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1fc22eb4 JD |
1 | /* |
2 | * Copyright (C) 2011 Julien Desfossez | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #include <babeltrace/babeltrace.h> | |
20 | ||
21 | #include "lttngtoptypes.h" | |
22 | #include "common.h" | |
23 | #include "cputop.h" | |
24 | ||
25 | void update_cputop_data(unsigned long timestamp, int64_t cpu, int prev_pid, | |
26 | int next_pid, char *prev_comm, char *next_comm) | |
27 | { | |
28 | struct cputime *tmpcpu; | |
29 | unsigned long elapsed; | |
30 | ||
31 | tmpcpu = get_cpu(cpu); | |
32 | ||
33 | if (tmpcpu->current_task && tmpcpu->current_task->pid == prev_pid) { | |
34 | elapsed = timestamp - tmpcpu->task_start; | |
35 | tmpcpu->current_task->totalcpunsec += elapsed; | |
36 | tmpcpu->current_task->threadstotalcpunsec += elapsed; | |
37 | if (tmpcpu->current_task->pid != tmpcpu->current_task->tid) | |
38 | tmpcpu->current_task->threadparent->threadstotalcpunsec += elapsed; | |
39 | } | |
40 | ||
41 | if (next_pid != 0) | |
42 | tmpcpu->current_task = get_proc(<tngtop, next_pid, next_comm, timestamp); | |
43 | else | |
44 | tmpcpu->current_task = NULL; | |
45 | ||
46 | tmpcpu->task_start = timestamp; | |
47 | } | |
48 | ||
49 | enum bt_cb_ret handle_sched_switch(struct bt_ctf_event *call_data, | |
50 | void *private_data) | |
51 | { | |
52 | struct definition *scope; | |
53 | unsigned long timestamp; | |
54 | uint64_t cpu_id; | |
55 | char *prev_comm, *next_comm; | |
56 | int prev_tid, next_tid; | |
57 | ||
58 | timestamp = bt_ctf_get_timestamp(call_data); | |
59 | if (timestamp == -1ULL) | |
60 | goto error; | |
61 | ||
62 | scope = bt_ctf_get_top_level_scope(call_data, | |
63 | BT_EVENT_FIELDS); | |
64 | prev_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data, | |
65 | scope, "_prev_comm")); | |
66 | if (bt_ctf_field_get_error()) { | |
67 | fprintf(stderr, "Missing prev_comm context info\n"); | |
68 | goto error; | |
69 | } | |
70 | ||
71 | next_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data, | |
72 | scope, "_next_comm")); | |
73 | if (bt_ctf_field_get_error()) { | |
74 | fprintf(stderr, "Missing next_comm context info\n"); | |
75 | goto error; | |
76 | } | |
77 | ||
78 | prev_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data, | |
79 | scope, "_prev_tid")); | |
80 | if (bt_ctf_field_get_error()) { | |
81 | fprintf(stderr, "Missing prev_tid context info\n"); | |
82 | goto error; | |
83 | } | |
84 | ||
85 | next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data, | |
86 | scope, "_next_tid")); | |
87 | if (bt_ctf_field_get_error()) { | |
88 | fprintf(stderr, "Missing next_tid context info\n"); | |
89 | goto error; | |
90 | } | |
91 | ||
d67167cd | 92 | cpu_id = get_cpu_id(call_data); |
1fc22eb4 JD |
93 | |
94 | update_cputop_data(timestamp, cpu_id, prev_tid, next_tid, | |
95 | prev_comm, next_comm); | |
96 | ||
97 | return BT_CB_OK; | |
98 | ||
99 | error: | |
100 | return BT_CB_ERROR_STOP; | |
101 | } | |
102 | ||
103 | enum bt_cb_ret handle_sched_process_free(struct bt_ctf_event *call_data, | |
104 | void *private_data) | |
105 | { | |
106 | struct definition *scope; | |
107 | unsigned long timestamp; | |
108 | char *comm; | |
109 | int tid; | |
110 | ||
111 | timestamp = bt_ctf_get_timestamp(call_data); | |
112 | if (timestamp == -1ULL) | |
113 | goto error; | |
114 | ||
115 | scope = bt_ctf_get_top_level_scope(call_data, | |
116 | BT_EVENT_FIELDS); | |
117 | comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data, | |
118 | scope, "_comm")); | |
119 | if (bt_ctf_field_get_error()) { | |
120 | fprintf(stderr, "Missing procname context info\n"); | |
121 | goto error; | |
122 | } | |
123 | ||
124 | tid = bt_ctf_get_int64(bt_ctf_get_field(call_data, | |
125 | scope, "_tid")); | |
126 | if (bt_ctf_field_get_error()) { | |
127 | fprintf(stderr, "Missing tid context info\n"); | |
128 | goto error; | |
129 | } | |
130 | ||
131 | death_proc(<tngtop, tid, comm, timestamp); | |
132 | ||
133 | return BT_CB_OK; | |
134 | ||
135 | error: | |
136 | return BT_CB_ERROR_STOP; | |
137 | ||
138 | } | |
139 |