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24a3136a DS |
1 | /* |
2 | * python-complements.c | |
3 | * | |
4 | * Babeltrace Python module complements, required for Python bindings | |
5 | * | |
6 | * Copyright 2012 EfficiOS Inc. | |
7 | * | |
8 | * Author: Danny Serres <danny.serres@efficios.com> | |
9 | * | |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | */ | |
20 | ||
21 | #include "python-complements.h" | |
22 | ||
23 | /* FILE functions | |
24 | ---------------------------------------------------- | |
25 | */ | |
26 | ||
27 | FILE *_bt_file_open(char *file_path, char *mode) | |
28 | { | |
29 | FILE *fp = stdout; | |
30 | if (file_path != NULL) | |
31 | fp = fopen(file_path, mode); | |
32 | return fp; | |
33 | } | |
34 | ||
35 | void _bt_file_close(FILE *fp) | |
36 | { | |
37 | if (fp != NULL) | |
38 | fclose(fp); | |
39 | } | |
40 | ||
41 | ||
42 | /* List-related functions | |
43 | ---------------------------------------------------- | |
44 | */ | |
45 | ||
46 | /* ctf-field-list */ | |
2c0df204 | 47 | struct bt_definition **_bt_python_field_listcaller( |
24a3136a | 48 | const struct bt_ctf_event *ctf_event, |
2c0df204 | 49 | const struct bt_definition *scope) |
24a3136a | 50 | { |
2c0df204 | 51 | struct bt_definition **list; |
24a3136a DS |
52 | unsigned int count; |
53 | int ret; | |
54 | ||
55 | ret = bt_ctf_get_field_list(ctf_event, scope, | |
2c0df204 | 56 | (const struct bt_definition * const **)&list, &count); |
24a3136a DS |
57 | |
58 | if (ret < 0) /* For python to know an error occured */ | |
59 | list = NULL; | |
60 | else /* For python to know the end is reached */ | |
61 | list[count] = NULL; | |
62 | ||
63 | return list; | |
64 | } | |
65 | ||
2c0df204 XH |
66 | struct bt_definition *_bt_python_field_one_from_list( |
67 | struct bt_definition **list, int index) | |
24a3136a DS |
68 | { |
69 | return list[index]; | |
70 | } | |
71 | ||
72 | /* event_decl_list */ | |
73 | struct bt_ctf_event_decl **_bt_python_event_decl_listcaller( | |
74 | int handle_id, struct bt_context *ctx) | |
75 | { | |
76 | struct bt_ctf_event_decl **list; | |
77 | unsigned int count; | |
78 | int ret; | |
79 | ||
80 | ret = bt_ctf_get_event_decl_list(handle_id, ctx, | |
81 | (struct bt_ctf_event_decl * const **)&list, &count); | |
82 | ||
83 | if (ret < 0) /* For python to know an error occured */ | |
84 | list = NULL; | |
85 | else /* For python to know the end is reached */ | |
86 | list[count] = NULL; | |
87 | ||
88 | return list; | |
89 | } | |
90 | ||
91 | struct bt_ctf_event_decl *_bt_python_decl_one_from_list( | |
92 | struct bt_ctf_event_decl **list, int index) | |
93 | { | |
94 | return list[index]; | |
95 | } | |
96 | ||
97 | /* decl_fields */ | |
98 | struct bt_ctf_field_decl **_by_python_field_decl_listcaller( | |
99 | struct bt_ctf_event_decl *event_decl, | |
100 | enum bt_ctf_scope scope) | |
101 | { | |
102 | struct bt_ctf_field_decl **list; | |
103 | unsigned int count; | |
104 | int ret; | |
105 | ||
106 | ret = bt_ctf_get_decl_fields(event_decl, scope, | |
107 | (const struct bt_ctf_field_decl * const **)&list, &count); | |
108 | ||
109 | if (ret < 0) /* For python to know an error occured */ | |
110 | list = NULL; | |
111 | else /* For python to know the end is reached */ | |
112 | list[count] = NULL; | |
113 | ||
114 | return list; | |
115 | } | |
116 | ||
117 | struct bt_ctf_field_decl *_bt_python_field_decl_one_from_list( | |
118 | struct bt_ctf_field_decl **list, int index) | |
119 | { | |
120 | return list[index]; | |
121 | } | |
3c2ce778 XH |
122 | |
123 | struct definition_array *_bt_python_get_array_from_def( | |
124 | struct bt_definition *field) | |
125 | { | |
126 | const struct bt_declaration *array_decl; | |
127 | struct definition_array *array = NULL; | |
128 | ||
129 | if (!field) { | |
130 | goto end; | |
131 | } | |
132 | ||
133 | array_decl = bt_ctf_get_decl_from_def(field); | |
134 | if (bt_ctf_field_type(array_decl) == CTF_TYPE_ARRAY) { | |
135 | array = container_of(field, struct definition_array, p); | |
136 | } | |
137 | end: | |
138 | return array; | |
139 | } | |
786207e0 XH |
140 | |
141 | struct definition_sequence *_bt_python_get_sequence_from_def( | |
142 | struct bt_definition *field) | |
143 | { | |
144 | if (field && bt_ctf_field_type( | |
145 | bt_ctf_get_decl_from_def(field)) == CTF_TYPE_SEQUENCE) { | |
146 | return container_of(field, struct definition_sequence, p); | |
147 | } | |
148 | ||
149 | return NULL; | |
150 | } |