1 /* 2 * Copyright © 2020 Google, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 */ 23 24 #ifndef __NEEDS_TRACE_PRIV 25 # error "Do not use this header!" 26 #endif 27 28 #ifndef _U_TRACE_PRIV_H 29 #define _U_TRACE_PRIV_H 30 31 #include <stdio.h> 32 33 #include "u_trace.h" 34 35 /* 36 * Internal interface used by generated tracepoints 37 */ 38 39 /** 40 * Tracepoint descriptor. 41 */ 42 struct u_tracepoint { 43 unsigned payload_sz; 44 const char *name; 45 void (*print)(FILE *out, const void *payload); 46 #ifdef HAVE_PERFETTO 47 /** 48 * Callback to emit a perfetto event, such as render-stage trace 49 */ 50 void (*perfetto)(void *pctx, uint64_t ts_ns, const void *flush_data, const void *payload); 51 #endif 52 }; 53 54 /** 55 * Append a tracepoint, returning pointer that can be filled with trace 56 * payload. 57 */ 58 void * u_trace_append(struct u_trace *ut, void *cs, const struct u_tracepoint *tp); 59 60 #endif /* _U_TRACE_PRIV_H */ 61