src/core/lib/iomgr/lockfree_event.h

/*
 *
 * Copyright 2017, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#ifndef GRPC_CORE_LIB_IOMGR_LOCKFREE_EVENT_H
#define GRPC_CORE_LIB_IOMGR_LOCKFREE_EVENT_H

/* Lock free event notification for file descriptors */

#include <grpc/support/atm.h>

#include "src/core/lib/iomgr/exec_ctx.h"

void grpc_lfev_init(gpr_atm *state);
void grpc_lfev_destroy(gpr_atm *state);
bool grpc_lfev_is_shutdown(gpr_atm *state);

void grpc_lfev_notify_on(grpc_exec_ctx *exec_ctx, gpr_atm *state,
                         grpc_closure *closure);
/* Returns true on first successful shutdown */
bool grpc_lfev_set_shutdown(grpc_exec_ctx *exec_ctx, gpr_atm *state,
                            grpc_error *shutdown_err);
void grpc_lfev_set_ready(grpc_exec_ctx *exec_ctx, gpr_atm *state);

#endif /* GRPC_CORE_LIB_IOMGR_LOCKFREE_EVENT_H */