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a58509ee | 1 | /* This file is part of the Linux Trace Toolkit viewer |
852f16bb | 2 | * Copyright (C) 2005 Simon Bouvier-Zappa |
a58509ee | 3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
7e7af7f2 | 19 | /*! \file lttv/modules/text/textFilter.c |
20 | * \brief Textual prompt for user filtering expression. | |
21 | * | |
22 | * The text filter facility will prompt for user filter option | |
23 | * and transmit them to the lttv core. User can either specify | |
24 | * a filtering string with the command line or/and specify a | |
25 | * file containing filtering expressions. | |
91ad3f0a | 26 | */ |
a58509ee | 27 | |
4e4d11b3 | 28 | #ifdef HAVE_CONFIG_H |
29 | #include <config.h> | |
30 | #endif | |
31 | ||
4ec0c904 | 32 | #include <glib.h> |
a58509ee | 33 | #include <lttv/lttv.h> |
34 | #include <lttv/option.h> | |
35 | #include <lttv/module.h> | |
36 | #include <lttv/hook.h> | |
37 | #include <lttv/attribute.h> | |
38 | #include <lttv/iattribute.h> | |
39 | #include <lttv/stats.h> | |
40 | #include <lttv/filter.h> | |
41 | #include <ltt/ltt.h> | |
42 | #include <ltt/event.h> | |
a58509ee | 43 | #include <ltt/trace.h> |
a58509ee | 44 | |
45 | /* Insert the hooks before and after each trace and tracefile, and for each | |
46 | event. Print a global header. */ | |
47 | ||
1601b365 | 48 | /* |
49 | * TODO | |
50 | * - specify wich hook function will be used to call the core filter | |
51 | */ | |
52 | ||
91ad3f0a | 53 | static char |
a58509ee | 54 | *a_file_name = NULL, |
91ad3f0a | 55 | *a_string = NULL; |
56 | ||
43ed82b5 | 57 | static LttvHooks __attribute__ ((__unused__)) |
a58509ee | 58 | *before_traceset, |
59 | *event_hook; | |
60 | ||
a58509ee | 61 | /** |
91ad3f0a | 62 | * filters the file input from user |
bd523c6f | 63 | * @param hook_data the hook data, unused |
a58509ee | 64 | */ |
91ad3f0a | 65 | void filter_analyze_file(void *hook_data) { |
66 | ||
73050a5f | 67 | LttvAttributeValue value; |
68 | ||
69 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); | |
8f318283 | 70 | gboolean retval; |
73050a5f | 71 | |
91ad3f0a | 72 | /* |
a58509ee | 73 | * User may specify filtering options through static file |
74 | * and/or command line string. From these sources, an | |
75 | * option string is rebuilded and sent to the filter core | |
76 | */ | |
c684db06 | 77 | if(!g_file_test(a_file_name,G_FILE_TEST_EXISTS)) { |
78 | g_warning("file %s does not exist", a_file_name); | |
79 | return; | |
80 | } | |
81 | ||
82 | char* a_file_content = NULL; | |
83 | ||
84 | g_file_get_contents(a_file_name,&a_file_content,NULL,NULL); | |
91ad3f0a | 85 | |
8f318283 BP |
86 | retval= lttv_iattribute_find_by_path(attributes, "filter/expression", |
87 | LTTV_POINTER, &value); | |
88 | g_assert(retval); | |
29a81f1a BP |
89 | |
90 | if (((GString*)*(value.v_pointer))->len != 0) | |
91 | g_string_append_c((GString*)*(value.v_pointer),'&'); | |
92 | g_string_append_c((GString*)*(value.v_pointer),'('); | |
93 | g_string_append((GString*)*(value.v_pointer),a_file_content); | |
94 | g_string_append_c((GString*)*(value.v_pointer),')'); | |
91ad3f0a | 95 | } |
96 | ||
97 | /** | |
98 | * filters the string input from user | |
bd523c6f | 99 | * @param hook_data the hook data, unused |
91ad3f0a | 100 | */ |
101 | void filter_analyze_string(void *hook_data) { | |
102 | ||
73050a5f | 103 | LttvAttributeValue value; |
104 | ||
105 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); | |
8f318283 BP |
106 | gboolean retval; |
107 | ||
91ad3f0a | 108 | /* |
109 | * User may specify filtering options through static file | |
110 | * and/or command line string. From these sources, an | |
111 | * option string is rebuilded and sent to the filter core | |
112 | */ | |
8f318283 BP |
113 | retval= lttv_iattribute_find_by_path(attributes, "filter/expression", |
114 | LTTV_POINTER, &value); | |
115 | g_assert(retval); | |
29a81f1a BP |
116 | |
117 | if (((GString*)*(value.v_pointer))->len != 0) | |
118 | g_string_append_c((GString*)*(value.v_pointer),'&'); | |
119 | g_string_append_c((GString*)*(value.v_pointer),'('); | |
120 | g_string_append((GString*)*(value.v_pointer),a_string); | |
121 | g_string_append_c((GString*)*(value.v_pointer),')'); | |
a58509ee | 122 | } |
123 | ||
bd523c6f | 124 | /** |
125 | * Output all filter commands on console | |
126 | * @param hook_data the hook data | |
127 | */ | |
128 | void filter_list_commands(void *hook_data) { | |
129 | ||
130 | g_print("[field] [op] [value]\n\n"); | |
131 | ||
132 | g_print("*** Possible fields ***\n"); | |
6471e71f | 133 | g_print("event.name (string) (channel_name.event_name)\n"); |
134 | g_print("event.subname (string)\n"); | |
bd523c6f | 135 | g_print("event.category (string)\n"); |
136 | g_print("event.time (double)\n"); | |
137 | g_print("event.tsc (integer)\n"); | |
33bdc8dd | 138 | g_print("event.target_pid (integer)\n"); |
6471e71f | 139 | g_print("event.field.channel_name.event_name.field_name.subfield_name (field_type)\n"); |
140 | g_print("channel.name (string)\n"); | |
bd523c6f | 141 | g_print("trace.name (string)\n"); |
142 | g_print("state.pid (integer)\n"); | |
143 | g_print("state.ppid (integer)\n"); | |
144 | g_print("state.creation_time (double)\n"); | |
7b5f6cf1 | 145 | g_print("state.insertion_time (double)\n"); |
146 | g_print("state.process_name (string)\n"); | |
147 | g_print("state.thread_brand (string)\n"); | |
148 | g_print("state.execution_mode (string)\n"); | |
149 | g_print("state.execution_submode (string)\n"); | |
150 | g_print("state.process_status (string)\n"); | |
151 | g_print("state.cpu (string)\n\n"); | |
bd523c6f | 152 | |
153 | g_print("*** Possible operators ***\n"); | |
154 | g_print("equal '='\n"); | |
155 | g_print("not equal '!='\n"); | |
156 | g_print("greater '>'\n"); | |
157 | g_print("greater or equal '>='\n"); | |
158 | g_print("lower '<'\n"); | |
159 | g_print("lower or equal '<='\n"); | |
160 | ||
161 | g_print("*** Possible values ***\n"); | |
162 | g_print("string, integer, double"); | |
163 | } | |
164 | ||
a58509ee | 165 | /** |
166 | * initialize the new module | |
167 | */ | |
168 | static void init() { | |
169 | ||
a58509ee | 170 | LttvAttributeValue value; |
171 | ||
172 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); | |
8f318283 | 173 | gboolean retval; |
a58509ee | 174 | |
8f318283 BP |
175 | retval= lttv_iattribute_find_by_path(attributes, "filter/expression", |
176 | LTTV_POINTER, &value); | |
177 | g_assert(retval); | |
73050a5f | 178 | |
179 | *(value.v_pointer) = g_string_new(""); | |
180 | ||
a58509ee | 181 | g_info("Init textFilter.c"); |
cec3d7b0 | 182 | |
91ad3f0a | 183 | a_string = NULL; |
73050a5f | 184 | lttv_option_add("expression", 'e', |
a58509ee | 185 | "filters a string issued by the user on the command line", |
186 | "string", | |
91ad3f0a | 187 | LTTV_OPT_STRING, &a_string, filter_analyze_string, NULL); |
1a7fa682 | 188 | // add function to call for option |
189 | ||
a58509ee | 190 | a_file_name = NULL; |
191 | lttv_option_add("filename", 'f', | |
192 | "browse the filter options contained in specified file", | |
193 | "file name", | |
91ad3f0a | 194 | LTTV_OPT_STRING, &a_file_name, filter_analyze_file, NULL); |
a58509ee | 195 | |
bd523c6f | 196 | lttv_option_add("list", 'l', |
197 | "list all possible filter commands for module", | |
198 | "list commands", | |
199 | LTTV_OPT_NONE, NULL, filter_list_commands, NULL); | |
200 | ||
a58509ee | 201 | } |
202 | ||
203 | /** | |
204 | * Destroy the current module | |
205 | */ | |
206 | static void destroy() { | |
8f318283 BP |
207 | gboolean retval; |
208 | ||
a58509ee | 209 | g_info("Destroy textFilter"); |
210 | ||
73050a5f | 211 | lttv_option_remove("expression"); |
a58509ee | 212 | |
213 | lttv_option_remove("filename"); | |
214 | ||
bd523c6f | 215 | lttv_option_remove("list"); |
216 | ||
73050a5f | 217 | LttvAttributeValue value; |
218 | ||
219 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); | |
a58509ee | 220 | |
8f318283 BP |
221 | retval= lttv_iattribute_find_by_path(attributes, "filter/expression", |
222 | LTTV_POINTER, &value); | |
223 | g_assert(retval); | |
73050a5f | 224 | |
225 | g_string_free((GString*)*(value.v_pointer),TRUE); | |
a58509ee | 226 | |
227 | } | |
228 | ||
229 | ||
230 | LTTV_MODULE("textFilter", "Filters traces", \ | |
231 | "Filter the trace following commands issued by user input", \ | |
73050a5f | 232 | init, destroy, "option") |
a58509ee | 233 |