Commit | Line | Data |
---|---|---|
2e7d72cf | 1 | /* |
ccd7e1c8 | 2 | * sequence.c |
2e7d72cf | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Sequence Type Converter |
2e7d72cf | 5 | * |
ccd7e1c8 | 6 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
2e7d72cf | 7 | * |
ccd7e1c8 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
2e7d72cf | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
2e7d72cf MD |
17 | */ |
18 | ||
19 | #include <babeltrace/compiler.h> | |
4c8bfb7e | 20 | #include <babeltrace/format.h> |
2e7d72cf | 21 | |
be85c1c7 MD |
22 | #ifndef max |
23 | #define max(a, b) ((a) < (b) ? (b) : (a)) | |
24 | #endif | |
25 | ||
2e7d72cf MD |
26 | void sequence_copy(struct stream_pos *dest, const struct format *fdest, |
27 | struct stream_pos *src, const struct format *fsrc, | |
28 | const struct type_class *type_class) | |
29 | { | |
30 | struct type_class_sequence *sequence_class = | |
31 | container_of(type_class, struct type_class_sequence, p); | |
32 | unsigned int i; | |
33 | size_t len; | |
34 | ||
35 | fsrc->sequence_begin(src, sequence_class); | |
36 | fdest->sequence_begin(dest, sequence_class); | |
37 | ||
38 | len = fsrc->uint_read(src, sequence_class->len_class); | |
39 | fdest->uint_write(dest, sequence_class->len_class, len); | |
40 | ||
41 | for (i = 0; i < len; i++) { | |
42 | struct type_class *elem_class = sequence_class->elem; | |
4c8bfb7e | 43 | elem_class->copy(dest, fdest, src, fsrc, elem_class); |
2e7d72cf MD |
44 | } |
45 | fsrc->sequence_end(src, sequence_class); | |
46 | fdest->sequence_end(dest, sequence_class); | |
47 | } | |
48 | ||
49 | void sequence_type_free(struct type_class_sequence *sequence_class) | |
50 | { | |
4c8bfb7e MD |
51 | sequence_class->elem->free(sequence_class->elem); |
52 | type_unref(&sequence_class->len_class->p); | |
53 | type_unref(sequence_class->elem); | |
2e7d72cf MD |
54 | g_free(sequence_class); |
55 | } | |
56 | ||
57 | static void _sequence_type_free(struct type_class *type_class) | |
58 | { | |
4c8bfb7e | 59 | struct type_class_sequence *sequence_class = |
2e7d72cf MD |
60 | container_of(type_class, struct type_class_sequence, p); |
61 | sequence_type_free(sequence_class); | |
62 | } | |
63 | ||
64 | struct type_class_sequence * | |
65 | sequence_type_new(const char *name, struct type_class_integer *len_class, | |
66 | struct type_class *elem) | |
67 | { | |
68 | struct type_class_sequence *sequence_class; | |
4c8bfb7e | 69 | struct type_class *type_class; |
2e7d72cf MD |
70 | int ret; |
71 | ||
72 | sequence_class = g_new(struct type_class_sequence, 1); | |
4c8bfb7e | 73 | type_class = &sequence_class->p; |
2e7d72cf MD |
74 | |
75 | assert(!len_class->signedness); | |
76 | ||
4c8bfb7e MD |
77 | type_ref(&len_class->p); |
78 | sequence_class->len_class = len_class; | |
79 | type_ref(elem); | |
80 | sequence_class->elem = elem; | |
2e7d72cf MD |
81 | type_class->name = g_quark_from_string(name); |
82 | type_class->alignment = max(len_class->p.alignment, | |
4c8bfb7e | 83 | elem->alignment); |
2e7d72cf MD |
84 | type_class->copy = sequence_copy; |
85 | type_class->free = _sequence_type_free; | |
4c8bfb7e | 86 | type_class->ref = 1; |
2e7d72cf MD |
87 | |
88 | if (type_class->name) { | |
be85c1c7 | 89 | ret = register_type(type_class); |
2e7d72cf MD |
90 | if (ret) |
91 | goto error_register; | |
92 | } | |
93 | return sequence_class; | |
94 | ||
95 | error_register: | |
4c8bfb7e MD |
96 | type_unref(&len_class->p); |
97 | type_unref(elem); | |
2e7d72cf MD |
98 | g_free(sequence_class); |
99 | return NULL; | |
100 | } |