First attempt at supporting reading data back from cloud log segments.

[bluesky.git] / bluesky / cloudlog.c

diff --git a/bluesky/cloudlog.c b/bluesky/cloudlog.c
index 6e57d05..0c3fb02 100644 (file)
--- a/bluesky/cloudlog.c
+++ b/bluesky/cloudlog.c
@@ -202,12 +202,21 @@ void bluesky_cloudlog_fetch(BlueSkyCloudLog *log)
     if (log->data != NULL)
         return;
 
-    g_assert((log->location_flags | log->pending_write) & CLOUDLOG_JOURNAL);
-
-    bluesky_cloudlog_stats_update(log, -1);
-    log->data = bluesky_log_map_object(log->fs->log, log->log_seq,
-                                       log->log_offset, log->log_size);
-    bluesky_cloudlog_stats_update(log, 1);
+    if ((log->location_flags | log->pending_write) & CLOUDLOG_JOURNAL) {
+        bluesky_cloudlog_stats_update(log, -1);
+        log->data = bluesky_log_map_object(log->fs, -1, log->log_seq,
+                                           log->log_offset, log->log_size);
+        bluesky_cloudlog_stats_update(log, 1);
+    } else if (log->location_flags & CLOUDLOG_CLOUD) {
+        bluesky_cloudlog_stats_update(log, -1);
+        log->data = bluesky_log_map_object(log->fs, log->location.directory,
+                                           log->location.sequence,
+                                           log->location.offset,
+                                           log->location.size);
+        bluesky_cloudlog_stats_update(log, 1);
+    } else {
+        g_error("Unable to fetch cloudlog entry!");
+    }
 
     g_cond_broadcast(log->cond);
 }
@@ -234,11 +243,13 @@ BlueSkyCloudPointer bluesky_cloudlog_serialize(BlueSkyCloudLog *log,
 
     bluesky_cloudlog_stats_update(log, -1);
 
+    /* TODO: Right now offset/size are set to the raw data, but we should add
+     * header parsing to the code which loads objects back in. */
     log->location = state->location;
-    log->location.offset = state->data->len;
-    log->location.size
-        = sizeof(struct log_header) + sizeof(BlueSkyCloudID) * 0
-           + log->data->len;
+    log->location.offset = state->data->len + sizeof(struct log_header);
+    log->location.size = log->data->len;
+        /* = sizeof(struct log_header) + sizeof(BlueSkyCloudID) * 0
+           + log->data->len; */
 
     struct log_header header;
     memcpy(header.magic, "AgI ", 4);