From bf6eb3eda9a5921738afc33857936112a0739a38 Mon Sep 17 00:00:00 2001
From: Christian Eggers <ceggers@arri.de>
Date: Thu, 5 Dec 2024 13:22:20 +0100
Subject: [PATCH] Added Syslog example.

---
 samples/CMakeLists.txt        |  1 +
 samples/Syslog/CMakeLists.txt |  5 ++++
 samples/Syslog/Main.cpp       | 53 +++++++++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+)
 create mode 100644 samples/Syslog/CMakeLists.txt
 create mode 100644 samples/Syslog/Main.cpp

diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index b91f628..eb50c0f 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -78,5 +78,6 @@ add_subdirectory(PrintVar)
 add_subdirectory(SetFileName)
 add_subdirectory(Shared)
 add_subdirectory(SkipNativeEOL)
+add_subdirectory(Syslog)
 add_subdirectory(UtcTime)
 add_subdirectory(Utf8Everywhere)
diff --git a/samples/Syslog/CMakeLists.txt b/samples/Syslog/CMakeLists.txt
new file mode 100644
index 0000000..f77fdc8
--- /dev/null
+++ b/samples/Syslog/CMakeLists.txt
@@ -0,0 +1,5 @@
+if(UNIX)
+    add_executable(Syslog Main.cpp)
+    target_link_libraries(Syslog plog)
+    set_target_properties(Syslog PROPERTIES FOLDER Samples)
+endif()
diff --git a/samples/Syslog/Main.cpp b/samples/Syslog/Main.cpp
new file mode 100644
index 0000000..c4aff95
--- /dev/null
+++ b/samples/Syslog/Main.cpp
@@ -0,0 +1,53 @@
+//
+// Syslog - shows how to use the syslog appender/formatter.
+// For the mappings between plog and syslog severities, refer to SyslogAppender
+//
+
+#include <plog/Log.h>
+#include <plog/Init.h>
+#include <plog/Formatters/SyslogFormatter.h>
+#include <plog/Appenders/SyslogAppender.h>
+#if __cplusplus >= 201103L
+#include <thread>
+#endif
+
+static void log_messages()
+{
+    PLOG_VERBOSE << "This is a VERBOSE message";
+    PLOG_DEBUG << "This is a DEBUG message";
+    PLOG_INFO << "This is an INFO message";
+    PLOG_WARNING << "This is a WARNING message";
+    PLOG_ERROR << "This is an ERROR message";
+    PLOG_FATAL << "This is a FATAL message";
+}
+
+int main()
+{
+    static plog::SyslogAppender<plog::SyslogFormatter> syslogAppender;
+    plog::init(plog::verbose, &syslogAppender);
+
+    // Calling openlog() is optional. If omitted, the application name is
+    // used (depends on the used C library) and the PID is not included.
+    openlog("MyApp", LOG_PID, LOG_USER);
+
+    // optional: log only messages up to PLOG_INFO (maps to LOG_NOTICE)
+    setlogmask(LOG_UPTO(LOG_NOTICE));
+
+#if __cplusplus >= 201103L
+    // optional: start a 2nd thread which also generates log messages
+    // you'll get the same PID but different TID values in the syslog file
+    std::thread myThread(log_messages);
+#endif
+
+    log_messages();
+
+#if __cplusplus >= 201103L
+    // wait until the 2nd thread has finished
+    myThread.join();
+#endif
+
+    // Calling closelog() is optional
+    closelog();
+
+    return 0;
+}