From: Volker Lendecke <vl@samba.org>
Date: Sun, 21 Dec 2008 22:22:30 +0000 (+0100)
Subject: Add sys_writev
X-Git-Tag: samba-3.3.0~128
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a443c09ee81416394592bafbba40620705166da6;p=thirdparty%2Fsamba.git

Add sys_writev
(cherry picked from commit 886ebe3b6f7b5304ae9c185ee14a444977afac24)
---

diff --git a/source/include/proto.h b/source/include/proto.h
index f6b1906068b..d29a108ac48 100644
--- a/source/include/proto.h
+++ b/source/include/proto.h
@@ -1037,6 +1037,7 @@ void *sys_memalign( size_t align, size_t size );
 int sys_usleep(long usecs);
 ssize_t sys_read(int fd, void *buf, size_t count);
 ssize_t sys_write(int fd, const void *buf, size_t count);
+ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt);
 ssize_t sys_pread(int fd, void *buf, size_t count, SMB_OFF_T off);
 ssize_t sys_pwrite(int fd, const void *buf, size_t count, SMB_OFF_T off);
 ssize_t sys_send(int s, const void *msg, size_t len, int flags);
diff --git a/source/lib/system.c b/source/lib/system.c
index eabb6d6dc48..5b06d3c7600 100644
--- a/source/lib/system.c
+++ b/source/lib/system.c
@@ -141,6 +141,20 @@ ssize_t sys_write(int fd, const void *buf, size_t count)
 	return ret;
 }
 
+/*******************************************************************
+A writev wrapper that will deal with EINTR.
+********************************************************************/
+
+ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt)
+{
+	ssize_t ret;
+
+	do {
+		ret = writev(fd, iov, iovcnt);
+	} while (ret == -1 && errno == EINTR);
+	return ret;
+}
+
 /*******************************************************************
 A pread wrapper that will deal with EINTR and 64-bit file offsets.
 ********************************************************************/