You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
385 lines
12 KiB
C
385 lines
12 KiB
C
3 weeks ago
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
||
|
|
* Copyright by The HDF Group. *
|
||
|
|
* All rights reserved. *
|
||
|
|
* *
|
||
|
|
* This file is part of HDF5. The full HDF5 copyright notice, including *
|
||
|
|
* terms governing use, modification, and redistribution, is contained in *
|
||
|
|
* the COPYING file, which can be found at the root of the source code *
|
||
|
|
* distribution tree, or in https://www.hdfgroup.org/licenses. *
|
||
|
|
* If you do not have access to either file, you may request a copy from *
|
||
|
|
* help@hdfgroup.org. *
|
||
|
|
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file contains public declarations for the H5ES (event set) module.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef H5ESpublic_H
|
||
|
|
#define H5ESpublic_H
|
||
|
|
|
||
|
|
/* Public headers needed by this file */
|
||
|
|
#include "H5public.h" /* Generic Functions */
|
||
|
|
|
||
|
|
/*****************/
|
||
|
|
/* Public Macros */
|
||
|
|
/*****************/
|
||
|
|
|
||
|
|
/* Default value for "no event set" / synchronous execution */
|
||
|
|
#define H5ES_NONE 0 /* (hid_t) */
|
||
|
|
|
||
|
|
/* Special "wait" timeout values */
|
||
|
|
#define H5ES_WAIT_FOREVER (UINT64_MAX) /* Wait until all operations complete */
|
||
|
|
#define H5ES_WAIT_NONE \
|
||
|
|
(0) /* Don't wait for operations to complete, \
|
||
|
|
* just check their status. \
|
||
|
|
* (this allows H5ESwait to behave \
|
||
|
|
* like a 'test' operation) \
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*******************/
|
||
|
|
/* Public Typedefs */
|
||
|
|
/*******************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Asynchronous operation status
|
||
|
|
*/
|
||
|
|
typedef enum H5ES_status_t {
|
||
|
|
H5ES_STATUS_IN_PROGRESS, /**< Operation(s) have not yet completed */
|
||
|
|
H5ES_STATUS_SUCCEED, /**< Operation(s) have completed, successfully */
|
||
|
|
H5ES_STATUS_CANCELED, /**< Operation(s) has been canceled */
|
||
|
|
H5ES_STATUS_FAIL /**< An operation has completed, but failed */
|
||
|
|
} H5ES_status_t;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Information about operations in an event set
|
||
|
|
*/
|
||
|
|
typedef struct H5ES_op_info_t {
|
||
|
|
/* API call info */
|
||
|
|
const char *api_name; /**< Name of HDF5 API routine called */
|
||
|
|
char *api_args; /**< "Argument string" for arguments to HDF5 API routine called */
|
||
|
|
|
||
|
|
/* Application info */
|
||
|
|
const char *app_file_name; /**< Name of source file where the HDF5 API routine was called */
|
||
|
|
const char *app_func_name; /**< Name of function where the HDF5 API routine was called */
|
||
|
|
unsigned app_line_num; /**< Line # of source file where the HDF5 API routine was called */
|
||
|
|
|
||
|
|
/* Operation info */
|
||
|
|
uint64_t op_ins_count; /**< Counter of operation's insertion into event set */
|
||
|
|
uint64_t op_ins_ts; /**< Timestamp for when the operation was inserted into the event set */
|
||
|
|
uint64_t op_exec_ts; /**< Timestamp for when the operation began execution */
|
||
|
|
uint64_t op_exec_time; /**< Execution time for operation (in ns) */
|
||
|
|
} H5ES_op_info_t;
|
||
|
|
|
||
|
|
//! <!-- [H5ES_err_info_t_snip] -->
|
||
|
|
/**
|
||
|
|
* Information about failed operations in event set
|
||
|
|
*/
|
||
|
|
typedef struct H5ES_err_info_t {
|
||
|
|
/* API call info */
|
||
|
|
char *api_name; /**< Name of HDF5 API routine called */
|
||
|
|
char *api_args; /**< "Argument string" for arguments to HDF5 API routine called */
|
||
|
|
|
||
|
|
/* Application info */
|
||
|
|
char *app_file_name; /**< Name of source file where the HDF5 API routine was called */
|
||
|
|
char *app_func_name; /**< Name of function where the HDF5 API routine was called */
|
||
|
|
unsigned app_line_num; /**< Line # of source file where the HDF5 API routine was called */
|
||
|
|
|
||
|
|
/* Operation info */
|
||
|
|
uint64_t op_ins_count; /**< Counter of operation's insertion into event set */
|
||
|
|
uint64_t op_ins_ts; /**< Timestamp for when the operation was inserted into the event set */
|
||
|
|
uint64_t op_exec_ts; /**< Timestamp for when the operation began execution */
|
||
|
|
uint64_t op_exec_time; /**< Execution time for operation (in ns) */
|
||
|
|
|
||
|
|
/* Error info */
|
||
|
|
hid_t err_stack_id; /**< ID for error stack from failed operation */
|
||
|
|
} H5ES_err_info_t;
|
||
|
|
//! <!-- [H5ES_err_info_t_snip] -->
|
||
|
|
|
||
|
|
/*
|
||
|
|
More Possible Info for H5ES_op_info_t:
|
||
|
|
Parent Operation's request token (*) -> "parent event count"? -- Could be
|
||
|
|
used to "prune" child operations from reported errors, with flag
|
||
|
|
to H5ESget_err_info?
|
||
|
|
|
||
|
|
Possible debugging routines: (Should also be configured from Env Var)
|
||
|
|
H5ESdebug_signal(hid_t es_id, signal_t sig, uint64_t <event count>);
|
||
|
|
H5ESdebug_err_trace_log(hid_t es_id, const char *filename);
|
||
|
|
H5ESdebug_err_trace_fh(hid_t es_id, FILE *fh);
|
||
|
|
H5ESdebug_err_signal(hid_t es_id, signal_t sig);
|
||
|
|
[Possibly option to allow operations to be inserted into event set with error?]
|
||
|
|
|
||
|
|
Example usage:
|
||
|
|
es_id = H5EScreate();
|
||
|
|
H5ESdebug...(es_id, ...);
|
||
|
|
...
|
||
|
|
H5Dwrite_async(..., es_id);
|
||
|
|
|
||
|
|
How to Trace Async Operations?
|
||
|
|
<Example of stacking Logging VOL Connector w/Async VOL Connector>
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Callback for H5ESregister_insert_func()
|
||
|
|
*/
|
||
|
|
typedef int (*H5ES_event_insert_func_t)(const H5ES_op_info_t *op_info, void *ctx);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Callback for H5ESregister_complete_func()
|
||
|
|
*/
|
||
|
|
typedef int (*H5ES_event_complete_func_t)(const H5ES_op_info_t *op_info, H5ES_status_t status,
|
||
|
|
hid_t err_stack, void *ctx);
|
||
|
|
|
||
|
|
/********************/
|
||
|
|
/* Public Variables */
|
||
|
|
/********************/
|
||
|
|
|
||
|
|
/*********************/
|
||
|
|
/* Public Prototypes */
|
||
|
|
/*********************/
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Creates an event set
|
||
|
|
*
|
||
|
|
* \returns \hid_t{event set}
|
||
|
|
*
|
||
|
|
* \details H5EScreate() creates a new event set and returns a corresponding
|
||
|
|
* event set identifier.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL hid_t H5EScreate(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Waits for operations in event set to complete
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[in] timeout Total time in nanoseconds to wait for all operations in
|
||
|
|
* the event set to complete
|
||
|
|
* \param[out] num_in_progress The number of operations still in progress
|
||
|
|
* \param[out] err_occurred Flag if an operation in the event set failed
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESwait() waits for operations in an event set \p es_id to wait
|
||
|
|
* with \p timeout.
|
||
|
|
*
|
||
|
|
* Timeout value is in nanoseconds, and is for the H5ESwait() call and
|
||
|
|
* not for each individual operation in the event set. For example, if
|
||
|
|
* "10" is passed as a timeout value and the event set waited 4
|
||
|
|
* nanoseconds for the first operation to complete, the remaining
|
||
|
|
* operations would be allowed to wait for at most 6 nanoseconds more,
|
||
|
|
* i.e., the timeout value used across all operations in the event set
|
||
|
|
* until it reaches 0, then any remaining operations are only checked
|
||
|
|
* for completion, not waited on.
|
||
|
|
*
|
||
|
|
* This call will stop waiting on operations and will return
|
||
|
|
* immediately if an operation fails. If a failure occurs, the value
|
||
|
|
* returned for the number of operations in progress may be inaccurate.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESwait(hid_t es_id, uint64_t timeout, size_t *num_in_progress, hbool_t *err_occurred);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Attempt to cancel operations in an event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[out] num_not_canceled The number of events not canceled
|
||
|
|
* \param[out] err_occurred Status indicating if error is present in the event set
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5EScancel() attempts to cancel operations in an event set specified
|
||
|
|
* by \p es_id. H5ES_NONE is a valid value for \p es_id, but functions as a no-op.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5EScancel(hid_t es_id, size_t *num_not_canceled, hbool_t *err_occurred);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Retrieves number of events in an event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[out] count The number of events in the event set
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESget_count() retrieves number of events in an event set specified
|
||
|
|
* by \p es_id.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESget_count(hid_t es_id, size_t *count);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Retrieves the accumulative operation counter for an event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[out] counter The accumulative counter value for an event set
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESget_op_counter() retrieves the current accumulative count of
|
||
|
|
* event set operations since the event set creation of \p es_id.
|
||
|
|
*
|
||
|
|
* \note This is designed for wrapper libraries mainly, to use as a mechanism
|
||
|
|
* for matching operations inserted into the event set with possible
|
||
|
|
* errors that occur.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESget_op_counter(hid_t es_id, uint64_t *counter);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Checks for failed operations
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[out] err_occurred Status indicating if error is present in the event
|
||
|
|
* set
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESget_err_status() checks if event set specified by es_id has
|
||
|
|
* failed operations.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESget_err_status(hid_t es_id, hbool_t *err_occurred);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Retrieves the number of failed operations
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[out] num_errs Number of errors
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESget_err_count() retrieves the number of failed operations in an
|
||
|
|
* event set specified by \p es_id.
|
||
|
|
*
|
||
|
|
* The function does not wait for active operations to complete, so
|
||
|
|
* count may not include all failures.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESget_err_count(hid_t es_id, size_t *num_errs);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Retrieves information about failed operations
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[in] num_err_info The number of elements in \p err_info array
|
||
|
|
* \param[out] err_info Array of structures
|
||
|
|
* \param[out] err_cleared Number of cleared errors
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESget_err_info() retrieves information about failed operations in
|
||
|
|
* an event set specified by \p es_id. The strings retrieved for each
|
||
|
|
* error info must be released by calling H5free_memory().
|
||
|
|
*
|
||
|
|
* Below is the description of the \ref H5ES_err_info_t structure:
|
||
|
|
* \snippet this H5ES_err_info_t_snip
|
||
|
|
* \click4more
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESget_err_info(hid_t es_id, size_t num_err_info, H5ES_err_info_t err_info[],
|
||
|
|
size_t *err_cleared);
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Convenience routine to free an array of H5ES_err_info_t structs
|
||
|
|
*
|
||
|
|
* \param[in] num_err_info The number of elements in \p err_info array
|
||
|
|
* \param[in] err_info Array of structures
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESfree_err_info(size_t num_err_info, H5ES_err_info_t err_info[]);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Registers a callback to invoke when a new operation is inserted into
|
||
|
|
* an event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[in] func The insert function to register
|
||
|
|
* \param[in] ctx User-specified information (context) to pass to \p func
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details Only one insert callback can be registered for each event set.
|
||
|
|
* Registering a new callback will replace the existing one.
|
||
|
|
* H5ES_NONE is a valid value for 'es_id', but functions as a no-op
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESregister_insert_func(hid_t es_id, H5ES_event_insert_func_t func, void *ctx);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Registers a callback to invoke when an operation completes within an
|
||
|
|
* event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \param[in] func The completion function to register
|
||
|
|
* \param[in] ctx User-specified information (context) to pass to \p func
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details Only one complete callback can be registered for each event set.
|
||
|
|
* Registering a new callback will replace the existing one.
|
||
|
|
* H5ES_NONE is a valid value for 'es_id', but functions as a no-op
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESregister_complete_func(hid_t es_id, H5ES_event_complete_func_t func, void *ctx);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \ingroup H5ES
|
||
|
|
*
|
||
|
|
* \brief Terminates access to an event set
|
||
|
|
*
|
||
|
|
* \es_id
|
||
|
|
* \returns \herr_t
|
||
|
|
*
|
||
|
|
* \details H5ESclose() terminates access to an event set specified by \p es_id.
|
||
|
|
*
|
||
|
|
* \since 1.14.0
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
H5_DLL herr_t H5ESclose(hid_t es_id);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* H5ESpublic_H */
|