X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ffilter%2Ffilter-ir.hpp;fp=src%2Fcommon%2Ffilter%2Ffilter-ir.hpp;h=068d3aa5c4e5920437ed5c5b61149b046b7efbd7;hp=0000000000000000000000000000000000000000;hb=c9e313bc594f40a86eed237dce222c0fc99c957f;hpb=4878de5c7deb512bbdac4fdfc498907efa06fb7c

diff --git a/src/common/filter/filter-ir.hpp b/src/common/filter/filter-ir.hpp
new file mode 100644
index 000000000..068d3aa5c
--- /dev/null
+++ b/src/common/filter/filter-ir.hpp
@@ -0,0 +1,198 @@
+#ifndef _FILTER_IR_H
+#define _FILTER_IR_H
+
+/*
+ * filter-ir.h
+ *
+ * LTTng filter ir
+ *
+ * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#include "filter-ast.hpp"
+
+enum ir_op_signedness {
+	IR_SIGN_UNKNOWN = 0,
+	IR_SIGNED,
+	IR_UNSIGNED,
+	IR_SIGN_DYN,		/* signedness determined dynamically */
+};
+
+enum ir_data_type {
+	IR_DATA_UNKNOWN = 0,
+	IR_DATA_STRING,
+	IR_DATA_NUMERIC,	/* numeric and boolean */
+	IR_DATA_FLOAT,
+	IR_DATA_FIELD_REF,
+	IR_DATA_GET_CONTEXT_REF,
+	IR_DATA_EXPRESSION,
+};
+
+static inline
+const char *ir_data_type_str(enum ir_data_type type)
+{
+	switch (type) {
+	case IR_DATA_UNKNOWN:
+		return "IR_DATA_UNKNOWN";
+	case IR_DATA_STRING:
+		return "IR_DATA_STRING";
+	case IR_DATA_NUMERIC:
+		return "IR_DATA_NUMERIC";
+	case IR_DATA_FLOAT:
+		return "IR_DATA_FLOAT";
+	case IR_DATA_FIELD_REF:
+		return "IR_DATA_FIELD_REF";
+	case IR_DATA_GET_CONTEXT_REF:
+		return "IR_DATA_GET_CONTEXT_REF";
+	case IR_DATA_EXPRESSION:
+		return "IR_DATA_EXPRESSION";
+	default:
+		abort();
+	}
+}
+
+enum ir_op_type {
+	IR_OP_UNKNOWN = 0,
+	IR_OP_ROOT,
+	IR_OP_LOAD,
+	IR_OP_UNARY,
+	IR_OP_BINARY,
+	IR_OP_LOGICAL,
+};
+
+static inline
+const char *ir_op_type_str(enum ir_op_type type)
+{
+	switch (type) {
+	case IR_OP_UNKNOWN:
+		return "IR_OP_UNKNOWN";
+	case IR_OP_ROOT:
+		return "IR_OP_ROOT";
+	case IR_OP_LOAD:
+		return "IR_OP_LOAD";
+	case IR_OP_UNARY:
+		return "IR_OP_UNARY";
+	case IR_OP_BINARY:
+		return "IR_OP_BINARY";
+	case IR_OP_LOGICAL:
+		return "IR_OP_LOGICAL";
+	default:
+		abort();
+	}
+}
+
+/* left or right child */
+enum ir_side {
+	IR_SIDE_UNKNOWN = 0,
+	IR_LEFT,
+	IR_RIGHT,
+};
+
+enum ir_load_string_type {
+	/* Plain, no globbing at all: `hello world`. */
+	IR_LOAD_STRING_TYPE_PLAIN = 0,
+
+	/* Star at the end only: `hello *`. */
+	IR_LOAD_STRING_TYPE_GLOB_STAR_END,
+
+	/* At least one star, anywhere, but not at the end only: `he*wor*`. */
+	IR_LOAD_STRING_TYPE_GLOB_STAR,
+};
+
+struct ir_op_root {
+	struct ir_op *child;
+};
+
+enum ir_load_expression_type {
+	IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT,
+	IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT,
+	IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT,
+	IR_LOAD_EXPRESSION_GET_SYMBOL,
+	IR_LOAD_EXPRESSION_GET_INDEX,
+	IR_LOAD_EXPRESSION_LOAD_FIELD,
+};
+
+static inline
+const char *ir_load_expression_type_str(enum ir_load_expression_type type)
+{
+	switch (type) {
+	case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT:
+		return "IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT";
+	case IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT:
+		return "IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT";
+	case IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT:
+		return "IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT";
+	case IR_LOAD_EXPRESSION_GET_SYMBOL:
+		return "IR_LOAD_EXPRESSION_GET_SYMBOL";
+	case IR_LOAD_EXPRESSION_GET_INDEX:
+		return "IR_LOAD_EXPRESSION_GET_INDEX";
+	case IR_LOAD_EXPRESSION_LOAD_FIELD:
+		return "IR_LOAD_EXPRESSION_LOAD_FIELD";
+	default:
+		abort();
+	}
+}
+
+struct ir_load_expression_op {
+	struct ir_load_expression_op *next;
+	enum ir_load_expression_type type;
+	union {
+		char *symbol;
+		uint64_t index;
+	} u;
+};
+
+struct ir_load_expression {
+	struct ir_load_expression_op *child;
+};
+
+struct ir_op_load {
+	union {
+		struct {
+			enum ir_load_string_type type;
+			char *value;
+		} string;
+		int64_t num;
+		double flt;
+		char *ref;
+		struct ir_load_expression *expression;
+	} u;
+};
+
+struct ir_op_unary {
+	enum unary_op_type type;
+	struct ir_op *child;
+};
+
+struct ir_op_binary {
+	enum op_type type;
+	struct ir_op *left;
+	struct ir_op *right;
+};
+
+struct ir_op_logical {
+	enum op_type type;
+	struct ir_op *left;
+	struct ir_op *right;
+};
+
+struct ir_op {
+	/* common to all ops */
+	enum ir_op_type op;
+	enum ir_data_type data_type;
+	enum ir_op_signedness signedness;
+	enum ir_side side;
+
+	union {
+		struct ir_op_root root;
+		struct ir_op_load load;
+		struct ir_op_unary unary;
+		struct ir_op_binary binary;
+		struct ir_op_logical logical;
+	} u;
+};
+
+#endif /* _FILTER_IR_H */