summaryrefslogtreecommitdiff
path: root/support/dktools/dk4ftime.ctr
blob: 949011fe93716faf0a541a6a5978fb5ff4657a0f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
license		=	bsd



%%	header

/**	@file
	File related timestamps (timestamp comparison, converstion to text.
*/

#ifndef DK4CONF_H_INCLUDED
#include "dk4conf.h"
#endif

#ifndef DK4TYPES_H_INCLUDED
#include "dk4types.h"
#endif

#ifndef DK4ERROR_H_INCLUDED
#include "dk4error.h"
#endif

#ifndef DK4TIMEC_H_INCLUDED
#include "dk4timec.h"
#endif

#if DK4_ON_WINDOWS
#ifndef WINDOWS_H_INCLUDED
#include <windows.h>
#define	WINDOWS_H_INCLUDED 1
#endif
#else
#if DK4_HAVE_SYS_TYPES_H
#ifndef SYS_TYPES_H_INCLUDED
#include <sys/types.h>
#define	SYS_TYPES_H_INCLUDED 1
#endif
#endif
#if DK4_TIME_WITH_SYS_TIME
#ifndef SYS_TIME_H_INCLUDED
#include <sys/time.h>
#define	SYS_TIME_H_INCLUDED 1
#endif
#ifndef TIME_H_INCLUDED
#include <time.h>
#define	TIME_H_INCLUDED 1
#endif
#else
#if DK4_HAVE_TIME_H
#ifndef TIME_H_INCLUDED
#include <time.h>
#define	TIME_H_INCLUDED 1
#endif
#else
#if DK4_HAVE_SYS_TIME_H
#ifndef SYS_TIME_H_INCLUDED
#include <sys/time.h>
#define	SYS_TIME_H_INCLUDED 1
#endif
#endif
#endif
#endif
#ifndef DK4TIME_H_INCLUDED
#include "dk4time.h"
#endif
#endif



#if DK4_ON_WINDOWS
/**	File related timestamp.
*/
typedef	FILETIME	dk4_file_time_t;
#else
/**	File related timestamp.
*/
typedef	dk4_time_t	dk4_file_time_t;
#endif



#ifdef __cplusplus
extern "C" {
#endif

/**	Compare two timestamps.
	CRT on Windows: Not used.
	@param	l	Left timestamp.
	@param	r	Right timestamp.
	@return	1 if l>r, 0 if l=r, -1 if l<r.
*/
int
dk4filetime_compare(const dk4_file_time_t *l, const dk4_file_time_t *r);

/**	Convert timestamp to text ``yyyy-mm-dd hh:mm:ss''.
	CRT on Windows: Optional.
	@param	dptr	Result buffer address.
	@param	dsz	Result buffer size (number of dkChar).
	@param	fit	Timestamp to convert.
	@param	erp	Error report, may be NULL.
	@return 1 on success, 0 on error.
	
	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if dptr or fit is NULL or dsz is 0,
	- DK4_E_MATH_OVERFLOW<br>
	  if a mathematical overflow occures in a size calculation,
	- DK4_E_BUFFER_TOO_SMALL<br>
	  if the buffer is too small,
	- DK4_E_BUG<br>
	  if CRT or Windows API functions failed to convert the timestamp to
	  local time information.
*/
int
dk4filetime_to_text_c8(
  char			*dptr,
  size_t		 dsz,
  const dk4_file_time_t	*fit,
  dk4_er_t		*erp
);

/**	Convert timestamp to text ``yyyy-mm-dd hh:mm:ss''.
	CRT on Windows: Optional.
	@param	dptr	Result buffer address.
	@param	dsz	Result buffer size (number of dkChar).
	@param	fit	Timestamp to convert.
	@param	erp	Error report, may be NULL.
	@return 1 on success, 0 on error.
	
	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if dptr or fit is NULL or dsz is 0,
	- DK4_E_MATH_OVERFLOW<br>
	  if a mathematical overflow occures in a size calculation,
	- DK4_E_BUFFER_TOO_SMALL<br>
	  if the buffer is too small,
	- DK4_E_BUG<br>
	  if CRT or Windows API functions failed to convert the timestamp to
	  local time information.
*/
int
dk4filetime_to_text_wc(
  wchar_t		*dptr,
  size_t		 dsz,
  const dk4_file_time_t	*fit,
  dk4_er_t		*erp
);

/**	Convert timestamp to text ``yyyy-mm-dd hh:mm:ss''.
	CRT on Windows: Optional.
	@param	dptr	Result buffer address.
	@param	dsz	Result buffer size (number of dkChar).
	@param	fit	Timestamp to convert.
	@param	erp	Error report, may be NULL.
	@return 1 on success, 0 on error.
	
	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if dptr or fit is NULL or dsz is 0,
	- DK4_E_MATH_OVERFLOW<br>
	  if a mathematical overflow occures in a size calculation,
	- DK4_E_BUFFER_TOO_SMALL<br>
	  if the buffer is too small,
	- DK4_E_BUG<br>
	  if CRT or Windows API functions failed to convert the timestamp to
	  local time information.
*/
int
dk4filetime_to_text(
  dkChar		*dptr,
  size_t		 dsz,
  const dk4_file_time_t	*fit,
  dk4_er_t		*erp
);

#ifdef __cplusplus
}
#endif



%%	module

#include "dk4ftime.h"

#if !DK4_ON_WINDOWS
#include "dk4timedk.h"
#endif

int
dk4filetime_compare(const dk4_file_time_t *l, const dk4_file_time_t *r)
{
  int		 back = 0;
  if (NULL != l) {
    if (NULL != r) {
#if DK4_ON_WINDOWS
      if (l->dwHighDateTime > r->dwHighDateTime) {
        back = 1;
      } else {
        if (l->dwHighDateTime < r->dwHighDateTime) {
	  back = -1;
	} else {
	  if (l->dwLowDateTime > r->dwLowDateTime) {
	    back = 1;
	  } else {
	    if (l->dwLowDateTime < r->dwLowDateTime) {
	      back = -1;
	    }
	  }
	}
      }
#else
      if (*l > *r) {
        back = 1;
      } else {
        if (*l < *r) {
	  back = -1;
	}
      }
#endif
    } else {
      back = 1;
    }
  } else {
    if (NULL != r) {
      back = -1;
    }
  }
  return back;
}