X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/8e2a225aa6cd1848a282d3d96742759cc24fc7e8..35e29472609cb3345809d48f0b4e7c75b6c1be6f:/src/migrate.c

diff --git a/src/migrate.c b/src/migrate.c
index a00f0e63..59d2ed5a 100644
--- a/src/migrate.c
+++ b/src/migrate.c
@@ -252,41 +252,52 @@ socket_rd_err:
     return;
 }
 
-void mdb(void) {
-    int ret;
+void stopKeyArchive(void) {
+    redisAssert(env != NULL);
 
-    if (env != NULL)
-        return;
+    mdb_dbi_close(env, dbi);
+    mdb_env_close(env);
+    env = NULL;
+
+    server.mdb_state = REDIS_MDB_OFF;
+}
+
+int startKeyArchive(void) {
+    redisAssert(env == NULL);
+
+    int ret;
 
     ret = mdb_env_create(&env);
-    redisAssert(ret == 0);
+    if (ret != 0) return ret;
 
     ret = mdb_env_set_mapsize(env, server.mdb_mapsize);
-    redisAssert(ret == 0);
+    if (ret != 0) return ret;
 
     ret = mdb_env_set_maxdbs(env, 1);
-    redisAssert(ret == 0);
+    if (ret != 0) return ret;
 
-    mkdir(server.mdb_environment, 0644);
+    mkdir(server.mdb_environment, 0755);
 
-    ret = mdb_env_open(env, server.mdb_environment, MDB_FIXEDMAP | MDB_NOSYNC, 0664);
-    redisAssert(ret == 0);
+    ret = mdb_env_open(env, server.mdb_environment, MDB_FIXEDMAP | MDB_NOSYNC, 0644);
+    if (ret != 0) return ret;
 
     MDB_txn *txn;
     ret = mdb_txn_begin(env, NULL, 0, &txn);
-    redisAssert(ret == 0);
+    if (ret != 0) return ret;
 
     ret = mdb_open(txn, NULL, 0, &dbi);
-    redisAssert(ret == 0);
+    if (ret != 0) return ret;
 
     mdb_txn_commit(txn);
+
+    server.mdb_state = REDIS_MDB_ON;
+    return 0;
 }
 
 int archive(redisDb *db, robj *key) {
     if (server.mdb_state == REDIS_MDB_OFF)
         return 1;
-
-    mdb();
+    redisAssert(env != NULL);
 
     MDB_val kval;
     kval.mv_data = key->ptr;
@@ -298,7 +309,7 @@ int archive(redisDb *db, robj *key) {
         return 0;
 
     if (object->archived != 0)
-        return 0;
+        return 1;
 
     rio payload;
     createDumpPayload(&payload, object);
@@ -336,8 +347,6 @@ robj *recover(redisDb *db, robj *key) {
 
     int ret;
 
-    mdb();
-
     MDB_val kval;
     kval.mv_data = key->ptr;
     kval.mv_size = sdslen((sds)key->ptr);
@@ -389,3 +398,27 @@ recover_err:
     sdsfree(sval);
     return NULL;
 }
+
+void purge(robj *key) {
+    if (server.mdb_state == REDIS_MDB_OFF)
+        return;
+
+    int ret;
+
+    MDB_val kval;
+    kval.mv_data = key->ptr;
+    kval.mv_size = sdslen((sds)key->ptr);
+
+    MDB_txn *txn;
+    ret = mdb_txn_begin(env, NULL, 0, &txn);
+    if (ret != 0)
+        return;
+
+    ret = mdb_del(txn, dbi, &kval, NULL);
+    if (ret != 0) {
+        mdb_txn_abort(txn);
+        return;
+    }
+
+    mdb_txn_commit(txn);
+}