raft.h: Add raft_version_number and macros

Author: Mathieu Borderé

include/raft.h

@@ -10,6 +10,16 @@
 
 #define RAFT_API __attribute__((visibility("default")))
 
+/**
+ * Version.
+ */
+#define RAFT_VERSION_MAJOR    1
+#define RAFT_VERSION_MINOR    15
+#define RAFT_VERSION_RELEASE  0
+#define RAFT_VERSION_NUMBER (RAFT_VERSION_MAJOR *100*100 + RAFT_VERSION_MINOR *100 + RAFT_VERSION_RELEASE)
+
+int raft_version_number (void);
+
 /**
  * Error codes.
  */

src/raft.c

@@ -24,6 +24,11 @@
 #define DEFAULT_MAX_CATCH_UP_ROUNDS 10
 #define DEFAULT_MAX_CATCH_UP_ROUND_DURATION (5 * 1000)
 
+int raft_version_number (void)
+{
+    return RAFT_VERSION_NUMBER;
+}
+
 static int ioFsmVersionCheck(struct raft *r,
                              struct raft_io *io,
                              struct raft_fsm *fsm);