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
6 #include <lttv/option.h>
7 #include <lttv/module.h>
9 #include <lttv/attribute.h>
10 #include <lttv/iattribute.h>
11 #include <lttv/state.h>
13 #include <ltt/event.h>
15 #include <ltt/trace.h>
32 void print_field(LttEvent
*e
, LttField
*f
, GString
*s
, gboolean field_names
) {
42 type
= ltt_field_type(f
);
43 switch(ltt_type_class(type
)) {
45 g_string_append_printf(s
, " %ld", ltt_event_get_long_int(e
,f
));
49 g_string_append_printf(s
, " %lu", ltt_event_get_long_unsigned(e
,f
));
53 g_string_append_printf(s
, " %g", ltt_event_get_double(e
,f
));
57 g_string_append_printf(s
, " \"%s\"", ltt_event_get_string(e
,f
));
61 g_string_append_printf(s
, " %s", ltt_enum_string_get(type
,
62 ltt_event_get_unsigned(e
,f
)-1));
67 g_string_append_printf(s
, " {");
68 nb
= ltt_event_field_element_number(e
,f
);
69 element
= ltt_field_element(f
);
70 for(i
= 0 ; i
< nb
; i
++) {
71 ltt_event_field_element_select(e
,f
,i
);
72 print_field(e
, element
, s
, field_names
);
74 g_string_append_printf(s
, " }");
78 g_string_append_printf(s
, " {");
79 nb
= ltt_type_member_number(type
);
80 for(i
= 0 ; i
< nb
; i
++) {
81 element
= ltt_field_member(f
,i
);
83 ltt_type_member_type(type
, i
, &name
);
84 g_string_append_printf(s
, " %s = ", name
);
86 print_field(e
, element
, s
, field_names
);
88 g_string_append_printf(s
, " }");
94 void lttv_event_to_string(LttEvent
*e
, LttTracefile
*tf
, GString
*s
,
95 gboolean mandatory_fields
, gboolean field_names
, LttvTracefileState
*tfs
)
97 LttFacility
*facility
;
99 LttEventType
*event_type
;
107 g_string_set_size(s
,0);
109 facility
= ltt_event_facility(e
);
110 event_type
= ltt_event_eventtype(e
);
111 field
= ltt_event_field(e
);
113 if(mandatory_fields
) {
114 time
= ltt_event_time(e
);
115 g_string_append_printf(s
,"%s.%s: %ld.%ld (%s)",ltt_facility_name(facility
),
116 ltt_eventtype_name(event_type
), (long)time
.tv_sec
, time
.tv_nsec
,
117 ltt_tracefile_name(tf
));
118 /* Print the process id and the state/interrupt type of the process */
119 g_string_append_printf(s
,", %u, %u, %s", tfs
->process
->pid
,
121 g_quark_to_string(tfs
->process
->state
->t
));
125 print_field(e
, field
, s
, field_names
);
129 /* Insert the hooks before and after each trace and tracefile, and for each
130 event. Print a global header. */
134 static GString
*a_string
;
136 static gboolean
write_traceset_header(void *hook_data
, void *call_data
)
138 LttvTracesetContext
*tc
= (LttvTracesetContext
*)call_data
;
140 if(a_file_name
== NULL
) a_file
= stdout
;
141 else a_file
= fopen(a_file_name
, "w");
143 if(a_file
== NULL
) g_error("cannot open file %s", a_file_name
);
145 /* Print the trace set header */
146 fprintf(a_file
,"Trace set contains %d traces\n\n",
147 lttv_traceset_number(tc
->ts
));
153 static gboolean
write_traceset_footer(void *hook_data
, void *call_data
)
155 LttvTracesetContext
*tc
= (LttvTracesetContext
*)call_data
;
157 fprintf(a_file
,"End trace set\n\n");
159 if(a_file_name
!= NULL
) fclose(a_file
);
165 static gboolean
write_trace_header(void *hook_data
, void *call_data
)
167 LttvTraceContext
*tc
= (LttvTraceContext
*)call_data
;
169 LttSystemDescription
*system
= ltt_trace_system_description(tc
->t
);
171 fprintf(a_file
," Trace from %s in %s\n%s\n\n", system
->node_name
,
172 system
->domain_name
, system
->description
);
177 static int write_event_content(void *hook_data
, void *call_data
)
179 LttvTracefileContext
*tfc
= (LttvTracefileContext
*)call_data
;
181 LttvTracefileState
*tfs
= (LttvTracefileState
*)call_data
;
187 lttv_event_to_string(e
, tfc
->tf
, a_string
, TRUE
, a_field_names
, tfs
);
188 g_string_append_printf(a_string
,"\n");
191 g_string_append_printf(a_string
, " %s",
192 g_quark_to_string(tfs
->process
->state
->s
));
195 fputs(a_string
->str
, a_file
);
200 G_MODULE_EXPORT
void init(LttvModule
*self
, int argc
, char **argv
)
202 LttvAttributeValue value
;
204 LttvIAttribute
*attributes
= LTTV_IATTRIBUTE(lttv_global_attributes());
206 LttvModule
*batchAnalysis
=
207 lttv_module_require(self
, "batchAnalysis", argc
, argv
);
209 if(batchAnalysis
== NULL
)
211 g_error("Can't load required module batchAnalysis");
216 a_string
= g_string_new("");
219 lttv_option_add("output", 'o',
220 "output file where the text is written",
222 LTTV_OPT_STRING
, &a_file_name
, NULL
, NULL
);
224 a_field_names
= FALSE
;
225 lttv_option_add("field_names", 'l',
226 "write the field names for each event",
228 LTTV_OPT_NONE
, &a_field_names
, NULL
, NULL
);
231 lttv_option_add("process_state", 's',
232 "write the pid and state for each event",
234 LTTV_OPT_NONE
, &a_state
, NULL
, NULL
);
236 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/event/before",
237 LTTV_POINTER
, &value
));
238 g_assert((before_event
= *(value
.v_pointer
)) != NULL
);
239 lttv_hooks_add(before_event
, write_event_content
, NULL
);
241 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/trace/before",
242 LTTV_POINTER
, &value
));
243 g_assert((before_trace
= *(value
.v_pointer
)) != NULL
);
244 lttv_hooks_add(before_trace
, write_trace_header
, NULL
);
246 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/traceset/before",
247 LTTV_POINTER
, &value
));
248 g_assert((before_traceset
= *(value
.v_pointer
)) != NULL
);
249 lttv_hooks_add(before_traceset
, write_traceset_header
, NULL
);
251 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/traceset/after",
252 LTTV_POINTER
, &value
));
253 g_assert((after_traceset
= *(value
.v_pointer
)) != NULL
);
254 lttv_hooks_add(after_traceset
, write_traceset_footer
, NULL
);
258 G_MODULE_EXPORT
void destroy()
260 lttv_option_remove("output");
262 lttv_option_remove("field_names");
264 lttv_option_remove("process_state");
266 g_string_free(a_string
, TRUE
);
268 lttv_hooks_remove_data(before_event
, write_event_content
, NULL
);
270 lttv_hooks_remove_data(before_trace
, write_trace_header
, NULL
);
272 lttv_hooks_remove_data(before_trace
, write_traceset_header
, NULL
);
274 lttv_hooks_remove_data(before_trace
, write_traceset_footer
, NULL
);