/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2003-2004 Michel Dagenais
+ * Copyright (C) 2005 Simon Bouvier-Zappa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License Version 2 as
* MA 02111-1307, USA.
*/
-/* The text filter facility will prompt for user filter option
- * and transmit them to the lttv core */
+/*! \file lttv/modules/text/textFilter.c
+ * \brief Textual prompt for user filtering expression.
+ *
+ * The text filter facility will prompt for user filter option
+ * and transmit them to the lttv core. User can either specify
+ * a filtering string with the command line or/and specify a
+ * file containing filtering expressions.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <lttv/lttv.h>
#include <lttv/option.h>
/* Insert the hooks before and after each trace and tracefile, and for each
event. Print a global header. */
-static char
+/*
+ * TODO
+ * - specify wich hook function will be used to call the core filter
+ */
+
+static char
*a_file_name = NULL,
- *a_filter_string = NULL;
+ *a_string = NULL;
static LttvHooks
*before_traceset,
*event_hook;
-static FILE *a_file;
+/**
+ * filters the file input from user
+ * @param hook_data the hook data, unused
+ */
+void filter_analyze_file(void *hook_data) {
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ /*
+ * User may specify filtering options through static file
+ * and/or command line string. From these sources, an
+ * option string is rebuilded and sent to the filter core
+ */
+ if(!g_file_test(a_file_name,G_FILE_TEST_EXISTS)) {
+ g_warning("file %s does not exist", a_file_name);
+ return;
+ }
+
+ char* a_file_content = NULL;
+
+ g_file_get_contents(a_file_name,&a_file_content,NULL,NULL);
+
+ g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
+ LTTV_POINTER, &value));
+
+ if(((GString*)*(value.v_pointer))->len != 0) g_string_append_c((GString*)*(value.v_pointer),'&');
+ g_string_append_c((GString*)*(value.v_pointer),'(');
+ g_string_append((GString*)*(value.v_pointer),a_file_content);
+ g_string_append_c((GString*)*(value.v_pointer),')');
+
+}
/**
- * analyses user filter options and issues the filter string
- * to the core
- * @param hook_data the hook data
- * @param call_data the call data
+ * filters the string input from user
+ * @param hook_data the hook data, unused
*/
-static void parse_filter_options(void *hook_data, void *call_data) {
-
- char* parsed_string=NULL; /* the string compiled from user's input */
-
- /* debug */
- g_print("textFilter::parse_filter_options\n");
-
- /* recovering hooks data */
- LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
- LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
- LttvTrace* lt = tfc->t_context->vt;
-
- /* hook header */
- g_info("TextFilter options parser");
-
- /*
+void filter_analyze_string(void *hook_data) {
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ /*
* User may specify filtering options through static file
* and/or command line string. From these sources, an
* option string is rebuilded and sent to the filter core
*/
- if(a_file_name != NULL) { /* -f switch in use */
- a_file = fopen(a_file_name, "r");
- if(a_file == NULL)
- g_error("textFilter::parse_filter_content() cannot open file %s", a_file_name);
-
- fscanf(a_file,"%s",parsed_string);
-
- fclose(a_file);
- }
- if(a_filter_string != NULL) /* -s switch in use */
- parsed_string = a_filter_string;
-
- if(parsed_string==NULL)
- g_warning("textFilter::parser_filter_options() no filtering options specified !");
-
- /* send the filtering string to the core */
- lttv_filter_new(parsed_string,lt);
-
+ g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
+ LTTV_POINTER, &value));
+
+ if(((GString*)*(value.v_pointer))->len != 0) g_string_append_c((GString*)*(value.v_pointer),'&');
+ g_string_append_c((GString*)*(value.v_pointer),'(');
+ g_string_append((GString*)*(value.v_pointer),a_string);
+ g_string_append_c((GString*)*(value.v_pointer),')');
+
}
/**
- * filter to current event depending on the
- * filter options tree
+ * Output all filter commands on console
* @param hook_data the hook data
- * @param call_data the call data
- * @return success/error of operation
*/
-static gboolean filter_event_content(void *hook_data, void *call_data) {
-
- g_print("textFilter::filter_event_content\n"); /* debug */
+void filter_list_commands(void *hook_data) {
+
+ g_print("[field] [op] [value]\n\n");
+
+ g_print("*** Possible fields ***\n");
+ g_print("event.name (string)\n");
+ g_print("event.facility (string)\n");
+ g_print("event.category (string)\n");
+ g_print("event.time (double)\n");
+ g_print("event.tsc (integer)\n");
+ g_print("event.field.facility_name.event_name.field_name.subfield_name (field_type)\n");
+ g_print("tracefile.name (string)\n");
+ g_print("trace.name (string)\n");
+ g_print("state.pid (integer)\n");
+ g_print("state.ppid (integer)\n");
+ g_print("state.creation_time (double)\n");
+ g_print("state.insertion_time (double)\n");
+ g_print("state.process_name (string)\n");
+ g_print("state.thread_brand (string)\n");
+ g_print("state.execution_mode (string)\n");
+ g_print("state.execution_submode (string)\n");
+ g_print("state.process_status (string)\n");
+ g_print("state.cpu (string)\n\n");
+
+ g_print("*** Possible operators ***\n");
+ g_print("equal '='\n");
+ g_print("not equal '!='\n");
+ g_print("greater '>'\n");
+ g_print("greater or equal '>='\n");
+ g_print("lower '<'\n");
+ g_print("lower or equal '<='\n");
+
+ g_print("*** Possible values ***\n");
+ g_print("string, integer, double");
}
/**
*/
static void init() {
- g_print("textFilter::init()"); /* debug */
-
LttvAttributeValue value;
LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
- g_info("Init textFilter.c");
+ g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
+ LTTV_POINTER, &value));
- a_filter_string = NULL;
- lttv_option_add("string", 's',
+ *(value.v_pointer) = g_string_new("");
+
+ g_info("Init textFilter.c");
+
+ a_string = NULL;
+ lttv_option_add("expression", 'e',
"filters a string issued by the user on the command line",
"string",
- LTTV_OPT_STRING, &a_filter_string, NULL, NULL);
-
+ LTTV_OPT_STRING, &a_string, filter_analyze_string, NULL);
+ // add function to call for option
+
a_file_name = NULL;
lttv_option_add("filename", 'f',
"browse the filter options contained in specified file",
"file name",
- LTTV_OPT_STRING, &a_file_name, NULL, NULL);
-
- /*
- * Note to myself !
- * LttvAttributeValue::v_pointer is a gpointer* --> void**
- * see union LttvAttributeValue for more info
- */
- g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event",
- LTTV_POINTER, &value));
- g_assert((event_hook = *(value.v_pointer)) != NULL);
- lttv_hooks_add(event_hook, filter_event_content, NULL, LTTV_PRIO_DEFAULT);
-
- g_assert(lttv_iattribute_find_by_path(attributes,"hooks/trace/before",
- LTTV_POINTER, &value));
- g_assert((before_traceset = *(value.v_pointer)) != NULL);
- lttv_hooks_add(before_traceset, parse_filter_options, NULL, LTTV_PRIO_DEFAULT);
+ LTTV_OPT_STRING, &a_file_name, filter_analyze_file, NULL);
+ lttv_option_add("list", 'l',
+ "list all possible filter commands for module",
+ "list commands",
+ LTTV_OPT_NONE, NULL, filter_list_commands, NULL);
}
static void destroy() {
g_info("Destroy textFilter");
- lttv_option_remove("string");
+ lttv_option_remove("expression");
lttv_option_remove("filename");
- lttv_hooks_remove_data(event_hook, filter_event_content, NULL);
+ lttv_option_remove("list");
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
- lttv_hooks_remove_data(before_traceset, parse_filter_options, NULL);
+ g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
+ LTTV_POINTER, &value));
+
+ g_string_free((GString*)*(value.v_pointer),TRUE);
}
LTTV_MODULE("textFilter", "Filters traces", \
"Filter the trace following commands issued by user input", \
- init, destroy, "batchAnalysis", "option")
+ init, destroy, "option")
projects / lttv.git / blobdiff