X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=fd.c;h=dc3f80f169a3b9494fe1174492f0040d434b949c;hb=4c831a0fd51a9ce4d0cca0061696d62a694815b5;hp=0fb796025945b2c33e59c6c8508d370626ac0c02;hpb=a694ab16b6ff43b545ccd530360b7224433a5b76;p=paraslash.git

diff --git a/fd.c b/fd.c
index 0fb79602..dc3f80f1 100644
--- a/fd.c
+++ b/fd.c
@@ -12,6 +12,7 @@
 #include <sys/mman.h>
 #include <fcntl.h>
 #include <sys/select.h>
+#include <sys/uio.h>
 
 #include "para.h"
 #include "error.h"
@@ -81,6 +82,27 @@ int write_nonblock(int fd, const char *buf, size_t len,
 	return written;
 }
 
+/**
+ * Simple wrapper for readv().
+ *
+ * \param fd The file descriptor to read from.
+ * \param iov Scatter/gather array used in readv().
+ * \param iovcnt Number of elements in \a iov.
+ *
+ * \return A negative error code on errors, the return value of the underlying
+ * call to readv() otherwise.
+ *
+ * \sa readv(2).
+ */
+int para_readv(int fd, struct iovec *iov, int iovcnt)
+{
+	int ret = readv(fd, iov, iovcnt);
+
+	if (ret < 0)
+		return -ERRNO_TO_PARA_ERROR(errno);
+	return ret;
+}
+
 /**
  * Check whether a file exists.
  *