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apr_arch_atime.h
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1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2  * contributor license agreements. See the NOTICE file distributed with
3  * this work for additional information regarding copyright ownership.
4  * The ASF licenses this file to You under the Apache License, Version 2.0
5  * (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ATIME_H
18 #define ATIME_H
19 
20 #include "apr_private.h"
21 #include "apr_time.h"
22 #if APR_HAVE_TIME_H
23 #include <time.h>
24 #endif
25 
26 struct atime_t {
29  SYSTEMTIME *explodedtime;
30 };
31 
32 
33 /* Number of micro-seconds between the beginning of the Windows epoch
34  * (Jan. 1, 1601) and the Unix epoch (Jan. 1, 1970)
35  */
36 #define APR_DELTA_EPOCH_IN_USEC APR_TIME_C(11644473600000000);
37 
38 
39 static APR_INLINE void FileTimeToAprTime(apr_time_t *result, FILETIME *input)
40 {
41  /* Convert FILETIME one 64 bit number so we can work with it. */
42  *result = input->dwHighDateTime;
43  *result = (*result) << 32;
44  *result |= input->dwLowDateTime;
45  *result /= 10; /* Convert from 100 nano-sec periods to micro-seconds. */
46  *result -= APR_DELTA_EPOCH_IN_USEC; /* Convert from Windows epoch to Unix epoch */
47  return;
48 }
49 
50 
51 static APR_INLINE void AprTimeToFileTime(LPFILETIME pft, apr_time_t t)
52 {
53  LONGLONG ll;
55  ll = t * 10;
56  pft->dwLowDateTime = (DWORD)ll;
57  pft->dwHighDateTime = (DWORD) (ll >> 32);
58  return;
59 }
60 
61 
62 #endif /* ! ATIME_H */
63 
SYSTEMTIME * explodedtime
Definition: apr_arch_atime.h:29
#define APR_DELTA_EPOCH_IN_USEC
Definition: apr_arch_atime.h:36
apr_int64_t apr_time_t
Definition: apr_time.h:45
Definition: apr_arch_atime.h:26
#define APR_INLINE
Definition: apr.h:65
apr_time_t currtime
Definition: apr_arch_atime.h:28
struct apr_pool_t apr_pool_t
Definition: apr_pools.h:60
apr_pool_t * cntxt
Definition: apr_arch_atime.h:27
APR Time Library.