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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_SURFACE_API_TRACE_H
#define GRPC_CORE_LIB_SURFACE_API_TRACE_H
#include <grpc/support/log.h>
#include "src/core/lib/debug/trace.h"
#ifdef __cplusplus
extern "C" {
#endif
extern grpc_tracer_flag grpc_api_trace;
/* Provide unwrapping macros because we're in C89 and variadic macros weren't
introduced until C99... */
#define GRPC_API_TRACE_UNWRAP0()
#define GRPC_API_TRACE_UNWRAP1(a) , a
#define GRPC_API_TRACE_UNWRAP2(a, b) , a, b
#define GRPC_API_TRACE_UNWRAP3(a, b, c) , a, b, c
#define GRPC_API_TRACE_UNWRAP4(a, b, c, d) , a, b, c, d
#define GRPC_API_TRACE_UNWRAP5(a, b, c, d, e) , a, b, c, d, e
#define GRPC_API_TRACE_UNWRAP6(a, b, c, d, e, f) , a, b, c, d, e, f
#define GRPC_API_TRACE_UNWRAP7(a, b, c, d, e, f, g) , a, b, c, d, e, f, g
#define GRPC_API_TRACE_UNWRAP8(a, b, c, d, e, f, g, h) , a, b, c, d, e, f, g, h
#define GRPC_API_TRACE_UNWRAP9(a, b, c, d, e, f, g, h, i) \
, a, b, c, d, e, f, g, h, i
#define GRPC_API_TRACE_UNWRAP10(a, b, c, d, e, f, g, h, i, j) \
, a, b, c, d, e, f, g, h, i, j
/* Due to the limitations of C89's preprocessor, the arity of the var-arg list
'nargs' must be specified. */
#define GRPC_API_TRACE(fmt, nargs, args) \
if (GRPC_TRACER_ON(grpc_api_trace)) { \
gpr_log(GPR_INFO, fmt GRPC_API_TRACE_UNWRAP##nargs args); \
}
#ifdef __cplusplus
}
#endif
#endif /* GRPC_CORE_LIB_SURFACE_API_TRACE_H */
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