1 files changed, 49 insertions, 0 deletions
diff --git a/otherlibs/win32unix/write.c b/otherlibs/win32unix/write.c
new file mode 100644
index 000000000..bf79c0e0c
--- /dev/null
+++ b/otherlibs/win32unix/write.c
@@ -0,0 +1,49 @@
+/***********************************************************************/
+/*                                                                     */
+/*                           Objective Caml                            */
+/*                                                                     */
+/*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         */
+/*                                                                     */
+/*  Copyright 1996 Institut National de Recherche en Informatique et   */
+/*  Automatique.  Distributed only by permission.                      */
+/*                                                                     */
+/***********************************************************************/
+
+/* $Id$ */
+
+#include <errno.h>
+#include <string.h>
+#include <mlvalues.h>
+#include <memory.h>
+#include <signals.h>
+#include "unixsupport.h"
+
+value unix_write(value fd, value buf, value vofs, value vlen) /* ML */
+{
+  long ofs, len, written;
+  DWORD numbytes, numwritten;
+  BOOL ret;
+  char iobuf[UNIX_BUFFER_SIZE];
+  HANDLE h = Handle_val(fd);
+
+  Begin_root (buf);
+    ofs = Long_val(vofs);
+    len = Long_val(vlen);
+    written = 0;
+    while (len > 0) {
+      numbytes = len > UNIX_BUFFER_SIZE ? UNIX_BUFFER_SIZE : len;
+      bcopy(&Byte(buf, ofs), iobuf, numbytes);
+      enter_blocking_section();
+      ret = WriteFile(h, iobuf, numbytes, &numwritten, NULL);
+      leave_blocking_section();
+      if (! ret) {
+        _dosmaperr(GetLastError());
+        uerror("write", Nothing);
+      }
+      written += numwritten;
+      ofs += numwritten;
+      len -= numwritten;
+    }
+  End_roots();
+  return Val_long(written);
+}