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1 | /* The text dump facility needs to print headers before the trace set and |
2 | before each trace, to print each event, and to print statistics |
3 | after each trace. */ |
4 | |
996acd92 |
5 | #include <lttv/lttv.h> |
6 | #include <lttv/option.h> |
7 | #include <lttv/module.h> |
8 | #include <lttv/hook.h> |
9 | #include <lttv/attribute.h> |
10 | #include <lttv/iattribute.h> |
11 | #include <lttv/state.h> |
12 | |
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13 | static gboolean |
14 | a_field_names, |
15 | a_state; |
16 | |
17 | static char |
18 | *a_file_name; |
19 | |
20 | static LttvHooks |
21 | *before_traceset, |
22 | *after_traceset, |
23 | *before_trace, |
24 | *before_event; |
25 | |
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26 | |
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27 | void init(int argc, char **argv) |
28 | { |
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29 | LttvAttributeValue *value; |
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30 | |
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31 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
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32 | |
33 | a_file_name = NULL; |
34 | lttv_option_add("output", 'o', |
35 | "output file where the text is written", |
36 | "file name", |
37 | LTTV_OPT_STRING, &a_file_name, NULL, NULL); |
38 | |
39 | a_field_names = FALSE; |
40 | lttv_option_add("field_names", 'l', |
41 | "write the field names for each event", |
42 | "", |
43 | LTTV_OPT_NONE, &a_field_names, NULL, NULL); |
44 | |
45 | a_state = FALSE; |
46 | lttv_option_add("process_state", 's', |
47 | "write the pid and state for each event", |
48 | "", |
49 | LTTV_OPT_NONE, &a_state, NULL, NULL); |
50 | |
51 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before", |
52 | LTTV_POINTER, &value)); |
53 | g_assert((before_event = *(value->v_pointer)) != NULL); |
54 | lttv_hooks_add(before_event, write_event_content, NULL); |
55 | |
56 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before", |
57 | LTTV_POINTER, &value)); |
58 | g_assert((before_trace = *(value->v_pointer)) != NULL); |
59 | lttv_hooks_add(before_trace, write_trace_header, NULL); |
60 | |
61 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before", |
62 | LTTV_POINTER, &value)); |
63 | g_assert((before_traceset = *(value->v_pointer)) != NULL); |
64 | lttv_hooks_add(before_traceset, write_traceset_header, NULL); |
65 | |
66 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after", |
67 | LTTV_POINTER, &value)); |
68 | g_assert((after_traceset = *(value->v_pointer)) != NULL); |
69 | lttv_hooks_add(after_traceset, write_traceset_footer, NULL); |
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70 | } |
71 | |
72 | |
73 | void destroy() |
74 | { |
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75 | lttv_option_remove("output"); |
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76 | |
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77 | lttv_option_remove("field_names"); |
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78 | |
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79 | lttv_option_remove("process_state"); |
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80 | |
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81 | lttv_hooks_remove(before_event, write_event, NULL); |
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82 | |
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83 | lttv_hooks_remove(before_trace, write_trace_header, NULL); |
84 | |
85 | lttv_hooks_remove(before_trace, write_traceset_header, NULL); |
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86 | |
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87 | lttv_hooks_remove(before_trace, write_traceset_footer, NULL); |
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88 | } |
89 | |
90 | |
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91 | /* Insert the hooks before and after each trace and tracefile, and for each |
92 | event. Print a global header. */ |
93 | |
94 | static FILE *a_file; |
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95 | |
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96 | static GString *a_string; |
97 | |
98 | static static gboolean write_traceset_header(void *hook_data, void *call_data) |
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99 | { |
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100 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
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101 | |
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102 | if(a_file_name == NULL) a_file = stdout; |
103 | else a_file = fopen(a_file_name, "w"); |
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104 | |
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105 | if(a_file == NULL) g_error("cannot open file %s", a_file_name); |
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106 | |
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107 | /* Print the trace set header */ |
108 | fprintf(a_file,"Trace set contains %d traces\n\n", |
109 | lttv_traceset_number(tc->ta); |
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110 | |
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111 | return FALSE; |
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112 | } |
113 | |
114 | |
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115 | static static gboolean write_traceset_footer(void *hook_data, void *call_data) |
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116 | { |
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117 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
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118 | |
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119 | if(a_file_name != NULL) a_file = fclose(a_file); |
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120 | |
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121 | fprintf(a_file,"End trace set\n\n"); |
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122 | |
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123 | return FALSE; |
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124 | } |
125 | |
126 | |
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127 | static gboolean write_trace_header(void *hook_data, void *call_data) |
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128 | { |
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129 | LttvTraceContext *tc = (LttvTraceContext *)call_data; |
130 | |
131 | LttSystemDescription *system = ltt_trace_system_description(tc->t); |
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132 | |
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133 | fprintf(a_file," Trace from %s in %s\n%s\n\n", system->node_name, |
134 | system->domain_name, system->description); |
135 | return FALSE; |
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136 | } |
137 | |
138 | |
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139 | static int write_event_content(void *hook_data, void *call_data) |
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140 | { |
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141 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
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142 | |
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143 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
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144 | |
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145 | LttEvent *e; |
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146 | |
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147 | e = tfc->e; |
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148 | |
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149 | lttv_event_to_string(e, tfc->tf, a_string, TRUE, a_field_names); |
150 | |
151 | if(a_state) { |
152 | g_string_append_printf(a_string, " %s", |
153 | g_quark_to_string(tfs->process->state->s); |
154 | } |
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155 | |
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156 | fputs(s, c->fd); |
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157 | return FALSE; |
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158 | } |
159 | |
160 | |
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161 | void lttv_event_to_string(LttEvent *e, LttTracefile *tf, g_string *s, |
162 | gboolean mandatory_fields, gboolean field_names) |
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163 | { |
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164 | LttFacility *facility; |
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165 | |
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166 | LttEventType *event_type; |
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167 | |
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168 | LttType *type; |
169 | |
170 | LttField *field; |
171 | |
172 | LttTime time; |
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173 | |
174 | g_string_set_size(s,0); |
175 | |
176 | facility = lttv_event_facility(e); |
177 | eventtype = ltt_event_eventtype(e); |
178 | field = ltt_event_field(e); |
179 | |
180 | if(mandatory_fields) { |
181 | time = ltt_event_time(e); |
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182 | g_string_append_printf(s,"%s.%s: %ld.%ld (%s)",ltt_facility_name(facility), |
183 | ltt_eventtype_name(eventtype), (long)time.tv_sec, time.tv_nsec, |
184 | ltt_tracefile_name(tf)); |
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185 | } |
186 | |
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187 | print_field(e,f,s, field_names); |
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188 | } |
189 | |
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190 | |
191 | void print_field(LttEvent *e, LttField *f, g_string *s, gboolean field_names) { |
192 | |
193 | LttType *type; |
194 | |
195 | LttField *element; |
196 | |
197 | char *name; |
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198 | |
199 | int nb, i; |
200 | |
201 | type = ltt_field_type(f); |
202 | switch(ltt_type_class(type)) { |
203 | case LTT_INT: |
204 | g_string_append_printf(s, " %ld", ltt_event_get_long_int(e,f)); |
205 | break; |
206 | |
207 | case LTT_UINT: |
208 | g_string_append_printf(s, " %lu", ltt_event_get_long_unsigned(e,f)); |
209 | break; |
210 | |
211 | case LTT_FLOAT: |
212 | g_string_append_printf(s, " %g", ltt_event_get_double(e,f)); |
213 | break; |
214 | |
215 | case LTT_STRING: |
216 | g_string_append_printf(s, " \"%s\"", ltt_event_get_string(e,f)); |
217 | break; |
218 | |
219 | case LTT_ENUM: |
220 | g_string_append_printf(s, " %s", ltt_enum_string_get(type, |
221 | event_get_unsigned(e,f)); |
222 | break; |
223 | |
224 | case LTT_ARRAY: |
225 | case LTT_SEQUENCE: |
226 | g_string_append_printf(s, " {"); |
227 | nb = ltt_event_field_element_number(e,f); |
228 | element = ltt_field_element(f); |
229 | for(i = 0 ; i < nb ; i++) { |
230 | ltt_event_field_element_select(e,f,i); |
231 | print_field(e,element,s); |
232 | } |
233 | g_string_append_printf(s, " }"); |
234 | break; |
235 | |
236 | case LTT_STRUCT: |
237 | g_string_append_printf(s, " {"); |
238 | nb = ltt_type_member_number(type); |
239 | for(i = 0 ; i < nb ; i++) { |
240 | element = ltt_field_member(f,i); |
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241 | if(name) { |
242 | ltt_type_member_type(type, &name); |
243 | g_string_append_printf(s, " %s = ", field_names); |
244 | } |
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245 | print_field(e,element,s); |
246 | } |
247 | g_string_append_printf(s, " }"); |
248 | break; |
249 | } |
250 | } |
251 | |
252 | |
253 | |
254 | |