1 files changed, 73 insertions, 0 deletions
diff --git a/src/include/postmaster/pgarch.h b/src/include/postmaster/pgarch.h
new file mode 100644
index 0000000..f366a15
--- /dev/null
+++ b/src/include/postmaster/pgarch.h
@@ -0,0 +1,73 @@
+/*-------------------------------------------------------------------------
+ *
+ * pgarch.h
+ *	  Exports from postmaster/pgarch.c.
+ *
+ * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/postmaster/pgarch.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef _PGARCH_H
+#define _PGARCH_H
+
+/* ----------
+ * Archiver control info.
+ *
+ * We expect that archivable files within pg_wal will have names between
+ * MIN_XFN_CHARS and MAX_XFN_CHARS in length, consisting only of characters
+ * appearing in VALID_XFN_CHARS.  The status files in archive_status have
+ * corresponding names with ".ready" or ".done" appended.
+ * ----------
+ */
+#define MIN_XFN_CHARS	16
+#define MAX_XFN_CHARS	40
+#define VALID_XFN_CHARS "0123456789ABCDEF.history.backup.partial"
+
+extern Size PgArchShmemSize(void);
+extern void PgArchShmemInit(void);
+extern bool PgArchCanRestart(void);
+extern void PgArchiverMain(void) pg_attribute_noreturn();
+extern void PgArchWakeup(void);
+extern void PgArchForceDirScan(void);
+
+/*
+ * The value of the archive_library GUC.
+ */
+extern PGDLLIMPORT char *XLogArchiveLibrary;
+
+/*
+ * Archive module callbacks
+ *
+ * These callback functions should be defined by archive libraries and returned
+ * via _PG_archive_module_init().  ArchiveFileCB is the only required callback.
+ * For more information about the purpose of each callback, refer to the
+ * archive modules documentation.
+ */
+typedef bool (*ArchiveCheckConfiguredCB) (void);
+typedef bool (*ArchiveFileCB) (const char *file, const char *path);
+typedef void (*ArchiveShutdownCB) (void);
+
+typedef struct ArchiveModuleCallbacks
+{
+	ArchiveCheckConfiguredCB check_configured_cb;
+	ArchiveFileCB archive_file_cb;
+	ArchiveShutdownCB shutdown_cb;
+} ArchiveModuleCallbacks;
+
+/*
+ * Type of the shared library symbol _PG_archive_module_init that is looked
+ * up when loading an archive library.
+ */
+typedef void (*ArchiveModuleInit) (ArchiveModuleCallbacks *cb);
+
+/*
+ * Since the logic for archiving via a shell command is in the core server
+ * and does not need to be loaded via a shared library, it has a special
+ * initialization function.
+ */
+extern void shell_archive_init(ArchiveModuleCallbacks *cb);
+
+#endif							/* _PGARCH_H */