fix add_proc with hostname
[lttngtop.git] / src / cputop.c
CommitLineData
1fc22eb4 1/*
aa15ac1c 2 * Copyright (C) 2011-2012 Julien Desfossez
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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 *
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13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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16 */
17
18#include <babeltrace/babeltrace.h>
19
20#include "lttngtoptypes.h"
21#include "common.h"
22#include "cputop.h"
23
24void update_cputop_data(unsigned long timestamp, int64_t cpu, int prev_pid,
906c08f6 25 int next_pid, char *prev_comm, char *next_comm, char *hostname)
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26{
27 struct cputime *tmpcpu;
28 unsigned long elapsed;
29
30 tmpcpu = get_cpu(cpu);
31
32 if (tmpcpu->current_task && tmpcpu->current_task->pid == prev_pid) {
33 elapsed = timestamp - tmpcpu->task_start;
34 tmpcpu->current_task->totalcpunsec += elapsed;
35 tmpcpu->current_task->threadstotalcpunsec += elapsed;
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36 if (tmpcpu->current_task->threadparent &&
37 tmpcpu->current_task->pid != tmpcpu->current_task->tid)
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38 tmpcpu->current_task->threadparent->threadstotalcpunsec += elapsed;
39 }
40
41 if (next_pid != 0)
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42 tmpcpu->current_task = get_proc(&lttngtop, next_pid, next_comm,
43 timestamp, hostname);
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44 else
45 tmpcpu->current_task = NULL;
46
47 tmpcpu->task_start = timestamp;
48}
49
4adc8274 50enum bt_cb_ret handle_sched_switch(struct bt_ctf_event *call_data,
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51 void *private_data)
52{
2e0a1190 53 const struct bt_definition *scope;
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54 unsigned long timestamp;
55 uint64_t cpu_id;
56 char *prev_comm, *next_comm;
57 int prev_tid, next_tid;
1d2391b4 58 char *hostname = NULL;
1fc22eb4 59
c78f2cdc 60 timestamp = bt_ctf_get_timestamp(call_data);
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61 if (timestamp == -1ULL)
62 goto error;
63
64 scope = bt_ctf_get_top_level_scope(call_data,
65 BT_EVENT_FIELDS);
66 prev_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
67 scope, "_prev_comm"));
68 if (bt_ctf_field_get_error()) {
69 fprintf(stderr, "Missing prev_comm context info\n");
70 goto error;
71 }
72
73 next_comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
74 scope, "_next_comm"));
75 if (bt_ctf_field_get_error()) {
76 fprintf(stderr, "Missing next_comm context info\n");
77 goto error;
78 }
79
80 prev_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
81 scope, "_prev_tid"));
82 if (bt_ctf_field_get_error()) {
83 fprintf(stderr, "Missing prev_tid context info\n");
84 goto error;
85 }
86
87 next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
88 scope, "_next_tid"));
89 if (bt_ctf_field_get_error()) {
90 fprintf(stderr, "Missing next_tid context info\n");
91 goto error;
92 }
93
d67167cd 94 cpu_id = get_cpu_id(call_data);
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95
96 update_cputop_data(timestamp, cpu_id, prev_tid, next_tid,
906c08f6 97 prev_comm, next_comm, hostname);
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98
99 return BT_CB_OK;
100
101error:
102 return BT_CB_ERROR_STOP;
103}
104
4adc8274 105enum bt_cb_ret handle_sched_process_free(struct bt_ctf_event *call_data,
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106 void *private_data)
107{
2e0a1190 108 const struct bt_definition *scope;
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109 unsigned long timestamp;
110 char *comm;
111 int tid;
112
c78f2cdc 113 timestamp = bt_ctf_get_timestamp(call_data);
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114 if (timestamp == -1ULL)
115 goto error;
116
117 scope = bt_ctf_get_top_level_scope(call_data,
118 BT_EVENT_FIELDS);
119 comm = bt_ctf_get_char_array(bt_ctf_get_field(call_data,
120 scope, "_comm"));
121 if (bt_ctf_field_get_error()) {
122 fprintf(stderr, "Missing procname context info\n");
123 goto error;
124 }
125
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126 tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
127 scope, "_tid"));
128 if (bt_ctf_field_get_error()) {
129 fprintf(stderr, "Missing tid field\n");
130 goto error;
131 }
132
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133 death_proc(&lttngtop, tid, comm, timestamp);
134
135 return BT_CB_OK;
136
137error:
138 return BT_CB_ERROR_STOP;
139
140}
141
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