summaryrefslogtreecommitdiff
path: root/src/examples/eina/eina_value_03.c
blob: be99868626bcc58572071a968d435ce8b653342c (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
//Compile with:
//gcc eina_value_03.c -o eina_value_03 `pkg-config --cflags --libs eina`

#include <Eina.h>
#include <sys/time.h>

static Eina_Bool
_tz_setup(const Eina_Value_Type *type, void *mem)
{
   memset(mem, 0, type->value_size);
   return EINA_TRUE;
}

static Eina_Bool
_tz_flush(const Eina_Value_Type *type EINA_UNUSED, void *mem EINA_UNUSED)
{
   return EINA_TRUE;
}

static Eina_Bool
_tz_copy(const Eina_Value_Type *type EINA_UNUSED, const void *src, void * dst)
{
   struct timezone *tzsrc = (struct timezone *)src;
   struct timezone *tzdst = dst;
   *tzdst = *tzsrc;
   return EINA_TRUE;
}

static int
_tz_compare(const Eina_Value_Type *type EINA_UNUSED, const void *a, const void *b)
{
   struct timezone tza = *(struct timezone*)a;
   struct timezone tzb = *(struct timezone*)b;

   if (tza.tz_minuteswest < tzb.tz_minuteswest)
     return -1;
   else if (tza.tz_minuteswest > tzb.tz_minuteswest)
     return 1;
   return 0;
}

static Eina_Bool
_tz_pset(const Eina_Value_Type *type EINA_UNUSED, void *mem, const void *ptr)
{
   *(struct timezone*)mem = *(struct timezone*)ptr;
   return EINA_TRUE;
}

static Eina_Bool
_tz_vset(const Eina_Value_Type *type, void *mem, va_list args)
{
   const struct timezone tz = va_arg(args, struct timezone);
   return _tz_pset(type, mem, &tz);
}

static Eina_Bool
_tz_pget(const Eina_Value_Type *type, const void *mem, void *ptr)
{
   memcpy(ptr, mem, type->value_size);
   return EINA_TRUE;
}

static Eina_Bool
_tz_convert_to(const Eina_Value_Type *type EINA_UNUSED, const Eina_Value_Type *convert, const void *type_mem, void *convert_mem)
{
   struct timezone v = *(struct timezone*)type_mem;

   if (convert == EINA_VALUE_TYPE_UCHAR)
     {
        unsigned char other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_USHORT)
     {
        unsigned short other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_UINT)
     {
        unsigned int other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if ((convert == EINA_VALUE_TYPE_ULONG) || (convert == EINA_VALUE_TYPE_TIMESTAMP))
     {
        unsigned long other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_UINT64)
     {
        uint64_t other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_CHAR)
     {
        char other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_SHORT)
     {
        short other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_INT)
     {
        int other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_LONG)
     {
        long other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_INT64)
     {
        int64_t other_mem = v.tz_minuteswest;
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   else if (convert == EINA_VALUE_TYPE_FLOAT)
     return eina_value_type_pset(convert, convert_mem, &v.tz_minuteswest);
   else if (convert == EINA_VALUE_TYPE_DOUBLE)
     return eina_value_type_pset(convert, convert_mem, &v.tz_minuteswest);
   else if (convert == EINA_VALUE_TYPE_STRINGSHARE ||
            convert == EINA_VALUE_TYPE_STRING)
     {
        const char *other_mem;
        char buf[64];
        snprintf(buf, sizeof(buf), "%d", v.tz_minuteswest);
        other_mem = buf; /* required due &buf == buf */
        return eina_value_type_pset(convert, convert_mem, &other_mem);
     }
   return EINA_FALSE;
}

static Eina_Value_Type TZ_TYPE = {
   EINA_VALUE_TYPE_VERSION,
   sizeof(struct timezone),
   "struct timezone",
   _tz_setup,
   _tz_flush,
   _tz_copy,
   _tz_compare,
   _tz_convert_to,
   NULL, //No convert from
   _tz_vset,
   _tz_pset,
   _tz_pget
};

int main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
{
   Eina_Value vtv, vtz;
   struct timeval tv;
   struct timezone tz;
   char *s;

   eina_init();

   eina_value_setup(&vtv, EINA_VALUE_TYPE_TIMEVAL);
   eina_value_setup(&vtz, &TZ_TYPE);

   gettimeofday(&tv, &tz);
   eina_value_set(&vtv, tv);
   eina_value_set(&vtz, tz);

   s = eina_value_to_string(&vtv);
   printf("time: %s\n", s);
   free(s);
   s = eina_value_to_string(&vtz);
   printf("timezone: %s\n", s);
   free(s);

   eina_value_free(&vtz);
   eina_value_free(&vtv);
   eina_shutdown();
}