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cl_atomic.h
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cl_atomic_osd.h
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cl_debug_osd.h
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cl_dispatcher.h
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cl_event.h
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cl_event_osd.h
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cl_event_wheel.h
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cl_vector.h
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Editing: cl_event.h
/* * Copyright (c) 2004, 2005 Voltaire, Inc. All rights reserved. * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved. * Copyright (c) 1996-2003 Intel Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * 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. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ /* * Abstract: * Declaration of event abstraction. */ #ifndef _CL_EVENT_H_ #define _CL_EVENT_H_ /* Indicates that waiting on an event should never timeout */ #define EVENT_NO_TIMEOUT 0xFFFFFFFF #include <complib/cl_event_osd.h> #ifdef __cplusplus # define BEGIN_C_DECLS extern "C" { # define END_C_DECLS } #else /* !__cplusplus */ # define BEGIN_C_DECLS # define END_C_DECLS #endif /* __cplusplus */ BEGIN_C_DECLS /****h* Component Library/Event * NAME * Event * * DESCRIPTION * The Event provides the ability to suspend and wakeup a thread. * * The event functions operates on a cl_event_t structure which should be * treated as opaque and should be manipulated only through the provided * functions. * * SEE ALSO * Structures: * cl_event_t * * Initialization/Destruction: * cl_event_construct, cl_event_init, cl_event_destroy * * Manipulation: * cl_event_signal, cl_event_reset, cl_event_wait_on *********/ /****f* Component Library: Event/cl_event_construct * NAME * cl_event_construct * * DESCRIPTION * The cl_event_construct function constructs an event. * * SYNOPSIS */ void cl_event_construct(IN cl_event_t * const p_event); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure to construct. * * RETURN VALUE * This function does not return a value. * * NOTES * Allows calling cl_event_destroy without first calling cl_event_init. * * Calling cl_event_construct is a prerequisite to calling any other event * function except cl_event_init. * * SEE ALSO * Event, cl_event_init, cl_event_destroy *********/ /****f* Component Library: Event/cl_event_init * NAME * cl_event_init * * DESCRIPTION * The cl_event_init function initializes an event for use. * * SYNOPSIS */ cl_status_t cl_event_init(IN cl_event_t * const p_event, IN const boolean_t manual_reset); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure to initialize. * * manual_reset * [in] If FALSE, indicates that the event resets itself after releasing * a single waiter. If TRUE, the event remains in the signalled state * until explicitly reset by a call to cl_event_reset. * * RETURN VALUES * CL_SUCCESS if event initialization succeeded. * * CL_ERROR otherwise. * * NOTES * Allows calling event manipulation functions, such as cl_event_signal, * cl_event_reset, and cl_event_wait_on. * * The event is initially in a reset state. * * SEE ALSO * Event, cl_event_construct, cl_event_destroy, cl_event_signal, * cl_event_reset, cl_event_wait_on *********/ /****f* Component Library: Event/cl_event_destroy * NAME * cl_event_destroy * * DESCRIPTION * The cl_event_destroy function performs any necessary cleanup of an event. * * SYNOPSIS */ void cl_event_destroy(IN cl_event_t * const p_event); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure to destroy. * * RETURN VALUE * This function does not return a value. * * NOTES * This function should only be called after a call to cl_event_construct * or cl_event_init. * * SEE ALSO * Event, cl_event_construct, cl_event_init *********/ /****f* Component Library: Event/cl_event_signal * NAME * cl_event_signal * * DESCRIPTION * The cl_event_signal function sets an event to the signalled state and * releases at most one waiting thread. * * SYNOPSIS */ cl_status_t cl_event_signal(IN cl_event_t * const p_event); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure to set. * * RETURN VALUES * CL_SUCCESS if the event was successfully signalled. * * CL_ERROR otherwise. * * NOTES * For auto-reset events, the event is reset automatically once a wait * operation is satisfied. * * Triggering the event multiple times does not guarantee that the same * number of wait operations are satisfied. This is because events are * either in a signalled on non-signalled state, and triggering an event * that is already in the signalled state has no effect. * * SEE ALSO * Event, cl_event_reset, cl_event_wait_on *********/ /****f* Component Library: Event/cl_event_reset * NAME * cl_event_reset * * DESCRIPTION * The cl_event_reset function sets an event to the non-signalled state. * * SYNOPSIS */ cl_status_t cl_event_reset(IN cl_event_t * const p_event); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure to reset. * * RETURN VALUES * CL_SUCCESS if the event was successfully reset. * * CL_ERROR otherwise. * * SEE ALSO * Event, cl_event_signal, cl_event_wait_on *********/ /****f* Component Library: Event/cl_event_wait_on * NAME * cl_event_wait_on * * DESCRIPTION * The cl_event_wait_on function waits for the specified event to be * triggered for a minimum amount of time. * * SYNOPSIS */ cl_status_t cl_event_wait_on(IN cl_event_t * const p_event, IN const uint32_t wait_us, IN const boolean_t interruptible); /* * PARAMETERS * p_event * [in] Pointer to an cl_event_t structure on which to wait. * * wait_us * [in] Number of microseconds to wait. * * interruptible * [in] Indicates whether the wait operation can be interrupted * by external signals. * * RETURN VALUES * CL_SUCCESS if the wait operation succeeded in response to the event * being set. * * CL_TIMEOUT if the specified time period elapses. * * CL_NOT_DONE if the wait was interrupted by an external signal. * * CL_ERROR if the wait operation failed. * * NOTES * If wait_us is set to EVENT_NO_TIMEOUT, the function will wait until the * event is triggered and never timeout. * * If the timeout value is zero, this function simply tests the state of * the event. * * If the event is already on the signalled state at the time of the call * to cl_event_wait_on, the call completes immediately with CL_SUCCESS. * * SEE ALSO * Event, cl_event_signal, cl_event_reset *********/ END_C_DECLS #endif /* _CL_EVENT_H_ */
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