[lttng-tools.git] / src / lib / lttng-ctl / filter / filter-ir.h

#ifndef _FILTER_IR_H
#define _FILTER_IR_H

/*
 * filter-ir.h
 *
 * LTTng filter ir
 *
 * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License, version 2.1 only,
 * as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "filter-ast.h"

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_FIELD_REF_INDEX,
	IR_DATA_GET_CONTEXT_REF_INDEX,
};

enum ir_op_type {
	IR_OP_UNKNOWN = 0,
	IR_OP_ROOT,
	IR_OP_LOAD,
	IR_OP_UNARY,
	IR_OP_BINARY,
	IR_OP_LOGICAL,
};

/* 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;
};

struct ir_op_load {
	union {
		struct {
			enum ir_load_string_type type;
			char *value;
		} string;
		int64_t num;
		double flt;
		char *ref;
		struct {
			char *symbol;
			uint64_t index;
		} ref_index;
	} 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	*
	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 */
e90d8561	38	IR_DATA_FLOAT,
953192ba	39	IR_DATA_FIELD_REF,
586dc72f	40	IR_DATA_GET_CONTEXT_REF,
661dfdd1 MD	41	IR_DATA_FIELD_REF_INDEX,
661dfdd1 MD	42	IR_DATA_GET_CONTEXT_REF_INDEX,
953192ba MD	43	};
	44
	45	enum ir_op_type {
	46	IR_OP_UNKNOWN = 0,
	47	IR_OP_ROOT,
	48	IR_OP_LOAD,
	49	IR_OP_UNARY,
	50	IR_OP_BINARY,
	51	IR_OP_LOGICAL,
	52	};
	53
	54	/* left or right child */
	55	enum ir_side {
	56	IR_SIDE_UNKNOWN = 0,
	57	IR_LEFT,
	58	IR_RIGHT,
	59	};
	60
9f449915 PP	61	enum ir_load_string_type {
	62	/* Plain, no globbing at all: `hello world`. */
	63	IR_LOAD_STRING_TYPE_PLAIN = 0,
	64
	65	/* Star at the end only: `hello `. /
	66	IR_LOAD_STRING_TYPE_GLOB_STAR_END,
	67
	68	/* At least one star, anywhere, but not at the end only: `hewor`. */
	69	IR_LOAD_STRING_TYPE_GLOB_STAR,
	70	};
	71
953192ba MD	72	struct ir_op_root {
	73	struct ir_op *child;
	74	};
	75
	76	struct ir_op_load {
	77	union {
9f449915 PP	78	struct {
	79	enum ir_load_string_type type;
	80	char *value;
	81	} string;
953192ba	82	int64_t num;
e90d8561	83	double flt;
953192ba	84	char *ref;
661dfdd1 MD	85	struct {
	86	char *symbol;
	87	uint64_t index;
	88	} ref_index;
953192ba MD	89	} u;
	90	};
	91
	92	struct ir_op_unary {
	93	enum unary_op_type type;
	94	struct ir_op *child;
	95	};
	96
	97	struct ir_op_binary {
	98	enum op_type type;
	99	struct ir_op *left;
	100	struct ir_op *right;
	101	};
	102
	103	struct ir_op_logical {
	104	enum op_type type;
	105	struct ir_op *left;
	106	struct ir_op *right;
	107	};
	108
	109	struct ir_op {
	110	/* common to all ops */
	111	enum ir_op_type op;
	112	enum ir_data_type data_type;
	113	enum ir_op_signedness signedness;
	114	enum ir_side side;
	115
	116	union {
	117	struct ir_op_root root;
	118	struct ir_op_load load;
	119	struct ir_op_unary unary;
	120	struct ir_op_binary binary;
	121	struct ir_op_logical logical;
	122	} u;
	123	};
	124
	125	#endif /* _FILTER_IR_H */