Switched httpserver.cpp to use RAII wrapped libevents.

src/httpserver.cpp

@@ -21,13 +21,13 @@
 #include <signal.h>
 #include <future>
 
-#include <event2/event.h>
-#include <event2/http.h>
 #include <event2/thread.h>
 #include <event2/buffer.h>
 #include <event2/util.h>
 #include <event2/keyvalq_struct.h>
 
+#include "support/events.h"
+
 #ifdef EVENT__HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #ifdef _XOPEN_SOURCE_EXTENDED
@@ -369,9 +369,6 @@ static void libevent_log_cb(int severity, const char *msg)
 
 bool InitHTTPServer()
 {
-    struct evhttp* http = 0;
-    struct event_base* base = 0;
-
     if (!InitHTTPAllowList())
         return false;
 
@@ -398,17 +395,13 @@ bool InitHTTPServer()
     evthread_use_pthreads();
 #endif
 
-    base = event_base_new(); // XXX RAII
-    if (!base) {
-        LogPrintf("Couldn't create an event_base: exiting\n");
-        return false;
-    }
+    raii_event_base base_ctr = obtain_event_base();
 
     /* Create a new evhttp object to handle requests. */
-    http = evhttp_new(base); // XXX RAII
+    raii_evhttp http_ctr = obtain_evhttp(base_ctr.get());
+    struct evhttp* http = http_ctr.get();
     if (!http) {
         LogPrintf("couldn't create evhttp. Exiting.\n");
-        event_base_free(base);
         return false;
     }
 
@@ -419,8 +412,6 @@ bool InitHTTPServer()
 
     if (!HTTPBindAddresses(http)) {
         LogPrintf("Unable to bind any endpoint for RPC server\n");
-        evhttp_free(http);
-        event_base_free(base);
         return false;
     }
 
@@ -429,8 +420,9 @@ bool InitHTTPServer()
     LogPrintf("HTTP: creating work queue of depth %d\n", workQueueDepth);
 
     workQueue = new WorkQueue<HTTPClosure>(workQueueDepth);
-    eventBase = base;
-    eventHTTP = http;
+    // tranfer ownership to eventBase/HTTP via .release()
+    eventBase = base_ctr.release();
+    eventHTTP = http_ctr.release();
     return true;
 }