Move C/C++ sources to src subdirectory

src/osd_main.cpp

@@ -0,0 +1,56 @@
+// Copyright (c) Vitaliy Filippov, 2019+
+// License: VNPL-1.1 (see README.md for details)
+
+#include "osd.h"
+
+#include <signal.h>
+
+static osd_t *osd = NULL;
+static bool force_stopping = false;
+
+static void handle_sigint(int sig)
+{
+    if (osd && !force_stopping)
+    {
+        force_stopping = true;
+        osd->force_stop(0);
+        return;
+    }
+    exit(0);
+}
+
+int main(int narg, char *args[])
+{
+    setvbuf(stdout, NULL, _IONBF, 0);
+    setvbuf(stderr, NULL, _IONBF, 0);
+    if (sizeof(osd_any_op_t) > OSD_PACKET_SIZE ||
+        sizeof(osd_any_reply_t) > OSD_PACKET_SIZE)
+    {
+        perror("BUG: too small packet size");
+        return 1;
+    }
+    blockstore_config_t config;
+    for (int i = 1; i < narg; i++)
+    {
+        if (args[i][0] == '-' && args[i][1] == '-' && i < narg-1)
+        {
+            char *opt = args[i]+2;
+            config[opt] = args[++i];
+        }
+    }
+    signal(SIGINT, handle_sigint);
+    signal(SIGTERM, handle_sigint);
+    ring_loop_t *ringloop = new ring_loop_t(512);
+    // FIXME: Create Blockstore from on-disk superblock config and check it against the OSD cluster config
+    blockstore_t *bs = new blockstore_t(config, ringloop);
+    osd = new osd_t(config, bs, ringloop);
+    while (1)
+    {
+        ringloop->loop();
+        ringloop->wait();
+    }
+    delete osd;
+    delete bs;
+    delete ringloop;
+    return 0;
+}