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 <config.h>
  11
  12 #include <sys/types.h>
  13 #include <errno.h>
  14
  15 #include "map.h"
  16 #include "mph.h"
  17
  18 #ifdef HAVE_SYS_SENDFILE_H
  19 #include <sys/sendfile.h>
  20 #endif /* ndef HAVE_SYS_SENDFILE_H */
  21
  22 G_BEGIN_DECLS
  23
  24 #ifdef HAVE_SENDFILE
  25 mph_ssize_t
  26 Mono_Posix_Syscall_sendfile (int out_fd, int in_fd, mph_off_t *offset, mph_size_t count)
  27 {
  28         off_t _offset;
  29         ssize_t r;
  30         mph_return_if_off_t_overflow (*offset);
  31
  32         _offset = *offset;
  33
  34 #if defined(PLATFORM_MACOSX) || defined(PLATFORM_BSD)
  35         /* The BSD version has 6 arguments */
  36         g_assert_not_reached ();
  37 #else
  38         r = sendfile (out_fd, in_fd, &_offset, (size_t) count);
  39 #endif
  40
  41         *offset = _offset;
  42
  43         return r;
  44 }
  45 #endif /* ndef HAVE_SENDFILE */
  46
  47 G_END_DECLS
  48
  49 /*
  50  * vim: noexpandtab
  51  */