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/*
* Copyright © 2020 Google, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __NEEDS_TRACE_PRIV
#error "Do not use this header!"
#endif
#ifndef _U_TRACE_PRIV_H
#define _U_TRACE_PRIV_H
#include "u_trace.h"
#include <stdio.h>
/*
* Internal interface used by generated tracepoints
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* Tracepoint descriptor.
*/
struct u_tracepoint {
unsigned payload_sz;
const char *name;
bool end_of_pipe;
void (*print)(FILE *out, const void *payload);
void (*print_json)(FILE *out, const void *payload);
#ifdef HAVE_PERFETTO
/**
* Callback to emit a perfetto event, such as render-stage trace
*/
void (*perfetto)(void *pctx,
uint64_t ts_ns,
const void *flush_data,
const void *payload);
#endif
};
/**
* Append a tracepoint followed by some amount of memory specified by
* variable_sz, returning pointer that can be filled with trace payload.
*/
void *u_trace_appendv(struct u_trace *ut,
void *cs,
const struct u_tracepoint *tp,
unsigned variable_sz);
/**
* Append a trace event, returning pointer to buffer of tp->payload_sz
* to be filled in with trace payload. Called by generated tracepoint
* functions.
*/
static inline void *
u_trace_append(struct u_trace *ut, void *cs, const struct u_tracepoint *tp)
{
return u_trace_appendv(ut, cs, tp, 0);
}
#ifdef __cplusplus
}
#endif
#endif /* _U_TRACE_PRIV_H */
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