[glib-networking/nacho/logging-define] tlslog: add a define to log at debug level

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 1508e0ead4e1e1a7d4f52060020d16e68796347b
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Fri May 13 15:20:09 2022 +0200

    tlslog: add a define to log at debug level
    
    Otherwise this becomes expensive when doing lots of read/writes
    and endups consuming quite a bit of CPU.
    
    Partially fixes #188

 tls/base/gtlslog.c | 68 +++++++++++++++++++++++++++++-------------------------
 1 file changed, 37 insertions(+), 31 deletions(-)
---
diff --git a/tls/base/gtlslog.c b/tls/base/gtlslog.c
index cf3ab054..c67d4b7d 100644
--- a/tls/base/gtlslog.c
+++ b/tls/base/gtlslog.c
@@ -31,6 +31,9 @@
 
 #include "gtlslog.h"
 
+// Change this define to 1 if you want to enable debug logs
+#define ENABLE_DEBUG_LOGGING 0
+
 void g_tls_log (GLogLevelFlags  level,
                 gpointer        conn,
                 const gchar    *file,
@@ -39,40 +42,43 @@ void g_tls_log (GLogLevelFlags  level,
                 const gchar    *format,
                 ...)
 {
-  gchar *header = NULL;
-  gchar *message = NULL;
-  gchar *thread = NULL;
-  va_list args;
-  int ret;
+  if ((level & G_LOG_LEVEL_MASK) < G_LOG_LEVEL_DEBUG || ENABLE_DEBUG_LOGGING)
+    {
+      gchar *header = NULL;
+      gchar *message = NULL;
+      gchar *thread = NULL;
+      va_list args;
+      int ret;
 
-  va_start (args, format);
-  ret = g_vasprintf (&message, format, args);
-  va_end (args);
+      va_start (args, format);
+      ret = g_vasprintf (&message, format, args);
+      va_end (args);
 
-  if (ret <= 0)
-    goto out;
+      if (ret <= 0)
+        goto out;
 
-  if (conn && G_IS_TLS_CONNECTION (conn)) {
-    if (G_IS_TLS_CLIENT_CONNECTION (conn))
-      header = g_strdup_printf ("CLIENT[%p]: ", conn);
-    else if (G_IS_TLS_SERVER_CONNECTION (conn))
-      header = g_strdup_printf ("SERVER[%p]: ", conn);
-    else
-      g_assert_not_reached ();
-  } else {
-    header = g_strdup ("");
-  }
+      if (conn && G_IS_TLS_CONNECTION (conn)) {
+        if (G_IS_TLS_CLIENT_CONNECTION (conn))
+          header = g_strdup_printf ("CLIENT[%p]: ", conn);
+        else if (G_IS_TLS_SERVER_CONNECTION (conn))
+          header = g_strdup_printf ("SERVER[%p]: ", conn);
+        else
+          g_assert_not_reached ();
+      } else {
+        header = g_strdup ("");
+      }
 
-  thread = g_strdup_printf ("%p", g_thread_self ());
-  g_log_structured (G_LOG_DOMAIN, level,
-                    "GLIB_NET_THREAD", thread,
-                    "CODE_FILE", file,
-                    "CODE_LINE", line,
-                    "CODE_FUNC", func,
-                    "MESSAGE", "%s%s", header, message);
+      thread = g_strdup_printf ("%p", g_thread_self ());
+      g_log_structured (G_LOG_DOMAIN, level,
+                        "GLIB_NET_THREAD", thread,
+                        "CODE_FILE", file,
+                        "CODE_LINE", line,
+                        "CODE_FUNC", func,
+                        "MESSAGE", "%s%s", header, message);
 
-out:
-  g_free (header);
-  g_free (message);
-  g_free (thread);
+    out:
+      g_free (header);
+      g_free (message);
+      g_free (thread);
+    }
 }