From 153a646667ff5ae7578a6027938524db91c40821 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 5 Feb 2015 23:56:14 +0000
Subject:  - Add siovec_trunc  - Add openwritevnclose  - replace
 buffer_read/write with fd_readsv/writesv  - add localtmn_from_tain_g  -
 refactor cdb_make  - rewrite buffer_getvall and buffer_putvall, with a bugfix

---
 src/libstddjb/siovec_trunc.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/libstddjb/siovec_trunc.c

(limited to 'src/libstddjb/siovec_trunc.c')

diff --git a/src/libstddjb/siovec_trunc.c b/src/libstddjb/siovec_trunc.c
new file mode 100644
index 0000000..c09225a
--- /dev/null
+++ b/src/libstddjb/siovec_trunc.c
@@ -0,0 +1,18 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/siovec.h>
+
+unsigned int siovec_trunc (siovec_t *v, unsigned int n, unsigned int len)
+{
+  register unsigned int i = siovec_len(v, n) ;
+  if (i < len) return n ;
+  len = i - len ;
+  i = n ;
+  while (len && i--)
+  {
+    register unsigned int w = len > v[i].len ? v[i].len : len ;
+    v[i].len -= w ; len -= w ;
+  }
+  return i ;
+}
-- 
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