Cross Reference: /dovecot/src/lib/file-cache.c

Lines Matching refs:size
57 int file_cache_set_size(struct file_cache *cache, uoff_t size)
65 	diff = size % page_size;
67 		size += page_size - diff;
69 	i_assert((size % page_size) == 0);
70 	if (size <= cache->mmap_length)
73 	if (size > (size_t)-1) {
74 		i_error("file_cache_set_size(%s, %"PRIuUOFF_T"): size too large",
75 			cache->path, size);
81 		cache->mmap_base = mmap_anon(size);
84 				cache->path, size);
91 				       size, MREMAP_MAYMOVE);
94 				cache->path, size);
100 	cache->mmap_length = size;
104 ssize_t file_cache_read(struct file_cache *cache, uoff_t offset, size_t size)
113 	if (size > SSIZE_T_MAX) {
117 		size = SSIZE_T_MAX;
119 	if (offset >= (uoff_t)-1 - size)
120 		size = (uoff_t)-1 - offset;
122 	if (offset + size > cache->mmap_length &&
123 	    offset + size - cache->mmap_length > 1024*1024) {
135 		if (offset + size > (uoff_t)st.st_size) {
138 			size = (uoff_t)st.st_size - offset;
142 	if (file_cache_set_size(cache, offset + size) < 0)
146 	psize = (offset + size + page_size-1) / page_size - poffset;
170 			if (offset + size <= cache->read_highwater) {
197 				dest_offset - offset < size ?
198 				dest_offset - offset : size;
227 	return size;
236 void file_cache_write(struct file_cache *cache, const void *data, size_t size,
244 	i_assert((uoff_t)-1 - offset > size);
246 	if (file_cache_set_size(cache, offset + size) < 0) {
249 		file_cache_invalidate(cache, offset, size);
253 	memcpy(PTR_OFFSET(cache->mmap_base, offset), data, size);
255 	if (cache->read_highwater < offset + size) {
261 		cache->read_highwater = offset + size;
265 	if (size >= page_size) {
267 		last_page = (offset + size) / page_size;
280 void file_cache_invalidate(struct file_cache *cache, uoff_t offset, uoff_t size)
286 	if (offset >= cache->read_highwater || size == 0)
291 	if (size > cache->read_highwater - offset) {
293 		size = cache->read_highwater - offset;
295 	if (size >= cache->read_highwater) {
301 	size = (offset + size + page_size-1) / page_size;
303 	i_assert(size > offset);
304 	size -= offset;
306 	if (size != 1) {
312 			      size * page_size, MADV_DONTNEED);
316 				       1 + (size + CHAR_BIT - 1) / CHAR_BIT);
319 	for (i = offset % CHAR_BIT, mask = 0; i < CHAR_BIT && size > 0; i++) {
321 		size--;
326 	memset(bits, 0, size / CHAR_BIT);
327 	bits += size / CHAR_BIT;
328 	size %= CHAR_BIT;
331 	if (size > 0) {
332 		for (i = 0, mask = 0; i < size; i++)