[WIP] Changes the memory allocator to use jemalloc to address memory leak issues

debian/control

@@ -21,6 +21,7 @@ Build-Depends:
  libgsf-1-dev,
  libgtk-3-dev (>= 3.10),
  libgtk-3-doc,
+ libjemalloc2-dev,
  libjson-glib-dev (>= 1.6),
  libpango1.0-dev,
  libx11-dev,
@@ -88,6 +89,7 @@ Depends:
  gsettings-desktop-schemas,
  gvfs (>= 1.3.2),
  libglib2.0-data,
+ libjemalloc2,
  libnemo-extension1 (= ${binary:Version}),
  nemo-data (= ${source:Version}),
  shared-mime-info (>= 0.50),

meson.build

@@ -83,6 +83,18 @@ gail    = dependency('gail-3.0')
 x11     = dependency('x11')
 xapp    = dependency('xapp',                        version: '>=2.0.0')
 
+jemalloc_opt = get_option('jemalloc')
+if jemalloc_opt == 'true'
+  jemalloc = dependency('jemalloc', required: true)
+  use_jemalloc = true
+elif jemalloc_opt == 'auto'
+  jemalloc = dependency('jemalloc', required: false)
+  use_jemalloc = jemalloc.found()
+else
+  jemalloc = dependency('', required: false)
+  use_jemalloc = false
+endif
+
 # Facultative dependencies
 
 trackerChoice = get_option('tracker')
@@ -171,8 +183,11 @@ nemo_definitions =  [
   '-DNEMO_DATADIR="@0@"'.format(nemoDataPath),
   '-DNEMO_EXTENSIONDIR="@0@"'.format(nemoExtensionPath),
   '-DLIBEXECDIR="@0@"'.format(libExecPath),
-  '-DG_LOG_DOMAIN="Nemo"'
+  '-DG_LOG_DOMAIN="Nemo"',
 ]
+if use_jemalloc
+  nemo_definitions += '-DUSE_JEMALLOC'
+endif
 
 po_subdir = join_paths(meson.project_source_root(), 'po')
 
@@ -201,6 +216,7 @@ message('\n'.join(['',
 '    exempi  support:        @0@'.format(exempi_enabled),
 '    Tracker support:        @0@'.format(tracker_enabled),
 '    Wayland support:        @0@'.format(cc.has_header('gdk/gdkwayland.h', dependencies: gtk)),
+'    Jemalloc support:       @0@'.format(use_jemalloc),
 '',
 '    nemo-extension documentation: @0@'.format(gtkdoc_enabled),
 '    nemo-extension introspection: @0@'.format(true),

meson_options.txt

@@ -12,3 +12,5 @@ option('empty_view', type : 'boolean', value : false,
        description: 'Enable empty view')
 option('tracker',type : 'combo', choices : ['true', 'false', 'auto'], value : 'false',
        description: 'Tracker support')
+option('jemalloc', type : 'combo', choices : ['true', 'false', 'auto'], value : 'auto',
+       description: 'Use jemalloc memory allocator if available (auto = enable if found)')

src/meson.build

@@ -104,6 +104,9 @@ endif
 
 nemo_deps = [ cinnamon, gail, glib, gtk, math,
   egg, nemo_extension, nemo_private, xapp ]
+if use_jemalloc
+  nemo_deps += jemalloc
+endif
 
 if exempi_enabled
   nemo_deps += exempi
@@ -113,27 +116,45 @@ if libexif_enabled
   nemo_deps += libexif
 endif
 
+
+nemo_link_args = []
+if use_jemalloc
+  nemo_link_args += ['-Wl,--no-as-needed', '-ljemalloc', '-Wl,--as-needed']
+endif
 nemo = executable('nemo',
   nemoCommon_sources + nemoWindow_sources,
   include_directories: [ rootInclude ],
   c_args: nemo_definitions,
   dependencies: nemo_deps,
+  link_args: nemo_link_args,
   install: true
 )
 
+
+nemoDesktop_link_args = []
+if use_jemalloc
+  nemoDesktop_link_args += ['-Wl,--no-as-needed', '-ljemalloc', '-Wl,--as-needed']
+endif
 nemoDesktop = executable('nemo-desktop',
   nemoCommon_sources + nemoDesktop_sources,
   include_directories: [ rootInclude],
   c_args: nemo_definitions,
   dependencies: nemo_deps,
+  link_args: nemoDesktop_link_args,
   install: true
 )
 
+
+nemo_autorun_software_link_args = []
+if use_jemalloc
+  nemo_autorun_software_link_args += ['-Wl,--no-as-needed', '-ljemalloc', '-Wl,--as-needed']
+endif
 nemo_autorun_software = executable('nemo-autorun-software',
   [ 'nemo-autorun-software.c' ],
   include_directories: [ rootInclude, ],
   c_args: nemo_definitions,
   dependencies: nemo_deps,
+  link_args: nemo_autorun_software_link_args,
   install: true
 )
 

src/nemo-main.c

@@ -53,6 +53,20 @@
 #include <exempi/xmp.h>
 #endif
 
+#ifdef USE_JEMALLOC
+	static void
+	nemo_jemalloc_configure(void) __attribute__((constructor));
+
+	static void
+	nemo_jemalloc_configure(void)
+	{
+		if (getenv("MALLOC_CONF") != NULL)
+			return;
+		const char *conf = "narenas:1,metadata_thp:auto,percpu_arena:phycpu";
+		setenv("MALLOC_CONF", conf, 0);
+	}
+#endif
+
 int
 main (int argc, char *argv[])
 {