#include <ltt/event.h>
-/* A filter expression consists in nested AND, OR and NOT expressions
+/*
+ A filter expression consists in nested AND, OR and NOT expressions
involving boolean relation (>, >=, =, !=, <, <=) between event fields and
specific values. It is compiled into an efficient data structure which
is used in functions to check if a given event or tracefile satisfies the
fieldComponent = name [ "[" integer "]" ]
value = integer | double | string
-
*/
+/**
+ * @enum LttvStructType
+ * @brief The lttv structures
+ *
+ * the LttvStructType enumerates
+ * the possible structures for the
+ * lttv core filter
+ */
+enum _LttvStructType {
+ LTTV_FILTER_TRACE,
+ LTTV_FILTER_TRACESET,
+ LTTV_FILTER_TRACEFILE,
+ LTTV_FILTER_EVENT,
+ LTTV_FILTER_STATE
+} LttvStructType;
+
/**
* @enum LttvFieldType
- * @brief Structures and their fields
+ * @brief Possible fields for the structures
*
* the LttvFieldType enum consists on
* all the hardcoded structures and
* filters can be applied.
*/
enum _LttvFieldType {
- LTTV_FILTER_TRACE,
- LTTV_FILTER_TRACESET,
- LTTV_FILTER_TRACEFILE,
- LTTV_FILTER_STATE,
- LTTV_FILTER_EVENT,
- LTTV_FILTER_NAME,
- LTTV_FILTER_CATEGORY,
- LTTV_FILTER_TIME,
- LTTV_FILTER_TSC,
- LTTV_FILTER_PID,
- LTTV_FILTER_PPID,
- LTTV_FILTER_C_TIME,
- LTTV_FILTER_I_TIME,
- LTTV_FILTER_P_NAME,
- LTTV_FILTER_EX_MODE,
- LTTV_FILTER_EX_SUBMODE,
- LTTV_FILTER_P_STATUS,
- LTTV_FILTER_CPU
+ LTTV_FILTER_TRACE_NAME, /** trace.name (char*) */
+ LTTV_FILTER_TRACEFILE_NAME, /** tracefile.name (char*) */
+ LTTV_FILTER_STATE_PID, /** state.pid (guint) */
+ LTTV_FILTER_STATE_PPID, /** state.ppid (guint) */
+ LTTV_FILTER_STATE_CT, /** state.creation_time (double) */
+ LTTV_FILTER_STATE_IT, /** state.insertion_time (double) */
+ LTTV_FILTER_STATE_P_NAME, /** state.process_name (char*) */
+ LTTV_FILTER_STATE_EX_MODE, /** state.execution_mode (LttvExecutionMode) */
+ LTTV_FILTER_STATE_EX_SUBMODE, /** state.execution_submode (LttvExecutionSubmode) */
+ LTTV_FILTER_STATE_P_STATUS, /** state.process_status (LttvProcessStatus) */
+ LTTV_FILTER_STATE_CPU, /** state.cpu (?last_cpu?) */
+ LTTV_FILTER_EVENT_NAME, /** event.name (char*) */
+ LTTV_FILTER_EVENT_CATEGORY, /** FIXME: not implemented */
+ LTTV_FILTER_EVENT_TIME, /** event.time (double) */
+ LTTV_FILTER_EVENT_TSC, /** event.tsc (double) */
+ LTTV_FILTER_EVENT_FIELD,
+ LTTV_FILTER_UNDEFINED /** undefined field */
} LttvFieldType;
/**
* @enum LttvExpressionOp
+ * @brief Contains possible operators
+ *
+ * This enumeration defines the
+ * possible operator used to compare
+ * right and left member in simple
+ * expression
*/
typedef enum _LttvExpressionOp
{
- LTTV_FIELD_EQ, /** equal */
- LTTV_FIELD_NE, /** not equal */
- LTTV_FIELD_LT, /** lower than */
- LTTV_FIELD_LE, /** lower or equal */
- LTTV_FIELD_GT, /** greater than */
- LTTV_FIELD_GE /** greater or equal */
+ LTTV_FIELD_EQ, /** equal */
+ LTTV_FIELD_NE, /** not equal */
+ LTTV_FIELD_LT, /** lower than */
+ LTTV_FIELD_LE, /** lower or equal */
+ LTTV_FIELD_GT, /** greater than */
+ LTTV_FIELD_GE /** greater or equal */
} LttvExpressionOp;
+/**
+ * @union LttvFieldValue
+ *
+ * @brief Contains possible field values
+ * This particular union defines the
+ * possible set of values taken by the
+ * right member of a simple expression.
+ * It is used for comparison whithin the
+ * 'operators' functions
+ */
+typedef union _LttvFieldValue {
+ guint64 v_uint64;
+ guint32 v_uint32;
+ guint16 v_uint16;
+ double v_double;
+ char* v_string;
+} LttvFieldValue;
+
/**
* @enum LttvTreeElement
* @brief element types for the tree nodes
* types of nodes which build the LttvFilterTree.
*/
typedef enum _LttvTreeElement {
- LTTV_TREE_IDLE, /** this node does nothing */
- LTTV_TREE_NODE, /** this node contains a logical operator */
- LTTV_TREE_LEAF /** this node is a leaf and contains a simple expression */
+ LTTV_TREE_IDLE, /** this node does nothing */
+ LTTV_TREE_NODE, /** this node contains a logical operator */
+ LTTV_TREE_LEAF /** this node is a leaf and contains a simple expression */
} LttvTreeElement;
+
/**
* @enum LttvSimpleExpression
* @brief simple expression structure
*/
typedef struct _LttvSimpleExpression
{
- char *field_name;
-// LttvExpressionOp op;
- gboolean (*op)();
- char *value;
+ gint field; /** left member of simple expression */
+ gint offset; /** offset used for dynamic fields */
+ gboolean (*op)(gpointer,LttvFieldValue); /** operator of simple expression */
+// char *value;
+ LttvFieldValue value; /** right member of simple expression */
} LttvSimpleExpression;
/**
* AND, OR, XOR or NOT
*/
typedef enum _LttvLogicalOp {
- LTTV_LOGICAL_OR = 1, /* 1 */
- LTTV_LOGICAL_AND = 1<<1, /* 2 */
- LTTV_LOGICAL_NOT = 1<<2, /* 4 */
- LTTV_LOGICAL_XOR = 1<<3 /* 8 */
+ LTTV_LOGICAL_OR = 1, /** OR (1) */
+ LTTV_LOGICAL_AND = 1<<1, /** AND (2) */
+ LTTV_LOGICAL_NOT = 1<<2, /** NOT (4) */
+ LTTV_LOGICAL_XOR = 1<<3 /** XOR (8) */
} LttvLogicalOp;
/**
LttvTreeElement left;
LttvTreeElement right;
union {
- struct LttvFilter* t;
+ struct LttvFilterTree* t;
LttvSimpleExpression* leaf;
} l_child;
union {
- struct LttvFilter* t;
+ struct LttvFilterTree* t;
LttvSimpleExpression* leaf;
} r_child;
} LttvFilterTree;
* General Data Handling functions
*/
+void lttv_filter_tree_add_node(GPtrArray* stack, LttvFilterTree* subtree, LttvLogicalOp op);
+
+/*
+ * Simple Expression
+ */
LttvSimpleExpression* lttv_simple_expression_new();
-void lttv_filter_tree_add_node(GPtrArray* stack, LttvFilterTree* subtree, LttvLogicalOp op);
+gboolean lttv_simple_expression_add_field(GPtrArray* fp, LttvSimpleExpression* se);
+
+gboolean lttv_simple_expression_assign_operator(LttvSimpleExpression* se, LttvExpressionOp op);
+
+gboolean lttv_simple_expression_assign_value(LttvSimpleExpression* se, char* value);
-gboolean parse_field_path(GPtrArray* fp);
+void lttv_simple_expression_destroy(LttvSimpleExpression* se);
-gboolean parse_simple_expression(GString* expression);
/*
* Logical operators functions
*/
-gboolean lttv_apply_op_eq_uint64();
-gboolean lttv_apply_op_eq_uint32();
-gboolean lttv_apply_op_eq_uint16();
-gboolean lttv_apply_op_eq_double();
-gboolean lttv_apply_op_eq_string();
-
-gboolean lttv_apply_op_ne_uint64();
-gboolean lttv_apply_op_ne_uint32();
-gboolean lttv_apply_op_ne_uint16();
-gboolean lttv_apply_op_ne_double();
-gboolean lttv_apply_op_ne_string();
-
-gboolean lttv_apply_op_lt_uint64();
-gboolean lttv_apply_op_lt_uint32();
-gboolean lttv_apply_op_lt_uint16();
-gboolean lttv_apply_op_lt_double();
-
-gboolean lttv_apply_op_le_uint64();
-gboolean lttv_apply_op_le_uint32();
-gboolean lttv_apply_op_le_uint16();
-gboolean lttv_apply_op_le_double();
-
-gboolean lttv_apply_op_gt_uint64();
-gboolean lttv_apply_op_gt_uint32();
-gboolean lttv_apply_op_gt_uint16();
-gboolean lttv_apply_op_gt_double();
-
-gboolean lttv_apply_op_ge_uint64();
-gboolean lttv_apply_op_ge_uint32();
-gboolean lttv_apply_op_ge_uint16();
-gboolean lttv_apply_op_ge_double();
+gboolean lttv_apply_op_eq_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_eq_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_eq_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_eq_double(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_eq_string(gpointer v1, LttvFieldValue v2);
+
+gboolean lttv_apply_op_ne_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ne_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ne_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ne_double(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ne_string(gpointer v1, LttvFieldValue v2);
+
+gboolean lttv_apply_op_lt_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_lt_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_lt_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_lt_double(gpointer v1, LttvFieldValue v2);
+
+gboolean lttv_apply_op_le_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_le_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_le_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_le_double(gpointer v1, LttvFieldValue v2);
+
+gboolean lttv_apply_op_gt_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_gt_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_gt_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_gt_double(gpointer v1, LttvFieldValue v2);
+
+gboolean lttv_apply_op_ge_uint64(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ge_uint32(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ge_uint16(gpointer v1, LttvFieldValue v2);
+gboolean lttv_apply_op_ge_double(gpointer v1, LttvFieldValue v2);
/*
* Cloning
LttvFilter* lttv_filter_clone(LttvFilter* filter);
-/*
- * Constructors/Destructors
+/*
+ * LttvFilter
*/
+LttvFilter *lttv_filter_new();
-/* LttvFilter */
-LttvFilter *lttv_filter_new(char *expression, LttvTraceState *tfs);
+gboolean lttv_filter_update(LttvFilter* filter);
void lttv_filter_destroy(LttvFilter* filter);
-/* LttvFilterTree */
+gboolean lttv_filter_append_expression(LttvFilter* filter, char *expression);
+
+void lttv_filter_clear_expression(LttvFilter* filter);
+
+/*
+ * LttvFilterTree
+ */
LttvFilterTree* lttv_filter_tree_new();
void lttv_filter_tree_destroy(LttvFilterTree* tree);
+gboolean lttv_filter_tree_parse(
+ LttvFilterTree* t,
+ LttEvent* event,
+ LttTracefile* tracefile,
+ LttTrace* trace,
+ LttvProcessState* state);
/*
* Hook functions
gboolean lttv_filter_event(LttvFilter *filter, LttEvent *event);
+/*
+ * Debug functions
+ */
+void lttv_print_tree(LttvFilterTree* t);
+
#endif // FILTER_H
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