| 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_ |