[22624] System Log error: infinite loop when setting thread affinity fails

src/cpp/utils/threading/threading.hpp

@@ -0,0 +1,29 @@
+// Copyright 2025 Proyectos y Sistemas de Mantenimiento SL (eProsima).
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/*!
+ * @file threading.hpp
+ */
+
+#define THREAD_EPROSIMA_LOG_ERROR(thread_name, msg)                         \
+    do{                                                                     \
+        if (strcmp(thread_name, "dds.log") == 0)                            \
+        {                                                                   \
+            std::cerr << msg << std::endl;                                  \
+        }                                                                   \
+        else                                                                \
+        {                                                                   \
+            EPROSIMA_LOG_ERROR(SYSTEM, msg);                                \
+        }                                                                   \
+    } while (0)

src/cpp/utils/threading/threading_osx.ipp

@@ -22,6 +22,7 @@
 
 #include <fastdds/dds/log/Log.hpp>
 #include <fastdds/rtps/attributes/ThreadSettings.hpp>
+#include <utils/threading/threading.hpp>
 
 namespace eprosima {
 
@@ -98,13 +99,13 @@ static void configure_current_thread_scheduler(
             result = setpriority(PRIO_PROCESS, tid, sched_priority);
             if (0 != result)
             {
-                EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set priority of thread with id [" << tid << "," << thread_name << "] to value " << sched_priority << ". Error '" << strerror(
+                THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set priority of thread with id [" << tid << "," << thread_name << "] to value " << sched_priority << ". Error '" << strerror(
                             result) << "'");
             }
         }
         else if (0 != result)
         {
-            EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << ". Error '" << strerror(
+            THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << ". Error '" << strerror(
                         result) << "'");
         }
     }
@@ -118,7 +119,7 @@ static void configure_current_thread_scheduler(
         result = pthread_setschedparam(self_tid, sched_class, &param);
         if (0 != result)
         {
-            EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << " with priority " << param.sched_priority << ". Error '" << strerror(
+            THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << " with priority " << param.sched_priority << ". Error '" << strerror(
                         result) << "'");
         }
     }
@@ -138,7 +139,7 @@ static void configure_current_thread_affinity(
                         1);
         if (0 != result)
         {
-            EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set affinity of thread with id [" << self_tid << "," << thread_name << "] to value " << affinity << ". Error '" << strerror(
+            THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set affinity of thread with id [" << self_tid << "," << thread_name << "] to value " << affinity << ". Error '" << strerror(
                         result) << "'");
         }
     }

src/cpp/utils/threading/threading_pthread.ipp

@@ -25,6 +25,7 @@
 
 #include <fastdds/dds/log/Log.hpp>
 #include <fastdds/rtps/attributes/ThreadSettings.hpp>
+#include <utils/threading/threading.hpp>
 
 #if defined(__GLIBC__) && ((__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ <= 30)))
 #include <sys/syscall.h>
@@ -114,13 +115,13 @@ static void configure_current_thread_scheduler(
             result = setpriority(PRIO_PROCESS, gettid(), sched_priority);
             if (0 != result)
             {
-                EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set priority of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_priority << ". Error '" << strerror(
+                THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set priority of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_priority << ". Error '" << strerror(
                             result) << "'");
             }
         }
         else if (0 != result)
         {
-            EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << ". Error '" << strerror(
+            THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << ". Error '" << strerror(
                         result) << "'");
         }
     }
@@ -135,7 +136,7 @@ static void configure_current_thread_scheduler(
         result = pthread_setschedparam(self_tid, sched_class, &param);
         if (0 != result)
         {
-            EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << " with priority " << param.sched_priority << ". Error '" << strerror(
+            THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set scheduler of thread with id [" << self_tid << "," << thread_name << "] to value " << sched_class << " with priority " << param.sched_priority << ". Error '" << strerror(
                         result) << "'");
         }
     }
@@ -178,7 +179,7 @@ static void configure_current_thread_affinity(
 
     if (affinity_mask > 0)
     {
-        EPROSIMA_LOG_ERROR(SYSTEM, "Affinity mask has more processors than the ones present in the system");
+        THREAD_EPROSIMA_LOG_ERROR(thread_name, "Affinity mask has more processors than the ones present in the system");
     }
 
     if (result > 0)
@@ -192,7 +193,7 @@ static void configure_current_thread_affinity(
 
     if (0 != result)
     {
-        EPROSIMA_LOG_ERROR(SYSTEM, "Problem to set affinity of thread with id [" << self_tid << "," << thread_name << "] to value " << affinity_mask << ". Error '" << strerror(
+        THREAD_EPROSIMA_LOG_ERROR(thread_name, "Problem to set affinity of thread with id [" << self_tid << "," << thread_name << "] to value " << affinity_mask << ". Error '" << strerror(
                     result) << "'");
     }
 }

src/cpp/utils/threading/threading_win32.ipp

@@ -19,6 +19,7 @@
 #include <processthreadsapi.h>
 
 #include <fastdds/rtps/attributes/ThreadSettings.hpp>
+#include <utils/threading/threading.hpp>
 
 namespace eprosima {
 
@@ -69,7 +70,7 @@ static void configure_current_thread_priority(
     {
         if (0 == SetThreadPriority(GetCurrentThread(), priority))
         {
-            EPROSIMA_LOG_ERROR(SYSTEM,
+            THREAD_EPROSIMA_LOG_ERROR(thread_name,
                     "Problem to set priority of thread with id [" << GetCurrentThreadId() << "," << thread_name << "] to value " << priority <<
                     ". Error '" << GetLastError() << "'");
         }
@@ -84,7 +85,7 @@ static void configure_current_thread_affinity(
     {
         if (0 == SetThreadAffinityMask(GetCurrentThread(), static_cast<DWORD_PTR>(affinity_mask)))
         {
-            EPROSIMA_LOG_ERROR(SYSTEM,
+            THREAD_EPROSIMA_LOG_ERROR(thread_name,
                     "Problem to set affinity of thread with id [" << GetCurrentThreadId() << "," << thread_name << "] to value " << affinity_mask <<
                     ". Error '" << GetLastError() << "'");
         }

test/unittest/logging/LogTests.cpp

@@ -695,6 +695,24 @@ TEST_F(LogTests, thread_config)
     EXPECT_EQ(entries.size(), n_logs);
 }
 
+/**
+ * Regression test 22624: when setting thread affinity fails, eprosima log error throws another error,
+ * and calls eprosima log error. This causes a looping recursive call for eprosima log error.
+ */
+TEST_F(LogTests, thread_log_error_loop)
+{
+    // Set general verbosity
+    Log::SetVerbosity(Log::Error);
+
+    // Set thread settings
+    eprosima::fastdds::rtps::ThreadSettings thr_settings{};
+    thr_settings.affinity = 0xFFFFFFFFFFFFFFFF;
+    Log::SetThreadConfig(thr_settings);
+
+    // Start the error message
+    EPROSIMA_LOG_ERROR(SYSTEM, "Recursive error loop avoided");
+}
+
 int main(
         int argc,
         char** argv)