From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Fri, 10 May 2013 14:28:59 +0000 (-0300)
Subject: ras-record: retry open if busy
X-Git-Tag: v0.3.0~35
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a53e840ec5c03600d2a2a3c79e89339cb15808ca;p=users%2Fmchehab%2Frasdaemon.git

ras-record: retry open if busy

As we'll have several concurrent opens at the same time, we
need to retry if race conditions happen.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/ras-record.c b/ras-record.c
index eebfc8d..624775d 100644
--- a/ras-record.c
+++ b/ras-record.c
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "ras-events.h"
 #include "ras-mc-handler.h"
 #include "ras-logger.h"
@@ -118,9 +119,16 @@ int ras_mc_event_opendb(struct ras_events *ras)
 		return -1;
 	}
 
-	rc = sqlite3_open_v2(SQLITE_RAS_DB, &db,
-			     SQLITE_OPEN_FULLMUTEX | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
-	if (rc != SQLITE_OK) {
+	do {
+		rc = sqlite3_open_v2(SQLITE_RAS_DB, &db,
+				     SQLITE_OPEN_FULLMUTEX |
+				     SQLITE_OPEN_READWRITE |
+				     SQLITE_OPEN_CREATE, NULL);
+		if (rc == SQLITE_BUSY)
+			usleep(10000);
+	} while (rc == SQLITE_BUSY);
+
+        if (rc != SQLITE_OK) {
 		log(TERM, LOG_ERR, "Failed to connect to %s: error = %d\n",
 		       SQLITE_RAS_DB, rc);
 		free(priv);