3  * C++ stream style string builder used in KUnit for building messages.
14 #include "string-stream.h"
41 int string_stream_vadd(struct string_stream *stream,  in string_stream_vadd()  argument
61 	if (stream->append_newlines)  in string_stream_vadd()
67 	frag_container = alloc_string_stream_fragment(buf_len, stream->gfp);  in string_stream_vadd()
71 	if (stream->append_newlines) {  in string_stream_vadd()
82 	spin_lock(&stream->lock);  in string_stream_vadd()
83 	stream->length += result_len;  in string_stream_vadd()
84 	list_add_tail(&frag_container->node, &stream->fragments);  in string_stream_vadd()
85 	spin_unlock(&stream->lock);  in string_stream_vadd()
90 int string_stream_add(struct string_stream *stream, const char *fmt, ...)  in string_stream_add()  argument
96 	result = string_stream_vadd(stream, fmt, args);  in string_stream_add()
102 void string_stream_clear(struct string_stream *stream)  in string_stream_clear()  argument
106 	spin_lock(&stream->lock);  in string_stream_clear()
109 				 &stream->fragments,  in string_stream_clear()
113 	stream->length = 0;  in string_stream_clear()
114 	spin_unlock(&stream->lock);  in string_stream_clear()
117 char *string_stream_get_string(struct string_stream *stream)  in string_stream_get_string()  argument
120 	size_t buf_len = stream->length + 1; /* +1 for null byte. */  in string_stream_get_string()
123 	buf = kzalloc(buf_len, stream->gfp);  in string_stream_get_string()
127 	spin_lock(&stream->lock);  in string_stream_get_string()
128 	list_for_each_entry(frag_container, &stream->fragments, node)  in string_stream_get_string()
130 	spin_unlock(&stream->lock);  in string_stream_get_string()
135 int string_stream_append(struct string_stream *stream,  in string_stream_append()  argument
146 	ret = string_stream_add(stream, other_content);  in string_stream_append()
152 bool string_stream_is_empty(struct string_stream *stream)  in string_stream_is_empty()  argument
154 	return list_empty(&stream->fragments);  in string_stream_is_empty()
159 	struct string_stream *stream;  in alloc_string_stream()  local
161 	stream = kzalloc(sizeof(*stream), gfp);  in alloc_string_stream()
162 	if (!stream)  in alloc_string_stream()
165 	stream->gfp = gfp;  in alloc_string_stream()
166 	INIT_LIST_HEAD(&stream->fragments);  in alloc_string_stream()
167 	spin_lock_init(&stream->lock);  in alloc_string_stream()
169 	return stream;  in alloc_string_stream()
172 void string_stream_destroy(struct string_stream *stream)  in string_stream_destroy()  argument
174 	KUNIT_STATIC_STUB_REDIRECT(string_stream_destroy, stream);  in string_stream_destroy()
176 	if (IS_ERR_OR_NULL(stream))  in string_stream_destroy()
179 	string_stream_clear(stream);  in string_stream_destroy()
180 	kfree(stream);  in string_stream_destroy()
185 	struct string_stream *stream = p;  in resource_free_string_stream()  local
187 	string_stream_destroy(stream);  in resource_free_string_stream()
192 	struct string_stream *stream;  in kunit_alloc_string_stream()  local
194 	stream = alloc_string_stream(gfp);  in kunit_alloc_string_stream()
195 	if (IS_ERR(stream))  in kunit_alloc_string_stream()
196 		return stream;  in kunit_alloc_string_stream()
198 	if (kunit_add_action_or_reset(test, resource_free_string_stream, stream) != 0)  in kunit_alloc_string_stream()
201 	return stream;  in kunit_alloc_string_stream()
204 void kunit_free_string_stream(struct kunit *test, struct string_stream *stream)  in kunit_free_string_stream()  argument
206 	kunit_release_action(test, resource_free_string_stream, (void *)stream);  in kunit_free_string_stream()