40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
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/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* Automatique. Distributed only by permission. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#include <mlvalues.h>
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#include "unixsupport.h"
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#ifdef HAS_UNISTD
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#include <unistd.h>
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#else
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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#endif
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static int seek_command_table[] = {
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FILE_BEGIN, FILE_CURRENT, FILE_END
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};
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value unix_lseek(value fd, value ofs, value cmd) /* ML */
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{
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long ret;
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ret = SetFilePointer(Handle_val(fd), Long_val(ofs), NULL,
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seek_command_table[Int_val(cmd)]);
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if (ret == -1) {
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_dosmaperr(GetLastError());
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uerror("lseek", Nothing);
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}
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return Val_long(ret);
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}
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