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Add John MucCullough's simple key/value storage server.
[bluesky.git]
/
bluesky
/
cache.c
diff --git
a/bluesky/cache.c
b/bluesky/cache.c
index
979c917
..
e9d95cf
100644
(file)
--- a/
bluesky/cache.c
+++ b/
bluesky/cache.c
@@
-14,6
+14,7
@@
#include "bluesky-private.h"
#define WRITEBACK_DELAY (5 * 1000000)
#include "bluesky-private.h"
#define WRITEBACK_DELAY (5 * 1000000)
+#define CACHE_CLEAN_DELAY (30 * 1000000)
/* Filesystem caching and cache coherency. */
/* Filesystem caching and cache coherency. */
@@
-36,6
+37,13
@@
static void writeback_complete(gpointer a, gpointer i)
g_mutex_unlock(inode->lock);
}
g_mutex_unlock(inode->lock);
}
+/* Drop cached data for a given inode, if it is clean. inode must be locked. */
+static void drop_caches(BlueSkyInode *inode)
+{
+ if (inode->type == BLUESKY_REGULAR)
+ bluesky_file_drop_cached(inode);
+}
+
static void flushd_inode(gpointer value, gpointer user_data)
{
BlueSkyFS *fs = (BlueSkyFS *)user_data;
static void flushd_inode(gpointer value, gpointer user_data)
{
BlueSkyFS *fs = (BlueSkyFS *)user_data;
@@
-45,6
+53,9
@@
static void flushd_inode(gpointer value, gpointer user_data)
g_mutex_lock(inode->lock);
if (inode->change_count == inode->change_commit) {
g_mutex_lock(inode->lock);
if (inode->change_count == inode->change_commit) {
+ uint64_t delay = bluesky_get_current_time() - inode->access_time;
+ if (delay >= CACHE_CLEAN_DELAY)
+ drop_caches(inode);
g_mutex_unlock(inode->lock);
bluesky_inode_unref(inode);
return;
g_mutex_unlock(inode->lock);
bluesky_inode_unref(inode);
return;