1 /* Blue Sky: File Systems in the Cloud
3 * Copyright (C) 2009 The Regents of the University of California
4 * Written by Michael Vrable <mvrable@cs.ucsd.edu>
17 /* Interface to Amazon S3 storage. */
19 /* Simple in-memory data store for test purposes. */
21 S3BucketContext bucket;
24 static gpointer s3store_new()
26 S3Store *store = g_new(S3Store, 1);
27 store->bucket.bucketName = "mvrable-bluesky";
28 store->bucket.protocol = S3ProtocolHTTP;
29 store->bucket.uriStyle = S3UriStylePath;
30 store->bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
31 store->bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
33 g_print("Initializing S3 with bucket %s, access key %s\n",
34 store->bucket.bucketName, store->bucket.accessKeyId);
39 static void s3store_destroy(gpointer store)
49 static S3Status s3store_get_handler(int bufferSize, const char *buffer,
52 struct get_info *info = (struct get_info *)callbackData;
53 gint bytes = MIN(bufferSize, (int)(BLUESKY_BLOCK_SIZE - info->offset));
54 memcpy(info->buf + info->offset, buffer, bytes);
55 info->offset += bytes;
64 static int s3store_put_handler(int bufferSize, char *buffer,
67 struct put_info *info = (struct put_info *)callbackData;
68 gint bytes = MIN(bufferSize, (int)(info->val->len - info->offset));
69 memcpy(buffer, (char *)info->val->data + info->offset, bytes);
70 info->offset += bytes;
74 static S3Status s3store_properties_callback(const S3ResponseProperties *properties,
77 g_print("(Properties callback)\n");
81 static void s3store_response_callback(S3Status status,
82 const S3ErrorDetails *errorDetails,
85 g_print("S3 operation complete, status=%s\n",
86 S3_get_status_name(status));
87 if (errorDetails != NULL) {
88 g_print(" Error message: %s\n", errorDetails->message);
92 static BlueSkyRCStr *s3store_get(gpointer s, const gchar *key)
94 S3Store *store = (S3Store *)s;
97 info.buf = (char *)g_malloc0(BLUESKY_BLOCK_SIZE);
100 struct S3GetObjectHandler handler;
101 handler.responseHandler.propertiesCallback = s3store_properties_callback;
102 handler.responseHandler.completeCallback = s3store_response_callback;
103 handler.getObjectDataCallback = s3store_get_handler;
105 g_print("Starting fetch of %s from S3...\n", key);
106 S3_get_object(&store->bucket, key, NULL, 0, 0, NULL,
109 return bluesky_string_new(info.buf, BLUESKY_BLOCK_SIZE);
112 static void s3store_put(gpointer s, const gchar *key, BlueSkyRCStr *val)
114 S3Store *store = (S3Store *)s;
116 struct put_info info;
120 struct S3PutObjectHandler handler;
121 handler.responseHandler.propertiesCallback = s3store_properties_callback;
122 handler.responseHandler.completeCallback = s3store_response_callback;
123 handler.putObjectDataCallback = s3store_put_handler;
125 g_print("Starting store of %s to S3...\n", key);
126 S3_put_object(&store->bucket, key, val->len, NULL, NULL,
130 static BlueSkyStoreImplementation store_impl = {
131 .create = s3store_new,
132 .destroy = s3store_destroy,
137 void bluesky_store_init_s3(void)
139 S3_initialize(NULL, S3_INIT_ALL);
140 bluesky_store_register(&store_impl, "s3");