/usr/i686-w64-mingw32/lib/ocaml/caml/unixsupport.h is in ocaml-mingw-w64-i686 4.01.0~20140328-1.
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/* */
/* OCaml */
/* */
/* Xavier Leroy and Pascal Cuoq, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
#define WIN32_LEAN_AND_MEAN
#include <wtypes.h>
#include <winbase.h>
#include <stdlib.h>
#include <direct.h>
#include <process.h>
#include <sys/types.h>
#include <winsock2.h>
#ifdef HAS_IPV6
#include <ws2tcpip.h>
#include <wspiapi.h>
#endif
struct filedescr {
union {
HANDLE handle;
SOCKET socket;
} fd; /* Real windows handle */
enum { KIND_HANDLE, KIND_SOCKET } kind;
int crt_fd; /* C runtime descriptor */
unsigned int flags_fd; /* See FLAGS_FD_* */
};
#define Handle_val(v) (((struct filedescr *) Data_custom_val(v))->fd.handle)
#define Socket_val(v) (((struct filedescr *) Data_custom_val(v))->fd.socket)
#define Descr_kind_val(v) (((struct filedescr *) Data_custom_val(v))->kind)
#define CRT_fd_val(v) (((struct filedescr *) Data_custom_val(v))->crt_fd)
#define Flags_fd_val(v) (((struct filedescr *) Data_custom_val(v))->flags_fd)
/* extern value win_alloc_handle_or_socket(HANDLE); */
extern value win_alloc_handle(HANDLE);
extern value win_alloc_socket(SOCKET);
extern int win_CRT_fd_of_filedescr(value handle);
#define NO_CRT_FD (-1)
#define Nothing ((value) 0)
extern void win32_maperr(DWORD errcode);
extern value unix_error_of_code (int errcode);
extern void unix_error (int errcode, char * cmdname, value arg);
extern void uerror (char * cmdname, value arg);
extern value unix_freeze_buffer (value);
/* Information stored in flags_fd, describing more precisely the socket
* and its status. The whole flags_fd is initialized to 0.
*/
/* Blocking or nonblocking. By default a filedescr is in blocking state */
#define FLAGS_FD_IS_BLOCKING (1<<0)
#define UNIX_BUFFER_SIZE 65536
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