Commit | Line | Data |
---|---|---|
2e7d72cf | 1 | /* |
ccd7e1c8 | 2 | * sequence.c |
2e7d72cf | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Sequence Type Converter |
2e7d72cf | 5 | * |
c054553d | 6 | * Copyright 2010, 2011 - 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 | ||
c054553d | 26 | static |
e19c3d69 MD |
27 | struct declaration *_sequence_declaration_new(struct type *type, |
28 | struct declaration_scope *parent_scope); | |
c054553d | 29 | static |
e19c3d69 | 30 | void _sequence_declaration_free(struct declaration *declaration); |
c054553d | 31 | |
2e7d72cf MD |
32 | void sequence_copy(struct stream_pos *dest, const struct format *fdest, |
33 | struct stream_pos *src, const struct format *fsrc, | |
e19c3d69 | 34 | struct declaration *declaration) |
2e7d72cf | 35 | { |
e19c3d69 MD |
36 | struct declaration_sequence *sequence = |
37 | container_of(declaration, struct declaration_sequence, p); | |
38 | struct type_sequence *sequence_type = sequence->type; | |
c054553d | 39 | uint64_t i; |
2e7d72cf | 40 | |
e19c3d69 MD |
41 | fsrc->sequence_begin(src, sequence_type); |
42 | fdest->sequence_begin(dest, sequence_type); | |
2e7d72cf | 43 | |
e19c3d69 MD |
44 | sequence->len->p.type->copy(dest, fdest, src, fsrc, |
45 | &sequence->len->p); | |
2e7d72cf | 46 | |
c054553d | 47 | for (i = 0; i < sequence->len->value._unsigned; i++) { |
e19c3d69 MD |
48 | struct declaration *elem_type = |
49 | sequence->current_element.declaration; | |
50 | elem_type->p.type->copy(dest, fdest, src, fsrc, elem_type); | |
2e7d72cf | 51 | } |
e19c3d69 MD |
52 | fsrc->sequence_end(src, sequence_type); |
53 | fdest->sequence_end(dest, sequence_type); | |
2e7d72cf MD |
54 | } |
55 | ||
c054553d | 56 | static |
e19c3d69 | 57 | void _sequence_type_free(struct type *type) |
2e7d72cf | 58 | { |
e19c3d69 MD |
59 | struct type_sequence *sequence_type = |
60 | container_of(type, struct type_sequence, p); | |
c054553d | 61 | |
e19c3d69 MD |
62 | type_unref(&sequence_type->len_type->p); |
63 | type_unref(sequence_type->elem); | |
64 | g_free(sequence_type); | |
2e7d72cf MD |
65 | } |
66 | ||
e19c3d69 MD |
67 | struct type_sequence * |
68 | sequence_type_new(const char *name, struct type_integer *len_type, | |
69 | struct type *elem_type) | |
2e7d72cf | 70 | { |
e19c3d69 MD |
71 | struct type_sequence *sequence_type; |
72 | struct type *type; | |
2e7d72cf MD |
73 | int ret; |
74 | ||
e19c3d69 MD |
75 | sequence_type = g_new(struct type_sequence, 1); |
76 | type = &sequence_type->p; | |
77 | assert(!len_type->signedness); | |
78 | type_ref(&len_type->p); | |
79 | sequence_type->len_type = len_type; | |
80 | type_ref(elem_type); | |
81 | sequence_type->elem = elem_type; | |
82 | type->name = g_quark_from_string(name); | |
83 | type->alignment = max(len_type->p.alignment, elem_type->alignment); | |
84 | type->copy = sequence_copy; | |
85 | type->type_free = _sequence_type_free; | |
86 | type->declaration_new = _sequence_declaration_new; | |
87 | type->declaration_free = _sequence_declaration_free; | |
88 | type->ref = 1; | |
89 | ||
90 | if (type->name) { | |
91 | ret = register_type(type); | |
2e7d72cf MD |
92 | if (ret) |
93 | goto error_register; | |
94 | } | |
e19c3d69 | 95 | return sequence_type; |
2e7d72cf MD |
96 | |
97 | error_register: | |
e19c3d69 MD |
98 | type_unref(&len_type->p); |
99 | type_unref(elem_type); | |
100 | g_free(sequence_type); | |
2e7d72cf MD |
101 | return NULL; |
102 | } | |
c054553d MD |
103 | |
104 | static | |
e19c3d69 | 105 | struct declaration *_sequence_declaration_new(struct type *type, |
c054553d MD |
106 | struct declaration_scope *parent_scope) |
107 | { | |
e19c3d69 MD |
108 | struct type_sequence *sequence_type = |
109 | container_of(type, struct type_sequence, p); | |
110 | struct declaration_sequence *sequence; | |
111 | struct declaration *len_parent; | |
c054553d | 112 | |
e19c3d69 MD |
113 | sequence = g_new(struct declaration_sequence, 1); |
114 | type_ref(&sequence_type->p); | |
115 | sequence->p.type = sequence_type; | |
c054553d MD |
116 | sequence->p.ref = 1; |
117 | sequence->scope = new_declaration_scope(parent_scope); | |
e19c3d69 MD |
118 | len_parent = |
119 | sequence_type->len_type.p->type_new(&sequence_type->len_type.p, | |
120 | parent_scope); | |
121 | sequence->len = | |
122 | container_of(len_parent, struct declaration_integer, p); | |
123 | sequence->current_element.declaration = | |
124 | sequence_type->elem.p->type_new(&sequence_type->elem.p, | |
125 | parent_scope); | |
c054553d MD |
126 | return &sequence->p; |
127 | } | |
128 | ||
129 | static | |
e19c3d69 | 130 | void _sequence_declaration_free(struct declaration *declaration) |
c054553d MD |
131 | { |
132 | struct type_sequence *sequence = | |
e19c3d69 MD |
133 | container_of(declaration, struct type_sequence, p); |
134 | struct declaration *len_declaration = sequence->len; | |
135 | struct declaration *elem_declaration = | |
136 | sequence->current_element.declaration; | |
c054553d | 137 | |
e19c3d69 MD |
138 | len_declaration->p.type->declaration_free(len_declaration); |
139 | elem_declaration->p.type->declaration_free(elem_declaration); | |
c054553d | 140 | free_declaration_scope(sequence->scope); |
e19c3d69 | 141 | type_unref(sequence->p.type); |
c054553d MD |
142 | g_free(sequence); |
143 | } |