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bb3dd7e7 TS |
1 | // SPDX-License-Identifier: LGPL-2.1 |
2 | /* | |
3 | * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> | |
4 | * | |
5 | */ | |
6 | ||
7 | #include "event-parse.h" | |
8 | #include "event-parse-local.h" | |
9 | #include "event-utils.h" | |
10 | ||
11 | /** | |
12 | * tep_get_first_event - returns the first event in the events array | |
13 | * @tep: a handle to the tep_handle | |
14 | * | |
15 | * This returns pointer to the first element of the events array | |
16 | * If @tep is NULL, NULL is returned. | |
17 | */ | |
18 | struct tep_event_format *tep_get_first_event(struct tep_handle *tep) | |
19 | { | |
20 | if (tep && tep->events) | |
21 | return tep->events[0]; | |
22 | ||
23 | return NULL; | |
24 | } | |
25 | ||
26 | /** | |
27 | * tep_get_events_count - get the number of defined events | |
28 | * @tep: a handle to the tep_handle | |
29 | * | |
30 | * This returns number of elements in event array | |
31 | * If @tep is NULL, 0 is returned. | |
32 | */ | |
33 | int tep_get_events_count(struct tep_handle *tep) | |
34 | { | |
35 | if(tep) | |
36 | return tep->nr_events; | |
37 | return 0; | |
38 | } | |
39 | ||
40 | /** | |
41 | * tep_set_flag - set event parser flag | |
42 | * @tep: a handle to the tep_handle | |
43 | * @flag: flag, or combination of flags to be set | |
44 | * can be any combination from enum tep_flag | |
45 | * | |
46 | * This sets a flag or mbination of flags from enum tep_flag | |
47 | */ | |
48 | void tep_set_flag(struct tep_handle *tep, int flag) | |
49 | { | |
50 | if(tep) | |
51 | tep->flags |= flag; | |
52 | } | |
53 | ||
54 | unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data) | |
55 | { | |
56 | unsigned short swap; | |
57 | ||
58 | if (!pevent || pevent->host_bigendian == pevent->file_bigendian) | |
59 | return data; | |
60 | ||
61 | swap = ((data & 0xffULL) << 8) | | |
62 | ((data & (0xffULL << 8)) >> 8); | |
63 | ||
64 | return swap; | |
65 | } | |
66 | ||
67 | unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data) | |
68 | { | |
69 | unsigned int swap; | |
70 | ||
71 | if (!pevent || pevent->host_bigendian == pevent->file_bigendian) | |
72 | return data; | |
73 | ||
74 | swap = ((data & 0xffULL) << 24) | | |
75 | ((data & (0xffULL << 8)) << 8) | | |
76 | ((data & (0xffULL << 16)) >> 8) | | |
77 | ((data & (0xffULL << 24)) >> 24); | |
78 | ||
79 | return swap; | |
80 | } | |
81 | ||
82 | unsigned long long | |
83 | __tep_data2host8(struct tep_handle *pevent, unsigned long long data) | |
84 | { | |
85 | unsigned long long swap; | |
86 | ||
87 | if (!pevent || pevent->host_bigendian == pevent->file_bigendian) | |
88 | return data; | |
89 | ||
90 | swap = ((data & 0xffULL) << 56) | | |
91 | ((data & (0xffULL << 8)) << 40) | | |
92 | ((data & (0xffULL << 16)) << 24) | | |
93 | ((data & (0xffULL << 24)) << 8) | | |
94 | ((data & (0xffULL << 32)) >> 8) | | |
95 | ((data & (0xffULL << 40)) >> 24) | | |
96 | ((data & (0xffULL << 48)) >> 40) | | |
97 | ((data & (0xffULL << 56)) >> 56); | |
98 | ||
99 | return swap; | |
100 | } | |
101 | ||
102 | /** | |
103 | * tep_get_header_page_size - get size of the header page | |
104 | * @pevent: a handle to the tep_handle | |
105 | * | |
106 | * This returns size of the header page | |
107 | * If @pevent is NULL, 0 is returned. | |
108 | */ | |
109 | int tep_get_header_page_size(struct tep_handle *pevent) | |
110 | { | |
111 | if(pevent) | |
112 | return pevent->header_page_size_size; | |
113 | return 0; | |
114 | } | |
115 | ||
116 | /** | |
117 | * tep_get_cpus - get the number of CPUs | |
118 | * @pevent: a handle to the tep_handle | |
119 | * | |
120 | * This returns the number of CPUs | |
121 | * If @pevent is NULL, 0 is returned. | |
122 | */ | |
123 | int tep_get_cpus(struct tep_handle *pevent) | |
124 | { | |
125 | if(pevent) | |
126 | return pevent->cpus; | |
127 | return 0; | |
128 | } | |
129 | ||
130 | /** | |
131 | * tep_set_cpus - set the number of CPUs | |
132 | * @pevent: a handle to the tep_handle | |
133 | * | |
134 | * This sets the number of CPUs | |
135 | */ | |
136 | void tep_set_cpus(struct tep_handle *pevent, int cpus) | |
137 | { | |
138 | if(pevent) | |
139 | pevent->cpus = cpus; | |
140 | } | |
141 | ||
142 | /** | |
143 | * tep_get_long_size - get the size of a long integer on the current machine | |
144 | * @pevent: a handle to the tep_handle | |
145 | * | |
146 | * This returns the size of a long integer on the current machine | |
147 | * If @pevent is NULL, 0 is returned. | |
148 | */ | |
149 | int tep_get_long_size(struct tep_handle *pevent) | |
150 | { | |
151 | if(pevent) | |
152 | return pevent->long_size; | |
153 | return 0; | |
154 | } | |
155 | ||
156 | /** | |
157 | * tep_set_long_size - set the size of a long integer on the current machine | |
158 | * @pevent: a handle to the tep_handle | |
159 | * @size: size, in bytes, of a long integer | |
160 | * | |
161 | * This sets the size of a long integer on the current machine | |
162 | */ | |
163 | void tep_set_long_size(struct tep_handle *pevent, int long_size) | |
164 | { | |
165 | if(pevent) | |
166 | pevent->long_size = long_size; | |
167 | } | |
168 | ||
169 | /** | |
170 | * tep_get_page_size - get the size of a memory page on the current machine | |
171 | * @pevent: a handle to the tep_handle | |
172 | * | |
173 | * This returns the size of a memory page on the current machine | |
174 | * If @pevent is NULL, 0 is returned. | |
175 | */ | |
176 | int tep_get_page_size(struct tep_handle *pevent) | |
177 | { | |
178 | if(pevent) | |
179 | return pevent->page_size; | |
180 | return 0; | |
181 | } | |
182 | ||
183 | /** | |
184 | * tep_set_page_size - set the size of a memory page on the current machine | |
185 | * @pevent: a handle to the tep_handle | |
186 | * @_page_size: size of a memory page, in bytes | |
187 | * | |
188 | * This sets the size of a memory page on the current machine | |
189 | */ | |
190 | void tep_set_page_size(struct tep_handle *pevent, int _page_size) | |
191 | { | |
192 | if(pevent) | |
193 | pevent->page_size = _page_size; | |
194 | } | |
195 | ||
196 | /** | |
197 | * tep_is_file_bigendian - get if the file is in big endian order | |
198 | * @pevent: a handle to the tep_handle | |
199 | * | |
200 | * This returns if the file is in big endian order | |
201 | * If @pevent is NULL, 0 is returned. | |
202 | */ | |
203 | int tep_is_file_bigendian(struct tep_handle *pevent) | |
204 | { | |
205 | if(pevent) | |
206 | return pevent->file_bigendian; | |
207 | return 0; | |
208 | } | |
209 | ||
210 | /** | |
211 | * tep_set_file_bigendian - set if the file is in big endian order | |
212 | * @pevent: a handle to the tep_handle | |
213 | * @endian: non zero, if the file is in big endian order | |
214 | * | |
215 | * This sets if the file is in big endian order | |
216 | */ | |
217 | void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian) | |
218 | { | |
219 | if(pevent) | |
220 | pevent->file_bigendian = endian; | |
221 | } | |
222 | ||
223 | /** | |
224 | * tep_is_host_bigendian - get if the order of the current host is big endian | |
225 | * @pevent: a handle to the tep_handle | |
226 | * | |
227 | * This gets if the order of the current host is big endian | |
228 | * If @pevent is NULL, 0 is returned. | |
229 | */ | |
230 | int tep_is_host_bigendian(struct tep_handle *pevent) | |
231 | { | |
232 | if(pevent) | |
233 | return pevent->host_bigendian; | |
234 | return 0; | |
235 | } | |
236 | ||
237 | /** | |
238 | * tep_set_host_bigendian - set the order of the local host | |
239 | * @pevent: a handle to the tep_handle | |
240 | * @endian: non zero, if the local host has big endian order | |
241 | * | |
242 | * This sets the order of the local host | |
243 | */ | |
244 | void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian) | |
245 | { | |
246 | if(pevent) | |
247 | pevent->host_bigendian = endian; | |
248 | } | |
249 | ||
250 | /** | |
251 | * tep_is_latency_format - get if the latency output format is configured | |
252 | * @pevent: a handle to the tep_handle | |
253 | * | |
254 | * This gets if the latency output format is configured | |
255 | * If @pevent is NULL, 0 is returned. | |
256 | */ | |
257 | int tep_is_latency_format(struct tep_handle *pevent) | |
258 | { | |
259 | if(pevent) | |
260 | return pevent->latency_format; | |
261 | return 0; | |
262 | } | |
263 | ||
264 | /** | |
265 | * tep_set_latency_format - set the latency output format | |
266 | * @pevent: a handle to the tep_handle | |
267 | * @lat: non zero for latency output format | |
268 | * | |
269 | * This sets the latency output format | |
270 | */ | |
271 | void tep_set_latency_format(struct tep_handle *pevent, int lat) | |
272 | { | |
273 | if(pevent) | |
274 | pevent->latency_format = lat; | |
275 | } |