From d7e2a8188f6e9eaccb5e1c1bd7b9d5af79429c0c Mon Sep 17 00:00:00 2001
From: ajs <ajs>
Date: Thu, 17 Feb 2005 20:02:49 +0000
Subject: 2005-02-17 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* network.h: Define a new ERRNO_IO_RETRY macro to test whether an I/O
operation should be retried. This eliminates the need to duplicate
the same logic testing for EAGAIN or EINTR in multiple places.
---
lib/ChangeLog | 6 ++++++
lib/network.h | 4 ++++
2 files changed, 10 insertions(+)
(limited to 'lib')
diff --git a/lib/ChangeLog b/lib/ChangeLog
index ac05baba..40e73ff7 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,9 @@
+2005-02-17 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
+
+ * network.h: Define a new ERRNO_IO_RETRY macro to test whether an I/O
+ operation should be retried. This eliminates the need to duplicate
+ the same logic testing for EAGAIN or EINTR in multiple places.
+
2005-02-16 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* stream.h: Declare new function stream_read_try suitable for use
diff --git a/lib/network.h b/lib/network.h
index 589b80e9..9333ef81 100644
--- a/lib/network.h
+++ b/lib/network.h
@@ -33,4 +33,8 @@ int writen (int, const u_char *, int);
-1 on error. */
extern int set_nonblocking(int fd);
+/* Does the I/O error indicate that the operation should be retried later? */
+#define ERRNO_IO_RETRY(EN) \
+ (((EN) == EAGAIN) || ((EN) == EWOULDBLOCK) || ((EN) == EINTR))
+
#endif /* _ZEBRA_NETWORK_H */
--
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