| /* 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/types.h> |
| #include <linux/spinlock.h> |
| #include <stdarg.h> |
| |
| struct string_stream_fragment { |
| 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 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); |
| |
| void string_stream_clear(struct string_stream *stream); |
| |
| bool string_stream_is_empty(struct string_stream *stream); |
| |
| #endif /* _KUNIT_STRING_STREAM_H */ |