source: mainline/uspace/srv/bd/hr/fge.h

Last change on this file was 49da044, checked in by Miroslav Cimerman <mc@…>, 2 months ago

hr: fge: move types to fge.h

  • Property mode set to 100644
File size: 3.5 KB
Line 
1/*
2 * Copyright (c) 2025 Miroslav Cimerman
3 * Copyright (c) 2024 Vojtech Horky
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/** @addtogroup hr
31 * @{
32 */
33/**
34 * @file
35 */
36
37#ifndef _HR_FGE_H
38#define _HR_FGE_H
39
40#include <adt/bitmap.h>
41#include <adt/circ_buf.h>
42#include <errno.h>
43#include <stddef.h>
44
45/* forward declarations */
46typedef struct hr_fpool hr_fpool_t;
47typedef struct hr_fgroup hr_fgroup_t;
48typedef struct fge_fibril_data fge_fibril_data_t;
49typedef struct wu_queue wu_queue_t;
50
51typedef errno_t (*hr_wu_t)(void *);
52
53struct fge_fibril_data {
54 hr_wu_t wu; /* work unit function pointer */
55 void *arg; /* work unit function argument */
56 hr_fgroup_t *group; /* back-pointer to group */
57 ssize_t memslot; /* index to pool bitmap slot */
58};
59
60struct wu_queue {
61 fibril_mutex_t lock;
62 fibril_condvar_t not_empty;
63 fibril_condvar_t not_full;
64 fge_fibril_data_t *fexecs; /* circ-buf memory */
65 circ_buf_t cbuf;
66};
67
68struct hr_fpool {
69 fibril_mutex_t lock;
70 bitmap_t bitmap; /* memory slot bitmap */
71 wu_queue_t queue;
72 fid_t *fibrils;
73 uint8_t *wu_storage; /* pre-allocated pool storage */
74 size_t fibril_cnt;
75 size_t max_wus;
76 size_t active_groups;
77 bool stop;
78 size_t wu_size;
79 size_t wu_storage_free_count;
80 fibril_condvar_t all_wus_done;
81};
82
83struct hr_fgroup {
84 hr_fpool_t *pool;/* back-pointer to pool */
85 size_t wu_cnt;/* upper bound of work units */
86 size_t submitted; /* number of submitted jobs */
87 size_t reserved_cnt; /* no. of reserved wu storage slots */
88 size_t reserved_avail;
89 size_t *memslots; /* indices to pool bitmap */
90 void *own_mem; /* own allocated memory */
91 size_t own_used; /* own memory slots used counter */
92 errno_t final_errno; /* agreggated errno */
93 size_t finished_okay; /* no. of wus that ended with EOK */
94 size_t finished_fail; /* no. of wus that ended with != EOK */
95 fibril_mutex_t lock;
96 fibril_condvar_t all_done;
97};
98
99extern hr_fpool_t *hr_fpool_create(size_t, size_t, size_t);
100extern void hr_fpool_destroy(hr_fpool_t *);
101extern hr_fgroup_t *hr_fgroup_create(hr_fpool_t *, size_t);
102extern void *hr_fgroup_alloc(hr_fgroup_t *);
103extern void hr_fgroup_submit(hr_fgroup_t *, hr_wu_t, void *);
104extern errno_t hr_fgroup_wait(hr_fgroup_t *, size_t *, size_t *);
105
106#endif
107
108/** @}
109 */
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