--- /dev/null
+/* This file is part of the Linux Trace Toolkit viewer
+ * 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
+ * published by the Free Software Foundation;
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*! \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 <glib.h>
+#include <lttv/lttv.h>
+#include <lttv/option.h>
+#include <lttv/module.h>
+#include <lttv/hook.h>
+#include <lttv/attribute.h>
+#include <lttv/iattribute.h>
+#include <lttv/stats.h>
+#include <lttv/filter.h>
+#include <ltt/ltt.h>
+#include <ltt/event.h>
+#include <ltt/trace.h>
+
+/* Insert the hooks before and after each trace and tracefile, and for each
+ event. Print a global header. */
+
+/*
+ * TODO
+ * - specify wich hook function will be used to call the core filter
+ */
+
+static char
+ *a_file_name = NULL,
+ *a_string = NULL;
+
+static LttvHooks __attribute__ ((__unused__))
+ *before_traceset,
+ *event_hook;
+
+/**
+ * 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),')');
+
+}
+
+/**
+ * filters the string input from user
+ * @param hook_data the hook data, unused
+ */
+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
+ */
+ 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),')');
+
+}
+
+/**
+ * Output all filter commands on console
+ * @param hook_data the hook data
+ */
+void filter_list_commands(void *hook_data) {
+
+ g_print("[field] [op] [value]\n\n");
+
+ g_print("*** Possible fields ***\n");
+ g_print("event.name (string) (channel_name.event_name)\n");
+ g_print("event.subname (string)\n");
+ g_print("event.category (string)\n");
+ g_print("event.time (double)\n");
+ g_print("event.tsc (integer)\n");
+ g_print("event.target_pid (integer)\n");
+ g_print("event.field.channel_name.event_name.field_name.subfield_name (field_type)\n");
+ g_print("channel.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");
+}
+
+/**
+ * initialize the new module
+ */
+static void init() {
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
+ LTTV_POINTER, &value));
+
+ *(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_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, 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);
+
+}
+
+/**
+ * Destroy the current module
+ */
+static void destroy() {
+ g_info("Destroy textFilter");
+
+ lttv_option_remove("expression");
+
+ lttv_option_remove("filename");
+
+ lttv_option_remove("list");
+
+ LttvAttributeValue value;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+ 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, "option")
+
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