Add missing gtm backup files to the repo

We missed them in commit f70597bb

2 files changed, 121 insertions, 0 deletions

diff --git a/src/gtm/main/gtm_backup.c b/src/gtm/main/gtm_backup.c
new file mode 100644
index 0000000000..5318996e25
--- /dev/null
+++ b/src/gtm/main/gtm_backup.c
@@ -0,0 +1,90 @@
+#include "gtm/gtm_c.h"
+#include "gtm/gtm_lock.h"
+#include "gtm/gtm_txn.h"
+#include "gtm/gtm_seq.h"
+#include "gtm/gtm_backup.h"
+#include "gtm/elog.h"
+
+GTM_RWLock gtm_bkup_lock;
+bool gtm_need_bkup;
+
+extern char GTMControlFile[];
+
+
+
+void GTM_WriteRestorePoint(void)
+{
+	FILE *f = fopen(GTMControlFile, "w");
+
+	if (f == NULL)
+	{
+		ereport(LOG, (errno,
+					  errmsg("Cannot open control file"),
+					  errhint("%s", strerror(errno))));
+		return;
+	}
+	GTM_RWLockAcquire(&gtm_bkup_lock, GTM_LOCKMODE_WRITE);
+	if (!gtm_need_bkup)
+	{
+		GTM_RWLockRelease(&gtm_bkup_lock);
+		return;
+	}
+	gtm_need_bkup = FALSE;
+	GTM_RWLockRelease(&gtm_bkup_lock);
+	GTM_WriteRestorePointXid(f);
+	GTM_WriteRestorePointSeq(f);
+	fclose(f);
+}
+
+void GTM_WriteBarrierBackup(char *barrier_id)
+{
+#define MyMAXPATH 1023
+
+	FILE  *f;
+	char BarrierFilePath[MyMAXPATH+1];
+	extern char *GTMDataDir;
+
+	snprintf(BarrierFilePath, MyMAXPATH, "%s/GTM_%s.control", GTMDataDir, barrier_id);
+	if ((f = fopen(BarrierFilePath, "w")) == NULL)
+	{
+		ereport(LOG, (errno,
+					  errmsg("Cannot open control file"),
+					  errhint("%s", strerror(errno))));
+		return;
+	}
+	GTM_RWLockAcquire(&gtm_bkup_lock, GTM_LOCKMODE_WRITE);
+	gtm_need_bkup = FALSE;
+	GTM_RWLockRelease(&gtm_bkup_lock);
+	GTM_WriteRestorePointXid(f);
+	GTM_WriteRestorePointSeq(f);
+	fclose(f);
+}
+	
+
+void GTM_MakeBackup(char *path)
+{
+	FILE *f = fopen(path, "w");
+
+	if (f == NULL)
+	{
+		ereport(LOG, (errno,
+					  errmsg("Cannot open backup file %s", path),
+					  errhint("%s", strerror(errno))));
+		return;
+	}
+	GTM_SaveTxnInfo(f);
+	GTM_SaveSeqInfo(f);
+	fclose(f);
+}
+
+void GTM_SetNeedBackup(void)
+{
+	GTM_RWLockAcquire(&gtm_bkup_lock, GTM_LOCKMODE_READ);
+	gtm_need_bkup = TRUE;
+	GTM_RWLockRelease(&gtm_bkup_lock);
+}
+
+bool GTM_NeedBackup(void)
+{
+	return gtm_need_bkup;
+}
diff --git a/src/include/gtm/gtm_backup.h b/src/include/gtm/gtm_backup.h
new file mode 100644
index 0000000000..4e6893344a
--- /dev/null
+++ b/src/include/gtm/gtm_backup.h
@@ -0,0 +1,31 @@
+/*-------------------------------------------------------------------------
+ *
+ * gtm_backup.h
+ *
+ *
+ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ * Portions Copyright (c) 2010-2013 Postgres-XC Development Group
+ *
+ * $PostgreSQL$
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef _GTM_BACKUP_H
+#define _GTM_BACKUP_H
+
+#include "gtm/gtm_c.h"
+#include "gtm/gtm_lock.h"
+#include "gtm/gtm_seq.h"
+
+extern GTM_RWLock	gtm_bkup_lock;
+
+#define RestoreDuration	2000
+
+extern void GTM_WriteRestorePoint(void);
+extern void GTM_MakeBackup(char *path);
+extern void GTM_SetNeedBackup(void);
+extern bool GTM_NeedBackup(void);
+extern void GTM_WriteBarrierBackup(char *barrier_id);
+
+#endif /* GTM_BACKUP_H */