconf_reg_transaction_cancel,
 };