X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-xreq.c;h=4282f624afe2c8116c611bc9929938462a30dff4;hb=03f863dd080d32f71c4a0755c02e23c72e4cb342;hp=b64cefbe3be97b8851e7e02c1fa8a55bf9d87411;hpb=7effe02be236921437fb77d8fbeb21eb62e35939;p=src%2Fapp-framework-binder.git

diff --git a/src/afb-xreq.c b/src/afb-xreq.c
index b64cefbe..4282f624 100644
--- a/src/afb-xreq.c
+++ b/src/afb-xreq.c
@@ -30,75 +30,21 @@
 #include "afb-evt.h"
 #include "afb-msg-json.h"
 #include "afb-subcall.h"
+#include "afb-hook.h"
 #include "verbose.h"
 
 
-static struct json_object *xreq_json_cb(void *closure);
-static struct afb_arg xreq_get_cb(void *closure, const char *name);
-
-static void xreq_success_cb(void *closure, struct json_object *obj, const char *info);
-static void xreq_fail_cb(void *closure, const char *status, const char *info);
-
-static const char *xreq_raw_cb(void *closure, size_t *size);
-static void xreq_send_cb(void *closure, const char *buffer, size_t size);
-
-static void *xreq_context_get_cb(void *closure);
-static void xreq_context_set_cb(void *closure, void *value, void (*free_value)(void*));
-
-static void xreq_addref_cb(void *closure);
-static void xreq_unref_cb(void *closure);
-
-static void xreq_session_close_cb(void *closure);
-static int xreq_session_set_LOA_cb(void *closure, unsigned level);
-
-static int xreq_subscribe_cb(void *closure, struct afb_event event);
-static int xreq_unsubscribe_cb(void *closure, struct afb_event event);
-
-static void xreq_subcall_cb(
-		void *closure,
-		const char *api,
-		const char *verb,
-		struct json_object *args,
-		void (*callback)(void*, int, struct json_object*),
-		void *cb_closure);
-
-static int xreq_subcallsync_cb(
-		void *closure,
-		const char *api,
-		const char *verb,
-		struct json_object *args,
-		struct json_object **result);
-
-const struct afb_req_itf xreq_itf = {
-	.json = xreq_json_cb,
-	.get = xreq_get_cb,
-	.success = xreq_success_cb,
-	.fail = xreq_fail_cb,
-	.raw = xreq_raw_cb,
-	.send = xreq_send_cb,
-	.context_get = xreq_context_get_cb,
-	.context_set = xreq_context_set_cb,
-	.addref = xreq_addref_cb,
-	.unref = xreq_unref_cb,
-	.session_close = xreq_session_close_cb,
-	.session_set_LOA = xreq_session_set_LOA_cb,
-	.subscribe = xreq_subscribe_cb,
-	.unsubscribe = xreq_unsubscribe_cb,
-	.subcall = xreq_subcall_cb,
-	.subcallsync = xreq_subcallsync_cb
-};
-
 static struct json_object *xreq_json_cb(void *closure)
 {
 	struct afb_xreq *xreq = closure;
-	return xreq->json ? : (xreq->json = xreq->queryitf->json(xreq->query));
+	return xreq->json ? : (xreq->json = xreq->queryitf->json(xreq));
 }
 
 static struct afb_arg xreq_get_cb(void *closure, const char *name)
 {
 	struct afb_xreq *xreq = closure;
 	if (xreq->queryitf->get)
-		return xreq->queryitf->get(xreq->query, name);
+		return xreq->queryitf->get(xreq, name);
 	else
 		return afb_msg_json_get_arg(xreq_json_cb(closure), name);
 }
@@ -106,50 +52,37 @@ static struct afb_arg xreq_get_cb(void *closure, const char *name)
 static void xreq_success_cb(void *closure, struct json_object *obj, const char *info)
 {
 	struct afb_xreq *xreq = closure;
-	afb_xreq_success(xreq, obj, info);
-}
 
-void afb_xreq_success(struct afb_xreq *xreq, struct json_object *obj, const char *info)
-{
 	if (xreq->replied) {
 		ERROR("reply called more than one time!!");
 		json_object_put(obj);
 	} else {
 		xreq->replied = 1;
 		if (xreq->queryitf->success)
-			xreq->queryitf->success(xreq->query, obj, info);
+			xreq->queryitf->success(xreq, obj, info);
 		else
-			xreq->queryitf->reply(xreq->query, 0, afb_msg_json_reply_ok(info, obj, &xreq->context, NULL));
+			xreq->queryitf->reply(xreq, 0, afb_msg_json_reply_ok(info, obj, &xreq->context, NULL));
 	}
 }
 
 static void xreq_fail_cb(void *closure, const char *status, const char *info)
 {
 	struct afb_xreq *xreq = closure;
-	afb_xreq_fail(xreq, status, info);
-}
 
-void afb_xreq_fail(struct afb_xreq *xreq, const char *status, const char *info)
-{
 	if (xreq->replied) {
 		ERROR("reply called more than one time!!");
 	} else {
 		xreq->replied = 1;
 		if (xreq->queryitf->fail)
-			xreq->queryitf->fail(xreq->query, status, info);
+			xreq->queryitf->fail(xreq, status, info);
 		else
-			xreq->queryitf->reply(xreq->query, 1, afb_msg_json_reply_error(status, info, &xreq->context, NULL));
+			xreq->queryitf->reply(xreq, 1, afb_msg_json_reply_error(status, info, &xreq->context, NULL));
 	}
 }
 
 static const char *xreq_raw_cb(void *closure, size_t *size)
 {
 	struct afb_xreq *xreq = closure;
-	return afb_xreq_raw(xreq, size);
-}
-
-const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
-{
 	const char *result = json_object_to_json_string(xreq_json_cb(xreq));
 	if (size != NULL)
 		*size = strlen(result);
@@ -180,24 +113,14 @@ static void xreq_context_set_cb(void *closure, void *value, void (*free_value)(v
 static void xreq_addref_cb(void *closure)
 {
 	struct afb_xreq *xreq = closure;
-	afb_xreq_addref(xreq);
-}
-
-void afb_xreq_addref(struct afb_xreq *xreq)
-{
-	xreq->refcount++;
+	__atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED);
 }
 
 static void xreq_unref_cb(void *closure)
 {
 	struct afb_xreq *xreq = closure;
-	afb_xreq_unref(xreq);
-}
-
-void afb_xreq_unref(struct afb_xreq *xreq)
-{
-	if (!--xreq->refcount) {
-		xreq->queryitf->unref(xreq->query);
+	if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) {
+		xreq->queryitf->unref(xreq);
 	}
 }
 
@@ -224,7 +147,7 @@ int afb_xreq_subscribe(struct afb_xreq *xreq, struct afb_event event)
 	if (xreq->listener)
 		return afb_evt_add_watch(xreq->listener, event);
 	if (xreq->queryitf->subscribe)
-		return xreq->queryitf->subscribe(xreq->query, event);
+		return xreq->queryitf->subscribe(xreq, event);
 	ERROR("no event listener, subscription impossible");
 	errno = EINVAL;
 	return -1;
@@ -241,7 +164,7 @@ int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event event)
 	if (xreq->listener)
 		return afb_evt_remove_watch(xreq->listener, event);
 	if (xreq->queryitf->unsubscribe)
-		return xreq->queryitf->unsubscribe(xreq->query, event);
+		return xreq->queryitf->unsubscribe(xreq, event);
 	ERROR("no event listener, unsubscription impossible");
 	errno = EINVAL;
 	return -1;
@@ -251,13 +174,8 @@ static void xreq_subcall_cb(void *closure, const char *api, const char *verb, st
 {
 	struct afb_xreq *xreq = closure;
 
-	afb_xreq_subcall(xreq, api, verb, args, callback, cb_closure);
-}
-
-void afb_xreq_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
-{
 	if (xreq->queryitf->subcall)
-		xreq->queryitf->subcall(xreq->query, api, verb, args, callback, cb_closure);
+		xreq->queryitf->subcall(xreq, api, verb, args, callback, cb_closure);
 	else
 		afb_subcall(xreq, api, verb, args, callback, cb_closure);
 }
@@ -268,6 +186,197 @@ static int xreq_subcallsync_cb(void *closure, const char *api, const char *verb,
 	return afb_subcall_sync(xreq, api, verb, args, result);
 }
 
+static struct json_object *xreq_hooked_json_cb(void *closure)
+{
+	struct json_object *r = xreq_json_cb(closure);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_json(xreq, r);
+}
+
+static struct afb_arg xreq_hooked_get_cb(void *closure, const char *name)
+{
+	struct afb_arg r = xreq_get_cb(closure, name);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_get(xreq, name, r);
+}
+
+static void xreq_hooked_success_cb(void *closure, struct json_object *obj, const char *info)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_success(xreq, obj, info);
+	xreq_success_cb(closure, obj, info);
+}
+
+static void xreq_hooked_fail_cb(void *closure, const char *status, const char *info)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_fail(xreq, status, info);
+	xreq_fail_cb(closure, status, info);
+}
+
+static const char *xreq_hooked_raw_cb(void *closure, size_t *size)
+{
+	size_t s;
+	const char *r = xreq_raw_cb(closure, size ? : &s);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_raw(xreq, r, *(size ? : &s));
+}
+
+static void xreq_hooked_send_cb(void *closure, const char *buffer, size_t size)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_send(xreq, buffer, size);
+	xreq_send_cb(closure, buffer, size);
+}
+
+static void *xreq_hooked_context_get_cb(void *closure)
+{
+	void *r = xreq_context_get_cb(closure);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_context_get(xreq, r);
+}
+
+static void xreq_hooked_context_set_cb(void *closure, void *value, void (*free_value)(void*))
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_context_set(xreq, value, free_value);
+	xreq_context_set_cb(closure, value, free_value);
+}
+
+static void xreq_hooked_addref_cb(void *closure)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_addref(xreq);
+	xreq_addref_cb(closure);
+}
+
+static void xreq_hooked_unref_cb(void *closure)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_unref(xreq);
+	if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) {
+		afb_hook_xreq_end(xreq);
+		xreq->queryitf->unref(xreq);
+	}
+}
+
+static void xreq_hooked_session_close_cb(void *closure)
+{
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_session_close(xreq);
+	xreq_session_close_cb(closure);
+}
+
+static int xreq_hooked_session_set_LOA_cb(void *closure, unsigned level)
+{
+	int r = xreq_session_set_LOA_cb(closure, level);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_session_set_LOA(xreq, level, r);
+}
+
+static int xreq_hooked_subscribe_cb(void *closure, struct afb_event event)
+{
+	int r = xreq_subscribe_cb(closure, event);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_subscribe(xreq, event, r);
+}
+
+static int xreq_hooked_unsubscribe_cb(void *closure, struct afb_event event)
+{
+	int r = xreq_unsubscribe_cb(closure, event);
+	struct afb_xreq *xreq = closure;
+	return afb_hook_xreq_unsubscribe(xreq, event, r);
+}
+
+struct reply
+{
+	struct afb_xreq *xreq;
+	void (*callback)(void*, int, struct json_object*);
+	void *closure;
+};
+
+static void xreq_hooked_subcall_reply_cb(void *closure, int iserror, struct json_object *result)
+{
+	struct reply *reply = closure;
+	
+	afb_hook_xreq_subcall_result(reply->xreq, iserror, result);
+	reply->callback(reply->closure, iserror, result);
+	free(reply);
+}
+
+static void xreq_hooked_subcall_cb(void *closure, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
+{
+	struct reply *reply = malloc(sizeof *reply);
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_subcall(xreq, api, verb, args);
+	if (reply) {
+		reply->xreq = xreq;
+		reply->callback = callback;
+		reply->closure = cb_closure;
+		xreq_subcall_cb(closure, api, verb, args, xreq_hooked_subcall_reply_cb, reply);
+	} else {
+		ERROR("out of memory");
+		xreq_subcall_cb(closure, api, verb, args, callback, cb_closure);
+	}
+}
+
+static int xreq_hooked_subcallsync_cb(void *closure, const char *api, const char *verb, struct json_object *args, struct json_object **result)
+{
+	int r;
+	struct afb_xreq *xreq = closure;
+	afb_hook_xreq_subcallsync(xreq, api, verb, args);
+	r = xreq_subcallsync_cb(closure, api, verb, args, result);
+	return afb_hook_xreq_subcallsync_result(xreq, r, *result);
+}
+
+const struct afb_req_itf xreq_itf = {
+	.json = xreq_json_cb,
+	.get = xreq_get_cb,
+	.success = xreq_success_cb,
+	.fail = xreq_fail_cb,
+	.raw = xreq_raw_cb,
+	.send = xreq_send_cb,
+	.context_get = xreq_context_get_cb,
+	.context_set = xreq_context_set_cb,
+	.addref = xreq_addref_cb,
+	.unref = xreq_unref_cb,
+	.session_close = xreq_session_close_cb,
+	.session_set_LOA = xreq_session_set_LOA_cb,
+	.subscribe = xreq_subscribe_cb,
+	.unsubscribe = xreq_unsubscribe_cb,
+	.subcall = xreq_subcall_cb,
+	.subcallsync = xreq_subcallsync_cb
+};
+
+const struct afb_req_itf xreq_hooked_itf = {
+	.json = xreq_hooked_json_cb,
+	.get = xreq_hooked_get_cb,
+	.success = xreq_hooked_success_cb,
+	.fail = xreq_hooked_fail_cb,
+	.raw = xreq_hooked_raw_cb,
+	.send = xreq_hooked_send_cb,
+	.context_get = xreq_hooked_context_get_cb,
+	.context_set = xreq_hooked_context_set_cb,
+	.addref = xreq_hooked_addref_cb,
+	.unref = xreq_hooked_unref_cb,
+	.session_close = xreq_hooked_session_close_cb,
+	.session_set_LOA = xreq_hooked_session_set_LOA_cb,
+	.subscribe = xreq_hooked_subscribe_cb,
+	.unsubscribe = xreq_hooked_unsubscribe_cb,
+	.subcall = xreq_hooked_subcall_cb,
+	.subcallsync = xreq_hooked_subcallsync_cb
+};
+
+static inline struct afb_req to_req(struct afb_xreq *xreq)
+{
+	return (struct afb_req){ .itf = xreq->hookflags ? &xreq_hooked_itf : &xreq_itf, .closure = xreq };
+}
+
+void afb_xreq_success(struct afb_xreq *xreq, struct json_object *obj, const char *info)
+{
+	afb_req_success(to_req(xreq), obj, info);
+}
+
 void afb_xreq_success_f(struct afb_xreq *xreq, struct json_object *obj, const char *info, ...)
 {
 	char *message;
@@ -280,6 +389,11 @@ void afb_xreq_success_f(struct afb_xreq *xreq, struct json_object *obj, const ch
 	free(message);
 }
 
+void afb_xreq_fail(struct afb_xreq *xreq, const char *status, const char *info)
+{
+	afb_req_fail(to_req(xreq), status, info);
+}
+
 void afb_xreq_fail_f(struct afb_xreq *xreq, const char *status, const char *info, ...)
 {
 	char *message;
@@ -292,9 +406,34 @@ void afb_xreq_fail_f(struct afb_xreq *xreq, const char *status, const char *info
 	free(message);
 }
 
-static int xcheck(struct afb_xreq *xreq, int stag)
+const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
 {
-	if ((stag & (AFB_SESSION_CREATE|AFB_SESSION_CLOSE|AFB_SESSION_RENEW|AFB_SESSION_CHECK|AFB_SESSION_LOA_EQ)) != 0) {
+	return afb_req_raw(to_req(xreq), size);
+}
+
+void afb_xreq_addref(struct afb_xreq *xreq)
+{
+	afb_req_addref(to_req(xreq));
+}
+
+void afb_xreq_unref(struct afb_xreq *xreq)
+{
+	afb_req_unref(to_req(xreq));
+}
+
+void afb_xreq_unhooked_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
+{
+	xreq_subcall_cb(xreq, api, verb, args, callback, cb_closure);
+}
+
+void afb_xreq_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
+{
+	afb_req_subcall(to_req(xreq), api, verb, args, callback, cb_closure);
+}
+
+static int xcheck(struct afb_xreq *xreq, int sessionflags)
+{
+	if ((sessionflags & (AFB_SESSION_CREATE|AFB_SESSION_CLOSE|AFB_SESSION_RENEW|AFB_SESSION_CHECK|AFB_SESSION_LOA_EQ)) != 0) {
 		if (!afb_context_check(&xreq->context)) {
 			afb_context_close(&xreq->context);
 			afb_xreq_fail_f(xreq, "failed", "invalid token's identity");
@@ -302,7 +441,7 @@ static int xcheck(struct afb_xreq *xreq, int stag)
 		}
 	}
 
-	if ((stag & AFB_SESSION_CREATE) != 0) {
+	if ((sessionflags & AFB_SESSION_CREATE) != 0) {
 		if (afb_context_check_loa(&xreq->context, 1)) {
 			afb_xreq_fail_f(xreq, "failed", "invalid creation state");
 			return 0;
@@ -311,24 +450,24 @@ static int xcheck(struct afb_xreq *xreq, int stag)
 		afb_context_refresh(&xreq->context);
 	}
 
-	if ((stag & (AFB_SESSION_CREATE | AFB_SESSION_RENEW)) != 0)
+	if ((sessionflags & (AFB_SESSION_CREATE | AFB_SESSION_RENEW)) != 0)
 		afb_context_refresh(&xreq->context);
 
-	if ((stag & AFB_SESSION_CLOSE) != 0) {
+	if ((sessionflags & AFB_SESSION_CLOSE) != 0) {
 		afb_context_change_loa(&xreq->context, 0);
 		afb_context_close(&xreq->context);
 	}
 
-	if ((stag & AFB_SESSION_LOA_GE) != 0) {
-		int loa = (stag >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
+	if ((sessionflags & AFB_SESSION_LOA_GE) != 0) {
+		int loa = (sessionflags >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
 		if (!afb_context_check_loa(&xreq->context, loa)) {
 			afb_xreq_fail_f(xreq, "failed", "invalid LOA");
 			return 0;
 		}
 	}
 
-	if ((stag & AFB_SESSION_LOA_LE) != 0) {
-		int loa = (stag >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
+	if ((sessionflags & AFB_SESSION_LOA_LE) != 0) {
+		int loa = (sessionflags >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
 		if (afb_context_check_loa(&xreq->context, loa + 1)) {
 			afb_xreq_fail_f(xreq, "failed", "invalid LOA");
 			return 0;
@@ -337,9 +476,22 @@ static int xcheck(struct afb_xreq *xreq, int stag)
 	return 1;
 }
 
-void afb_xreq_call(struct afb_xreq *xreq, int sessionflags, void (*callback)(struct afb_req req))
+void afb_xreq_call(struct afb_xreq *xreq, int sessionflags, void (*method)(struct afb_req req))
 {
 	if (xcheck(xreq, sessionflags))
-		callback((struct afb_req){ .itf = &xreq_itf, .closure = xreq });
+		method(to_req(xreq));
+}
+
+void afb_xreq_begin(struct afb_xreq *xreq)
+{
+	afb_hook_init_xreq(xreq);
+	if (xreq->hookflags)
+		afb_hook_xreq_begin(xreq);
+}
+
+void afb_xreq_init(struct afb_xreq *xreq, const struct afb_xreq_query_itf *queryitf)
+{
+	xreq->refcount = 1;
+	xreq->queryitf = queryitf;
 }