X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Ffilter.h;h=59468edabe7c4814216740da41cc2b5ed2f64491;hb=c6832b57f110e6e79501847998821d684ac3ea8b;hp=9224a9a51e6cbef7898387af740d297b231d9c2c;hpb=a4c292d42202029a5153c487fd01263a183a0af2;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/filter.h b/ltt/branches/poly/lttv/lttv/filter.h index 9224a9a5..59468eda 100644 --- a/ltt/branches/poly/lttv/lttv/filter.h +++ b/ltt/branches/poly/lttv/lttv/filter.h @@ -22,13 +22,14 @@ #include #include #include +#include #include +#include #include -#define AVERAGE_EXPRESSION_LENGTH 6 -#define MAX_FACTOR 1.5 -/* 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 @@ -49,84 +50,293 @@ fieldComponent = name [ "[" integer "]" ] value = integer | double | string - */ +/* structures prototypes */ +typedef enum _LttvStructType LttvStructType; +typedef enum _LttvFieldType LttvFieldType; +typedef enum _LttvExpressionOp LttvExpressionOp; +typedef enum _LttvTreeElement LttvTreeElement; +typedef enum _LttvLogicalOp LttvLogicalOp; + +typedef union _LttvFieldValue LttvFieldValue; + +typedef struct _LttvSimpleExpression LttvSimpleExpression; +typedef struct _LttvFilterTree LttvFilterTree; +typedef struct _LttvFilter LttvFilter; + + /** - * @enum lttv_expression_op + * @enum LttvStructType + * @brief The lttv structures + * + * the LttvStructType enumerates + * the possible structures for the + * lttv core filter */ -typedef enum _lttv_expression_op -{ - 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_expression_op; - -typedef enum _lttv_expression_type -{ - LTTV_EXPRESSION, - LTTV_SIMPLE_EXPRESSION -} lttv_expression_type; +enum _LttvStructType { + LTTV_FILTER_TRACE, + LTTV_FILTER_TRACESET, + LTTV_FILTER_TRACEFILE, + LTTV_FILTER_EVENT, + LTTV_FILTER_STATE +}; -typedef struct _lttv_simple_expression +/** + * @enum LttvFieldType + * @brief Possible fields for the structures + * + * the LttvFieldType enum consists on + * all the hardcoded structures and + * their appropriate fields on which + * filters can be applied. + */ +enum _LttvFieldType { + 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 */ +}; + +/** + * @enum LttvExpressionOp + * @brief Contains possible operators + * + * This enumeration defines the + * possible operator used to compare + * right and left member in simple + * expression + */ +enum _LttvExpressionOp { - lttv_expression_op op; - char *field_name; - char *value; -} lttv_simple_expression; + 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 */ +}; + +/** + * @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 + */ +union _LttvFieldValue { + guint64 v_uint64; + guint32 v_uint32; + guint16 v_uint16; + double v_double; + char* v_string; + LttTime v_ltttime; +}; +/** + * @enum LttvTreeElement + * @brief element types for the tree nodes + * + * LttvTreeElement defines the possible + * types of nodes which build the LttvFilterTree. + */ +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 */ +}; -//typedef union _tmp { -// struct lttv_expression *e; -// lttv_field_relation *se; -//} tmp; -/* -typedef struct _lttv_expression -{ - gboolean or; - gboolean not; - gboolean and; - gboolean xor; - gboolean simple_expression; -// tmp e; -} lttv_expression; -*/ -typedef union _lttv_expression { - lttv_simple_expression se; - -} lttv_expression; +/** + * @struct LttvSimpleExpression + * @brief simple expression structure + * + * An LttvSimpleExpression is the base + * of all filtering operations. It also + * populates the leaves of the + * LttvFilterTree. Each expression + * consists basically in a structure + * field, an operator and a specific + * value. + */ +struct _LttvSimpleExpression +{ + 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 */ +}; -typedef struct _lttv_filter_tree { - lttv_expression* node; - struct lttv_filter_tree* r_child; - struct lttv_filter_tree* l_child; -} lttv_filter_tree; +/** + * @enum LttvLogicalOp + * @brief logical operators + * + * Contains the possible values taken + * by logical operator used to link + * simple expression. Values are + * AND, OR, XOR or NOT + */ +enum _LttvLogicalOp { + 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) */ +}; + +/** + * @struct LttvFilterTree + * The filtering tree is used to represent the + * expression string in its entire hierarchy + * composed of simple expressions and logical + * operators + */ +struct _LttvFilterTree { + int node; /** value of LttvLogicalOp */ + LttvTreeElement left; + LttvTreeElement right; + union { + LttvFilterTree* t; + LttvSimpleExpression* leaf; + } l_child; + union { + LttvFilterTree* t; + LttvSimpleExpression* leaf; + } r_child; +}; /** * @struct lttv_filter - * ( will later contain a binary tree of filtering options ) + * Contains a binary tree of filtering options along + * with the expression itself. + */ +struct _LttvFilter { + char *expression; + LttvFilterTree *head; +}; + +/* + * Simple Expression + */ +LttvSimpleExpression* lttv_simple_expression_new(); + +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); + +void lttv_simple_expression_destroy(LttvSimpleExpression* se); + + +/* + * Logical operators functions + */ + +gboolean lttv_apply_op_eq_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_string(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_quark(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_eq_ltttime(const gpointer v1, LttvFieldValue v2); + +gboolean lttv_apply_op_ne_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_string(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_quark(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ne_ltttime(const gpointer v1, LttvFieldValue v2); + +gboolean lttv_apply_op_lt_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_lt_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_lt_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_lt_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_lt_ltttime(const gpointer v1, LttvFieldValue v2); + +gboolean lttv_apply_op_le_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_le_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_le_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_le_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_le_ltttime(const gpointer v1, LttvFieldValue v2); + +gboolean lttv_apply_op_gt_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_gt_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_gt_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_gt_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_gt_ltttime(const gpointer v1, LttvFieldValue v2); + +gboolean lttv_apply_op_ge_uint64(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ge_uint32(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ge_uint16(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ge_double(const gpointer v1, LttvFieldValue v2); +gboolean lttv_apply_op_ge_ltttime(const gpointer v1, LttvFieldValue v2); + +/* + * Cloning + */ + +LttvFilterTree* lttv_filter_tree_clone(const LttvFilterTree* tree); + +LttvFilter* lttv_filter_clone(const LttvFilter* filter); + +/* + * LttvFilter */ -typedef struct _lttv_filter { - lttv_filter_tree* tree; -} lttv_filter; +LttvFilter *lttv_filter_new(); + +gboolean lttv_filter_update(LttvFilter* filter); + +void lttv_filter_destroy(LttvFilter* filter); -gboolean parse_simple_expression(GString* expression); +gboolean lttv_filter_append_expression(LttvFilter* filter, char *expression); -/* Compile the filter expression into an efficient data structure */ +void lttv_filter_clear_expression(LttvFilter* filter); -lttv_filter *lttv_filter_new(char *expression, LttvTraceState *tfs); +/* + * LttvFilterTree + */ +LttvFilterTree* lttv_filter_tree_new(); +void lttv_filter_tree_destroy(LttvFilterTree* tree); -/* Check if the tracefile or event satisfies the filter. The arguments are - declared as void * to allow these functions to be used as hooks. */ +gboolean lttv_filter_tree_parse( + const LttvFilterTree* t, + const LttEvent* event, + const LttTracefile* tracefile, + const LttTrace* trace, + const LttvProcessState* state, + const LttvTracefileContext* context); -gboolean lttv_filter_tracefile(lttv_filter *filter, LttvTrace *tracefile); +gboolean lttv_filter_tree_parse_branch( + const LttvSimpleExpression* se, + const LttEvent* event, + const LttTracefile* tracefile, + const LttTrace* trace, + const LttvProcessState* state, + const LttvTracefileContext* context); -gboolean lttv_filter_event(lttv_filter *filter, LttEvent *event); +/* + * Debug functions + */ +void lttv_print_tree(const LttvFilterTree* t); #endif // FILTER_H