rest: added getLastBlockInfo endpoint

.github/workflows/ci.yml

@@ -81,7 +81,7 @@ jobs:
             goal: install
           - name: x86_64-macos
             host: x86_64-apple-darwin15
-            os: macos-12
+            os: macos-13
             run-tests: true
             dep-opts: "SPEED=slow V=1"
             config-opts: "--enable-static --disable-shared --enable-test-passwd"

include/dogecoin/spv.h

@@ -54,6 +54,9 @@ typedef struct dogecoin_spv_client_
     dogecoin_bool called_sync_completed;
     void *headers_db_ctx;
     const dogecoin_headers_db_interface *headers_db;
+    uint64_t last_block_size;
+    uint64_t last_block_tx_count;
+    uint64_t last_block_total_tx_size;
 
     /* callbacks */
     /* ========= */

src/rest.c

@@ -33,6 +33,7 @@
 #include <dogecoin/spv.h>
 #include <dogecoin/wallet.h>
 
+#define TIMESTAMP_MAX_LEN 32
 
 /**
  * This function is called when an http request is received
@@ -207,6 +208,21 @@ void dogecoin_http_request_cb(struct evhttp_request *req, void *arg) {
     } else if (strcmp(path, "/getChaintip") == 0) {
         dogecoin_blockindex* tip = client->headers_db->getchaintip(client->headers_db_ctx);
         evbuffer_add_printf(evb, "Chain tip: %d\n", tip->height);
+    } else if (strcmp(path, "/getTimestamp") == 0) {
+        dogecoin_blockindex* tip = client->headers_db->getchaintip(client->headers_db_ctx);
+        char s[TIMESTAMP_MAX_LEN];
+        time_t t = tip->header.timestamp;
+        struct tm *p = localtime(&t);
+        strftime(s, sizeof(s), "%F %T", p);
+        evbuffer_add_printf(evb, "%s\n", s);
+    } else if (strcmp(path, "/getLastBlockInfo") == 0) {
+        uint64_t size = client->last_block_size;
+        uint64_t tx_count = client->last_block_tx_count;
+        uint64_t total_tx_size = client->last_block_total_tx_size;
+
+        evbuffer_add_printf(evb, "Block size: %lu\n", size);
+        evbuffer_add_printf(evb, "Tx count: %lu\n", tx_count);
+        evbuffer_add_printf(evb, "Total tx size: %lu\n", total_tx_size);
     } else {
         evhttp_send_error(req, HTTP_NOTFOUND, "Not Found");
         evbuffer_free(evb);

src/spv.c

@@ -582,6 +582,12 @@ void dogecoin_net_spv_post_cmd(dogecoin_node *node, dogecoin_p2p_msg_hdr *hdr, s
 
             client->nodegroup->log_write_cb("Start parsing %d transactions...\n", (int)amount_of_txs);
 
+            // update the last block info for the client
+            client->last_block_tx_count = amount_of_txs;
+            client->last_block_size = hdr->data_len;
+
+            uint64_t total_tx_size = 0;
+
             size_t consumedlength = 0;
             unsigned int i;
             for (i = 0; i < amount_of_txs; i++)
@@ -599,9 +605,10 @@ void dogecoin_net_spv_post_cmd(dogecoin_node *node, dogecoin_p2p_msg_hdr *hdr, s
                 }
                 deser_skip(buf, consumedlength);
                 if (client->sync_transaction) { client->sync_transaction(client->sync_transaction_ctx, tx, i, pindex); }
+                total_tx_size += consumedlength;
                 dogecoin_tx_free(tx);
             }
-
+            client->last_block_total_tx_size = total_tx_size;
             client->nodegroup->log_write_cb("done (took %lld secs)\n", (unsigned long long)(time(NULL) - start));
         }
         else