23b0a32aec
This allows to reuse same step functions giving them different parameters on each step. Additionally move pipeline to utils, to make it accessible to other subsystems of OCF (e.g. metadata). Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
135 lines
2.8 KiB
C
135 lines
2.8 KiB
C
/*
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* Copyright(c) 2019 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#ifndef __UTILS_PIPELINE_H__
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#define __UTILS_PIPELINE_H__
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#include "../ocf_cache_priv.h"
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enum ocf_pipeline_step_type {
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ocf_pipeline_step_single,
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ocf_pipeline_step_foreach,
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ocf_pipeline_step_terminator,
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};
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enum ocf_pipeline_arg_type {
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ocf_pipeline_arg_none,
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ocf_pipeline_arg_int,
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ocf_pipeline_arg_ptr,
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ocf_pipeline_arg_terminator,
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};
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struct ocf_pipeline_arg {
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enum ocf_pipeline_arg_type type;
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union {
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int i;
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void *p;
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} val;
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};
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typedef struct ocf_pipeline_arg *ocf_pipeline_arg_t;
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#define OCF_PL_ARG_NONE() \
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{ .type = ocf_pipeline_arg_none, }
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#define OCF_PL_ARG_INT(_int) \
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{ .type = ocf_pipeline_arg_int, .val.i = _int }
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#define OCF_PL_ARG_PTR(_ptr) \
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{ .type = ocf_pipeline_arg_ptr, .val.p = _ptr }
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#define OCF_PL_ARG_TERMINATOR() \
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{ .type = ocf_pipeline_arg_terminator, }
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static inline int ocf_pipeline_arg_get_int(ocf_pipeline_arg_t arg)
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{
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ENV_BUG_ON(arg->type != ocf_pipeline_arg_int);
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return arg->val.i;
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}
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static inline void *ocf_pipeline_arg_get_ptr(ocf_pipeline_arg_t arg)
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{
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ENV_BUG_ON(arg->type != ocf_pipeline_arg_ptr);
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return arg->val.p;
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}
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typedef struct ocf_pipeline *ocf_pipeline_t;
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typedef void (*ocf_pipeline_step_hndl_t)(ocf_pipeline_t pipeline,
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void *priv, ocf_pipeline_arg_t arg);
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typedef void (*ocf_pipeline_finish_t)(ocf_pipeline_t pipeline,
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void *priv, int error);
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struct ocf_pipeline_step {
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enum ocf_pipeline_step_type type;
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ocf_pipeline_step_hndl_t hndl;
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union {
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struct ocf_pipeline_arg arg;
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struct ocf_pipeline_arg *args;
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};
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};
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#define OCF_PL_STEP(_hndl) \
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{ \
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.type = ocf_pipeline_step_single, \
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.hndl = _hndl, \
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}
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#define OCF_PL_STEP_ARG_INT(_hndl, _int) \
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{ \
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.type = ocf_pipeline_step_single, \
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.hndl = _hndl, \
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.arg = { \
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.type = ocf_pipeline_arg_int, \
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.val.i = _int, \
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} \
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}
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#define OCF_PL_STEP_ARG_PTR(_hndl, _ptr) \
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{ \
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.type = ocf_pipeline_step_single, \
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.hndl = _hndl, \
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.arg = { \
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.type = ocf_pipeline_arg_ptr, \
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.val.p = _ptr, \
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} \
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}
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#define OCF_PL_STEP_FOREACH(_hndl, _args) \
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{ \
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.type = ocf_pipeline_step_foreach, \
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.hndl = _hndl, \
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.args = _args, \
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}
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#define OCF_PL_STEP_TERMINATOR() \
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{ \
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.type = ocf_pipeline_step_terminator, \
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}
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struct ocf_pipeline_properties {
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uint32_t priv_size;
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ocf_pipeline_finish_t finish;
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struct ocf_pipeline_step steps[];
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};
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int ocf_pipeline_create(ocf_pipeline_t *pipeline, ocf_cache_t cache,
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struct ocf_pipeline_properties *properties);
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void ocf_pipeline_set_priv(ocf_pipeline_t pipeline, void *priv);
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void *ocf_pipeline_get_priv(ocf_pipeline_t pipeline);
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void ocf_pipeline_destroy(ocf_pipeline_t pipeline);
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void ocf_pipeline_next(ocf_pipeline_t pipeline);
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void ocf_pipeline_finish(ocf_pipeline_t pipeline, int error);
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#endif /* __UTILS_PIPELINE_H__ */
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