1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
#include "rt-graph.h"
/**
* rt_graph_check_task_param - check for litmus_task_param record
* Return 1 and @pid, @wcet, and @period if the record matches
*/
int rt_graph_check_task_param(struct rt_graph_info *rtinfo,
struct pevent *pevent, struct record *record,
gint *pid, unsigned long long *wcet,
unsigned long long *period)
{
struct event_format *event;
unsigned long long val;
gint id;
int ret = 0;
/* Attempt to update record cache. It can only be updated
* after the pevent has "seen" its first litmus_task_param
* event.
*/
if (rtinfo->task_param_id < 0) {
event = pevent_find_event_by_name(pevent, "litmus",
"litmus_task_param");
if (!event)
return 0;
rtinfo->task_param_id = event->id;
rtinfo->param_pid_field = pevent_find_field(event, "pid");
rtinfo->param_wcet_field = pevent_find_field(event, "wcet");
rtinfo->param_period_field = pevent_find_field(event, "period");
}
id = pevent_data_type(pevent, record);
if (id == rtinfo->task_param_id) {
pevent_read_number_field(rtinfo->param_pid_field,
record->data, &val);
*pid = val;
pevent_read_number_field(rtinfo->param_wcet_field,
record->data, wcet);
pevent_read_number_field(rtinfo->param_period_field,
record->data, period);
ret = 1;
}
return ret;
}
/**
* rt_graph_check_task_release - check for litmus_task_release record
* Return 1 and @pid, @job, and @deadline if the record matches
*/
int rt_graph_check_task_release(struct rt_graph_info *rtinfo,
struct pevent *pevent, struct record *record,
gint *pid, gint *job,
unsigned long long *deadline)
{
struct event_format *event;
unsigned long long val;
gint id;
int ret = 0;
if (rtinfo->task_release_id < 0) {
event = pevent_find_event_by_name(pevent, "litmus",
"litmus_task_release");
if (!event)
return 0;
rtinfo->task_release_id = event->id;
rtinfo->release_pid_field = pevent_find_field(event, "pid");
rtinfo->release_job_field = pevent_find_field(event, "job");
rtinfo->release_deadline_field = pevent_find_field(event, "deadline");
}
id = pevent_data_type(pevent, record);
if (id == rtinfo->task_release_id) {
pevent_read_number_field(rtinfo->release_pid_field,
record->data, &val);
*pid = val;
pevent_read_number_field(rtinfo->release_job_field,
record->data, &val);
*job = val;
pevent_read_number_field(rtinfo->release_deadline_field,
record->data, deadline);
ret = 1;
}
return ret;
}
/**
* rt_graph_check_task_completion - check for litmus_task_completion record
* Return 1 and @pid, @job if the record matches
*/
int rt_graph_check_task_completion(struct rt_graph_info *rtinfo,
struct pevent *pevent, struct record *record,
gint *pid, gint *job)
{
struct event_format *event;
unsigned long long val;
gint id;
int ret = 0;
if (rtinfo->task_param_id < 0) {
event = pevent_find_event_by_name(pevent, "litmus",
"litmus_task_completion");
if (!event)
return 0;
rtinfo->task_completion_id = event->id;
rtinfo->completion_pid_field = pevent_find_field(event, "pid");
rtinfo->completion_job_field = pevent_find_field(event, "job");
}
id = pevent_data_type(pevent, record);
if (id == rtinfo->task_completion_id) {
pevent_read_number_field(rtinfo->completion_pid_field,
record->data, &val);
*pid = val;
pevent_read_number_field(rtinfo->completion_job_field,
record->data, &val);
*job = val;
ret = 1;
}
return ret;
}
/**
* rt_graph_check_task_block - check for litmus_task_block record
* Return 1 and @pid if the record matches
*/
int rt_graph_check_task_block(struct rt_graph_info *rtinfo,
struct pevent *pevent, struct record *record,
gint *pid)
{
struct event_format *event;
unsigned long long val;
gint id;
int ret = 0;
if (rtinfo->task_block_id < 0) {
event = pevent_find_event_by_name(pevent, "litmus",
"litmus_task_block");
if (!event)
return 0;
rtinfo->task_block_id = event->id;
rtinfo->block_pid_field = pevent_find_field(event, "pid");
}
id = pevent_data_type(pevent, record);
if (id == rtinfo->task_block_id) {
pevent_read_number_field(rtinfo->block_pid_field,
record->data, &val);
*pid = val;
ret = 1;
}
return ret;
}
/**
* rt_graph_check_task_release - check for litmus_task_release record
* Return 1 and @pid if the record matches
*/
int rt_graph_check_task_resume(struct rt_graph_info *rtinfo,
struct pevent *pevent, struct record *record,
gint *pid)
{
struct event_format *event;
unsigned long long val;
gint id;
int ret = 0;
if (rtinfo->task_resume_id < 0) {
event = pevent_find_event_by_name(pevent, "litmus",
"litmus_task_resume");
if (!event)
return 0;
rtinfo->task_resume_id = event->id;
rtinfo->resume_pid_field = pevent_find_field(event, "pid");
}
id = pevent_data_type(pevent, record);
if (id == rtinfo->task_resume_id) {
pevent_read_number_field(rtinfo->resume_pid_field,
record->data, &val);
*pid = val;
ret = 1;
}
return ret;
}
/**
* init_rt_event_cache - reset cached field values
*/
void init_rt_event_cache(struct rt_graph_info *rtinfo)
{
print("hello");
rtinfo->task_param_id = -1;
rtinfo->task_release_id = -1;
rtinfo->task_completion_id = -1;
rtinfo->task_block_id = -1;
rtinfo->task_resume_id = -1;
rtinfo->param_pid_field = NULL;
rtinfo->param_wcet_field = NULL;
rtinfo->param_period_field = NULL;
rtinfo->release_pid_field = NULL;
rtinfo->release_job_field = NULL;
rtinfo->release_deadline_field = NULL;
rtinfo->completion_pid_field = NULL;
rtinfo->completion_job_field = NULL;
rtinfo->block_pid_field = NULL;
rtinfo->resume_pid_field = NULL;
}
|
