dirstate-v2: no longer register the data-file during transaction
If the data file change during the transaction, we cannot truncate it.
The content of the file itself is fine as it will get backed up at the same time
as the docket.
Leaving the trailing data at the end of failed transaction is fine. The
dirstate-v2 format supports it. The dead data will simply we written over if
necessary.
#ifndef HG_COMPAT_H
#define HG_COMPAT_H
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/* msvc 6.0 has problems */
#define inline __inline
#if defined(_WIN64)
typedef __int64 ssize_t;
typedef unsigned __int64 uintptr_t;
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typedef int ssize_t;
typedef unsigned int uintptr_t;
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typedef signed char int8_t;
typedef short int16_t;
typedef long int32_t;
typedef __int64 int64_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
typedef unsigned __int64 uint64_t;
#else
/* VC++ 14 */
#include <stdint.h>
#if defined(_WIN64)
typedef __int64 ssize_t;
#else
typedef int ssize_t;
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/* not msvc */
#include <stdint.h>
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#else
/* not windows */
#include <sys/types.h>
#if defined __BEOS__ && !defined __HAIKU__
#include <ByteOrder.h>
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#include <arpa/inet.h>
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#include <inttypes.h>
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#if defined __hpux || defined __SUNPRO_C || defined _AIX
#define inline
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#ifdef __linux
#define inline __inline
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