Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * C++ stream style string builder used in KUnit for building messages.
 *
 * Copyright (C) 2019, Google LLC.
 * Author: Brendan Higgins <brendanhiggins@google.com>
 */
 
#ifndef _KUNIT_STRING_STREAM_H
#define _KUNIT_STRING_STREAM_H
 
#include <linux/spinlock.h>
#include <linux/types.h>
#include <stdarg.h>
 
struct string_stream_fragment {
<------>struct kunit *test;
<------>struct list_head node;
<------>char *fragment;
};
 
struct string_stream {
<------>size_t length;
<------>struct list_head fragments;
<------>/* length and fragments are protected by this lock */
<------>spinlock_t lock;
<------>struct kunit *test;
<------>gfp_t gfp;
};
 
struct kunit;
 
struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp);
 
int __printf(2, 3) string_stream_add(struct string_stream *stream,
<------><------><------><------>     const char *fmt, ...);
 
int string_stream_vadd(struct string_stream *stream,
<------><------>       const char *fmt,
<------><------>       va_list args);
 
char *string_stream_get_string(struct string_stream *stream);
 
int string_stream_append(struct string_stream *stream,
<------><------><------> struct string_stream *other);
 
bool string_stream_is_empty(struct string_stream *stream);
 
int string_stream_destroy(struct string_stream *stream);
 
#endif /* _KUNIT_STRING_STREAM_H */