| 1 | /* A trace is a sequence of events gathered in the same tracing session. The |
| 2 | events may be stored in several tracefiles in the same directory. |
| 3 | A trace set is defined when several traces are to be analyzed together, |
| 4 | possibly to study the interactions between events in the different traces. |
| 5 | */ |
| 6 | |
| 7 | struct _lttv_trace_set { |
| 8 | GPtrArray *traces; |
| 9 | GPtrArray *attributes; |
| 10 | lttv_attributes *a; |
| 11 | }; |
| 12 | |
| 13 | |
| 14 | lttv_trace_set *lttv_trace_set_new() |
| 15 | { |
| 16 | lttv_trace_set s; |
| 17 | |
| 18 | s = g_new(lttv_trace_set, 1); |
| 19 | s->traces = g_ptr_array_new(); |
| 20 | s->attributes = g_ptr_array_new(); |
| 21 | s->a = lttv_attributes_new(); |
| 22 | } |
| 23 | |
| 24 | lttv_trace_set *lttv_trace_set_destroy(lttv_trace_set *s) |
| 25 | { |
| 26 | int i, nb; |
| 27 | |
| 28 | for(i = 0 ; i < s->attributes->len ; i++) { |
| 29 | lttv_attributes_destroy((lttv_attributes *)s->attributes->pdata[i]); |
| 30 | } |
| 31 | g_ptr_array_free(s->attributes); |
| 32 | g_ptr_array_free(s->traces); |
| 33 | lttv_attributes_destroy(s->a); |
| 34 | return g_free(s); |
| 35 | } |
| 36 | |
| 37 | void lttv_trace_set_add(lttv_trace_set *s, lttv_trace *t) |
| 38 | { |
| 39 | g_ptr_array_add(s,t); |
| 40 | g_ptr_array_add(s,lttv_attributes_new()); |
| 41 | } |
| 42 | |
| 43 | unsigned lttv_trace_set_number(lttv_trace_set *s) |
| 44 | { |
| 45 | return s->traces.len; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | lttv_trace *lttv_trace_set_get(lttv_trace_set *s, unsigned i) |
| 50 | { |
| 51 | g_assert(s->traces->len <= i); |
| 52 | return s->traces.pdata[i]; |
| 53 | } |
| 54 | |
| 55 | |
| 56 | lttv_trace *lttv_trace_set_remove(lttv_trace_set *s, unsigned i) |
| 57 | { |
| 58 | return g_ptr_array_remove_index(s->traces,i); |
| 59 | lttv_attributes_destroy(g_ptr_array_remove_index(s->attributes,i)); |
| 60 | } |
| 61 | |
| 62 | |
| 63 | /* A set of attributes is attached to each trace set, trace and tracefile |
| 64 | to store user defined data as needed. */ |
| 65 | |
| 66 | lttv_attributes *lttv_trace_set_attributes(lttv_trace_set *s) |
| 67 | { |
| 68 | return s->a; |
| 69 | } |
| 70 | |
| 71 | lttv_attributes *lttv_trace_set_trace_attributes(lttv_trace_set *s, unsigned i) |
| 72 | { |
| 73 | return t->a; |
| 74 | } |
| 75 | |
| 76 | lttv_attributes *lttv_tracefile_attributes(lttv_tracefile *tf) { |
| 77 | return (lttv_attributes *)s->attributes->pdata[i]; |
| 78 | } |
| 79 | |
| 80 | |
| 81 | static void lttv_analyse_trace(lttv_trace *t); |
| 82 | |
| 83 | static void lttv_analyse_tracefile(lttv_tracefile *t); |
| 84 | |
| 85 | lttv_trace_set_process(lttv_trace_set *s, ltt_time start, ltt_time end) |
| 86 | { |
| 87 | int i, nb; |
| 88 | lttv_hooks *before, *after; |
| 89 | lttv_attributes *a; |
| 90 | ltt_trace *t; |
| 91 | lttv_filter *filter_data; |
| 92 | |
| 93 | a = lttv_trace_set_attributes(s); |
| 94 | before = (lttv_hooks*)lttv_attributes_get_pointer_pathname(a,"hooks/before"); |
| 95 | after = (lttv_hooks*)lttv_attributes_get_pointer_pathname(a,"hooks/after"); |
| 96 | nb = lttv_trace_set_number(s); |
| 97 | |
| 98 | lttv_hooks_call(before, s); |
| 99 | |
| 100 | for(i = 0; i < nb; i++) { |
| 101 | t = lttv_trace_set_get(s,i); |
| 102 | a = lttv_trace_set_trace_attributes(s,i); |
| 103 | lttv_analyse_trace(t, a, start, end); |
| 104 | } |
| 105 | |
| 106 | lttv_hooks_call(after, s); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | static void lttv_analyse_trace(ltt_trace *t, lttv_attributes *a, |
| 111 | ltt_time start, ltt_time end) |
| 112 | { |
| 113 | int i, nb_all_cpu, nb_per_cpu; |
| 114 | lttv_hooks *before, *after; |
| 115 | |
| 116 | before = (lttv_hooks*)lttv_attributes_get_pointer_pathname(a,"hooks/before"); |
| 117 | after = (lttv_hooks*)lttv_attributes_get_pointer_pathname(a,"hooks/after"); |
| 118 | |
| 119 | nb_all_cpu = ltt_trace_tracefile_number_all_cpu(t); |
| 120 | nb_per_cpu = ltt_trace_tracefile_number_per_cpu(t); |
| 121 | |
| 122 | lttv_hooks_call(before, t); |
| 123 | |
| 124 | for(i = 0; i < nb_all_cpu; i++) { |
| 125 | lttv_analyse_tracefile(ltt_trace_get_all_cpu(t,i), a, start, end); |
| 126 | } |
| 127 | |
| 128 | for(i = 0; i < nb_per_cpu; i++) { |
| 129 | lttv_analyse_tracefile(ltt_trace_get_per_cpu(t,i), a, start, end); |
| 130 | } |
| 131 | |
| 132 | lttv_hooks_call(after, t); |
| 133 | } |
| 134 | |
| 135 | |
| 136 | static void lttv_analyse_tracefile(ltt_tracefile *t, lttv_attributes *a, |
| 137 | ltt_time start, ltt_time end) |
| 138 | { |
| 139 | ltt_event *event; |
| 140 | unsigned id; |
| 141 | lttv_hooks *before, *after, *event_hooks, *tracefile_check, *event_check; |
| 142 | lttv_hooks_by_id *event_hooks_by_id; |
| 143 | lttv_attributes *a; |
| 144 | |
| 145 | before = (lttv_hooks *)lttv_attributes_get_pointer_pathname(a, |
| 146 | "hooks/tracefile/before"); |
| 147 | after = (lttv_hooks *)lttv_attributes_get_pointer_pathname(a, |
| 148 | "hooks/tracefile/after"); |
| 149 | event_hooks = (lttv_hooks*)lttv_attributes_get_pointer_pathname(a, |
| 150 | "hooks/event/selected"); |
| 151 | event_hooks_by_id = (lttv_hooks_by_id*) |
| 152 | lttv_attributes_get_pointer_pathname(a, "hooks/event/byid"); |
| 153 | tracefile_check = (lttv_hooks *)lttv_attributes_get_pointer_pathname(a, |
| 154 | "hooks/tracefile/check"); |
| 155 | event_check = (lttv_hooks *)lttv_attributes_get_pointer_pathname(a, |
| 156 | "hooks/event/check"); |
| 157 | |
| 158 | lttv_hooks_call(before, t); |
| 159 | |
| 160 | if(lttv_hooks_call_check(tracefile_check,t) && |
| 161 | ( lttv_hooks_number(event_hooks) != 0 || |
| 162 | lttv_hooks_by_id_number(event_hooks_by_id) != 0) { |
| 163 | |
| 164 | ltt_tracefile_seek_time(t, start); |
| 165 | while((event = ltt_tracefile_read(t)) != NULL && |
| 166 | ltt_event_time(event) < end) { |
| 167 | if(lttv_hooks_call_check(event_check)) { |
| 168 | lttv_hooks_call(event_hooks,event); |
| 169 | lttv_hooks_by_id_call(event_hooks_by_id,event, |
| 170 | ltt_event_type_id(event)); |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | lttv_hooks_call(after, t); |
| 175 | } |
| 176 | |
| 177 | |
| 178 | |