/*************************************************************************
 * Copyright (c) 2015-2022, NVIDIA CORPORATION. All rights reserved.
 *
 * See LICENSE.txt for license information
 ************************************************************************/

#ifndef NCCL_INT_DEBUG_H_
#define NCCL_INT_DEBUG_H_

#include "nccl.h"
#include "nccl_common.h"
#include <stdio.h>

#include <pthread.h>

// Conform to pthread and NVTX standard
#define NCCL_THREAD_NAMELEN 16

extern int ncclDebugLevel;
extern uint64_t ncclDebugMask;
extern FILE *ncclDebugFile;

void ncclDebugLog(ncclDebugLogLevel level, unsigned long flags, const char *filefunc, int line, const char *fmt, ...) __attribute__ ((format (printf, 5, 6)));

// Let code temporarily downgrade WARN into INFO
extern thread_local int ncclDebugNoWarn;
extern char ncclLastError[];

#define ERROR(...) ncclDebugLog(NCCL_LOG_ERROR, NCCL_ALL, __FILE__, __LINE__, __VA_ARGS__)
#define VERSION(...) ncclDebugLog(NCCL_LOG_VERSION, NCCL_ALL, __FILE__, __LINE__, __VA_ARGS__)
#define WARN(...) ncclDebugLog(NCCL_LOG_WARN, NCCL_ALL, __FILE__, __LINE__, __VA_ARGS__)
#define INFO(FLAGS, ...) ncclDebugLog(NCCL_LOG_INFO, (FLAGS), __func__, __LINE__, __VA_ARGS__)
#define TRACE_CALL(...) ncclDebugLog(NCCL_LOG_TRACE, NCCL_CALL, __func__, __LINE__, __VA_ARGS__)

#ifdef ENABLE_TRACE
#define TRACE(FLAGS, ...) ncclDebugLog(NCCL_LOG_TRACE, (FLAGS), __func__, __LINE__, __VA_ARGS__)
#else
#define TRACE(...)
#endif

void ncclSetThreadName(pthread_t thread, const char *fmt, ...);

void ncclResetDebugInit();

// RCCL custom error message handling.
static inline ncclResult_t rcclCudaErrorHandler(cudaError_t err) {

    // Print the cuda error
    ERROR("HIP failure: '%s'", cudaGetErrorString(err));

    // Special error message here:
    switch (err) {
    case cudaErrorStreamCaptureInvalidated:
	    ERROR("Application is trying to use an invalidated stream to launch RCCL kernel. "
	          "This operation is invalid. RCCL is exiting.");
	    break;
    default:
	    break;
    }
    return ncclUnhandledCudaError;
}

#endif
