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It can be accessed and reviewed at: https://github.com/lxc/lxc/pull/3012
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=== Description (from pull-request) ===
Suggested usage:
return error_log_errno(err, "Failed: %s", "some error");
It sets errno to the value of err, then calls SYSERROR with the format and remaining args.
Suggested-by: Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com>
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
From 87e16f3c31f4dd3d1f7e61d0fab774ed6a8bc6cd Mon Sep 17 00:00:00 2001
From: Thomas Parrott <thomas.parr...@canonical.com>
Date: Tue, 21 May 2019 17:25:52 +0100
Subject: [PATCH] lxc/log: Adds error_log_errno macro
Suggested usage:
return error_log_errno(err, "Failed: %s", "some error");
It sets errno to the value of err, then calls SYSERROR with the format and
remaining args.
Suggested-by: Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com>
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
---
src/lxc/log.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/lxc/log.h b/src/lxc/log.h
index 5afe4e0935..8b093de90b 100644
--- a/src/lxc/log.h
+++ b/src/lxc/log.h
@@ -505,6 +505,13 @@ ATTR_UNUSED static inline void LXC_##LEVEL(struct
lxc_log_locinfo* locinfo, \
} while (0)
#endif
+#define error_log_errno(__errno__, format, ...) \
+ ({ \
+ errno = __errno__; \
+ SYSERROR(format, ##__VA_ARGS__); \
+ -1; \
+ })
+
extern int lxc_log_fd;
extern int lxc_log_syslog(int facility);
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