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-rw-r--r--CMakeLists.txt48
-rw-r--r--LICENSE177
-rw-r--r--src/CMakeLists.txt79
-rw-r--r--src/libwindowmanager.cpp489
-rw-r--r--src/libwindowmanager.h58
-rw-r--r--windowmanager.pc.in11
6 files changed, 862 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..8397e92
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,48 @@
+#
+# Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+cmake_minimum_required(VERSION 2.8)
+
+project(WindowManagerTMC)
+
+set(PACKAGE_VERSION_MAJOR 0)
+set(PACKAGE_VERSION_MINOR 0)
+set(PACKAGE_VERSION_REVISION 1)
+set(PACKAGE_VERSION "${PACKAGE_VERSION_MAJOR}.${PACKAGE_VERSION_MINOR}.${PACKAGE_VERSION_REVISION}")
+
+find_package(PkgConfig REQUIRED)
+include(GNUInstallDirs)
+
+pkg_check_modules(WLC wayland-client>=1.11.0 REQUIRED)
+
+# Should modernize the following somehow...
+set(ENABLE_SCOPE_TRACING OFF CACHE BOOL "Enable scope enter/leave messages for certain parts of the code.")
+if(ENABLE_SCOPE_TRACING)
+ add_definitions(-DSCOPE_TRACING)
+else()
+ remove_definitions(-DSCOPE_TRACING)
+endif()
+
+set(SANITIZER_MODE "none" CACHE STRING "Build using a specific sanitizer (e.g. 'address', 'thread', 'leak', 'undefined'), depends on compiler; default none")
+
+set(LINK_LIBCXX OFF CACHE BOOL "Link against LLVMs libc++")
+
+add_subdirectory(src)
+
+configure_file(windowmanager.pc.in windowmanager.pc @ONLY)
+INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/windowmanager.pc
+ DESTINATION
+ ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f433b1a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,177 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
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+ means any form of electronic, verbal, or written communication sent
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+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
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+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
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+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
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+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
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+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
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+ notices within Derivative Works that You distribute, alongside
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+ You may add Your own copyright statement to Your modifications and
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+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 0000000..96cad55
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,79 @@
+#
+# Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+include(FindPkgConfig)
+
+pkg_check_modules(AFB REQUIRED libafbwsc)
+pkg_check_modules(SD REQUIRED libsystemd>=222)
+
+set(TARGET_LIBWM windowmanager)
+
+add_library(${TARGET_LIBWM} SHARED
+ libwindowmanager.cpp
+ libwindowmanager.h)
+
+target_include_directories(${TARGET_LIBWM}
+ PRIVATE
+ ${AFB_INCLUDE_DIRS}
+ ${SD_INCLUDE_DIRS})
+
+target_link_libraries(${TARGET_LIBWM}
+ PUBLIC
+ -lpthread
+ ${AFB_LIBRARIES}
+ ${SD_LIBRARIES})
+
+if(NOT ${CMAKE_BUILD_TYPE} STREQUAL "Release")
+ target_compile_definitions(${TARGET_LIBWM}
+ PRIVATE
+ _GLIBCXX_DEBUG)
+endif()
+
+target_compile_options(${TARGET_LIBWM}
+ PRIVATE
+ -Wall -Wextra -Wno-unused-parameter -Wno-comment)
+
+set_target_properties(${TARGET_LIBWM}
+ PROPERTIES
+ # INTERPROCEDURAL_OPTIMIZATION ON
+ CXX_EXTENSIONS OFF
+ CXX_STANDARD 14
+ CXX_STANDARD_REQUIRED ON)
+
+if (LINK_LIBCXX)
+ set_target_properties(${TARGET_LIBWM}
+ PROPERTIES
+ LINK_FLAGS "-lc++")
+endif()
+
+if (NOT ${SANITIZER_MODE} STREQUAL "none" AND NOT ${SANITIZER_MODE} STREQUAL "")
+ target_compile_options(${TARGET_LIBWM}
+ PRIVATE
+ -fsanitize=${SANITIZER_MODE} -g -fno-omit-frame-pointer)
+ set_target_properties(${TARGET_LIBWM}
+ PROPERTIES
+ LINK_FLAGS "-fsanitize=${SANITIZER_MODE} -g")
+endif()
+
+install(
+ TARGETS ${TARGET_LIBWM}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ COMPONENT "runtime")
+
+install(
+ FILES libwindowmanager.h
+ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+ COMPONENT "development")
diff --git a/src/libwindowmanager.cpp b/src/libwindowmanager.cpp
new file mode 100644
index 0000000..263dd57
--- /dev/null
+++ b/src/libwindowmanager.cpp
@@ -0,0 +1,489 @@
+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "libwindowmanager.h"
+
+#include <cassert>
+#include <cctype>
+#include <cerrno>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include <atomic>
+#include <map>
+#include <mutex>
+#include <set>
+#include <queue>
+
+#include <unistd.h>
+
+#include <systemd/sd-event.h>
+
+#include <json-c/json.h>
+#include <pthread.h>
+
+extern "C" {
+#include <afb/afb-ws-client.h>
+#include <afb/afb-wsj1.h>
+}
+
+#define UNUSED(x) (void)(x)
+
+/**
+ * @class LibWindowmanager::Impl
+ */
+class LibWindowmanager::Impl {
+ friend class LibWindowmanager;
+
+ // This is the LibWindowmanager interface impl
+ int init(int port, char const *token);
+
+ // WM API
+ int requestSurface(const char *label);
+ int activateSurface(const char *label);
+ int deactivateSurface(const char *label);
+ int endDraw(const char *label);
+
+ void set_event_handler(enum EventType et, handler_fun func);
+
+ Impl();
+ ~Impl();
+
+ struct afb_wsj1 *wsj1;
+ struct sd_event *loop;
+
+ std::set<std::string> labels;
+ std::map<EventType, handler_fun> handlers;
+ std::queue<std::pair<handler_fun, std::string>> handler_queue;
+
+ int api_call(const char *verb, json_object *object,
+ const std::function<void(bool, json_object *)> &onReply);
+
+public:
+ void event(char const *et, char const *label);
+private:
+ int runEventLoop();
+};
+
+namespace {
+
+constexpr const int token_maxlen = 20;
+constexpr const char *const wmAPI = "windowmanager";
+
+#define CONCAT_(X, Y) X##Y
+#define CONCAT(X, Y) CONCAT_(X, Y)
+
+#ifndef SCOPE_TRACING
+#define TRACE()
+#define TRACEN(N)
+#else
+#define TRACE() \
+ ScopeTrace __attribute__((unused)) CONCAT(trace_scope_, __LINE__)(__func__)
+#define TRACEN(N) \
+ ScopeTrace __attribute__((unused)) CONCAT(named_trace_scope_, __LINE__)(#N)
+
+struct ScopeTrace {
+ thread_local static int indent;
+ char const *f{};
+ explicit ScopeTrace(char const *func) : f(func) {
+ fprintf(stderr, "%*s%s -->\n", 2 * indent++, "", this->f);
+ }
+ ~ScopeTrace() { fprintf(stderr, "%*s%s <--\n", 2 * --indent, "", this->f); }
+};
+thread_local int ScopeTrace::indent = 0;
+#endif
+
+/* called when wsj1 receives a method invocation */
+void onCall(void *closure, const char *api, const char *verb,
+ struct afb_wsj1_msg *msg) {
+ TRACE();
+ UNUSED(closure);
+ UNUSED(verb);
+ UNUSED(api);
+ UNUSED(msg);
+}
+
+/* called when wsj1 receives an event */
+void onEvent(void *closure, const char *event, afb_wsj1_msg *msg) {
+ TRACE();
+
+ // check API name in event
+ if (0 != strncmp(wmAPI, event, strlen(wmAPI))) {
+ return;
+ }
+
+ reinterpret_cast<LibWindowmanager::Impl *>(closure)->event(
+ event, json_object_get_string(
+ json_object_object_get(afb_wsj1_msg_object_j(msg), "data")));
+}
+
+/* called when wsj1 hangsup */
+void onHangup(void *closure, afb_wsj1 *wsj1) {
+ TRACE();
+ UNUSED(closure);
+ UNUSED(wsj1);
+ fputs("Hangup, the WindowManager vanished\n", stderr);
+ exit(1); // XXX: there should be something ... *better* here.
+}
+
+constexpr struct afb_wsj1_itf itf = {
+ onHangup, onCall, onEvent,
+};
+
+// XXX: I am not sure this is the right thing to do though...
+std::recursive_mutex dispatch_mutex;
+
+json_object *drawing_name_json_argument(char const *label) {
+ json_object *j = json_object_new_object();
+ json_object_object_add(j, "drawing_name", json_object_new_string(label));
+ return j;
+}
+
+} // namespace
+
+/**
+ * @class LibWindowmanager::Impl::Impl
+ */
+LibWindowmanager::Impl::Impl() : wsj1{}, loop{}, labels(), handlers() { TRACE(); }
+
+LibWindowmanager::Impl::~Impl() {
+ TRACE();
+ afb_wsj1_unref(wsj1);
+ sd_event_unref(loop);
+}
+
+int LibWindowmanager::Impl::init(int port, char const *token) {
+ TRACE();
+ char *uribuf = nullptr;
+ int rc = -1;
+
+ if (this->loop != nullptr && this->wsj1 != nullptr) {
+ fputs("LibWindowmanager instance is already initialized!\n", stderr);
+ rc = -EALREADY;
+ goto fail;
+ }
+
+ if (token == nullptr) {
+ fputs("Token is invalid\n", stderr);
+ rc = -EINVAL;
+ goto fail;
+ }
+
+ if (port < 1 || port > 0xffff) {
+ fputs("Port is invalid\n", stderr);
+ rc = -EINVAL;
+ goto fail;
+ }
+
+ /* get the default event loop */
+ rc = sd_event_default(&this->loop);
+ if (rc < 0) {
+ fprintf(stderr, "Connection to default event loop failed: %s\n",
+ strerror(-rc));
+ goto fail;
+ }
+
+ asprintf(&uribuf, "ws://localhost:%d/api?token=%s", port, token);
+
+ /* connect the websocket wsj1 to the uri given by the first argument */
+ this->wsj1 = afb_ws_client_connect_wsj1(
+ this->loop, uribuf, const_cast<struct afb_wsj1_itf *>(&itf), this);
+ if (this->wsj1 == nullptr) {
+ sd_event_unref(this->loop);
+ this->loop = nullptr;
+ fprintf(stderr, "Connection to %s failed: %m\n", uribuf);
+ rc = -errno;
+ goto fail;
+ }
+
+ this->runEventLoop();
+
+ return 0;
+
+fail:
+ return rc;
+}
+
+int LibWindowmanager::Impl::requestSurface(const char *label) {
+ TRACE();
+
+ if (this->labels.find(label) != this->labels.end()) {
+ fputs("Surface label already known!\n", stderr);
+ return -EINVAL;
+ }
+
+ json_object *j = drawing_name_json_argument(label);
+
+ int rc = -1;
+ /* send the request */
+ int rc2 =
+ this->api_call("RequestSurface", j, [&rc](bool ok, json_object *j) {
+ if (ok) {
+ int id =
+ json_object_get_int(json_object_object_get(j, "response"));
+ char *buf;
+ asprintf(&buf, "%d", id);
+ printf("setenv(\"QT_IVI_SURFACE_ID\", %s, 1)\n", buf);
+ if (setenv("QT_IVI_SURFACE_ID", buf, 1) != 0) {
+ fprintf(stderr, "putenv failed: %m\n");
+ rc = -errno;
+ } else {
+ rc = 0; // Single point of success
+ }
+ } else {
+ fprintf(stderr, "Could not get surface ID from WM: %s\n",
+ j != nullptr ? json_object_to_json_string_ext(
+ j, JSON_C_TO_STRING_PRETTY)
+ : "no-info");
+ rc = -EINVAL;
+ }
+ });
+
+ if (rc2 < 0) {
+ rc = rc2;
+ }
+
+ if (rc >= 0) {
+ this->labels.insert(this->labels.end(), label);
+ }
+
+ return rc;
+}
+
+int LibWindowmanager::Impl::activateSurface(const char *label) {
+ TRACE();
+ json_object *j = drawing_name_json_argument(label);
+ return this->api_call("ActivateSurface", j, [](bool ok, json_object *j) {
+ if (!ok) {
+ fprintf(stderr, "API Call activate_surface() failed: %s\n",
+ j != nullptr ? json_object_to_json_string_ext(
+ j, JSON_C_TO_STRING_PRETTY)
+ : "no-info");
+ }
+ });
+}
+
+int LibWindowmanager::Impl::deactivateSurface(const char *label) {
+ TRACE();
+ json_object *j = drawing_name_json_argument(label);
+ return this->api_call("DeactivateSurface", j, [](bool ok, json_object *j) {
+ if (!ok) {
+ fprintf(stderr, "API Call deactivate_surface() failed: %s\n",
+ j != nullptr ? json_object_to_json_string_ext(
+ j, JSON_C_TO_STRING_PRETTY)
+ : "no-info");
+ }
+ });
+}
+
+int LibWindowmanager::Impl::endDraw(const char *label) {
+ TRACE();
+ json_object *j = drawing_name_json_argument(label);
+ return this->api_call("EndDraw", j, [](bool ok, json_object *j) {
+ if (!ok) {
+ fprintf(stderr, "API Call endDraw() failed: %s\n",
+ j != nullptr ? json_object_to_json_string_ext(
+ j, JSON_C_TO_STRING_PRETTY)
+ : "no-info");
+ }
+ });
+}
+
+void LibWindowmanager::Impl::set_event_handler(
+ enum EventType et, std::function<void(char const *)> func) {
+ TRACE();
+
+ if (et >= 1 && et <= 6) { // Yeah ... just go with it!
+ this->handlers[et] = std::move(func);
+ }
+}
+
+namespace {
+std::pair<bool, LibWindowmanager::EventType> make_event_type(char const *et) {
+ // Event have the form "$API/$EVENT", just try to find the first / and
+ // get on with it.
+ char const *et2 = strchr(et, '/');
+ if (et2 != nullptr) {
+ et = et2 + 1;
+ }
+
+#define ET(N, A) \
+ do { \
+ if (strcasecmp(et, N) == 0) \
+ return std::pair<bool, LibWindowmanager::EventType>( \
+ true, CONCAT(LibWindowmanager::Event_, A)); \
+ } while (false)
+
+ ET("active", Active);
+ ET("inactive", Inactive);
+ ET("visible", Visible);
+ ET("invisible", Invisible);
+ ET("syncdraw", SyncDraw);
+ ET("flushdraw", FlushDraw);
+#undef ET
+
+ return std::pair<bool, LibWindowmanager::EventType>(false,
+ LibWindowmanager::Event_Active);
+}
+} // namespace
+
+static void _on_reply_static(void *closure, struct afb_wsj1_msg *msg)
+{
+ fprintf(stderr, "Call %s\n", __func__);
+}
+
+
+/// object will be json_object_put
+int LibWindowmanager::Impl::api_call(
+ const char *verb, json_object *object,
+ const std::function<void(bool, json_object *)> &onReply) {
+ TRACE();
+
+ int rc = 0;
+ if (0 == strcmp("RequestSurface", verb)) {
+ // We need to wrap the actual onReply call once in order to
+ // *look* like a normal functions pointer (std::functions<>
+ // with captures cannot convert to function pointers).
+ // Alternatively we could setup a local struct and use it as
+ // closure, but I think it is cleaner this way.
+ int call_rc = 0;
+ std::atomic<bool> returned{};
+ returned.store(false, std::memory_order_relaxed);
+ std::function<void(bool, json_object *)> wrappedOnReply =
+ [&returned, &call_rc, &onReply](bool ok, json_object *j) {
+ TRACEN(wrappedOnReply);
+ call_rc = ok ? 0 : -EINVAL;
+ // We know it failed, but there may be an explanation in the
+ // json object.
+ {
+ TRACEN(onReply);
+ onReply(ok, j);
+ }
+ returned.store(true, std::memory_order_release);
+ };
+
+ // make the actual call, use wrappedOnReply as closure
+ rc = afb_wsj1_call_j(
+ this->wsj1, wmAPI, verb, object,
+ [](void *closure, afb_wsj1_msg *msg) {
+ TRACEN(callClosure);
+ auto *onReply =
+ reinterpret_cast<std::function<void(bool, json_object *)> *>(
+ closure);
+ (*onReply)(!(afb_wsj1_msg_is_reply_ok(msg) == 0),
+ afb_wsj1_msg_object_j(msg));
+ },
+ &wrappedOnReply);
+
+ if (0 == rc) {
+ // We need to wait until "returned" got set, this is necessary
+ // if events get triggered by the call (and would be dispatched before
+ // the actual call-reply).
+ while (!returned.load(std::memory_order_consume)) {
+ sd_event_run(loop, 16);
+ }
+
+ // return the actual API call result
+ rc = call_rc;
+ }
+ }
+ else {
+ rc = afb_wsj1_call_j(this->wsj1, wmAPI, verb, object, _on_reply_static, this);
+ }
+
+ if (rc < 0) {
+ fprintf(
+ stderr, "calling %s/%s(%s) failed: %m\n", wmAPI, verb,
+ json_object_to_json_string_ext(object, JSON_C_TO_STRING_PRETTY));
+ // Call the reply handler regardless with a NULL json_object*
+ onReply(false, nullptr);
+ }
+
+ return rc;
+}
+
+void LibWindowmanager::Impl::event(char const *et, char const *label) {
+ TRACE();
+ auto oet = make_event_type(et);
+ if (!oet.first) {
+ fprintf(stderr, "Unknown event type string '%s'\n", et);
+ return;
+ }
+
+ auto i = this->handlers.find(oet.second);
+ if (i != this->handlers.end()) {
+ if (this->labels.find(label) != this->labels.end()) {
+ i->second(label);
+ }
+ }
+}
+
+static void *event_loop_run(void *args){
+ struct sd_event* loop = (struct sd_event*)(args);
+ for(;;)
+ sd_event_run(loop, 30000000);
+}
+
+int LibWindowmanager::Impl::runEventLoop() {
+ if(this->wsj1 && this->loop)
+ {
+ pthread_t thread_id;
+ int ret = pthread_create(&thread_id, NULL, event_loop_run, this->loop);
+ if(ret != 0)
+ {
+ printf("Cannot run eventloop due to error:%d", errno);
+ return -1;
+ }
+ else
+ return thread_id;
+ }
+ else
+ {
+ printf("Connecting is not established yet");
+ return -1;
+ }
+}
+
+/**
+ * @class LibWindowmanager
+ */
+int LibWindowmanager::init(int port, char const *token) {
+ return this->d->init(port, token);
+}
+
+int LibWindowmanager::requestSurface(const char *label) {
+ return this->d->requestSurface(label);
+}
+
+int LibWindowmanager::activateSurface(const char *label) {
+ return this->d->activateSurface(label);
+}
+
+int LibWindowmanager::deactivateSurface(const char *label) {
+ return this->d->deactivateSurface(label);
+}
+
+int LibWindowmanager::endDraw(const char *label) { return this->d->endDraw(label); }
+
+void LibWindowmanager::set_event_handler(enum EventType et,
+ std::function<void(char const *label)> f) {
+ return this->d->set_event_handler(et, std::move(f));
+}
+
+LibWindowmanager::LibWindowmanager() : d(new Impl) {}
+
+LibWindowmanager::~LibWindowmanager() { delete d; }
diff --git a/src/libwindowmanager.h b/src/libwindowmanager.h
new file mode 100644
index 0000000..6c13763
--- /dev/null
+++ b/src/libwindowmanager.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LIBWINDOWMANAGER_H
+#define LIBWINDOWMANAGER_H
+
+#include <functional>
+
+class LibWindowmanager {
+public:
+ LibWindowmanager();
+ ~LibWindowmanager();
+
+ LibWindowmanager(const LibWindowmanager &) = delete;
+ LibWindowmanager &operator=(const LibWindowmanager &) = delete;
+
+ using handler_fun = std::function<void(const char *)>;
+
+ enum EventType {
+ Event_Active = 1,
+ Event_Inactive,
+
+ Event_Visible,
+ Event_Invisible,
+
+ Event_SyncDraw,
+ Event_FlushDraw,
+ };
+
+ int init(int port, char const *token);
+
+ // WM API
+ int requestSurface(const char *label);
+ int activateSurface(const char *label);
+ int deactivateSurface(const char *label);
+ int endDraw(const char *label);
+
+ void set_event_handler(enum EventType et, handler_fun f);
+
+ struct Impl;
+
+private:
+ Impl *const d;
+};
+#endif // LIBWINDOWMANAGER_H
diff --git a/windowmanager.pc.in b/windowmanager.pc.in
new file mode 100644
index 0000000..2a70037
--- /dev/null
+++ b/windowmanager.pc.in
@@ -0,0 +1,11 @@
+includedir=@PROJECT_INCLUDEDIR@
+libdir=@PROJECT_LIBDIR@
+
+Name: @PROJECT_PRETTY_NAME@
+Description: @PROJECT_DESCRIPTION@
+Version: @PROJECT_VERSION@
+URL: @PROJECT_URL@
+
+Requires: json-c afb-daemon
+Cflags: -I${includedir}
+Libs: -L${libdir} -lwindowmanager