targets: Add and change targets to support service process

src/xrt/targets/CMakeLists.txt

@@ -17,3 +17,7 @@ add_subdirectory(cli)
 if(BUILD_TARGET_GUI)
 	add_subdirectory(gui)
 endif()
+
+if(XRT_BUILD_IPC)
+	add_subdirectory(service)
+endif()

src/xrt/targets/meson.build

@@ -61,3 +61,5 @@ subdir('cli')
 if sdl2.found()
 	subdir('gui')
 endif
+
+subdir('service')

src/xrt/targets/openxr/CMakeLists.txt

@@ -39,14 +39,22 @@ if(BUILD_WITH_SDL2)
 	target_link_libraries(${RUNTIME_TARGET} PUBLIC st_gui imgui_impl_sdl)
 endif()
 
-target_link_libraries(${RUNTIME_TARGET} PUBLIC
-	st_oxr
-	st_prober
-	target_lists
-	target_instance
-	comp_main
-	comp_client
-	)
+if(XRT_BUILD_IPC)
+	target_link_libraries(${RUNTIME_TARGET} PUBLIC
+		st_oxr
+		ipc_client
+		comp_client
+		)
+else()
+	target_link_libraries(${RUNTIME_TARGET} PUBLIC
+		st_oxr
+		st_prober
+		target_lists
+		target_instance
+		comp_main
+		comp_client
+		)
+endif()
 
 if(NOT MSVC)
 	# Force the main "negotiate" symbol's inclusion

src/xrt/targets/openxr/meson.build

@@ -78,11 +78,9 @@ openxr = library(
 		lib_aux_util,
 		lib_aux_math,
 		lib_comp,
+		lib_ipc_client,
 		lib_st_oxr,
-		lib_st_prober,
-		lib_target_lists,
-		lib_target_instance,
-	] + driver_libs + hack_libs,
+	] + hack_libs,
 	include_directories: [
 		openxr_include,
 		st_include, # Sigh debian meson requires this.

src/xrt/targets/openxr/target.c

@@ -6,6 +6,23 @@
  * @author Jakob Bornecrantz <jakob@collabora.com>
  */
 
+#include "xrt/xrt_config_build.h"
+
+#ifdef XRT_BUILD_IPC
+
+struct xrt_instance;
+
+int
+ipc_instance_create(struct xrt_instance **out_xinst);
+
+int
+xrt_instance_create(struct xrt_instance **out_xinst)
+{
+	return ipc_instance_create(out_xinst);
+}
+
+#else
+
 #include "target_lists.h"
 
 int
@@ -13,3 +30,5 @@ xrt_prober_create(struct xrt_prober **out_xp)
 {
 	return xrt_prober_create_with_lists(out_xp, &target_lists);
 }
+
+#endif

src/xrt/targets/service/CMakeLists.txt

@@ -0,0 +1,20 @@
+# Copyright 2020, Collabora, Ltd.
+# SPDX-License-Identifier: BSL-1.0
+
+
+add_executable(monado-service
+	main.c
+	)
+
+target_link_libraries(monado-service PRIVATE
+	aux_util
+	st_prober
+	ipc_server
+	comp_main
+	target_lists
+	target_instance
+	)
+
+install(TARGETS monado-service
+	RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+	)

src/xrt/targets/service/main.c

@@ -0,0 +1,28 @@
+// Copyright 2020, Collabora, Ltd.
+// SPDX-License-Identifier: BSL-1.0
+/*!
+ * @file
+ * @brief  Main file for Monado service.
+ * @author Pete Black <pblack@collabora.com>
+ * @author Jakob Bornecrantz <jakob@collabora.com>
+ * @ingroup ipc
+ */
+
+
+#include "target_lists.h"
+
+int
+ipc_server_main(int argc, char *argv[]);
+
+
+int
+main(int argc, char *argv[])
+{
+	return ipc_server_main(argc, argv);
+}
+
+int
+xrt_prober_create(struct xrt_prober **out_xp)
+{
+	return xrt_prober_create_with_lists(out_xp, &target_lists);
+}

src/xrt/targets/service/meson.build

@@ -0,0 +1,21 @@
+# Copyright 2020, Collabora, Ltd.
+# SPDX-License-Identifier: BSL-1.0
+
+service = executable(
+	'monado-service',
+	['main.c'],
+	link_whole: [
+		lib_st_prober,
+		lib_ipc_server,
+		lib_comp,
+		lib_target_lists,
+		lib_target_instance,
+		lib_aux_util,
+	] + driver_libs,
+	include_directories: [
+		aux_include,
+		common_include,
+		xrt_include,
+	],
+	dependencies: [pthreads, libjpeg],
+)