[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_EXPRESSION,
};

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;
};

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,
};

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	*
	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,
bff988fa	41	IR_DATA_EXPRESSION,
953192ba MD	42	};
	43
	44	enum ir_op_type {
	45	IR_OP_UNKNOWN = 0,
	46	IR_OP_ROOT,
	47	IR_OP_LOAD,
	48	IR_OP_UNARY,
	49	IR_OP_BINARY,
	50	IR_OP_LOGICAL,
	51	};
	52
	53	/* left or right child */
	54	enum ir_side {
	55	IR_SIDE_UNKNOWN = 0,
	56	IR_LEFT,
	57	IR_RIGHT,
	58	};
	59
9f449915 PP	60	enum ir_load_string_type {
	61	/* Plain, no globbing at all: `hello world`. */
	62	IR_LOAD_STRING_TYPE_PLAIN = 0,
	63
	64	/* Star at the end only: `hello `. /
	65	IR_LOAD_STRING_TYPE_GLOB_STAR_END,
	66
	67	/* At least one star, anywhere, but not at the end only: `hewor`. */
	68	IR_LOAD_STRING_TYPE_GLOB_STAR,
	69	};
	70
953192ba MD	71	struct ir_op_root {
	72	struct ir_op *child;
	73	};
	74
bff988fa MD	75	enum ir_load_expression_type {
	76	IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT,
	77	IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT,
	78	IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT,
	79	IR_LOAD_EXPRESSION_GET_SYMBOL,
	80	IR_LOAD_EXPRESSION_GET_INDEX,
	81	IR_LOAD_EXPRESSION_LOAD_FIELD,
	82	};
	83
	84	struct ir_load_expression_op {
	85	struct ir_load_expression_op *next;
	86	enum ir_load_expression_type type;
	87	union {
	88	char *symbol;
	89	uint64_t index;
	90	} u;
	91	};
	92
	93	struct ir_load_expression {
	94	struct ir_load_expression_op *child;
	95	};
	96
953192ba MD	97	struct ir_op_load {
953192ba MD	98	union {
9f449915 PP	99	struct {
	100	enum ir_load_string_type type;
	101	char *value;
	102	} string;
953192ba	103	int64_t num;
e90d8561	104	double flt;
953192ba	105	char *ref;
bff988fa	106	struct ir_load_expression *expression;
953192ba MD	107	} u;
	108	};
	109
	110	struct ir_op_unary {
	111	enum unary_op_type type;
	112	struct ir_op *child;
	113	};
	114
	115	struct ir_op_binary {
	116	enum op_type type;
	117	struct ir_op *left;
	118	struct ir_op *right;
	119	};
	120
	121	struct ir_op_logical {
	122	enum op_type type;
	123	struct ir_op *left;
	124	struct ir_op *right;
	125	};
	126
	127	struct ir_op {
	128	/* common to all ops */
	129	enum ir_op_type op;
	130	enum ir_data_type data_type;
	131	enum ir_op_signedness signedness;
	132	enum ir_side side;
	133
	134	union {
	135	struct ir_op_root root;
	136	struct ir_op_load load;
	137	struct ir_op_unary unary;
	138	struct ir_op_binary binary;
	139	struct ir_op_logical logical;
	140	} u;
	141	};
	142
	143	#endif /* _FILTER_IR_H */