f204781b |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais |
3 | * 2005 Mathieu Desnoyers |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License Version 2 as |
7 | * published by the Free Software Foundation; |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
17 | * MA 02111-1307, USA. |
18 | */ |
19 | |
20 | /* The text dump facility needs to print headers before the trace set and |
21 | before each trace, to print each event, and to print statistics |
22 | after each trace. */ |
23 | |
24 | #ifdef HAVE_CONFIG_H |
25 | #include <config.h> |
26 | #endif |
27 | |
28 | #include <lttv/lttv.h> |
29 | #include <lttv/option.h> |
30 | #include <lttv/module.h> |
31 | #include <lttv/hook.h> |
32 | #include <lttv/attribute.h> |
33 | #include <lttv/iattribute.h> |
34 | #include <lttv/stats.h> |
35 | #include <lttv/filter.h> |
36 | #include <lttv/print.h> |
37 | #include <ltt/ltt.h> |
38 | #include <ltt/event.h> |
39 | #include <ltt/type.h> |
40 | #include <ltt/trace.h> |
41 | #include <ltt/facility.h> |
42 | #include <stdio.h> |
43 | |
44 | static gboolean |
45 | a_field_names, |
46 | a_state, |
47 | a_cpu_stats, |
48 | a_process_stats; |
49 | |
50 | static char |
51 | *a_file_name = NULL; |
52 | |
53 | static LttvHooks |
54 | *before_traceset, |
55 | *after_traceset, |
56 | *before_trace, |
57 | *event_hook; |
58 | |
59 | |
60 | /* Insert the hooks before and after each trace and tracefile, and for each |
61 | event. Print a global header. */ |
62 | |
63 | static FILE *a_file; |
64 | |
65 | static GString *a_string; |
66 | |
67 | static gboolean write_traceset_header(void *hook_data, void *call_data) |
68 | { |
69 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
70 | |
71 | g_info("TextDump traceset header"); |
72 | |
73 | if(a_file_name == NULL) a_file = stdout; |
74 | else a_file = fopen(a_file_name, "w"); |
75 | |
76 | if(a_file == NULL) g_error("cannot open file %s", a_file_name); |
77 | |
78 | /* Print the trace set header */ |
79 | fprintf(a_file,"Trace set contains %d traces\n\n", |
80 | lttv_traceset_number(tc->ts)); |
81 | |
82 | return FALSE; |
83 | } |
84 | |
85 | |
86 | static gboolean write_traceset_footer(void *hook_data, void *call_data) |
87 | { |
88 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
89 | |
90 | g_info("TextDump traceset footer"); |
91 | |
92 | fprintf(a_file,"End trace set\n\n"); |
93 | |
94 | if(LTTV_IS_TRACESET_STATS(tc)) { |
95 | lttv_stats_sum_traceset((LttvTracesetStats *)tc); |
96 | print_stats(a_file, (LttvTracesetStats *)tc); |
97 | } |
98 | |
99 | if(a_file_name != NULL) fclose(a_file); |
100 | |
101 | return FALSE; |
102 | } |
103 | |
104 | |
105 | static gboolean write_trace_header(void *hook_data, void *call_data) |
106 | { |
107 | LttvTraceContext *tc = (LttvTraceContext *)call_data; |
108 | #if 0 //FIXME |
109 | LttSystemDescription *system = ltt_trace_system_description(tc->t); |
110 | |
111 | fprintf(a_file," Trace from %s in %s\n%s\n\n", |
112 | ltt_trace_system_description_node_name(system), |
113 | ltt_trace_system_description_domain_name(system), |
114 | ltt_trace_system_description_description(system)); |
115 | #endif //0 |
116 | return FALSE; |
117 | } |
118 | |
119 | |
120 | static int for_each_event(void *hook_data, void *call_data) |
121 | { |
122 | guint *event_count = (guint*)hook_data; |
123 | |
124 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
125 | |
126 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
127 | |
128 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
129 | |
130 | LttEvent *e; |
131 | |
132 | LttvAttributeValue value_filter; |
133 | |
134 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
135 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
136 | return FALSE; |
137 | else |
138 | *event_count = 0; |
139 | |
140 | guint cpu = tfs->cpu; |
141 | LttvTraceState *ts = (LttvTraceState*)tfc->t_context; |
142 | LttvProcessState *process = ts->running_process[cpu]; |
143 | |
144 | e = ltt_tracefile_get_event(tfc->tf); |
145 | |
146 | lttv_state_write(ts, tfs->parent.timestamp, a_file); |
147 | |
148 | return FALSE; |
149 | } |
150 | |
151 | |
152 | static void init() |
153 | { |
154 | LttvAttributeValue value; |
155 | |
156 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
157 | |
158 | g_info("Init textDump.c"); |
159 | |
160 | a_string = g_string_new(""); |
161 | |
162 | a_file_name = NULL; |
163 | lttv_option_add("output", 'o', |
164 | "output file where the saved states are to be written", |
165 | "file name", |
166 | LTTV_OPT_STRING, &a_file_name, NULL, NULL); |
167 | |
168 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event", |
169 | LTTV_POINTER, &value)); |
170 | g_assert((event_hook = *(value.v_pointer)) != NULL); |
171 | lttv_hooks_add(event_hook, write_event_content, NULL, LTTV_PRIO_DEFAULT); |
172 | |
173 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before", |
174 | LTTV_POINTER, &value)); |
175 | g_assert((before_trace = *(value.v_pointer)) != NULL); |
176 | lttv_hooks_add(before_trace, write_trace_header, NULL, LTTV_PRIO_DEFAULT); |
177 | |
178 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before", |
179 | LTTV_POINTER, &value)); |
180 | g_assert((before_traceset = *(value.v_pointer)) != NULL); |
181 | lttv_hooks_add(before_traceset, write_traceset_header, NULL, |
182 | LTTV_PRIO_DEFAULT); |
183 | |
184 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after", |
185 | LTTV_POINTER, &value)); |
186 | g_assert((after_traceset = *(value.v_pointer)) != NULL); |
187 | lttv_hooks_add(after_traceset, write_traceset_footer, NULL, |
188 | LTTV_PRIO_DEFAULT); |
189 | } |
190 | |
191 | static void destroy() |
192 | { |
193 | g_info("Destroy textDump"); |
194 | |
195 | lttv_option_remove("output"); |
196 | |
197 | g_string_free(a_string, TRUE); |
198 | |
199 | lttv_hooks_remove_data(event_hook, for_each_event, NULL); |
200 | |
201 | lttv_hooks_remove_data(before_trace, write_trace_header, NULL); |
202 | |
203 | lttv_hooks_remove_data(before_trace, write_traceset_header, NULL); |
204 | |
205 | lttv_hooks_remove_data(before_trace, write_traceset_footer, NULL); |
206 | } |
207 | |
208 | |
209 | LTTV_MODULE("textDump", "Print events in a file", \ |
210 | "Produce a detailed text printout of a trace", \ |
211 | init, destroy, "stats", "batchAnalysis", "option", "print") |
212 | |