ipcsocket.h

/*
 * Copyright (c) 2016-2023, NVIDIA CORPORATION. All rights reserved.
 *
 * See COPYRIGHT for license information
 */

#ifndef NCCL_IPCSOCKET_H
#define NCCL_IPCSOCKET_H

#include "nccl.h"
#include <stdio.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <memory.h>
#include <sys/un.h>
#include <inttypes.h>

#define NCCL_IPC_SOCKNAME_LEN 64

struct ncclIpcSocket {
  int fd;
  char socketName[NCCL_IPC_SOCKNAME_LEN];
  volatile uint32_t* abortFlag;
};

ncclResult_t ncclIpcSocketInit(struct ncclIpcSocket *handle, int rank, uint64_t hash, volatile uint32_t* abortFlag);
ncclResult_t ncclIpcSocketClose(struct ncclIpcSocket *handle);

ncclResult_t ncclIpcSocketRecvFd(struct ncclIpcSocket *handle, int *fd);
ncclResult_t ncclIpcSocketSendFd(struct ncclIpcSocket *handle, const int fd, int rank, uint64_t hash);

#endif /* NCCL_IPCSOCKET_H */