| 1 | #ifndef _FILTER_IR_H |
| 2 | #define _FILTER_IR_H |
| 3 | |
| 4 | /* |
| 5 | * filter-ir.h |
| 6 | * |
| 7 | * LTTng filter ir |
| 8 | * |
| 9 | * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 10 | * |
| 11 | * This library is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU Lesser General Public License, version 2.1 only, |
| 13 | * as published by the Free Software Foundation. |
| 14 | * |
| 15 | * This library is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * Lesser General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU Lesser General Public License |
| 21 | * along with this library; if not, write to the Free Software Foundation, |
| 22 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 23 | */ |
| 24 | |
| 25 | #include "filter-ast.h" |
| 26 | |
| 27 | enum ir_op_signedness { |
| 28 | IR_SIGN_UNKNOWN = 0, |
| 29 | IR_SIGNED, |
| 30 | IR_UNSIGNED, |
| 31 | IR_SIGN_DYN, /* signedness determined dynamically */ |
| 32 | }; |
| 33 | |
| 34 | enum ir_data_type { |
| 35 | IR_DATA_UNKNOWN = 0, |
| 36 | IR_DATA_STRING, |
| 37 | IR_DATA_NUMERIC, /* numeric and boolean */ |
| 38 | IR_DATA_FLOAT, |
| 39 | IR_DATA_FIELD_REF, |
| 40 | }; |
| 41 | |
| 42 | enum ir_op_type { |
| 43 | IR_OP_UNKNOWN = 0, |
| 44 | IR_OP_ROOT, |
| 45 | IR_OP_LOAD, |
| 46 | IR_OP_UNARY, |
| 47 | IR_OP_BINARY, |
| 48 | IR_OP_LOGICAL, |
| 49 | }; |
| 50 | |
| 51 | /* left or right child */ |
| 52 | enum ir_side { |
| 53 | IR_SIDE_UNKNOWN = 0, |
| 54 | IR_LEFT, |
| 55 | IR_RIGHT, |
| 56 | }; |
| 57 | |
| 58 | struct ir_op_root { |
| 59 | struct ir_op *child; |
| 60 | }; |
| 61 | |
| 62 | struct ir_op_load { |
| 63 | union { |
| 64 | char *string; |
| 65 | int64_t num; |
| 66 | double flt; |
| 67 | char *ref; |
| 68 | } u; |
| 69 | }; |
| 70 | |
| 71 | struct ir_op_unary { |
| 72 | enum unary_op_type type; |
| 73 | struct ir_op *child; |
| 74 | }; |
| 75 | |
| 76 | struct ir_op_binary { |
| 77 | enum op_type type; |
| 78 | struct ir_op *left; |
| 79 | struct ir_op *right; |
| 80 | }; |
| 81 | |
| 82 | struct ir_op_logical { |
| 83 | enum op_type type; |
| 84 | struct ir_op *left; |
| 85 | struct ir_op *right; |
| 86 | }; |
| 87 | |
| 88 | struct ir_op { |
| 89 | /* common to all ops */ |
| 90 | enum ir_op_type op; |
| 91 | enum ir_data_type data_type; |
| 92 | enum ir_op_signedness signedness; |
| 93 | enum ir_side side; |
| 94 | |
| 95 | union { |
| 96 | struct ir_op_root root; |
| 97 | struct ir_op_load load; |
| 98 | struct ir_op_unary unary; |
| 99 | struct ir_op_binary binary; |
| 100 | struct ir_op_logical logical; |
| 101 | } u; |
| 102 | }; |
| 103 | |
| 104 | #endif /* _FILTER_IR_H */ |