| 1 | /*
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| 2 | * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdlib.h>
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| 11 |
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| 12 | #ifndef OPENSSL_ASYNC_H
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| 13 | # define OPENSSL_ASYNC_H
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| 14 | # pragma once
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| 15 |
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| 16 | # include <openssl/macros.h>
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| 17 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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| 18 | # define HEADER_ASYNC_H
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| 19 | # endif
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| 20 |
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| 21 | #if defined(_WIN32)
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| 22 | # if defined(BASETYPES) || defined(_WINDEF_H)
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| 23 | /* application has to include <windows.h> to use this */
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| 24 | #define OSSL_ASYNC_FD HANDLE
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| 25 | #define OSSL_BAD_ASYNC_FD INVALID_HANDLE_VALUE
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| 26 | # endif
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| 27 | #else
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| 28 | #define OSSL_ASYNC_FD int
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| 29 | #define OSSL_BAD_ASYNC_FD -1
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| 30 | #endif
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| 31 | # include <openssl/asyncerr.h>
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| 32 |
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| 33 |
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| 34 | # ifdef __cplusplus
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| 35 | extern "C" {
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| 36 | # endif
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| 37 |
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| 38 | typedef struct async_job_st ASYNC_JOB;
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| 39 | typedef struct async_wait_ctx_st ASYNC_WAIT_CTX;
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| 40 | typedef int (*ASYNC_callback_fn)(void *arg);
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| 41 |
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| 42 | #define ASYNC_ERR 0
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| 43 | #define ASYNC_NO_JOBS 1
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| 44 | #define ASYNC_PAUSE 2
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| 45 | #define ASYNC_FINISH 3
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| 46 |
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| 47 | #define ASYNC_STATUS_UNSUPPORTED 0
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| 48 | #define ASYNC_STATUS_ERR 1
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| 49 | #define ASYNC_STATUS_OK 2
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| 50 | #define ASYNC_STATUS_EAGAIN 3
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| 51 |
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| 52 | int ASYNC_init_thread(size_t max_size, size_t init_size);
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| 53 | void ASYNC_cleanup_thread(void);
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| 54 |
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| 55 | #ifdef OSSL_ASYNC_FD
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| 56 | ASYNC_WAIT_CTX *ASYNC_WAIT_CTX_new(void);
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| 57 | void ASYNC_WAIT_CTX_free(ASYNC_WAIT_CTX *ctx);
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| 58 | int ASYNC_WAIT_CTX_set_wait_fd(ASYNC_WAIT_CTX *ctx, const void *key,
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| 59 | OSSL_ASYNC_FD fd,
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| 60 | void *custom_data,
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| 61 | void (*cleanup)(ASYNC_WAIT_CTX *, const void *,
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| 62 | OSSL_ASYNC_FD, void *));
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| 63 | int ASYNC_WAIT_CTX_get_fd(ASYNC_WAIT_CTX *ctx, const void *key,
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| 64 | OSSL_ASYNC_FD *fd, void **custom_data);
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| 65 | int ASYNC_WAIT_CTX_get_all_fds(ASYNC_WAIT_CTX *ctx, OSSL_ASYNC_FD *fd,
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| 66 | size_t *numfds);
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| 67 | int ASYNC_WAIT_CTX_get_callback(ASYNC_WAIT_CTX *ctx,
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| 68 | ASYNC_callback_fn *callback,
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| 69 | void **callback_arg);
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| 70 | int ASYNC_WAIT_CTX_set_callback(ASYNC_WAIT_CTX *ctx,
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| 71 | ASYNC_callback_fn callback,
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| 72 | void *callback_arg);
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| 73 | int ASYNC_WAIT_CTX_set_status(ASYNC_WAIT_CTX *ctx, int status);
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| 74 | int ASYNC_WAIT_CTX_get_status(ASYNC_WAIT_CTX *ctx);
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| 75 | int ASYNC_WAIT_CTX_get_changed_fds(ASYNC_WAIT_CTX *ctx, OSSL_ASYNC_FD *addfd,
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| 76 | size_t *numaddfds, OSSL_ASYNC_FD *delfd,
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| 77 | size_t *numdelfds);
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| 78 | int ASYNC_WAIT_CTX_clear_fd(ASYNC_WAIT_CTX *ctx, const void *key);
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| 79 | #endif
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| 80 |
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| 81 | int ASYNC_is_capable(void);
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| 82 |
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| 83 | int ASYNC_start_job(ASYNC_JOB **job, ASYNC_WAIT_CTX *ctx, int *ret,
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| 84 | int (*func)(void *), void *args, size_t size);
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| 85 | int ASYNC_pause_job(void);
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| 86 |
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| 87 | ASYNC_JOB *ASYNC_get_current_job(void);
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| 88 | ASYNC_WAIT_CTX *ASYNC_get_wait_ctx(ASYNC_JOB *job);
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| 89 | void ASYNC_block_pause(void);
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| 90 | void ASYNC_unblock_pause(void);
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| 91 |
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| 92 |
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| 93 | # ifdef __cplusplus
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| 94 | }
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| 95 | # endif
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| 96 | #endif
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