[lttng-tools.git] / src / common / filter / filter-ir.hpp

#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"

#include <cstdlib>

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 */
Commit	Line	Data
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	*/
953192ba MD	14
c9e313bc	15	#include "filter-ast.hpp"
953192ba	16
3d667147 JG	17	#include <cstdlib>
3d667147 JG	18
953192ba MD	19	enum ir_op_signedness {
	20	IR_SIGN_UNKNOWN = 0,
	21	IR_SIGNED,
	22	IR_UNSIGNED,
	23	IR_SIGN_DYN, /* signedness determined dynamically */
	24	};
	25
	26	enum ir_data_type {
	27	IR_DATA_UNKNOWN = 0,
	28	IR_DATA_STRING,
	29	IR_DATA_NUMERIC, /* numeric and boolean */
e90d8561	30	IR_DATA_FLOAT,
953192ba	31	IR_DATA_FIELD_REF,
586dc72f	32	IR_DATA_GET_CONTEXT_REF,
bff988fa	33	IR_DATA_EXPRESSION,
953192ba MD	34	};
953192ba MD	35
20a01d15 SM	36	static inline
	37	const char *ir_data_type_str(enum ir_data_type type)
	38	{
	39	switch (type) {
	40	case IR_DATA_UNKNOWN:
	41	return "IR_DATA_UNKNOWN";
	42	case IR_DATA_STRING:
	43	return "IR_DATA_STRING";
	44	case IR_DATA_NUMERIC:
	45	return "IR_DATA_NUMERIC";
	46	case IR_DATA_FLOAT:
	47	return "IR_DATA_FLOAT";
	48	case IR_DATA_FIELD_REF:
	49	return "IR_DATA_FIELD_REF";
	50	case IR_DATA_GET_CONTEXT_REF:
	51	return "IR_DATA_GET_CONTEXT_REF";
	52	case IR_DATA_EXPRESSION:
	53	return "IR_DATA_EXPRESSION";
	54	default:
	55	abort();
	56	}
	57	}
	58
953192ba MD	59	enum ir_op_type {
	60	IR_OP_UNKNOWN = 0,
	61	IR_OP_ROOT,
	62	IR_OP_LOAD,
	63	IR_OP_UNARY,
	64	IR_OP_BINARY,
	65	IR_OP_LOGICAL,
	66	};
	67
20a01d15 SM	68	static inline
	69	const char *ir_op_type_str(enum ir_op_type type)
	70	{
	71	switch (type) {
	72	case IR_OP_UNKNOWN:
	73	return "IR_OP_UNKNOWN";
	74	case IR_OP_ROOT:
	75	return "IR_OP_ROOT";
	76	case IR_OP_LOAD:
	77	return "IR_OP_LOAD";
	78	case IR_OP_UNARY:
	79	return "IR_OP_UNARY";
	80	case IR_OP_BINARY:
	81	return "IR_OP_BINARY";
	82	case IR_OP_LOGICAL:
	83	return "IR_OP_LOGICAL";
	84	default:
	85	abort();
	86	}
	87	}
	88
953192ba MD	89	/* left or right child */
	90	enum ir_side {
	91	IR_SIDE_UNKNOWN = 0,
	92	IR_LEFT,
	93	IR_RIGHT,
	94	};
	95
9f449915 PP	96	enum ir_load_string_type {
	97	/* Plain, no globbing at all: `hello world`. */
	98	IR_LOAD_STRING_TYPE_PLAIN = 0,
	99
	100	/* Star at the end only: `hello `. /
	101	IR_LOAD_STRING_TYPE_GLOB_STAR_END,
	102
	103	/* At least one star, anywhere, but not at the end only: `hewor`. */
	104	IR_LOAD_STRING_TYPE_GLOB_STAR,
	105	};
	106
953192ba MD	107	struct ir_op_root {
	108	struct ir_op *child;
	109	};
	110
bff988fa MD	111	enum ir_load_expression_type {
	112	IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT,
	113	IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT,
	114	IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT,
	115	IR_LOAD_EXPRESSION_GET_SYMBOL,
	116	IR_LOAD_EXPRESSION_GET_INDEX,
	117	IR_LOAD_EXPRESSION_LOAD_FIELD,
	118	};
	119
20a01d15 SM	120	static inline
	121	const char *ir_load_expression_type_str(enum ir_load_expression_type type)
	122	{
	123	switch (type) {
	124	case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT:
	125	return "IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT";
	126	case IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT:
	127	return "IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT";
	128	case IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT:
	129	return "IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT";
	130	case IR_LOAD_EXPRESSION_GET_SYMBOL:
	131	return "IR_LOAD_EXPRESSION_GET_SYMBOL";
	132	case IR_LOAD_EXPRESSION_GET_INDEX:
	133	return "IR_LOAD_EXPRESSION_GET_INDEX";
	134	case IR_LOAD_EXPRESSION_LOAD_FIELD:
	135	return "IR_LOAD_EXPRESSION_LOAD_FIELD";
	136	default:
	137	abort();
	138	}
	139	}
	140
bff988fa MD	141	struct ir_load_expression_op {
	142	struct ir_load_expression_op *next;
	143	enum ir_load_expression_type type;
	144	union {
	145	char *symbol;
	146	uint64_t index;
	147	} u;
	148	};
	149
	150	struct ir_load_expression {
	151	struct ir_load_expression_op *child;
	152	};
	153
953192ba MD	154	struct ir_op_load {
953192ba MD	155	union {
9f449915 PP	156	struct {
	157	enum ir_load_string_type type;
	158	char *value;
	159	} string;
953192ba	160	int64_t num;
e90d8561	161	double flt;
953192ba	162	char *ref;
bff988fa	163	struct ir_load_expression *expression;
953192ba MD	164	} u;
	165	};
	166
	167	struct ir_op_unary {
	168	enum unary_op_type type;
	169	struct ir_op *child;
	170	};
	171
	172	struct ir_op_binary {
	173	enum op_type type;
	174	struct ir_op *left;
	175	struct ir_op *right;
	176	};
	177
	178	struct ir_op_logical {
	179	enum op_type type;
	180	struct ir_op *left;
	181	struct ir_op *right;
	182	};
	183
	184	struct ir_op {
	185	/* common to all ops */
	186	enum ir_op_type op;
	187	enum ir_data_type data_type;
	188	enum ir_op_signedness signedness;
	189	enum ir_side side;
	190
	191	union {
	192	struct ir_op_root root;
	193	struct ir_op_load load;
	194	struct ir_op_unary unary;
	195	struct ir_op_binary binary;
	196	struct ir_op_logical logical;
	197	} u;
	198	};
	199
	200	#endif /* _FILTER_IR_H */