1 files changed, 31 insertions, 0 deletions
diff --git a/src/include/postmaster/checksumhelper.h b/src/include/postmaster/checksumhelper.h
new file mode 100644
index 00000000000..289bf2a9358
--- /dev/null
+++ b/src/include/postmaster/checksumhelper.h
@@ -0,0 +1,31 @@
+/*-------------------------------------------------------------------------
+ *
+ * checksumhelper.h
+ *	  header file for checksum helper background worker
+ *
+ *
+ * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/postmaster/checksumhelper.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef CHECKSUMHELPER_H
+#define CHECKSUMHELPER_H
+
+/* Shared memory */
+extern Size ChecksumHelperShmemSize(void);
+extern void ChecksumHelperShmemInit(void);
+
+/* Start the background processes for enabling checksums */
+bool		StartChecksumHelperLauncher(int cost_delay, int cost_limit);
+
+/* Shutdown the background processes, if any */
+void		ShutdownChecksumHelperIfRunning(void);
+
+/* Background worker entrypoints */
+void		ChecksumHelperLauncherMain(Datum arg);
+void		ChecksumHelperWorkerMain(Datum arg);
+
+#endif							/* CHECKSUMHELPER_H */