X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-svc.c;h=212ecfa3d157406d4318f53370451a7e50a98dfc;hb=a63851bb4726c89d9a3c5755d78d1c4bbc3f3b2e;hp=4038218c726f2aa148d65c4d8d7d60d2ebee9106;hpb=a38382e89710db2c298f7f101e3ba0cf3681287c;p=src%2Fapp-framework-binder.git

diff --git a/src/afb-svc.c b/src/afb-svc.c
index 4038218c..212ecfa3 100644
--- a/src/afb-svc.c
+++ b/src/afb-svc.c
@@ -18,211 +18,364 @@
 #define _GNU_SOURCE
 
 #include <stdlib.h>
+#include <string.h>
+#include <errno.h>
 
 #include <json-c/json.h>
 
-#include <afb/afb-req-itf.h>
-#include <afb/afb-service-itf.h>
+#include <afb/afb-binding-v1.h>
+#include <afb/afb-binding-v2.h>
 
-#include "session.h"
+#include "afb-session.h"
 #include "afb-context.h"
 #include "afb-evt.h"
-#include "afb-subcall.h"
+#include "afb-msg-json.h"
 #include "afb-svc.h"
+#include "afb-xreq.h"
+#include "afb-cred.h"
+#include "afb-apiset.h"
+#include "afb-hook.h"
+#include "jobs.h"
+#include "verbose.h"
 
-/*
- * Structure for recording service
- */
-struct afb_svc
-{
-	/* session of the service */
-	struct AFB_clientCtx *session;
 
-	/* event listener of the service or NULL */
-	struct afb_evt_listener *listener;
-
-	/* on event callback for the service */
-	void (*on_event)(const char *event, struct json_object *object);
-};
+#define HOOK(x,...) if((svc)->hookflags & afb_hook_flag_svc_##x) afb_hook_svc_##x(__VA_ARGS__)
 
 /*
  * Structure for requests initiated by the service
  */
 struct svc_req
 {
-	/*
-	 * CAUTION: 'context' field should be the first because there
-	 * is an implicit convertion to struct afb_context
-	 */
-	struct afb_context context;
+	struct afb_xreq xreq;
 
-	/* the service */
 	struct afb_svc *svc;
 
-	/* the count of references to the request */
-	int refcount;
+	/* the args */
+	void (*callback)(void*, int, struct json_object*);
+	void *closure;
+
+	/* sync */
+	struct jobloop *jobloop;
+	struct json_object *result;
+	int status;
+	int async;
 };
 
 /* functions for services */
-static void svc_on_event(struct afb_svc *svc, const char *event, int eventid, struct json_object *object);
-static void svc_call(struct afb_svc *svc, const char *api, const char *verb, struct json_object *args,
-				void (*callback)(void*, int, struct json_object*), void *closure);
+static void svc_on_event(void *closure, const char *event, int eventid, struct json_object *object);
+static void svc_call(void *closure, const char *api, const char *verb, struct json_object *args,
+				void (*callback)(void*, int, struct json_object*), void *cbclosure);
+static int svc_call_sync(void *closure, const char *api, const char *verb, struct json_object *args,
+				struct json_object **result);
 
 /* the interface for services */
 static const struct afb_service_itf service_itf = {
-	.call = (void*)svc_call
+	.call = svc_call,
+	.call_sync = svc_call_sync
 };
 
 /* the interface for events */
 static const struct afb_evt_itf evt_itf = {
-	.broadcast = (void*)svc_on_event,
-	.push = (void*)svc_on_event
+	.broadcast = svc_on_event,
+	.push = svc_on_event
 };
 
 /* functions for requests of services */
-static void svcreq_addref(struct svc_req *svcreq);
-static void svcreq_unref(struct svc_req *svcreq);
-static int svcreq_subscribe(struct svc_req *svcreq, struct afb_event event);
-static int svcreq_unsubscribe(struct svc_req *svcreq, struct afb_event event);
-static void svcreq_subcall(struct svc_req *svcreq, const char *api, const char *verb, struct json_object *args,
-				void (*callback)(void*, int, struct json_object*), void *closure);
+static void svcreq_destroy(struct afb_xreq *xreq);
+static void svcreq_reply(struct afb_xreq *xreq, int status, json_object *obj);
 
 /* interface for requests of services */
-const struct afb_req_itf afb_svc_req_itf = {
-	.addref = (void*)svcreq_addref,
-	.unref = (void*)svcreq_unref,
-	.context_get = (void*)afb_context_get,
-	.context_set = (void*)afb_context_set,
-	.session_close = (void*)afb_context_close,
-	.session_set_LOA = (void*)afb_context_change_loa,
-	.subscribe = (void*)svcreq_subscribe,
-	.unsubscribe = (void*)svcreq_unsubscribe,
-	.subcall = (void*)svcreq_subcall
+const struct afb_xreq_query_itf afb_svc_xreq_itf = {
+	.unref = svcreq_destroy,
+	.reply = svcreq_reply
 };
 
-/* the common session for services sahring their session */
-static struct AFB_clientCtx *common_session;
+/* the common session for services sharing their session */
+static struct afb_session *common_session;
+
+static inline struct afb_service to_afb_service(struct afb_svc *svc)
+{
+	return (struct afb_service){ .itf = &service_itf, .closure = svc };
+}
+
+/*
+ * Frees a service
+ */
+void afb_svc_destroy(struct afb_svc *svc, struct afb_service *service)
+{
+	if (service)
+		*service = (struct afb_service){ .itf = NULL, .closure = NULL };
+	if (svc) {
+		if (svc->listener != NULL)
+			afb_evt_listener_unref(svc->listener);
+		if (svc->session)
+			afb_session_unref(svc->session);
+		afb_apiset_unref(svc->apiset);
+		free(svc);
+	}
+}
 
 /*
  * Creates a new service
  */
-struct afb_svc *afb_svc_create(int share_session, int (*init)(struct afb_service service), void (*on_event)(const char *event, struct json_object *object))
+struct afb_svc *afb_svc_create(
+			const char *api,
+			struct afb_apiset *apiset,
+			int share_session,
+			void (*on_event)(const char *event, struct json_object *object),
+			struct afb_service *service
+)
 {
-	int rc;
 	struct afb_svc *svc;
 
 	/* allocates the svc handler */
-	svc = malloc(sizeof * svc);
-	if (svc == NULL)
-		goto error;
+	svc = calloc(1, sizeof * svc);
+	if (svc == NULL) {
+		errno = ENOMEM;
+		return NULL;
+	}
+
+	/* instanciate the apiset */
+	svc->api = api;
+	svc->apiset = afb_apiset_addref(apiset);
 
 	/* instanciate the session */
 	if (share_session) {
 		/* session shared with other svcs */
 		if (common_session == NULL) {
-			common_session = ctxClientCreate (NULL, 0);
+			common_session = afb_session_create (NULL, 0);
 			if (common_session == NULL)
-				goto error2;
+				goto error;
 		}
-		svc->session = ctxClientAddRef(common_session);
+		svc->session = afb_session_addref(common_session);
 	} else {
 		/* session dedicated to the svc */
-		svc->session = ctxClientCreate (NULL, 0);
+		svc->session = afb_session_create (NULL, 0);
 		if (svc->session == NULL)
-			goto error2;
+			goto error;
 	}
 
+	svc->hookflags = afb_hook_flags_svc(svc->api);
+	if (service)
+		*service = to_afb_service(svc);
+
 	/* initialises the listener if needed */
-	svc->on_event = on_event;
-	if (on_event == NULL)
-		svc->listener = NULL;
-	else {
+	if (on_event) {
+		svc->on_event = on_event;
 		svc->listener = afb_evt_listener_create(&evt_itf, svc);
 		if (svc->listener == NULL)
-			goto error3;
+			goto error;
 	}
 
-	/* initialises the svc now */
-	rc = init((struct afb_service){ .itf = &service_itf, .closure = svc });
-	if (rc < 0)
-		goto error4;
-
 	return svc;
 
-error4:
-	if (svc->listener != NULL)
-		afb_evt_listener_unref(svc->listener);
-error3:
-	ctxClientUnref(svc->session);
-error2:
-	free(svc);
 error:
+	afb_svc_destroy(svc, service);
 	return NULL;
 }
 
+/*
+ * Starts a new service (v1)
+ */
+int afb_svc_start_v1(struct afb_svc *svc, int (*start)(struct afb_service))
+{
+	int rc;
+
+	HOOK(start_before, svc);
+	rc = start(to_afb_service(svc));
+	HOOK(start_after, svc, rc);
+	return rc;
+}
+
+/*
+ * Starts a new service (v2)
+ */
+int afb_svc_start_v2(struct afb_svc *svc, int (*start)())
+{
+	int rc;
+
+	HOOK(start_before, svc);
+	rc = start();
+	HOOK(start_after, svc, rc);
+	return rc;
+}
+
+/*
+ * Request to updates the hooks
+ */
+void afb_svc_update_hook(struct afb_svc *svc)
+{
+	svc->hookflags = afb_hook_flags_svc(svc->api);
+}
+
 /*
  * Propagates the event to the service
  */
-static void svc_on_event(struct afb_svc *svc, const char *event, int eventid, struct json_object *object)
+static void svc_on_event(void *closure, const char *event, int eventid, struct json_object *object)
 {
+	struct afb_svc *svc = closure;
+
+	HOOK(on_event_before, svc, event, eventid, object);
 	svc->on_event(event, object);
+	HOOK(on_event_after, svc, event, eventid, object);
 	json_object_put(object);
 }
 
 /*
- * Initiates a call for the service
+ * create an svc_req
  */
-static void svc_call(struct afb_svc *svc, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure)
+static struct svc_req *svcreq_create(struct afb_svc *svc, const char *api, const char *verb, struct json_object *args)
 {
 	struct svc_req *svcreq;
+	size_t lenapi, lenverb;
+	char *copy;
 
 	/* allocates the request */
-	svcreq = malloc(sizeof *svcreq);
-	if (svcreq == NULL)
-		return afb_subcall_internal_error(callback, closure);
-
-	/* initialises the request */
-	afb_context_init(&svcreq->context, svc->session, NULL);
-	svcreq->context.validated = 1;
-	svcreq->svc = svc;
-	svcreq->refcount = 1;
+	lenapi = 1 + strlen(api);
+	lenverb = 1 + strlen(verb);
+	svcreq = malloc(lenapi + lenverb + sizeof *svcreq);
+	if (svcreq != NULL) {
+		/* initialises the request */
+		afb_xreq_init(&svcreq->xreq, &afb_svc_xreq_itf);
+		afb_context_init(&svcreq->xreq.context, svc->session, NULL);
+		svcreq->xreq.context.validated = 1;
+		copy = (char*)&svcreq[1];
+		memcpy(copy, api, lenapi);
+		svcreq->xreq.api = copy;
+		copy = &copy[lenapi];
+		memcpy(copy, verb, lenverb);
+		svcreq->xreq.verb = copy;
+		svcreq->xreq.listener = svc->listener;
+		svcreq->xreq.json = args;
+		svcreq->svc = svc;
+	}
+	return svcreq;
+}
 
-	/* makes the call */
-	afb_subcall(&svcreq->context, api, verb, args, callback, closure, (struct afb_req){ .itf = &afb_svc_req_itf, .closure = svcreq });
+/*
+ * destroys the svc_req
+ */
+static void svcreq_destroy(struct afb_xreq *xreq)
+{
+	struct svc_req *svcreq = CONTAINER_OF_XREQ(struct svc_req, xreq);
 
-	/* terminates and frees ressources if needed */
-	svcreq_unref(svcreq);
+	afb_context_disconnect(&svcreq->xreq.context);
+	json_object_put(svcreq->xreq.json);
+	afb_cred_unref(svcreq->xreq.cred);
+	free(svcreq);
 }
 
-static void svcreq_addref(struct svc_req *svcreq)
+static void svcreq_sync_leave(struct svc_req *svcreq)
 {
-	svcreq->refcount++;
+	struct jobloop *jobloop = svcreq->jobloop;
+
+	if (jobloop) {
+		svcreq->jobloop = NULL;
+		jobs_leave(jobloop);
+	}
 }
 
-static void svcreq_unref(struct svc_req *svcreq)
+static void svcreq_reply(struct afb_xreq *xreq, int status, json_object *obj)
 {
-	if (0 == --svcreq->refcount) {
-		afb_context_disconnect(&svcreq->context);
-		free(svcreq);
+	struct svc_req *svcreq = CONTAINER_OF_XREQ(struct svc_req, xreq);
+	if (svcreq->async) {
+		struct afb_svc *svc = svcreq->svc;
+		if (svcreq->callback)
+			svcreq->callback(svcreq->closure, status, obj);
+		HOOK(call_result, svc, status, obj);
+		json_object_put(obj);
+	} else {
+		svcreq->status = status;
+		svcreq->result = obj;
+		svcreq_sync_leave(svcreq);
 	}
 }
 
-static int svcreq_subscribe(struct svc_req *svcreq, struct afb_event event)
+static void svcreq_sync_enter(int signum, void *closure, struct jobloop *jobloop)
 {
-	if (svcreq->svc->listener == NULL)
-		return -1;
-	return afb_evt_add_watch(svcreq->svc->listener, event);
+	struct svc_req *svcreq = closure;
+
+	if (!signum) {
+		svcreq->jobloop = jobloop;
+		afb_xreq_process(&svcreq->xreq, svcreq->svc->apiset);
+	} else {
+		svcreq->result = afb_msg_json_internal_error();
+		svcreq->status = -1;
+		svcreq_sync_leave(svcreq);
+	}
 }
 
-static int svcreq_unsubscribe(struct svc_req *svcreq, struct afb_event event)
+/*
+ * Initiates a call for the service
+ */
+static void svc_call(void *closure, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cbclosure)
 {
-	if (svcreq->svc->listener == NULL)
-		return -1;
-	return afb_evt_remove_watch(svcreq->svc->listener, event);
+	struct afb_svc *svc = closure;
+	struct svc_req *svcreq;
+	struct json_object *ierr;
+
+	HOOK(call, svc, api, verb, args);
+
+	/* allocates the request */
+	svcreq = svcreq_create(svc, api, verb, args);
+	if (svcreq == NULL) {
+		ERROR("out of memory");
+		json_object_put(args);
+		ierr = afb_msg_json_internal_error();
+		if (callback)
+			callback(cbclosure, -1, ierr);
+		HOOK(call_result, svc, -1, ierr);
+		json_object_put(ierr);
+		return;
+	}
+
+	/* initialises the request */
+	svcreq->jobloop = NULL;
+	svcreq->callback = callback;
+	svcreq->closure = cbclosure;
+	svcreq->async = 1;
+
+	/* terminates and frees ressources if needed */
+	afb_xreq_process(&svcreq->xreq, svc->apiset);
 }
 
-static void svcreq_subcall(struct svc_req *svcreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure)
+static int svc_call_sync(void *closure, const char *api, const char *verb, struct json_object *args,
+				struct json_object **result)
 {
-	afb_subcall(&svcreq->context, api, verb, args, callback, closure, (struct afb_req){ .itf = &afb_svc_req_itf, .closure = svcreq });
+	struct afb_svc *svc = closure;
+	struct svc_req *svcreq;
+	struct json_object *resu;
+	int rc;
+
+	HOOK(callsync, svc, api, verb, args);
+
+	/* allocates the request */
+	svcreq = svcreq_create(svc, api, verb, args);
+	if (svcreq == NULL) {
+		ERROR("out of memory");
+		errno = ENOMEM;
+		json_object_put(args);
+		resu = afb_msg_json_internal_error();
+		rc = -1;
+	} else {
+		/* initialises the request */
+		svcreq->jobloop = NULL;
+		svcreq->callback = NULL;
+		svcreq->result = NULL;
+		svcreq->status = 0;
+		svcreq->async = 0;
+		afb_xreq_addref(&svcreq->xreq);
+		rc = jobs_enter(NULL, 0, svcreq_sync_enter, svcreq);
+		if (rc >= 0)
+			rc = svcreq->status;
+		resu = (rc >= 0 || svcreq->result) ? svcreq->result : afb_msg_json_internal_error();
+		afb_xreq_unref(&svcreq->xreq);
+	}
+	HOOK(callsync_result, svc, rc, resu);
+	if (result)
+		*result = resu;
+	else
+		json_object_put(resu);
+	return rc;
 }