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953192ba MD |
1 | #ifndef _FILTER_IR_H |
2 | #define _FILTER_IR_H | |
3 | ||
4 | /* | |
5 | * filter-ir.h | |
6 | * | |
7 | * LTTng filter ir | |
8 | * | |
ab5be9fa | 9 | * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
953192ba | 10 | * |
ab5be9fa | 11 | * SPDX-License-Identifier: LGPL-2.1-only |
953192ba | 12 | * |
953192ba MD |
13 | */ |
14 | ||
15 | #include "filter-ast.h" | |
16 | ||
17 | enum ir_op_signedness { | |
18 | IR_SIGN_UNKNOWN = 0, | |
19 | IR_SIGNED, | |
20 | IR_UNSIGNED, | |
21 | IR_SIGN_DYN, /* signedness determined dynamically */ | |
22 | }; | |
23 | ||
24 | enum ir_data_type { | |
25 | IR_DATA_UNKNOWN = 0, | |
26 | IR_DATA_STRING, | |
27 | IR_DATA_NUMERIC, /* numeric and boolean */ | |
e90d8561 | 28 | IR_DATA_FLOAT, |
953192ba | 29 | IR_DATA_FIELD_REF, |
586dc72f | 30 | IR_DATA_GET_CONTEXT_REF, |
bff988fa | 31 | IR_DATA_EXPRESSION, |
953192ba MD |
32 | }; |
33 | ||
34 | enum ir_op_type { | |
35 | IR_OP_UNKNOWN = 0, | |
36 | IR_OP_ROOT, | |
37 | IR_OP_LOAD, | |
38 | IR_OP_UNARY, | |
39 | IR_OP_BINARY, | |
40 | IR_OP_LOGICAL, | |
41 | }; | |
42 | ||
43 | /* left or right child */ | |
44 | enum ir_side { | |
45 | IR_SIDE_UNKNOWN = 0, | |
46 | IR_LEFT, | |
47 | IR_RIGHT, | |
48 | }; | |
49 | ||
9f449915 PP |
50 | enum ir_load_string_type { |
51 | /* Plain, no globbing at all: `hello world`. */ | |
52 | IR_LOAD_STRING_TYPE_PLAIN = 0, | |
53 | ||
54 | /* Star at the end only: `hello *`. */ | |
55 | IR_LOAD_STRING_TYPE_GLOB_STAR_END, | |
56 | ||
57 | /* At least one star, anywhere, but not at the end only: `he*wor*`. */ | |
58 | IR_LOAD_STRING_TYPE_GLOB_STAR, | |
59 | }; | |
60 | ||
953192ba MD |
61 | struct ir_op_root { |
62 | struct ir_op *child; | |
63 | }; | |
64 | ||
bff988fa MD |
65 | enum ir_load_expression_type { |
66 | IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT, | |
67 | IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT, | |
68 | IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT, | |
69 | IR_LOAD_EXPRESSION_GET_SYMBOL, | |
70 | IR_LOAD_EXPRESSION_GET_INDEX, | |
71 | IR_LOAD_EXPRESSION_LOAD_FIELD, | |
72 | }; | |
73 | ||
74 | struct ir_load_expression_op { | |
75 | struct ir_load_expression_op *next; | |
76 | enum ir_load_expression_type type; | |
77 | union { | |
78 | char *symbol; | |
79 | uint64_t index; | |
80 | } u; | |
81 | }; | |
82 | ||
83 | struct ir_load_expression { | |
84 | struct ir_load_expression_op *child; | |
85 | }; | |
86 | ||
953192ba MD |
87 | struct ir_op_load { |
88 | union { | |
9f449915 PP |
89 | struct { |
90 | enum ir_load_string_type type; | |
91 | char *value; | |
92 | } string; | |
953192ba | 93 | int64_t num; |
e90d8561 | 94 | double flt; |
953192ba | 95 | char *ref; |
bff988fa | 96 | struct ir_load_expression *expression; |
953192ba MD |
97 | } u; |
98 | }; | |
99 | ||
100 | struct ir_op_unary { | |
101 | enum unary_op_type type; | |
102 | struct ir_op *child; | |
103 | }; | |
104 | ||
105 | struct ir_op_binary { | |
106 | enum op_type type; | |
107 | struct ir_op *left; | |
108 | struct ir_op *right; | |
109 | }; | |
110 | ||
111 | struct ir_op_logical { | |
112 | enum op_type type; | |
113 | struct ir_op *left; | |
114 | struct ir_op *right; | |
115 | }; | |
116 | ||
117 | struct ir_op { | |
118 | /* common to all ops */ | |
119 | enum ir_op_type op; | |
120 | enum ir_data_type data_type; | |
121 | enum ir_op_signedness signedness; | |
122 | enum ir_side side; | |
123 | ||
124 | union { | |
125 | struct ir_op_root root; | |
126 | struct ir_op_load load; | |
127 | struct ir_op_unary unary; | |
128 | struct ir_op_binary binary; | |
129 | struct ir_op_logical logical; | |
130 | } u; | |
131 | }; | |
132 | ||
133 | #endif /* _FILTER_IR_H */ |