support/sys-sendfile.c

   1 /*
   2  * <sys/sendfile.h> wrapper functions.
   3  *
   4  * Authors:
   5  *   Jonathan Pryor (jonpryor@vt.edu)
   6  *
   7  * Copyright (C) 2004 Jonathan Pryor
   8  */
   9
  10 #include <sys/types.h>
  11 #include <errno.h>
  12
  13 #include "map.h"
  14 #include "mph.h"
  15
  16 #ifdef HAVE_SYS_SENDFILE_H
  17 #include <sys/sendfile.h>
  18 #endif /* ndef HAVE_SYS_SENDFILE_H */
  19
  20 G_BEGIN_DECLS
  21
  22 #ifdef HAVE_SENDFILE
  23 mph_ssize_t
  24 Mono_Posix_Syscall_sendfile (int out_fd, int in_fd, mph_off_t *offset, mph_size_t count)
  25 {
  26         off_t _offset;
  27         ssize_t r;
  28         mph_return_if_off_t_overflow (*offset);
  29
  30         _offset = *offset;
  31
  32         r = sendfile (out_fd, in_fd, &_offset, (size_t) count);
  33
  34         *offset = _offset;
  35
  36         return r;
  37 }
  38 #endif /* ndef HAVE_SENDFILE */
  39
  40 G_END_DECLS
  41
  42 /*
  43  * vim: noexpandtab
  44  */