| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2003-2004 Michel Dagenais |
| 3 | * Copyright (C) 2012 Yannick Brosseau |
| 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 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <lttv/traceset-process.h> |
| 24 | #include <lttv/traceset.h> |
| 25 | #include <lttv/event.h> |
| 26 | #include <babeltrace/context.h> |
| 27 | #include <babeltrace/iterator.h> |
| 28 | |
| 29 | #include <babeltrace/ctf/events.h> |
| 30 | #include <babeltrace/ctf/iterator.h> |
| 31 | |
| 32 | void lttv_process_traceset_begin(LttvTraceset *traceset, |
| 33 | LttvHooks *before_traceset, |
| 34 | LttvHooks *before_trace, |
| 35 | LttvHooks *event) |
| 36 | { |
| 37 | struct bt_iter_pos begin_pos; |
| 38 | /* simply add hooks in context. _before hooks are called by add_hooks. */ |
| 39 | /* It calls all before_traceset, before_trace, and before_tracefile hooks. */ |
| 40 | lttv_traceset_add_hooks(traceset, |
| 41 | before_traceset, |
| 42 | before_trace, |
| 43 | event); |
| 44 | |
| 45 | |
| 46 | |
| 47 | begin_pos.type = BT_SEEK_BEGIN; |
| 48 | |
| 49 | if(!traceset->iter) { |
| 50 | traceset->iter = bt_ctf_iter_create(lttv_traceset_get_context(traceset), |
| 51 | &begin_pos, |
| 52 | NULL); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | guint lttv_process_traceset_middle(LttvTraceset *traceset, |
| 57 | LttTime end, |
| 58 | gulong nb_events, |
| 59 | const LttvTracesetPosition *end_position) |
| 60 | { |
| 61 | |
| 62 | unsigned count = 0; |
| 63 | |
| 64 | struct bt_ctf_event *bt_event; |
| 65 | |
| 66 | LttvEvent event; |
| 67 | |
| 68 | while(TRUE) { |
| 69 | |
| 70 | if((count >= nb_events) && (nb_events != G_MAXULONG)) { |
| 71 | break; |
| 72 | } |
| 73 | |
| 74 | if((bt_event = bt_ctf_iter_read_event(traceset->iter)) != NULL) { |
| 75 | |
| 76 | count++; |
| 77 | |
| 78 | event.bt_event = bt_event; |
| 79 | |
| 80 | /* Retreive the associated state */ |
| 81 | event.state = g_ptr_array_index(traceset->state_trace_handle_index, |
| 82 | bt_ctf_event_get_handle_id(bt_event)); |
| 83 | |
| 84 | lttv_hooks_call(traceset->event_hooks, &event); |
| 85 | |
| 86 | if(bt_iter_next(bt_ctf_get_iter(traceset->iter)) < 0) { |
| 87 | printf("ERROR NEXT\n"); |
| 88 | break; |
| 89 | } |
| 90 | } else { |
| 91 | /* READ FAILED */ |
| 92 | |
| 93 | break; |
| 94 | |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | |
| 99 | |
| 100 | return count; |
| 101 | } |
| 102 | |
| 103 | void lttv_process_traceset_end(LttvTraceset *traceset, |
| 104 | LttvHooks *after_traceset, |
| 105 | LttvHooks *after_trace, |
| 106 | LttvHooks *event) |
| 107 | { |
| 108 | /* Remove hooks from context. _after hooks are called by remove_hooks. */ |
| 109 | /* It calls all after_traceset, after_trace, and after_tracefile hooks. */ |
| 110 | lttv_traceset_remove_hooks(traceset, |
| 111 | after_traceset, |
| 112 | after_trace, |
| 113 | event); |
| 114 | |
| 115 | } |
| 116 | |
| 117 | |
| 118 | void lttv_traceset_add_hooks(LttvTraceset *traceset, |
| 119 | LttvHooks *before_traceset, |
| 120 | LttvHooks *before_trace, |
| 121 | LttvHooks *event) |
| 122 | { |
| 123 | |
| 124 | guint i, nb_trace; |
| 125 | |
| 126 | LttvTrace *trace; |
| 127 | |
| 128 | lttv_hooks_call(before_traceset, traceset); |
| 129 | |
| 130 | lttv_hooks_add_list(traceset->event_hooks, event); |
| 131 | |
| 132 | nb_trace = lttv_traceset_number(traceset); |
| 133 | |
| 134 | for(i = 0 ; i < nb_trace ; i++) { |
| 135 | trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i); |
| 136 | lttv_trace_add_hooks(trace, |
| 137 | before_trace, |
| 138 | event |
| 139 | ); |
| 140 | } |
| 141 | } |
| 142 | void lttv_traceset_remove_hooks(LttvTraceset *traceset, |
| 143 | LttvHooks *after_traceset, |
| 144 | LttvHooks *after_trace, |
| 145 | LttvHooks *event) |
| 146 | { |
| 147 | |
| 148 | guint i, nb_trace; |
| 149 | |
| 150 | LttvTrace *trace; |
| 151 | |
| 152 | nb_trace = lttv_traceset_number(traceset); |
| 153 | |
| 154 | for(i = 0 ; i < nb_trace ; i++) { |
| 155 | trace = (LttvTrace *)g_ptr_array_index(traceset->traces,i); |
| 156 | lttv_trace_remove_hooks(trace, |
| 157 | after_trace, |
| 158 | event); |
| 159 | |
| 160 | } |
| 161 | |
| 162 | lttv_hooks_call(after_traceset, traceset); |
| 163 | |
| 164 | |
| 165 | } |
| 166 | |
| 167 | |
| 168 | void lttv_trace_add_hooks(LttvTrace *trace, |
| 169 | LttvHooks *before_trace, |
| 170 | LttvHooks *event) |
| 171 | { |
| 172 | lttv_hooks_call(before_trace, trace); |
| 173 | } |
| 174 | |
| 175 | void lttv_trace_remove_hooks(LttvTrace *trace, |
| 176 | LttvHooks *after_trace, |
| 177 | LttvHooks *event) |
| 178 | |
| 179 | { |
| 180 | lttv_hooks_call(after_trace, trace); |
| 181 | |
| 182 | } |
| 183 | |
| 184 | void lttv_process_traceset_seek_time(LttvTraceset *traceset, LttTime start) |
| 185 | { |
| 186 | struct bt_iter_pos seekpos; |
| 187 | int ret; |
| 188 | if (traceset->iter == NULL) { |
| 189 | g_warning("Iterator not valid in seek_time"); |
| 190 | return; |
| 191 | } |
| 192 | seekpos.type = BT_SEEK_TIME; |
| 193 | seekpos.u.seek_time = ltt_time_to_uint64(start); |
| 194 | |
| 195 | ret = bt_iter_set_pos(bt_ctf_get_iter(traceset->iter), &seekpos); |
| 196 | if(ret < 0) { |
| 197 | printf("Seek by time error: %s,\n",strerror(-ret)); |
| 198 | } |
| 199 | |
| 200 | } |