3  * C++ stream style string builder used in KUnit for building messages.
13 #include "string-stream.h"
40 int string_stream_vadd(struct string_stream *stream,  in string_stream_vadd()  argument
56 	frag_container = alloc_string_stream_fragment(stream->test,  in string_stream_vadd()
58 						      stream->gfp);  in string_stream_vadd()
63 	spin_lock(&stream->lock);  in string_stream_vadd()
64 	stream->length += len;  in string_stream_vadd()
65 	list_add_tail(&frag_container->node, &stream->fragments);  in string_stream_vadd()
66 	spin_unlock(&stream->lock);  in string_stream_vadd()
71 int string_stream_add(struct string_stream *stream, const char *fmt, ...)  in string_stream_add()  argument
77 	result = string_stream_vadd(stream, fmt, args);  in string_stream_add()
83 static void string_stream_clear(struct string_stream *stream)  in string_stream_clear()  argument
87 	spin_lock(&stream->lock);  in string_stream_clear()
90 				 &stream->fragments,  in string_stream_clear()
92 		string_stream_fragment_destroy(stream->test, frag_container);  in string_stream_clear()
94 	stream->length = 0;  in string_stream_clear()
95 	spin_unlock(&stream->lock);  in string_stream_clear()
98 char *string_stream_get_string(struct string_stream *stream)  in string_stream_get_string()  argument
101 	size_t buf_len = stream->length + 1; /* +1 for null byte. */  in string_stream_get_string()
104 	buf = kunit_kzalloc(stream->test, buf_len, stream->gfp);  in string_stream_get_string()
108 	spin_lock(&stream->lock);  in string_stream_get_string()
109 	list_for_each_entry(frag_container, &stream->fragments, node)  in string_stream_get_string()
111 	spin_unlock(&stream->lock);  in string_stream_get_string()
116 int string_stream_append(struct string_stream *stream,  in string_stream_append()  argument
126 	return string_stream_add(stream, other_content);  in string_stream_append()
129 bool string_stream_is_empty(struct string_stream *stream)  in string_stream_is_empty()  argument
131 	return list_empty(&stream->fragments);  in string_stream_is_empty()
141 	struct string_stream *stream;  in alloc_string_stream()  local
143 	stream = kunit_kzalloc(test, sizeof(*stream), gfp);  in alloc_string_stream()
144 	if (!stream)  in alloc_string_stream()
147 	stream->gfp = gfp;  in alloc_string_stream()
148 	stream->test = test;  in alloc_string_stream()
149 	INIT_LIST_HEAD(&stream->fragments);  in alloc_string_stream()
150 	spin_lock_init(&stream->lock);  in alloc_string_stream()
152 	return stream;  in alloc_string_stream()
155 void string_stream_destroy(struct string_stream *stream)  in string_stream_destroy()  argument
157 	string_stream_clear(stream);  in string_stream_destroy()