Added support for macOS 27

.github/workflows/build.yml

@@ -5,6 +5,12 @@ on:
     branches: [main]
   pull_request:
 
+# A new push to a PR cancels its older runs. Pushes to main get a unique
+# group (the run id), so they are never cancelled or queued behind each other.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 jobs:
    build-linux:
     strategy:
@@ -563,9 +569,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # macos-15-intel = Intel (x86_64, /usr/local); macos-15 / macos-26 =
+        # macos-15-intel = Intel (x86_64, /usr/local); macos-26 / macos-27 =
         # Apple Silicon (arm64, /opt/homebrew).
-        os: ['macos-15-intel', 'macos-15', 'macos-26']
+        os: ['macos-15-intel', 'macos-26', 'xcode-27' ]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout repo

README.md

@@ -56,7 +56,7 @@ clients concurrently.
 
 ## Quick start
 
-Tested continuously on **Ubuntu 22.04 / 24.04 / 26.04** and **macOS 15 / 26** (Intel and Apple
+Tested continuously on **Ubuntu 22.04 / 24.04 / 26.04** and **macOS 15 / 26 / 27** (Intel and Apple
 Silicon). Other Linux distributions generally work as well.
 
 On Ubuntu you can install a prebuilt package instead of building from source (replace `24.04`

Tools/DFS/cli/cli.h

@@ -44,27 +44,16 @@ class Duration {
   timespec c;
 public:
 
-#if (_POSIX_C_SOURCE >= 199309L)
   void start() {
     clock_gettime(CLOCK_REALTIME, &c);
   }
 
   double measureMS() {
     timespec stopped;
     clock_gettime(CLOCK_REALTIME, &stopped);
-    return (stopped.tv_sec - c.tv_sec) + (stopped.tv_nsec - c.tv_nsec)
-                                         / 1E9;
+    return (stopped.tv_sec - c.tv_sec) * 1E3
+           + (stopped.tv_nsec - c.tv_nsec) / 1E6;
   }
-#else
-  void start(){
-
-  }
-
-  double measureMS(){
-     return -1.0;
-  }
-#endif
-
 
 };
 

Tools/DFS/commlayer/EndpointClient.cpp

@@ -38,6 +38,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #include <netinet/in.h>
 #include <netdb.h>
 #include <iostream>
+#include <vector>
 #include <errno.h>
 #include "RemoteCommandBuilder.h"
 
@@ -120,8 +121,8 @@ Str EndpointClient::sendSyncMessage(URI uri, const Str &msg, bool doEnvelope) {
   }
 
   int ibufsize = buffersize;
-  char ibuf[ibufsize];
-  bzero(ibuf, ibufsize);
+  std::vector<char> ibufStorage(ibufsize);
+  char* ibuf = ibufStorage.data();
 
   if (canDebug) debug("Hole Serveranwort...");
   Str result;

Tools/DFS/commlayer/WebServer.cpp

@@ -121,7 +121,7 @@ void WebServer::listen() {
   ::listen(sockfd, 5);
 
   clilen = sizeof(cli_addr);
-  int bufsize = 65536;
+  const int bufsize = 65536;
   char buf[bufsize];
 
   //auf clients warten

Tools/DFS/commlayer/comm.cpp

@@ -38,6 +38,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #include <netinet/in.h>
 #include <netdb.h>
 #include <iostream>
+#include <vector>
 
 using namespace std;
 
@@ -109,8 +110,8 @@ void Endpoint::listen() {
 
     if (canDebug) debug("prepare data exchange with client");
 
-    char buffer[bufsize];
-    bzero(buffer, bufsize);
+    std::vector<char> bufferStorage(bufsize);
+    char* buffer = bufferStorage.data();
     Str input;
     int totalReceived = 0;
     if (canDebug) debug("fetching data from client");

Tools/DFS/datanode/DataNodeClientHandlerFactory.cpp

@@ -35,7 +35,6 @@ DataNodeClientHandlerFactory::DataNodeClientHandlerFactory(
   const DataNode *dataNode, int maxHandlerCount, dfs::log::Logger *l) {
   this->maxHandlerCount = maxHandlerCount;
   this->logger = l;
-  // this->nodeState = nodeState; // self assignment: makes no sense
   this->dataNode = dataNode;
   this->freeHandlerId = 0;
   this->maxHandlerCount = 8;

Tools/DFS/datanode/DataNodeClientHandlerFactory.h

@@ -45,7 +45,6 @@ namespace dfs {
     const DataNode *dataNode;
     DataNodeClientHandler *handlers;
     dfs::log::Logger *logger;
-    State *nodeState;
 
     void debug(const Str &s) {
       logger->debug(s);

Tools/DFS/shared/FigureSystem.cpp

@@ -28,6 +28,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 #include "FigureSystem.h"
 
+#include <vector>
+
 using namespace dfs;
 
 const char *figures = "0123456789abcdefghijklmnopqrstuvwxyz";
@@ -69,12 +71,12 @@ void FigureSystem::refactor() {
 }
 
 Str FigureSystem::toStr() {
-  char tmp[base];
+  std::vector<char> tmp(length);
   for (int i = 0; i < length; i++) {
     unsigned char v = (unsigned char) values[i];
     tmp[length - i - 1] = figures[v];
   }
-  return Str(tmp, length);
+  return Str(tmp.data(), length);
 }
 
 void FigureSystem::fromStr(const Str &strValue) {

Tools/DFS/shared/io.cpp

@@ -42,7 +42,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 #if (_POSIX_C_SOURCE < 200112L) 
   int posix_fallocate(int fd, off_t offset, off_t len){
-    size_t bs = len<4096?len:4096;
+    const size_t bs = 4096;
     char buffer[bs];
     memset(buffer, 0, bs);
     size_t remaining = len;

Tools/DFS/shared/str.h

@@ -427,6 +427,7 @@ namespace dfs {
    */
   class SerializeAble {
   public:
+    virtual ~SerializeAble() {}
     virtual void serializeTo(ToStrSerializer &serializer) const = 0;
   };