diff options
| -rw-r--r-- | src/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/afb-subcall.c | 118 | ||||
| -rw-r--r-- | src/afb-subcall.h | 30 | ||||
| -rw-r--r-- | src/afb-xreq.c | 301 |
4 files changed, 208 insertions, 242 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 7d2db4a5..4a65ba94 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -55,7 +55,6 @@ ADD_LIBRARY(afb-lib STATIC afb-msg-json.c afb-session.c afb-stub-ws.c - afb-subcall.c afb-svc.c afb-websock.c afb-ws-client.c diff --git a/src/afb-subcall.c b/src/afb-subcall.c deleted file mode 100644 index 4af62747..00000000 --- a/src/afb-subcall.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright (C) 2016, 2017 "IoT.bzh" - * Author: José Bollo <jose.bollo@iot.bzh> - * - * 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. - */ - -#define _GNU_SOURCE - -#include <stdlib.h> -#include <string.h> - -#include <json-c/json.h> -#include <afb/afb-event-itf.h> - -#include "afb-subcall.h" -#include "afb-msg-json.h" -#include "afb-apiset.h" -#include "afb-context.h" -#include "afb-xreq.h" -#include "afb-cred.h" -#include "verbose.h" - -struct subcall -{ - struct afb_xreq xreq; - struct afb_xreq *caller; - void (*callback)(void*, int, struct json_object*); - void *closure; -}; - -static void subcall_destroy(struct afb_xreq *xreq) -{ - struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); - - json_object_put(subcall->xreq.json); - afb_cred_unref(subcall->xreq.cred); - afb_xreq_unref(subcall->caller); - free(subcall); -} - -static void subcall_reply(struct afb_xreq *xreq, int status, struct json_object *obj) -{ - struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); - - subcall->callback(subcall->closure, status, obj); - json_object_put(obj); -} - -static int subcall_subscribe(struct afb_xreq *xreq, struct afb_event event) -{ - struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); - - return afb_xreq_subscribe(subcall->caller, event); -} - -static int subcall_unsubscribe(struct afb_xreq *xreq, struct afb_event event) -{ - struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); - - return afb_xreq_unsubscribe(subcall->caller, event); -} - -const struct afb_xreq_query_itf afb_subcall_xreq_itf = { - .reply = subcall_reply, - .unref = subcall_destroy, - .subscribe = subcall_subscribe, - .unsubscribe = subcall_unsubscribe -}; - -void afb_subcall( - struct afb_xreq *caller, - const char *api, - const char *verb, - struct json_object *args, - void (*callback)(void*, int, struct json_object*), - void *closure -) -{ - struct subcall *subcall; - size_t lenapi, lenverb; - char *copy; - - lenapi = 1 + strlen(api); - lenverb = 1 + strlen(verb); - subcall = malloc(lenapi + lenverb + sizeof *subcall); - if (subcall == NULL) { - json_object_put(args); /* keep args existing */ - callback(closure, 1, afb_msg_json_internal_error()); - } else { - afb_xreq_init(&subcall->xreq, &afb_subcall_xreq_itf); - afb_context_subinit(&subcall->xreq.context, &caller->context); - subcall->xreq.cred = afb_cred_addref(caller->cred); - subcall->xreq.json = args; - copy = (char*)&subcall[1]; - memcpy(copy, api, lenapi); - subcall->xreq.api = copy; - copy = ©[lenapi]; - memcpy(copy, verb, lenverb); - subcall->xreq.verb = copy; - subcall->caller = caller; - subcall->callback = callback; - subcall->closure = closure; - afb_xreq_addref(caller); - afb_xreq_process(&subcall->xreq, caller->apiset); - } -} - diff --git a/src/afb-subcall.h b/src/afb-subcall.h deleted file mode 100644 index 082b02c8..00000000 --- a/src/afb-subcall.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright (C) 2016, 2017 "IoT.bzh" - * Author: José Bollo <jose.bollo@iot.bzh> - * - * 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. - */ - -#pragma once - -struct afb_xreq; -struct json_object; - -extern void afb_subcall( - struct afb_xreq *caller, - const char *api, - const char *verb, - struct json_object *args, - void (*callback)(void*, int, struct json_object*), - void *closure); - diff --git a/src/afb-xreq.c b/src/afb-xreq.c index cd0b0866..ec3a8fe2 100644 --- a/src/afb-xreq.c +++ b/src/afb-xreq.c @@ -31,7 +31,7 @@ #include "afb-xreq.h" #include "afb-evt.h" #include "afb-msg-json.h" -#include "afb-subcall.h" +#include "afb-cred.h" #include "afb-hook.h" #include "afb-api.h" #include "afb-apiset.h" @@ -41,6 +41,159 @@ /******************************************************************************/ +static inline void xreq_addref(struct afb_xreq *xreq) +{ + __atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED); +} + +static inline void xreq_unref(struct afb_xreq *xreq) +{ + if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) { + if (xreq->hookflags) + afb_hook_xreq_end(xreq); + xreq->queryitf->unref(xreq); + } +} + +/******************************************************************************/ + +struct subcall +{ + struct afb_xreq xreq; + struct afb_xreq *caller; + void (*callback)(void*, int, struct json_object*); + void *closure; + union { + struct { + struct jobloop *jobloop; + struct json_object *result; + int status; + }; + struct { + void (*callback)(void*, int, struct json_object*); + void *closure; + } hooked; + }; +}; + +static int subcall_subscribe(struct afb_xreq *xreq, struct afb_event event) +{ + struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); + + return afb_xreq_subscribe(subcall->caller, event); +} + +static int subcall_unsubscribe(struct afb_xreq *xreq, struct afb_event event) +{ + struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); + + return afb_xreq_unsubscribe(subcall->caller, event); +} + +static void subcall_reply(struct afb_xreq *xreq, int status, struct json_object *obj) +{ + struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); + + if (subcall->callback) + subcall->callback(subcall->closure, status, obj); + json_object_put(obj); +} + +static void subcall_destroy(struct afb_xreq *xreq) +{ + struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq); + + json_object_put(subcall->xreq.json); + afb_cred_unref(subcall->xreq.cred); + xreq_unref(subcall->caller); + free(subcall); +} + +const struct afb_xreq_query_itf afb_xreq_subcall_itf = { + .reply = subcall_reply, + .unref = subcall_destroy, + .subscribe = subcall_subscribe, + .unsubscribe = subcall_unsubscribe +}; + +static struct subcall *subcall_alloc( + struct afb_xreq *caller, + const char *api, + const char *verb, + struct json_object *args +) +{ + struct subcall *subcall; + size_t lenapi, lenverb; + char *copy; + + lenapi = 1 + strlen(api); + lenverb = 1 + strlen(verb); + subcall = malloc(lenapi + lenverb + sizeof *subcall); + if (!subcall) + ERROR("out of memory"); + else { + copy = (char*)&subcall[1]; + memcpy(copy, api, lenapi); + api = copy; + copy = ©[lenapi]; + memcpy(copy, verb, lenverb); + verb = copy; + + afb_xreq_init(&subcall->xreq, &afb_xreq_subcall_itf); + afb_context_subinit(&subcall->xreq.context, &caller->context); + subcall->xreq.cred = afb_cred_addref(caller->cred); + subcall->xreq.json = args; + subcall->xreq.api = api; + subcall->xreq.verb = verb; + subcall->caller = caller; + xreq_addref(caller); + } + return subcall; +} + +static void subcall_process(struct subcall *subcall) +{ + if (subcall->caller->queryitf->subcall) { + subcall->caller->queryitf->subcall( + subcall->caller, subcall->xreq.api, subcall->xreq.verb, + subcall->xreq.json, subcall->callback, subcall->closure); + xreq_unref(&subcall->xreq); + } else + afb_xreq_process(&subcall->xreq, subcall->caller->apiset); +} + +static void subcall_sync_leave(struct subcall *subcall) +{ + struct jobloop *jobloop = __atomic_exchange_n(&subcall->jobloop, NULL, __ATOMIC_RELAXED); + if (jobloop) + jobs_leave(jobloop); +} + +static void subcall_sync_reply(void *closure, int status, struct json_object *obj) +{ + struct subcall *subcall = closure; + + subcall->status = status; + subcall->result = json_object_get(obj); + subcall_sync_leave(subcall); +} + +static void subcall_sync_enter(int signum, void *closure, struct jobloop *jobloop) +{ + struct subcall *subcall = closure; + + if (!signum) { + subcall->jobloop = jobloop; + subcall_process(subcall); + } else { + subcall->status = -1; + subcall_sync_leave(subcall); + } +} + +/******************************************************************************/ + static void vinfo(void *first, void *second, const char *fmt, va_list args, void (*fun)(void*,void*,const char*)) { char *info; @@ -138,15 +291,13 @@ 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; - __atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED); + xreq_addref(xreq); } static void xreq_unref_cb(void *closure) { struct afb_xreq *xreq = closure; - if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) { - xreq->queryitf->unref(xreq); - } + xreq_unref(xreq); } static void xreq_session_close_cb(void *closure) @@ -198,79 +349,50 @@ int afb_xreq_unsubscribe(struct afb_xreq *xreq, 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) { struct afb_xreq *xreq = closure; + struct subcall *subcall; - if (xreq->queryitf->subcall) { - xreq->queryitf->subcall(xreq, api, verb, args, callback, cb_closure); + subcall = subcall_alloc(xreq, api, verb, args); + if (subcall == NULL) { + if (callback) + callback(cb_closure, 1, afb_msg_json_internal_error()); json_object_put(args); } else { - afb_subcall(xreq, api, verb, args, callback, cb_closure); - } -} - -struct xreq_sync -{ - struct afb_xreq *caller; - const char *api; - const char *verb; - struct json_object *args; - struct jobloop *jobloop; - struct json_object *result; - int status; -}; - -static void xreq_sync_leave(struct xreq_sync *sync) -{ - struct jobloop *jobloop = sync->jobloop; - if (jobloop) { - sync->jobloop = NULL; - jobs_leave(jobloop); - } -} - -static void xreq_sync_reply(void *closure, int status, struct json_object *obj) -{ - struct xreq_sync *sync = closure; - - sync->status = status; - sync->result = json_object_get(obj); - xreq_sync_leave(sync); -} - -static void xreq_sync_enter(int signum, void *closure, struct jobloop *jobloop) -{ - struct xreq_sync *sync = closure; - - if (!signum) { - sync->jobloop = jobloop; - xreq_subcall_cb(sync->caller, sync->api, sync->verb, json_object_get(sync->args), xreq_sync_reply, sync); - } else { - sync->status = -1; - xreq_sync_leave(sync); + subcall->callback = callback; + subcall->closure = cb_closure; + subcall_process(subcall); } } static int xreq_subcallsync_cb(void *closure, const char *api, const char *verb, struct json_object *args, struct json_object **result) { int rc; - struct xreq_sync sync; + struct subcall *subcall; struct afb_xreq *xreq = closure; + struct json_object *resu; - sync.caller = xreq; - sync.api = api; - sync.verb = verb; - sync.args = args; - sync.jobloop = NULL; - sync.result = NULL; - sync.status = 0; - - rc = jobs_enter(NULL, 0, xreq_sync_enter, &sync); - json_object_put(args); - if (rc < 0 || sync.status < 0) { - *result = sync.result ? : afb_msg_json_internal_error(); - return -1; + subcall = subcall_alloc(xreq, api, verb, args); + if (!subcall) { + rc = -1; + resu = afb_msg_json_internal_error(); + json_object_put(args); + } else { + subcall->callback = subcall_sync_reply; + subcall->closure = subcall; + subcall->jobloop = NULL; + subcall->result = NULL; + subcall->status = 0; + rc = jobs_enter(NULL, 0, subcall_sync_enter, subcall); + resu = subcall->result; + if (rc < 0 || subcall->status < 0) { + resu = resu ?: afb_msg_json_internal_error(); + rc = -1; + } } - *result = sync.result; - return 0; + if (result) + *result = resu; + else + json_object_put(resu); + return rc; } static void xreq_vverbose_cb(void*closure, int level, const char *file, int line, const char *func, const char *fmt, va_list args) @@ -350,10 +472,7 @@ 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); - } + xreq_unref_cb(closure); } static void xreq_hooked_session_close_cb(void *closure) @@ -384,35 +503,31 @@ static int xreq_hooked_unsubscribe_cb(void *closure, struct afb_event event) 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 status, struct json_object *result) { - struct reply *reply = closure; + struct subcall *subcall = closure; - afb_hook_xreq_subcall_result(reply->xreq, status, result); - reply->callback(reply->closure, status, result); - free(reply); + afb_hook_xreq_subcall_result(subcall->caller, status, result); + subcall->hooked.callback(subcall->hooked.closure, status, result); } 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; + struct subcall *subcall; + 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); + subcall = subcall_alloc(xreq, api, verb, args); + if (subcall == NULL) { + if (callback) + callback(cb_closure, 1, afb_msg_json_internal_error()); + json_object_put(args); } else { - ERROR("out of memory"); - xreq_subcall_cb(closure, api, verb, args, callback, cb_closure); + subcall->callback = xreq_hooked_subcall_reply_cb; + subcall->closure = subcall; + subcall->hooked.callback = callback; + subcall->hooked.closure = cb_closure; + subcall_process(subcall); } } @@ -723,20 +838,20 @@ static void process_async(int signum, void *arg) } else { process_sync(xreq); } - afb_xreq_unref(xreq); + xreq_unref(xreq); } void afb_xreq_process(struct afb_xreq *xreq, struct afb_apiset *apiset) { xreq->apiset = apiset; - afb_xreq_addref(xreq); + xreq_addref(xreq); if (jobs_queue(NULL, afb_apiset_timeout_get(apiset), process_async, xreq) < 0) { /* TODO: allows or not to proccess it directly as when no threading? (see above) */ ERROR("can't process job with threads: %m"); afb_xreq_fail_f(xreq, "cancelled", "not able to create a job for the task"); - afb_xreq_unref(xreq); + xreq_unref(xreq); } - afb_xreq_unref(xreq); + xreq_unref(xreq); } |