tools: Keymap compiler server

meson.build

@@ -151,6 +151,12 @@ if not cc.has_header_symbol('limits.h', 'PATH_MAX', prefix: system_ext_define)
         configh_data.set('PATH_MAX', 4096)
     endif
 endif
+if cc.get_argument_syntax() == 'msvc'
+    add_project_arguments(
+        cc.get_supported_arguments(['/experimental:c11atomics']),
+        language: 'c'
+    )
+endif
 
 # Silence some security & deprecation warnings on MSVC
 # for some unix/C functions we use.
@@ -512,6 +518,17 @@ if build_tools
                c_args: ['-DENABLE_PRIVATE_APIS'],
                include_directories: [include_directories('src', 'include')],
                install: false)
+    thread_dep = dependency('threads', required: false)
+    if thread_dep.found() and cc.has_header('sys/un.h')
+        # Similar to previous tool, but for batch processing using a server
+        executable('compile-keymap-server',
+                   'tools/compile-keymap-server.c',
+                   libxkbcommon_sources,
+                   dependencies: [tools_dep, thread_dep],
+                   c_args: ['-DENABLE_KEYMAP_SOCKET'],
+                   include_directories: [include_directories('src', 'include')],
+                   install: false)
+    endif
 
     # Tool: compose
     executable('xkbcli-compile-compose',

src/context.c

@@ -313,7 +313,12 @@ xkb_context_new(enum xkb_context_flags flags)
         return NULL;
     }
 
+#ifdef ENABLE_KEYMAP_SOCKET
+    /* NOTE: Size should be adusted to deal with xkeyboard-config database */
+    ctx->atom_table = atom_table_new(14);
+#else
     ctx->atom_table = atom_table_new();
+#endif
     if (!ctx->atom_table) {
         xkb_context_unref(ctx);
         return NULL;

src/context.h

@@ -31,6 +31,7 @@
 #include "xkbcommon/xkbcommon.h"
 #include "atom.h"
 #include "messages-codes.h"
+#include "src/utils.h"
 
 struct xkb_context {
     atomic_int refcnt;