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/*
* Copyright (c) 2008 Cisco, Inc. All rights reserved.
* Copyright (c) 2009 Sandia National Laboratories. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_BTL_OPENIB_FD_H_
#define OMPI_BTL_OPENIB_FD_H_
#include "ompi_config.h"
BEGIN_C_DECLS
/**
* Typedef for fd callback function
*/
typedef void *(ompi_btl_openib_fd_event_callback_fn_t)(int fd, int flags,
void *context);
/**
* Typedef for generic callback function
*/
typedef void *(ompi_btl_openib_fd_main_callback_fn_t)(void *context);
/**
* Initialize fd monitoring.
* Called by the main thread.
*/
int ompi_btl_openib_fd_init(void);
/**
* Start monitoring an fd.
* Called by main or service thread; callback will be in service thread.
*/
int ompi_btl_openib_fd_monitor(int fd, int flags,
ompi_btl_openib_fd_event_callback_fn_t *callback,
void *context);
/**
* Stop monitoring an fd.
* Called by main or service thread; callback will be in service thread.
*/
int ompi_btl_openib_fd_unmonitor(int fd,
ompi_btl_openib_fd_event_callback_fn_t *callback,
void *context);
/**
* Run a function in the service thread.
* Called by the main thread.
*/
int ompi_btl_openib_fd_run_in_service(ompi_btl_openib_fd_main_callback_fn_t callback,
void *context);
/**
* Run a function in the main thread.
* Called by the service thread.
*/
int ompi_btl_openib_fd_run_in_main(ompi_btl_openib_fd_main_callback_fn_t callback,
void *context);
/**
* Drain all pending messages from the main thread's pipe.
* Likely only useful during finalize, when the event library
* won't fire callbacks.
*/
int ompi_btl_openib_fd_main_thread_drain(void);
/**
* Finalize fd monitoring.
* Called by the main thread.
*/
int ompi_btl_openib_fd_finalize(void);
END_C_DECLS
#endif
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