Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * C++ stream style string builder used in KUnit for building messages.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2019, Google LLC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Author: Brendan Higgins <brendanhiggins@google.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #ifndef _KUNIT_STRING_STREAM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define _KUNIT_STRING_STREAM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <stdarg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct string_stream_fragment {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	struct kunit *test;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	struct list_head node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	char *fragment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct string_stream {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	size_t length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct list_head fragments;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	/* length and fragments are protected by this lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	struct kunit *test;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	gfp_t gfp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct kunit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct string_stream *alloc_string_stream(struct kunit *test, gfp_t gfp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int __printf(2, 3) string_stream_add(struct string_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 				     const char *fmt, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int string_stream_vadd(struct string_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		       const char *fmt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		       va_list args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) char *string_stream_get_string(struct string_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int string_stream_append(struct string_stream *stream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 			 struct string_stream *other);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) bool string_stream_is_empty(struct string_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int string_stream_destroy(struct string_stream *stream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #endif /* _KUNIT_STRING_STREAM_H */