/* 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 __printf(2, 0) 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 */