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

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 13092cf45d651576366942f0893f304afe959bd1
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Fri May 13 15:20:09 2022 +0200

    tlslog: add meson config setting 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

 .gitlab-ci.yml           |  3 +++
 .gitlab-ci/test-msvc.bat |  2 +-
 meson.build              |  1 +
 meson_options.txt        |  1 +
 tls/base/gtlslog.c       | 65 +++++++++++++++++++++++++-----------------------
 5 files changed, 40 insertions(+), 32 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 40aa4afc..40806c4a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -13,6 +13,7 @@ fedora-x86_64:
             -Dopenssl=enabled
             -Dlibproxy=enabled
             -Dgnome_proxy=enabled
+            -Dglib_networking_debug=true
             -Dwerror=true
             _build/
     - meson compile -C _build/
@@ -38,6 +39,7 @@ fedora-x86_64-asan:
             -Dopenssl=enabled
             -Dlibproxy=enabled
             -Dgnome_proxy=enabled
+            -Dglib_networking_debug=true
             -Dwerror=true
             _build/
     - meson compile -C _build/
@@ -54,6 +56,7 @@ fedora-x86_64-scan-build:
             -Dopenssl=enabled
             -Dlibproxy=enabled
             -Dgnome_proxy=enabled
+            -Dglib_networking_debug=true
             -Dwerror=true
             _build/
     - scan-build meson compile -C _build/
diff --git a/.gitlab-ci/test-msvc.bat b/.gitlab-ci/test-msvc.bat
index 66412b4f..26aca1c0 100644
--- a/.gitlab-ci/test-msvc.bat
+++ b/.gitlab-ci/test-msvc.bat
@@ -27,7 +27,7 @@ set PKG_CONFIG_PATH=%DEPS_DIR%\lib\pkgconfig
 
 :: FIXME: make warnings fatal
 pip3 install --upgrade --user meson==0.60.0  || goto :error
-meson build -Dgnutls=disabled -Dopenssl=enabled || goto :error
+meson build -Dgnutls=disabled -Dopenssl=enabled -Dglib_networking_debug=true || goto :error
 ninja -C build || goto :error
 
 meson test -C build --timeout-multiplier=10 || goto :error
diff --git a/meson.build b/meson.build
index 5335d890..9b335345 100644
--- a/meson.build
+++ b/meson.build
@@ -21,6 +21,7 @@ host_system = host_machine.system()
 config_h = configuration_data()
 
 config_h.set_quoted('GETTEXT_PACKAGE', meson.project_name())
+config_h.set10('GLIB_NETWORKING_ENABLE_DEBUG_LOGS', get_option('glib_networking_debug'))
 
 # compiler flags
 common_flags = [
diff --git a/meson_options.txt b/meson_options.txt
index aaf62274..04fe98fb 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -7,3 +7,4 @@ option('libproxy', type: 'feature', value: 'auto', description: 'support for lib
 option('gnome_proxy', type: 'feature', value: 'auto', description: 'support for GNOME desktop proxy 
configuration')
 option('installed_tests', type: 'boolean', value: false, description: 'enable installed tests')
 option('static_modules', type: 'boolean', value: false, description: 'build static modules')
+option('glib_networking_debug', type: 'boolean', value: false, description: 'enable debug messages')
diff --git a/tls/base/gtlslog.c b/tls/base/gtlslog.c
index cf3ab054..3921b3cd 100644
--- a/tls/base/gtlslog.c
+++ b/tls/base/gtlslog.c
@@ -39,40 +39,43 @@ 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 || GLIB_NETWORKING_ENABLE_DEBUG_LOGS)
+    {
+      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);
+    }
 }