From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Wed, 7 Jul 2010 19:05:04 +0000 (-0700)
Subject: Remove localstore.c; for now BDB work will be done in store-bdb.c.
X-Git-Url: https://git.vrable.net/?a=commitdiff_plain;h=0b5ec8344cacc7b652e5e0c9a92cce3e38a81c32;p=bluesky.git

Remove localstore.c; for now BDB work will be done in store-bdb.c.
---

diff --git a/bluesky/localstore.c b/bluesky/localstore.c
deleted file mode 100644
index 0ce6c6a..0000000
--- a/bluesky/localstore.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Blue Sky: File Systems in the Cloud
- *
- * Copyright (C) 2009  The Regents of the University of California
- * Written by Michael Vrable <mvrable@cs.ucsd.edu>
- *
- * TODO: Licensing
- */
-
-#include <stdint.h>
-#include <glib.h>
-#include <string.h>
-#include <db.h>
-
-#include "bluesky-private.h"
-
-/* Management of the filesystem log/cache stored on local disk.  This is used
- * as a buffer for queueing writes to the cloud, a cache for satisfying reads,
- * and is also used to provide durability for the filesystem across crashes
- * even if data has not been flushed to the cloud.
- *
- * We use Berkeley DB since it provides durability of writes after a crash. */
-
-void bluesky_localstore_init()
-{
-    int res;
-    DB_ENV *env;
-    DB *db;
-
-    res = db_env_create(&env, 0);
-
-    if (res != 0)
-    {
-        cerr << db_strerror(res) << endl;
-        throw std::runtime_error("db_env_create fail");
-    }
-
-    /* Set Cache Size To Total Memory */
-    if (true)
-    {
-        double use_fraction = 0.1;
-        uint64_t pages = sysconf(_SC_PHYS_PAGES);
-        uint64_t page_size = sysconf(_SC_PAGE_SIZE);
-
-        uint64_t bytes = pages * page_size * use_fraction / num_dbs;
-
-        uint32_t gbytes = bytes / (1024uLL * 1024uLL * 1024uLL);
-        uint32_t nbytes = bytes % (1024uLL * 1024uLL * 1024uLL);
-        uint32_t ncache = bytes / (1024uLL * 1024uLL * 1024uLL * 4uLL) + 1;
-
-        res = env->set_cachesize(env, gbytes, nbytes, ncache);
-
-        if (res != 0)
-        {
-            cerr << db_strerror(res) << endl;
-            throw std::runtime_error("set_cachesize");
-        }
-    }
-
-    if (log_in_memory)
-    {
-        res = env->set_flags(env, DB_LOG_IN_MEMORY, 1);
-
-        if (res != 0)
-        {
-            cerr << db_strerror(res) << endl;
-            throw std::runtime_error("BDB ENV DB_LOG_IN_MEMORY");
-        }
-
-    }
-
-    res = env->set_flags(env, DB_LOG_AUTO_REMOVE, 1);
-
-    if (res != 0)
-    {
-        cerr << db_strerror(res) << endl;
-        throw std::runtime_error("BDB ENV DB_LOG_AUTO_REMOVE");
-    }
-
-    res = env->open(env, _path.c_str(),
-                    DB_CREATE | DB_RECOVER | DB_INIT_LOCK | DB_INIT_LOG
-                     | DB_INIT_MPOOL | DB_INIT_TXN | DB_THREAD,
-                    0644);
-
-    if (res != 0)
-    {
-        cerr << db_strerror(res) << endl;
-        throw std::runtime_error("BDB ENV Open Fail");
-    }
-
-    string dbfilename = _path + "/test.db";
-
-    /* Flush */
-    if (flush)
-    {
-        res = env->dbremove(env, NULL, dbfilename.c_str(), "test", 0);
-
-        if (res != 0 && res != ENOENT)
-        {
-            cerr << db_strerror(res) << endl;
-            throw std::runtime_error("db remove failed");
-        }
-    }
-
-    res = db_create(&_db, env, 0);
-
-    if (res != 0)
-    {
-        cerr << db_strerror(res) << endl;
-        throw std::runtime_error("db_create fail");
-    }
-
-    uint32_t flags = DB_CREATE | DB_THREAD | DB_AUTO_COMMIT;
-
-    res = _db->open(_db,
-                   NULL, /* TXN */
-                   dbfilename.c_str(),
-                   "test",
-                   DB_BTREE,
-                   flags,
-                   0644);
-
-    if (res != 0)
-    {
-        cerr << db_strerror(res) << endl;
-        throw std::runtime_error("BDB Open Fail");
-    }
-
-}