Move AFBClient to client-lib/

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>

1 files changed, 0 insertions, 461 deletions

diff --git a/AFBClient.cpp b/AFBClient.cpp
deleted file mode 100644
index 1677509..0000000
--- a/AFBClient.cpp
+++ /dev/null
@@ -1,461 +0,0 @@
-#include "AFBClient.h"
-
-#include <cassert>
-#include <cctype>
-#include <cerrno>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-
-#include <atomic>
-#include <map>
-#include <mutex>
-#include <set>
-
-#include <unistd.h>
-
-#include <systemd/sd-event.h>
-
-#include <json-c/json.h>
-
-extern "C" {
-#include <afb/afb-ws-client.h>
-#include <afb/afb-wsj1.h>
-}
-
-#define UNUSED(x) (void)(x)
-
-//       _                 ___                 _
-//   ___| | __ _ ___ ___  |_ _|_ __ ___  _ __ | |
-//  / __| |/ _` / __/ __|  | || '_ ` _ \| '_ \| |
-// | (__| | (_| \__ \__ \  | || | | | | | |_) | |
-//  \___|_|\__,_|___/___/ |___|_| |_| |_| .__/|_|
-//                                      |_|
-class AFBClient::Impl {
-    friend class AFBClient;
-
-    // This is the AFBClient interface impl
-    int init(int port, char const *token);
-    int dispatch();
-
-    // 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;
-
-    int api_call(const char *verb, json_object *object,
-                 const std::function<void(bool, json_object *)> &onReply);
-    void dispatch_internal();
-
-public:
-    void event(char const *et, char const *label);
-};
-
-namespace {
-
-constexpr const int token_maxlen = 20;
-constexpr const char *const wmAPI = "winman";
-
-#ifdef NDEBUG
-#define TRACE()
-#define TRACEN(N)
-#else
-#define CONCAT_(X, Y) X##Y
-#define CONCAT(X, Y) CONCAT_(X, Y)
-
-#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();
-    reinterpret_cast<AFBClient::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
-
-//       _                 ___                 _   _                 _
-//   ___| | __ _ ___ ___  |_ _|_ __ ___  _ __ | | (_)_ __ ___  _ __ | |
-//  / __| |/ _` / __/ __|  | || '_ ` _ \| '_ \| | | | '_ ` _ \| '_ \| |
-// | (__| | (_| \__ \__ \  | || | | | | | |_) | | | | | | | | | |_) | |
-//  \___|_|\__,_|___/___/ |___|_| |_| |_| .__/|_| |_|_| |_| |_| .__/|_|
-//                                      |_|                   |_|
-AFBClient::Impl::Impl() : wsj1{}, loop{}, labels(), handlers() { TRACE(); }
-
-AFBClient::Impl::~Impl() {
-    TRACE();
-    afb_wsj1_unref(wsj1);
-    sd_event_unref(loop);
-}
-
-int AFBClient::Impl::init(int port, char const *token) {
-    TRACE();
-    char *uribuf = nullptr;
-    int rc = -1;
-
-    if (this->loop != nullptr && this->wsj1 != nullptr) {
-        fputs("AFBClient instance is already initialized!\n", stderr);
-        rc = -EALREADY;
-        goto fail;
-    }
-
-    if ((token == nullptr) || strlen(token) > token_maxlen) {
-        fputs("Token is invalid\n", stderr);
-        rc = -EINVAL;
-        goto fail;
-    }
-
-    for (char const *p = token; *p != 0; p++) {
-        if (isalnum(*p) == 0) {
-            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;
-    }
-
-    return 0;
-
-fail:
-    return rc;
-}
-
-int AFBClient::Impl::dispatch() {
-    std::lock_guard<std::recursive_mutex> guard(dispatch_mutex);
-    return sd_event_run(this->loop, 1);
-}
-
-int AFBClient::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("request_surface", 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 AFBClient::Impl::activateSurface(const char *label) {
-    TRACE();
-    json_object *j = drawing_name_json_argument(label);
-    return this->api_call("activate_surface", 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 AFBClient::Impl::deactivateSurface(const char *label) {
-    TRACE();
-    json_object *j = drawing_name_json_argument(label);
-    return this->api_call("deactivate_surface", 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 AFBClient::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 AFBClient::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, AFBClient::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, AFBClient::EventType>( \
-                true, CONCAT(AFBClient::Event_, A));      \
-    } while (false)
-
-    ET("activated", Active);
-    ET("deactivated", Inactive);
-    ET("visible", Visible);
-    ET("invisible", Invisible);
-    ET("syncdraw", SyncDraw);
-    ET("flushdraw", FlushDraw);
-#undef ET
-
-    return std::pair<bool, AFBClient::EventType>(false,
-                                                 AFBClient::Event_Active);
-}
-}  // namespace
-
-/// object will be json_object_put
-int AFBClient::Impl::api_call(
-    const char *verb, json_object *object,
-    const std::function<void(bool, json_object *)> &onReply) {
-    TRACE();
-
-    // 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
-    int 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 (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);
-    } else {
-        // We need to dispatch 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)) {
-            std::lock_guard<std::recursive_mutex> guard(dispatch_mutex);
-            if (!returned.load(std::memory_order_consume)) {
-                this->dispatch_internal();
-            }
-        }
-
-        // return the actual API call result
-        rc = call_rc;
-    }
-
-    return rc;
-}
-
-void AFBClient::Impl::dispatch_internal() {
-    std::lock_guard<std::recursive_mutex> guard(dispatch_mutex);
-    TRACE();
-    sd_event_run(this->loop, -1);
-}
-
-void AFBClient::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);
-        }
-    }
-}
-
-//       _                    _    _____ ____   ____ _ _            _
-//   ___| | __ _ ___ ___     / \  |  ___| __ ) / ___| (_) ___ _ __ | |_
-//  / __| |/ _` / __/ __|   / _ \ | |_  |  _ \| |   | | |/ _ \ '_ \| __|
-// | (__| | (_| \__ \__ \  / ___ \|  _| | |_) | |___| | |  __/ | | | |_
-//  \___|_|\__,_|___/___/ /_/   \_\_|   |____/ \____|_|_|\___|_| |_|\__|
-//
-int AFBClient::init(int port, char const *token) {
-    return this->d->init(port, token);
-}
-
-int AFBClient::dispatch() { return this->d->dispatch(); }
-
-int AFBClient::requestSurface(const char *label) {
-    return this->d->requestSurface(label);
-}
-
-int AFBClient::activateSurface(const char *label) {
-    return this->d->activateSurface(label);
-}
-
-int AFBClient::deactivateSurface(const char *label) {
-    return this->d->deactivateSurface(label);
-}
-
-int AFBClient::endDraw(const char *label) { return this->d->endDraw(label); }
-
-void AFBClient::set_event_handler(enum EventType et,
-                                  std::function<void(char const *label)> f) {
-    return this->d->set_event_handler(et, std::move(f));
-}
-
-AFBClient &AFBClient::instance() {
-    TRACE();
-    static AFBClient obj;
-    return obj;
-}
-
-AFBClient::AFBClient() : d(new Impl) {}
-
-AFBClient::~AFBClient() { delete d; }