return;
fdatasync(log->fd);
+
+ /* Update disk-space usage statistics for the journal file. */
+ g_atomic_int_add(&log->disk_used, -log->current_log->disk_used);
+ struct stat statbuf;
+ if (fstat(log->fd, &statbuf) >= 0) {
+ /* Convert from 512-byte blocks to 1-kB units */
+ log->current_log->disk_used = (statbuf.st_blocks + 1) / 2;
+ }
+ g_atomic_int_add(&log->disk_used, log->current_log->disk_used);
+
while (log->committed != NULL) {
BlueSkyCloudLog *item = (BlueSkyCloudLog *)log->committed->data;
g_mutex_lock(item->lock);
cloudlog_partial_fetch_start(cachefile, async->start, async->len);
}
+ /* Update disk-space usage statistics, since the writes above may have
+ * consumed more space. */
+ g_atomic_int_add(&cachefile->log->disk_used, -cachefile->disk_used);
+ struct stat statbuf;
+ if (fstatat(cachefile->log->dirfd, cachefile->filename, &statbuf, 0) >= 0) {
+ /* Convert from 512-byte blocks to 1-kB units */
+ cachefile->disk_used = (statbuf.st_blocks + 1) / 2;
+ }
+ g_atomic_int_add(&cachefile->log->disk_used, cachefile->disk_used);
+
bluesky_cachefile_unref(cachefile);
g_cond_broadcast(cachefile->cond);
g_mutex_unlock(cachefile->lock);
if (rangeitem == NULL) {
g_print("Item at offset 0x%zx not available, need to fetch.\n",
file_offset);
- if (range_request)
- cloudlog_partial_fetch_start(map, file_offset, file_size);
+ if (range_request) {
+ uint64_t start = 0, length = 0, end;
+ if (map->prefetches != NULL)
+ bluesky_rangeset_get_extents(map->prefetches,
+ &start, &length);
+ start = MIN(start, file_offset);
+ end = MAX(start + length, file_offset + file_size);
+ length = end - start;
+ cloudlog_partial_fetch_start(map, start, length);
+ if (map->prefetches != NULL) {
+ bluesky_rangeset_free(map->prefetches);
+ map->prefetches = NULL;
+ }
+ }
g_cond_wait(map->cond, map->lock);
} else if (rangeitem->start == file_offset
&& rangeitem->length == file_size) {
off_t length = lseek(fd, 0, SEEK_END);
map->addr = (const char *)mmap(NULL, length, PROT_READ, MAP_SHARED,
fd, 0);
- g_atomic_int_add(&log->disk_used, -(map->len / 1024));
map->len = length;
- g_atomic_int_add(&log->disk_used, map->len / 1024);
g_atomic_int_inc(&map->refcount);
str = bluesky_string_new_from_mmap(map, file_offset, file_size);
map->atime = bluesky_get_current_time();
- g_print("Returning item at offset 0x%zx.\n", file_offset);
-
exit2:
bluesky_cachefile_unref(map);
g_mutex_unlock(map->lock);