1 files changed, 51 insertions, 0 deletions
diff --git a/src/core/transaction.h b/src/core/transaction.h
new file mode 100644
index 0000000..151e02d
--- /dev/null
+++ b/src/core/transaction.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+typedef struct Transaction Transaction;
+
+#include "hashmap.h"
+#include "job.h"
+#include "manager.h"
+#include "unit.h"
+
+struct Transaction {
+        /* Jobs to be added */
+        Hashmap *jobs;      /* Unit object => Job object list 1:1 */
+        Job *anchor_job;      /* the job the user asked for */
+        bool irreversible;
+};
+
+Transaction *transaction_new(bool irreversible);
+Transaction *transaction_free(Transaction *tr);
+Transaction *transaction_abort_and_free(Transaction *tr);
+DEFINE_TRIVIAL_CLEANUP_FUNC(Transaction*, transaction_abort_and_free);
+
+typedef enum TransactionAddFlags {
+        TRANSACTION_MATTERS                         = 1 << 0,
+        TRANSACTION_CONFLICTS                       = 1 << 1,
+        TRANSACTION_IGNORE_REQUIREMENTS             = 1 << 2,
+        TRANSACTION_IGNORE_ORDER                    = 1 << 3,
+
+        /* Propagate a START job to other units like a RESTART */
+        TRANSACTION_PROPAGATE_START_AS_RESTART      = 1 << 4,
+
+        /* Indicate that we're in the recursion for processing UNIT_ATOM_PROPAGATE_STOP_GRACEFUL units */
+        TRANSACTION_PROCESS_PROPAGATE_STOP_GRACEFUL = 1 << 5,
+} TransactionAddFlags;
+
+void transaction_add_propagate_reload_jobs(
+                Transaction *tr,
+                Unit *unit, Job *by,
+                TransactionAddFlags flags);
+
+int transaction_add_job_and_dependencies(
+                Transaction *tr,
+                JobType type,
+                Unit *unit,
+                Job *by,
+                TransactionAddFlags flags,
+                sd_bus_error *e);
+
+int transaction_activate(Transaction *tr, Manager *m, JobMode mode, Set *affected, sd_bus_error *e);
+int transaction_add_isolate_jobs(Transaction *tr, Manager *m);
+int transaction_add_triggering_jobs(Transaction *tr, Unit *u);