ff2341d9 |
1 | #ifndef _LTT_FACILITY_USER_TESTS_H_ |
2 | #define _LTT_FACILITY_USER_TESTS_H_ |
3 | |
4 | #include <sys/types.h> |
5 | #include <ltt/ltt-facility-id-user_tests.h> |
6 | #include <ltt/ltt-usertrace.h> |
7 | |
8 | /* Named types */ |
9 | |
10 | /* Event write_4bytes structures */ |
11 | |
12 | /* Event write_4bytes logging function */ |
13 | #ifndef LTT_TRACE_FAST |
14 | static inline int trace_user_tests_write_4bytes( |
15 | int lttng_param_data) |
16 | #ifndef LTT_TRACE |
17 | { |
18 | } |
19 | #else |
20 | { |
21 | int ret = 0; |
22 | void *buffer = NULL; |
23 | size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */ |
24 | size_t *to_base = &real_to_base; |
25 | size_t real_to = 0; |
26 | size_t *to = &real_to; |
27 | size_t real_len = 0; |
28 | size_t *len = &real_len; |
29 | size_t reserve_size; |
30 | size_t slot_size; |
31 | size_t align; |
32 | const void *real_from; |
33 | const void **from = &real_from; |
34 | /* For each field, calculate the field size. */ |
35 | /* size = *to_base + *to + *len */ |
36 | /* Assume that the padding for alignment starts at a |
37 | * sizeof(void *) address. */ |
38 | |
39 | *from = <tng_param_data; |
40 | align = sizeof(int); |
41 | |
42 | if(*len == 0) { |
43 | *to += ltt_align(*to, align); /* align output */ |
44 | } else { |
45 | *len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */ |
46 | } |
47 | |
48 | *len += sizeof(int); |
49 | |
50 | reserve_size = *to_base + *to + *len; |
51 | { |
52 | char stack_buffer[reserve_size]; |
53 | buffer = stack_buffer; |
54 | |
55 | *to_base = *to = *len = 0; |
56 | |
57 | *from = <tng_param_data; |
58 | align = sizeof(int); |
59 | |
60 | if(*len == 0) { |
61 | *to += ltt_align(*to, align); /* align output */ |
62 | } else { |
63 | *len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */ |
64 | } |
65 | |
66 | *len += sizeof(int); |
67 | |
68 | /* Flush pending memcpy */ |
69 | if(*len != 0) { |
70 | memcpy(buffer+*to_base+*to, *from, *len); |
71 | *to += *len; |
72 | *len = 0; |
73 | } |
74 | |
75 | ret = ltt_trace_generic(ltt_facility_user_tests_CDD24456, event_user_tests_write_4bytes, buffer, reserve_size, LTT_BLOCKING); |
76 | } |
77 | |
78 | return ret; |
79 | |
80 | } |
81 | #endif //LTT_TRACE |
82 | #endif //!LTT_TRACE_FAST |
83 | |
84 | #ifdef LTT_TRACE_FAST |
85 | static inline int trace_user_tests_write_4bytes( |
86 | int lttng_param_data) |
87 | #ifndef LTT_TRACE |
88 | { |
89 | } |
90 | #else |
91 | { |
92 | unsigned int index; |
93 | struct ltt_trace_info *trace = thread_trace_info; |
94 | struct ltt_buf *ltt_buf; |
95 | void *buffer = NULL; |
96 | size_t real_to_base = 0; /* The buffer is allocated on arch_size alignment */ |
97 | size_t *to_base = &real_to_base; |
98 | size_t real_to = 0; |
99 | size_t *to = &real_to; |
100 | size_t real_len = 0; |
101 | size_t *len = &real_len; |
102 | size_t reserve_size; |
103 | size_t slot_size; |
104 | size_t align; |
105 | const void *real_from; |
106 | const void **from = &real_from; |
107 | uint64_t tsc; |
108 | size_t before_hdr_pad, after_hdr_pad, header_size; |
109 | |
110 | if(!trace) { |
111 | ltt_thread_init(); |
112 | trace = thread_trace_info; |
113 | } |
114 | |
115 | |
116 | /* For each field, calculate the field size. */ |
117 | /* size = *to_base + *to + *len */ |
118 | /* Assume that the padding for alignment starts at a |
119 | * sizeof(void *) address. */ |
120 | |
121 | *from = <tng_param_data; |
122 | align = sizeof(int); |
123 | |
124 | if(*len == 0) { |
125 | *to += ltt_align(*to, align); /* align output */ |
126 | } else { |
127 | *len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */ |
128 | } |
129 | |
130 | *len += sizeof(int); |
131 | |
132 | reserve_size = *to_base + *to + *len; |
133 | trace->nesting++; |
134 | index = ltt_get_index_from_facility(ltt_facility_user_tests_CDD24456, |
135 | event_user_tests_write_4bytes); |
136 | |
137 | { |
138 | ltt_buf = ltt_get_channel_from_index(trace, index); |
139 | slot_size = 0; |
140 | buffer = ltt_reserve_slot(trace, ltt_buf, |
141 | reserve_size, &slot_size, &tsc, |
142 | &before_hdr_pad, &after_hdr_pad, &header_size); |
143 | if(!buffer) goto end; /* buffer full */ |
144 | |
145 | *to_base = *to = *len = 0; |
146 | |
147 | ltt_write_event_header(trace, ltt_buf, buffer, |
148 | ltt_facility_user_tests_CDD24456, event_user_tests_write_4bytes, |
149 | reserve_size, before_hdr_pad, tsc); |
150 | *to_base += before_hdr_pad + after_hdr_pad + header_size; |
151 | |
152 | *from = <tng_param_data; |
153 | align = sizeof(int); |
154 | |
155 | if(*len == 0) { |
156 | *to += ltt_align(*to, align); /* align output */ |
157 | } else { |
158 | *len += ltt_align(*to+*len, align); /* alignment, ok to do a memcpy of it */ |
159 | } |
160 | |
161 | *len += sizeof(int); |
162 | |
163 | /* Flush pending memcpy */ |
164 | if(*len != 0) { |
165 | memcpy(buffer+*to_base+*to, *from, *len); |
166 | *to += *len; |
167 | *len = 0; |
168 | } |
169 | |
170 | ltt_commit_slot(ltt_buf, buffer, slot_size); |
171 | |
172 | } |
173 | |
174 | end: |
175 | trace->nesting--; |
176 | } |
177 | #endif //LTT_TRACE |
178 | #endif //LTT_TRACE_FAST |
179 | |
180 | #endif //_LTT_FACILITY_USER_TESTS_H_ |