X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=AFBClient.cpp;h=eef361757aafe019df3476014c6e67db92281245;hb=f9ab62922d45a9524d9f6af269aefd1af3c2e850;hp=2d15c4f2e4ae93ca6d1617ee00d84008e803f06a;hpb=2f3a00b5f628b9db684505fc6566148cf6701d0a;p=staging%2Fwindowmanager.git diff --git a/AFBClient.cpp b/AFBClient.cpp index 2d15c4f..eef3617 100644 --- a/AFBClient.cpp +++ b/AFBClient.cpp @@ -1,273 +1,275 @@ #include "AFBClient.h" #include -#include -#include #include +#include +#include #include #include #define UNUSED(x) (void)(x) +namespace { + constexpr const int token_maxlen = 20; -const char * AFBClient::wmAPI = "winman"; +constexpr const char *const wmAPI = "winman"; + +#ifdef NDEBUG +#define TRACE() +#else +#define TRACE() \ + ScopeTrace __attribute__((unused)) trace_scope_here__(__PRETTY_FUNCTION__) + +struct ScopeTrace { + static int indent; + char const *f{}; + 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); } +}; +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); + int rc; + printf("ON-CALL %s/%s:\n%s\n", api, verb, + json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), + JSON_C_TO_STRING_PRETTY)); + fflush(stdout); + rc = afb_wsj1_reply_error_s(msg, "\"unimplemented\"", nullptr); + if (rc < 0) + fprintf(stderr, "replying failed: %m\n"); +} + +/* called when wsj1 receives an event */ +void onEvent(void *closure, const char *event, afb_wsj1_msg *msg) { + TRACE(); + UNUSED(closure); + printf("ON-EVENT %s:\n%s\n", event, + json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), + JSON_C_TO_STRING_PRETTY)); + fflush(stdout); +} + +/* called when wsj1 hangsup */ +void onHangup(void *closure, afb_wsj1 *wsj1) { + TRACE(); + UNUSED(closure); + UNUSED(wsj1); + printf("ON-HANGUP\n"); + fflush(stdout); + exit(0); +} + +/* called when wsj1 receives a reply */ +void onReply(void *closure, afb_wsj1_msg *msg) { + TRACE(); + printf("ON-REPLY %s: %s\n%s\n", (char *)closure, + afb_wsj1_msg_is_reply_ok(msg) ? "OK" : "ERROR", + json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), + JSON_C_TO_STRING_PRETTY)); + fflush(stdout); + free(closure); +} -AFBClient::AFBClient() : itf() -{ +} // namespace + +AFBClient &AFBClient::instance() { + TRACE(); + static AFBClient obj; + return obj; +} + +AFBClient::AFBClient() : wsj1{}, itf{}, loop{} { + TRACE(); ///* itinializing the callback interface for wsj1 */ - itf.on_hangup = AFBClient::onHangup; - itf.on_call = AFBClient::onCall; - itf.on_event = AFBClient::onEvent; + itf.on_hangup = onHangup; + itf.on_call = onCall; + itf.on_event = onEvent; } -AFBClient::~AFBClient() -{ +AFBClient::~AFBClient() { + TRACE(); + sd_event_unref(loop); + loop = nullptr; } -int AFBClient::init(int port, char const *token) -{ - char *uribuf = NULL; +int AFBClient::init(int port, char const *token) { + TRACE(); + char *uribuf = nullptr; int rc = -1; - printf("AFBClient::init() -->\n"); - if (!token || strlen(token) > token_maxlen) { - fprintf(stderr, "Token is invalid\n"); - rc = -EINVAL; - goto fail; + fprintf(stderr, "Token is invalid\n"); + rc = -EINVAL; + goto fail; } for (char const *p = token; *p; p++) { - if (!isalnum(*p)) { - fprintf(stderr, "Token is invalid\n"); - rc = -EINVAL; - goto fail; - } + if (!isalnum(*p)) { + fprintf(stderr, "Token is invalid\n"); + rc = -EINVAL; + goto fail; + } } if (port < 1 && port > 0xffff) { - fprintf(stderr, "Port is invalid\n"); - rc = -EINVAL; - goto fail; + fprintf(stderr, "Port is invalid\n"); + rc = -EINVAL; + goto fail; } /* get the default event loop */ rc = sd_event_default(&loop); if (rc < 0) { - fprintf(stderr, "Connection to default event loop failed: %s\n", strerror(-rc)); + 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 */ - wsj1 = afb_ws_client_connect_wsj1(loop, uribuf, &itf, NULL); - if (wsj1 == NULL) { + wsj1 = afb_ws_client_connect_wsj1(loop, uribuf, &itf, nullptr); + if (wsj1 == nullptr) { sd_event_unref(loop); fprintf(stderr, "Connection to %s failed: %m\n", uribuf); rc = -errno; goto fail; } - printf("AFBClient::init() <--\n"); return 0; fail: - printf("AFBClient::init() <--\n"); return rc; } int AFBClient::dispatch(uint64_t timeout) { + TRACE(); return sd_event_run(loop, timeout); } -int AFBClient::requestSurface(const char *label) -{ - printf("AFBClient::requestSurface(%s) -->\n", label); - constexpr char const *verb = "request_surface"; - - json_object *jp = json_object_new_object(); - json_object_object_add(jp, "drawing_name", json_object_new_string(label)); - - // std::experimental::optional look-alike - struct optional { - int value; - bool is_not_set; - }; - - constexpr struct optional const nullopt = {0, true}; - auto id = nullopt; - - /* send the request */ - int rc = afb_wsj1_call_j( - wsj1, AFBClient::wmAPI, verb, jp, - [](void *closure, afb_wsj1_msg *msg) { - if (afb_wsj1_msg_is_reply_ok(msg)) { - int id = json_object_get_int( - json_object_object_get(afb_wsj1_msg_object_j(msg), "response")); - auto oid = (optional *)closure; - *oid = optional{id}; - } else - fprintf(stderr, "wrong request surface reply received!\n"); - }, - (void *)&id); - - if (rc < 0) { - fprintf(stderr, "calling %s/%s(%s) failed: %m\n", AFBClient::wmAPI, verb, - json_object_to_json_string(jp)); - } else { - // Lets make this call sync here... - dispatch(-1); - - if (! id.is_not_set) { - char *buf; - asprintf(&buf, "%d", id.value); - 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"); - } else { - rc = 0; // Single point of success - } - } else { - fprintf(stderr, "Could not get surface ID from WM\n"); - rc = -EINVAL; - } - } - - printf("AFBClient::requestSurface(%s) = %d <--\n", label, rc); - - return rc; +int AFBClient::requestSurface(const char *label) { + TRACE(); + constexpr char const *verb = "request_surface"; + + json_object *jp = json_object_new_object(); + json_object_object_add(jp, "drawing_name", json_object_new_string(label)); + + // std::experimental::optional look-alike + struct optional { + int value; + bool is_not_set; + }; + + constexpr struct optional const nullopt = {0, true}; + auto id = nullopt; + + /* send the request */ + int rc = afb_wsj1_call_j( + wsj1, wmAPI, verb, jp, + [](void *closure, afb_wsj1_msg *msg) { + if (afb_wsj1_msg_is_reply_ok(msg)) { + int id = json_object_get_int(json_object_object_get( + afb_wsj1_msg_object_j(msg), "response")); + auto oid = (optional *)closure; + *oid = optional{id}; + } else + fprintf(stderr, "wrong request surface reply received!\n"); + }, + (void *)&id); + + if (rc < 0) { + fprintf(stderr, "calling %s/%s(%s) failed: %m\n", wmAPI, verb, + json_object_to_json_string(jp)); + } else { + // Lets make this call sync here... + dispatch(-1); + + if (!id.is_not_set) { + char *buf; + asprintf(&buf, "%d", id.value); + 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"); + } else { + rc = 0; // Single point of success + } + } else { + fprintf(stderr, "Could not get surface ID from WM\n"); + rc = -EINVAL; + } + } + + return rc; } -int AFBClient::activateSurface(const char *label) -{ - printf("AFBClient::activateSurface(%s) -->\n", label); - fflush(stdout); +int AFBClient::activateSurface(const char *label) { + TRACE(); const char begin[] = "{\"drawing_name\":\""; const char end[] = "\"}"; const char verb[] = "activate_surface"; - char *parameter = (char *)malloc(strlen(begin) + - strlen(label) + - strlen(end) + 1); + char *parameter = + (char *)malloc(strlen(begin) + strlen(label) + strlen(end) + 1); strcpy(parameter, begin); strcat(parameter, label); strcat(parameter, end); - call(AFBClient::wmAPI, verb, parameter); + call(wmAPI, verb, parameter); // Sync this one too dispatch(-1); - printf("AFBClient::activateSurface(%s) <--\n", label); - fflush(stdout); return 0; } -int AFBClient::deactivateSurface(const char *label) -{ - printf("AFBClient::deactivateSurface(%s) -->\n", label); - fflush(stdout); +int AFBClient::deactivateSurface(const char *label) { + TRACE(); json_object *j = json_object_new_object(); json_object_object_add(j, "drawing_name", json_object_new_string(label)); - call(AFBClient::wmAPI, "deactivate_surface", json_object_to_json_string(j)); + call(wmAPI, "deactivate_surface", json_object_to_json_string(j)); json_object_put(j); dispatch(-1); - printf("AFBClient::deactivateSurface(%s) <--\n", label); - fflush(stdout); return 0; } -int AFBClient::endDraw(const char *label) -{ - printf("AFBClient::endDraw(%s) -->\n", label); - fflush(stdout); +int AFBClient::endDraw(const char *label) { + TRACE(); json_object *j = json_object_new_object(); json_object_object_add(j, "drawing_name", json_object_new_string(label)); - call(AFBClient::wmAPI, "enddraw", json_object_to_json_string(j)); + call(wmAPI, "enddraw", json_object_to_json_string(j)); json_object_put(j); dispatch(-1); - printf("AFBClient::endDraw(%s) <--\n", label); - fflush(stdout); return 0; } -/* called when wsj1 receives a method invocation */ -void AFBClient::onCall(void *closure, const char *api, const char *verb, struct afb_wsj1_msg *msg) -{ - UNUSED(closure); - int rc; - printf("ON-CALL %s/%s:\n%s\n", api, verb, - json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), - JSON_C_TO_STRING_PRETTY)); - fflush(stdout); - rc = afb_wsj1_reply_error_s(msg, "\"unimplemented\"", NULL); - if (rc < 0) - fprintf(stderr, "replying failed: %m\n"); -} - -/* called when wsj1 receives an event */ -void AFBClient::onEvent(void *closure, const char *event, afb_wsj1_msg *msg) -{ - UNUSED(closure); - printf("ON-EVENT %s:\n%s\n", event, - json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), - JSON_C_TO_STRING_PRETTY)); - fflush(stdout); -} - -/* called when wsj1 hangsup */ -void AFBClient::onHangup(void *closure, afb_wsj1 *wsj1) -{ - UNUSED(closure); - UNUSED(wsj1); - printf("ON-HANGUP\n"); - fflush(stdout); - exit(0); -} - -/* called when wsj1 receives a reply */ -void AFBClient::onReply(void *closure, afb_wsj1_msg *msg) -{ - printf("ON-REPLY %s: %s\n%s\n", (char*)closure, - afb_wsj1_msg_is_reply_ok(msg) ? "OK" : "ERROR", - json_object_to_json_string_ext(afb_wsj1_msg_object_j(msg), - JSON_C_TO_STRING_PRETTY)); - fflush(stdout); - free(closure); -} - /* makes a call */ -void AFBClient::call(const char *api, const char *verb, const char *object) -{ +void AFBClient::call(const char *api, const char *verb, const char *object) { + TRACE(); static int num = 0; char *key; int rc; - printf("call(%s, %s, %s) -->\n", api, verb, object); fflush(stdout); /* allocates an id for the request */ rc = asprintf(&key, "%d:%s/%s", ++num, api, verb); /* send the request */ - rc = afb_wsj1_call_s(wsj1, api, verb, object, AFBClient::onReply, key); + rc = afb_wsj1_call_s(wsj1, api, verb, object, onReply, key); if (rc < 0) fprintf(stderr, "calling %s/%s(%s) failed: %m\n", api, verb, object); - printf("call(%s, %s, %s) <--\n", api, verb, object); fflush(stdout); } -/* sends an event */ -void AFBClient::event(const char *event, const char *object) -{ - int rc; - - rc = afb_wsj1_send_event_s(wsj1, event, object); - if (rc < 0) - fprintf(stderr, "sending !%s(%s) failed: %m\n", event, object); -} - -void AFBClient::set_event_handler(enum EventType at, std::function func) { - // XXX todo +void AFBClient::set_event_handler(enum EventType at, + std::function func) { + TRACE(); + // XXX todo }