+++ /dev/null
-/*
- * Copyright (C) 2015, 2016 "IoT.bzh"
- * Author "Fulup Ar Foll"
- *
- * 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 /* See feature_test_macros(7) */
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include <json-c/json.h>
-
-#include <afb/afb-plugin.h>
-
-#include "utils-jbus.h"
-
-static const char _added_[] = "added";
-static const char _auto_[] = "auto";
-static const char _continue_[] = "continue";
-static const char _changed_[] = "changed";
-static const char _detail_[] = "detail";
-static const char _id_[] = "id";
-static const char _install_[] = "install";
-static const char _local_[] = "local";
-static const char _mode_[] = "mode";
-static const char _remote_[] = "remote";
-static const char _runid_[] = "runid";
-static const char _runnables_[] = "runnables";
-static const char _runners_[] = "runners";
-static const char _start_[] = "start";
-static const char _state_[] = "state";
-static const char _stop_[] = "stop";
-static const char _terminate_[] = "terminate";
-static const char _uninstall_[] = "uninstall";
-static const char _uri_[] = "uri";
-
-static const struct AFB_interface *afb_interface;
-static struct afb_event_sender event_sender;
-
-static struct jbus *jbus;
-
-struct memo
-{
- struct afb_req request;
- const char *method;
-};
-
-static struct memo *make_memo(struct afb_req request, const char *method)
-{
- struct memo *memo = malloc(sizeof *memo);
- if (memo != NULL) {
- memo->request = request;
- memo->method = method;
- afb_req_addref(request);
- }
- return memo;
-}
-
-static void application_list_changed(const char *data, void *closure)
-{
- afb_event_sender_push(event_sender, "application-list-changed", NULL);
-}
-
-static struct json_object *embed(const char *tag, struct json_object *obj)
-{
- struct json_object *result;
-
- if (obj == NULL)
- result = NULL;
- else if (!tag)
- result = obj;
- else {
- result = json_object_new_object();
- if (result == NULL) {
- /* can't embed */
- result = obj;
- }
- else {
- /* TODO why is json-c not returning a status? */
- json_object_object_add(result, tag, obj);
- }
- }
- return result;
-}
-
-static void embed_call_void_callback(int status, struct json_object *obj, struct memo *memo)
-{
- if (afb_interface->verbosity)
- fprintf(stderr, "(afm-main-plugin) %s(true) -> %s\n", memo->method,
- obj ? json_object_to_json_string(obj) : "NULL");
- if (obj == NULL) {
- afb_req_fail(memo->request, "failed", "framework daemon failure");
- } else {
- obj = json_object_get(obj);
- obj = embed(memo->method, obj);
- if (obj == NULL) {
- afb_req_fail(memo->request, "failed", "framework daemon failure");
- } else {
- afb_req_success(memo->request, obj, NULL);
- }
- }
- afb_req_unref(memo->request);
- free(memo);
-}
-
-static void embed_call_void(struct afb_req request, const char *method)
-{
- struct memo *memo = make_memo(request, method);
- if (memo == NULL)
- afb_req_fail(request, "failed", "out of memory");
- else if (jbus_call_sj(jbus, method, "true", (void*)embed_call_void_callback, memo) < 0) {
- afb_req_fail(request, "failed", "dbus failure");
- free(memo);
- }
-}
-
-static void call_appid_callback(int status, struct json_object *obj, struct memo *memo)
-{
- if (afb_interface->verbosity)
- fprintf(stderr, "(afm-main-plugin) %s -> %s\n", memo->method,
- obj ? json_object_to_json_string(obj) : "NULL");
- if (obj == NULL) {
- afb_req_fail(memo->request, "failed", "framework daemon failure");
- } else {
- obj = json_object_get(obj);
- afb_req_success(memo->request, obj, NULL);
- }
- afb_req_unref(memo->request);
- free(memo);
-}
-
-static void call_appid(struct afb_req request, const char *method)
-{
- struct memo *memo;
- char *sid;
- const char *id = afb_req_value(request, _id_);
- if (id == NULL) {
- afb_req_fail(request, "bad-request", "missing 'id'");
- return;
- }
- memo = make_memo(request, method);
- if (asprintf(&sid, "\"%s\"", id) <= 0 || memo == NULL) {
- afb_req_fail(request, "server-error", "out of memory");
- free(memo);
- return;
- }
- if (jbus_call_sj(jbus, method, sid, (void*)call_appid_callback, memo) < 0) {
- afb_req_fail(request, "failed", "dbus failure");
- free(memo);
- }
- free(sid);
-}
-
-static void call_runid(struct afb_req request, const char *method)
-{
- struct json_object *obj;
- const char *id = afb_req_value(request, _runid_);
- if (id == NULL) {
- afb_req_fail(request, "bad-request", "missing 'runid'");
- return;
- }
- obj = jbus_call_sj_sync(jbus, method, id);
- if (afb_interface->verbosity)
- fprintf(stderr, "(afm-main-plugin) %s(%s) -> %s\n", method, id,
- obj ? json_object_to_json_string(obj) : "NULL");
- if (obj == NULL) {
- afb_req_fail(request, "failed", "framework daemon failure");
- return;
- }
- obj = json_object_get(obj);
- afb_req_success(request, obj, NULL);
-}
-
-/************************** entries ******************************/
-
-static void runnables(struct afb_req request)
-{
- embed_call_void(request, _runnables_);
-}
-
-static void detail(struct afb_req request)
-{
- call_appid(request, _detail_);
-}
-
-static void start(struct afb_req request)
-{
- struct json_object *obj;
- const char *id, *mode;
- char *query;
- int rc;
-
- /* get the id */
- id = afb_req_value(request, _id_);
- if (id == NULL) {
- afb_req_fail(request, "bad-request", "missing 'id'");
- return;
- }
- /* get the mode */
- mode = afb_req_value(request, _mode_);
- if (mode == NULL || !strcmp(mode, _auto_)) {
- mode = afb_interface->mode == AFB_MODE_REMOTE ? _remote_ : _local_;
- }
-
- /* create the query */
- rc = asprintf(&query, "{\"id\":\"%s\",\"mode\":\"%s\"}", id, mode);
- if (rc < 0) {
- afb_req_fail(request, "server-error", "out of memory");
- return;
- }
-
- /* calls the service */
- obj = jbus_call_sj_sync(jbus, _start_, query);
- if (afb_interface->verbosity)
- fprintf(stderr, "(afm-main-plugin) start(%s) -> %s\n", query,
- obj ? json_object_to_json_string(obj) : "NULL");
- free(query);
-
- /* check status */
- obj = json_object_get(obj);
- if (obj == NULL) {
- afb_req_fail(request, "failed", "framework daemon failure");
- return;
- }
-
- /* embed if needed */
- if (json_object_get_type(obj) == json_type_int)
- obj = embed(_runid_, obj);
- afb_req_success(request, obj, NULL);
-}
-
-static void terminate(struct afb_req request)
-{
- call_runid(request, _terminate_);
-}
-
-static void stop(struct afb_req request)
-{
- call_runid(request, _stop_);
-}
-
-static void continue_(struct afb_req request)
-{
- call_runid(request, _continue_);
-}
-
-static void runners(struct afb_req request)
-{
- embed_call_void(request, _runners_);
-}
-
-static void state(struct afb_req request)
-{
- call_runid(request, _state_);
-}
-
-static void install(struct afb_req request)
-{
- struct json_object *obj, *added;
- char *query;
- const char *filename;
- struct afb_arg arg;
-
- /* get the argument */
- arg = afb_req_get(request, "widget");
- filename = arg.path;
- if (filename == NULL) {
- afb_req_fail(request, "bad-request", "missing 'widget' file");
- return;
- }
-
- /* makes the query */
- if (0 >= asprintf(&query, "\"%s\"", filename)) {
- afb_req_fail(request, "server-error", "out of memory");
- return;
- }
-
- obj = jbus_call_sj_sync(jbus, _install_, query);
- if (afb_interface->verbosity)
- fprintf(stderr, "(afm-main-plugin) install(%s) -> %s\n", query,
- obj ? json_object_to_json_string(obj) : "NULL");
- free(query);
-
- /* check status */
- if (obj == NULL) {
- afb_req_fail(request, "failed", "framework daemon failure");
- return;
- }
-
- /* embed if needed */
- if (json_object_object_get_ex(obj, _added_, &added))
- obj = added;
- obj = json_object_get(obj);
- obj = embed(_id_, obj);
- afb_req_success(request, obj, NULL);
-}
-
-static void uninstall(struct afb_req request)
-{
- call_appid(request, _uninstall_);
-}
-
-static const struct AFB_verb_desc_v1 verbs[] =
-{
- {_runnables_, AFB_SESSION_CHECK, runnables, "Get list of runnable applications"},
- {_detail_ , AFB_SESSION_CHECK, detail, "Get the details for one application"},
- {_start_ , AFB_SESSION_CHECK, start, "Start an application"},
- {_terminate_, AFB_SESSION_CHECK, terminate, "Terminate a running application"},
- {_stop_ , AFB_SESSION_CHECK, stop, "Stop (pause) a running application"},
- {_continue_ , AFB_SESSION_CHECK, continue_, "Continue (resume) a stopped application"},
- {_runners_ , AFB_SESSION_CHECK, runners, "Get the list of running applications"},
- {_state_ , AFB_SESSION_CHECK, state, "Get the state of a running application"},
- {_install_ , AFB_SESSION_CHECK, install, "Install an application using a widget file"},
- {_uninstall_, AFB_SESSION_CHECK, uninstall, "Uninstall an application"},
- { NULL, 0, NULL, NULL }
-};
-
-static const struct AFB_plugin plug_desc = {
- .type = AFB_PLUGIN_VERSION_1,
- .v1 = {
- .info = "Application Framework Master Service",
- .prefix = "afm-main",
- .verbs = verbs
- }
-};
-
-const struct AFB_plugin *pluginAfbV1Register(const struct AFB_interface *itf)
-{
- int rc;
- struct sd_bus *sbus;
-
- /* records the interface */
- assert (afb_interface == NULL);
- afb_interface = itf;
- event_sender = afb_daemon_get_event_sender(itf->daemon);
-
- /* creates the jbus for accessing afm-user-daemon */
- sbus = afb_daemon_get_user_bus(itf->daemon);
- if (sbus == NULL)
- return NULL;
- jbus = create_jbus(sbus, "/org/AGL/afm/user");
- if (jbus == NULL)
- return NULL;
-
- /* records the signal handler */
- rc = jbus_on_signal_s(jbus, _changed_, application_list_changed, NULL);
- if (rc < 0) {
- jbus_unref(jbus);
- return NULL;
- }
-
- return &plug_desc;
-}
-
+++ /dev/null
-/*
- Copyright (C) 2015, 2016 "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 <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <poll.h>
-#include <assert.h>
-
-#include <json-c/json.h>
-#include <systemd/sd-bus.h>
-#include <systemd/sd-bus-protocol.h>
-
-#include "utils-jbus.h"
-
-/*
- * max depth of json messages
- */
-#define MAX_JSON_DEPTH 10
-
-/*
- * errors messages generated by jbus
- */
-static const char out_of_memory_string[] = "out of memory";
-
-/*
- * structure for services
- */
-struct jservice {
- struct jservice *next; /* link to the next service */
- char *method; /* method name for the service */
- void (*oncall_s) (struct sd_bus_message *, const char *, void *);
- /* string callback */
- void (*oncall_j) (struct sd_bus_message *, struct json_object *, void *);
- /* json callback */
- void *data; /* closure data for the callbacks */
-};
-
-/*
- * structure for signals
- */
-struct jsignal {
- struct jsignal *next; /* link to the next signal */
- char *name; /* name of the expected signal */
- void (*onsignal_s) (const char *, void *);
- /* string callback */
- void (*onsignal_j) (struct json_object *, void *);
- /* json callback */
- void *data; /* closure data for the callbacks */
-};
-
-/*
- * structure for asynchronous requests
- */
-struct jrespw {
- struct jbus *jbus;
- void (*onresp_s) (int, const char *, void *);
- /* string callback */
- void (*onresp_j) (int, struct json_object *, void *);
- /* json callback */
- void *data; /* closure data for the callbacks */
-};
-
-/*
- * structure for handling either client or server jbus on dbus
- */
-struct jbus {
- int refcount; /* referenced how many time */
- struct sd_bus *sdbus;
- struct sd_bus_slot *sservice;
- struct sd_bus_slot *ssignal;
- struct json_tokener *tokener; /* string to json tokenizer */
- struct jservice *services; /* first service */
- struct jsignal *signals; /* first signal */
- char *path; /* dbus path */
- char *name; /* dbus name */
-};
-
-/*********************** STATIC COMMON METHODS *****************/
-
-static int mkerrno(int rc)
-{
- if (rc >= 0)
- return rc;
- errno = -rc;
- return -1;
-}
-
-/*
- * Replies the error "out of memory".
- * This function is intended to be used in services when an
- * allocation fails. Thus, it set errno to ENOMEM and
- * returns -1.
- */
-static inline int reply_out_of_memory(struct sd_bus_message *smsg)
-{
- jbus_reply_error_s(smsg, out_of_memory_string);
- errno = ENOMEM;
- return -1;
-}
-
-/*
- * Parses the json-string 'msg' to create a json object stored
- * in 'obj'. It uses the tokener of 'jbus'. This is a small
- * improvement to avoid recreation of tokeners.
- *
- * Returns 1 in case of success and put the result in *'obj'.
- * Returns 0 in case of error and put NULL in *'obj'.
- */
-static int jparse(struct jbus *jbus, const char *msg, struct json_object **obj)
-{
- json_tokener_reset(jbus->tokener);
- *obj = json_tokener_parse_ex(jbus->tokener, msg, -1);
- if (json_tokener_get_error(jbus->tokener) == json_tokener_success)
- return 1;
- json_object_put(*obj);
- *obj = NULL;
- return 0;
-}
-
-static int on_service_call(struct sd_bus_message *smsg, struct jbus *jbus, sd_bus_error *error)
-{
- struct jservice *service;
- const char *member, *content;
- struct json_object *obj;
-
- /* check the type */
- if (!sd_bus_message_has_signature(smsg, "s")
- || sd_bus_message_read_basic(smsg, 's', &content) < 0) {
- sd_bus_error_set_const(error, "bad signature", "");
- return 1;
- }
-
- /* dispatch */
- member = sd_bus_message_get_member(smsg);
- service = jbus->services;
- while (service != NULL) {
- if (!strcmp(service->method, member)) {
- sd_bus_message_ref(smsg);
- if (service->oncall_s)
- service->oncall_s(smsg, content, service->data);
- else if (service->oncall_j) {
- if (!jparse(jbus, content, &obj))
- obj = json_object_new_string(content);
- service->oncall_j(smsg, obj, service->data);
- json_object_put(obj);
- }
- return 1;
- }
- service = service->next;
- }
- return 0;
-}
-
-/*
- * Adds to 'jbus' a service of name 'method'. The service is
- * performed by one of the callback 'oncall_s' (for string) or
- * 'oncall_j' (for json) that will receive the request and the
- * closure parameter 'data'.
- *
- * returns 0 in case of success or -1 in case of error (ENOMEM).
- */
-static int add_service(
- struct jbus *jbus,
- const char *method,
- void (*oncall_s) (struct sd_bus_message *, const char *, void *),
- void (*oncall_j) (struct sd_bus_message *, struct json_object *, void *),
- void *data)
-{
- int rc;
- struct jservice *srv;
-
- /* connection of the service */
- if (jbus->sservice == NULL) {
- rc = sd_bus_add_object(jbus->sdbus, &jbus->sservice, jbus->path, (void*)on_service_call, jbus);
- if (rc < 0) {
- errno = -rc;
- goto error;
- }
- }
-
- /* allocation */
- srv = malloc(sizeof *srv);
- if (srv == NULL) {
- errno = ENOMEM;
- goto error;
- }
- srv->method = strdup(method);
- if (!srv->method) {
- errno = ENOMEM;
- goto error2;
- }
-
- /* record the service */
- srv->oncall_s = oncall_s;
- srv->oncall_j = oncall_j;
- srv->data = data;
- srv->next = jbus->services;
- jbus->services = srv;
-
- return 0;
-
- error2:
- free(srv);
- error:
- return -1;
-}
-
-static int on_signal_event(struct sd_bus_message *smsg, struct jbus *jbus, sd_bus_error *error)
-{
- struct jsignal *signal;
- const char *member, *content;
- struct json_object *obj;
-
- /* check the type */
- if (!sd_bus_message_has_signature(smsg, "s")
- || sd_bus_message_read_basic(smsg, 's', &content) < 0)
- return 0;
-
- /* dispatch */
- member = sd_bus_message_get_member(smsg);
- signal = jbus->signals;
- while (signal != NULL) {
- if (!strcmp(signal->name, member)) {
- if (signal->onsignal_s)
- signal->onsignal_s(content, signal->data);
- else if (signal->onsignal_j) {
- if (!jparse(jbus, content, &obj))
- obj = json_object_new_string(content);
- signal->onsignal_j(obj, signal->data);
- json_object_put(obj);
- }
- }
- signal = signal->next;
- }
- return 0;
-}
-
-/*
- * Adds to 'jbus' a handler for the signal of 'name' emmited by
- * the sender and the interface that 'jbus' is linked to.
- * The signal is handled by one of the callback 'onsignal_s'
- * (for string) or 'onsignal_j' (for json) that will receive
- * parameters associated with the signal and the closure
- * parameter 'data'.
- *
- * returns 0 in case of success or -1 in case of error (ENOMEM).
- */
-static int add_signal(
- struct jbus *jbus,
- const char *name,
- void (*onsignal_s) (const char *, void *),
- void (*onsignal_j) (struct json_object *, void *),
- void *data)
-{
- int rc;
- struct jsignal *sig;
- char *match;
-
- /* connection of the signal */
- if (jbus->ssignal == NULL) {
- rc = asprintf(&match, "type='signal',path='%s',interface='%s'", jbus->path, jbus->name);
- if (rc < 0) {
- errno = ENOMEM;
- goto error;
- }
- rc = sd_bus_add_match(jbus->sdbus, &jbus->ssignal, match, (void*)on_signal_event, jbus);
- free(match);
- if (rc < 0) {
- errno = -rc;
- goto error;
- }
- }
-
- /* allocation */
- sig = malloc(sizeof *sig);
- if (sig == NULL) {
- errno = ENOMEM;
- goto error;
- }
- sig->name = strdup(name);
- if (!sig->name) {
- errno = ENOMEM;
- goto error2;
- }
-
- /* record the signal */
- sig->onsignal_s = onsignal_s;
- sig->onsignal_j = onsignal_j;
- sig->data = data;
- sig->next = jbus->signals;
- jbus->signals = sig;
-
- return 0;
-
- error2:
- free(sig);
- error:
- return -1;
-}
-
-static int on_reply(struct sd_bus_message *smsg, struct jrespw *jrespw, sd_bus_error *error)
-{
- struct json_object *obj;
- const char *reply;
- int iserror;
-
- /* check the type */
- if (!sd_bus_message_has_signature(smsg, "s")
- || sd_bus_message_read_basic(smsg, 's', &reply) < 0) {
- sd_bus_error_set_const(error, "bad signature", "");
- goto end;
- }
- iserror = sd_bus_message_is_method_error(smsg, NULL);
-
- /* dispatch string? */
- if (jrespw->onresp_s != NULL) {
- jrespw->onresp_s(iserror, reply, jrespw->data);
- goto end;
- }
-
- /* dispatch json */
- if (!jparse(jrespw->jbus, reply, &obj))
- obj = json_object_new_string(reply);
- jrespw->onresp_j(iserror, obj, jrespw->data);
- json_object_put(obj);
-
- end:
- free(jrespw);
- return 1;
-}
-
-/*
- * Creates a message for 'method' with one string parameter being 'query'
- * and sends it to the destination, object and interface linked to 'jbus'.
- *
- * Adds to 'jbus' the response handler defined by the callbacks 'onresp_s'
- * (for string) and 'onresp_j' (for json) and the closure parameter 'data'.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-static int call(
- struct jbus *jbus,
- const char *method,
- const char *query,
- void (*onresp_s) (int, const char *, void *),
- void (*onresp_j) (int, struct json_object *, void *),
- void *data)
-{
- int rc;
- struct jrespw *resp;
-
- /* allocates the response structure */
- resp = malloc(sizeof *resp);
- if (resp == NULL) {
- errno = ENOMEM;
- goto error;
- }
-
- /* fulfill the response structure */
- resp->jbus = jbus;
- resp->onresp_s = onresp_s;
- resp->onresp_j = onresp_j;
- resp->data = data;
-
- rc = sd_bus_call_method_async(jbus->sdbus, NULL, jbus->name, jbus->path, jbus->name, method, (void*)on_reply, resp, "s", query);
- if (rc < 0) {
- errno = -rc;
- goto error2;
- }
-
- return 0;
-
- error2:
- free(resp);
- error:
- return -1;
-}
-
-/********************* MAIN FUNCTIONS *****************************************/
-
-/*
- * Creates a 'jbus' bound the 'path' and it derived names and linked
- * either to the DBUS SYSTEM when 'session' is nul or to the DBUS SESSION
- * if 'session' is not nul.
- *
- * The parameter 'path' is intended to be the path of a DBUS single object.
- * Single means that it exists only one instance of the object on the
- * given bus. That path implies 2 derived DBUS names:
- * 1. the destination name of the program that handles the object
- * 2. the interface name of the object
- * These names are derived by removing the heading slash (/) and
- * by replacing all occurences of slashes by dots.
- * For example, passing path = /a/b/c means that the object /a/b/c is
- * handled by the destination a.b.c and replies to the interface a.b.c
- *
- * Returns the created jbus or NULL in case of error.
- */
-struct jbus *create_jbus(struct sd_bus *sdbus, const char *path)
-{
- struct jbus *jbus;
- char *name;
-
- /* create the jbus object */
- jbus = calloc(1, sizeof *jbus);
- if (jbus == NULL) {
- errno = ENOMEM;
- goto error;
- }
- jbus->refcount = 1;
-
- /* create the tokener */
- jbus->tokener = json_tokener_new_ex(MAX_JSON_DEPTH);
- if (jbus->tokener == NULL) {
- errno = ENOMEM;
- goto error2;
- }
-
- /* records the path */
- jbus->path = strdup(path);
- if (jbus->path == NULL) {
- errno = ENOMEM;
- goto error2;
- }
-
- /* makes the name from the path */
- while (*path == '/')
- path++;
- jbus->name = name = strdup(path);
- if (name == NULL) {
- errno = ENOMEM;
- goto error2;
- }
- while (*name) {
- if (*name == '/')
- *name = '.';
- name++;
- }
- name--;
- while (name >= jbus->name && *name == '.')
- *name-- = 0;
- if (!*jbus->name) {
- errno = EINVAL;
- goto error2;
- }
-
- /* connect and init */
- jbus->sdbus = sd_bus_ref(sdbus);
-
- return jbus;
-
- error2:
- jbus_unref(jbus);
- error:
- return NULL;
-}
-
-/*
- * Adds one reference to 'jbus'.
- */
-void jbus_addref(struct jbus *jbus)
-{
- jbus->refcount++;
-}
-
-/*
- * Removes one reference to 'jbus'. Destroys 'jbus' and it related
- * data if the count of references decrease to zero.
- */
-void jbus_unref(struct jbus *jbus)
-{
- struct jservice *srv;
- struct jsignal *sig;
- if (!--jbus->refcount) {
- while ((srv = jbus->services) != NULL) {
- jbus->services = srv->next;
- free(srv->method);
- free(srv);
- }
- while ((sig = jbus->signals) != NULL) {
- jbus->signals = sig->next;
- free(sig->name);
- free(sig);
- }
- if (jbus->sservice != NULL)
- sd_bus_slot_unref(jbus->sservice);
- if (jbus->ssignal != NULL)
- sd_bus_slot_unref(jbus->ssignal);
- if (jbus->tokener != NULL)
- json_tokener_free(jbus->tokener);
- sd_bus_unref(jbus->sdbus);
- free(jbus->name);
- free(jbus->path);
- free(jbus);
- }
-}
-
-/*
- * Replies an error of string 'error' to the request handled by 'smsg'.
- * Also destroys the request 'smsg' that must not be used later.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_reply_error_s(struct sd_bus_message *smsg, const char *error)
-{
- int rc = sd_bus_reply_method_errorf(smsg, SD_BUS_ERROR_FAILED, "%s", error);
- sd_bus_message_unref(smsg);
- return mkerrno(rc);
-}
-
-/*
- * Replies an error of json 'reply' to the request handled by 'smsg'.
- * Also destroys the request 'smsg' that must not be used later.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_reply_error_j(struct sd_bus_message *smsg, struct json_object *reply)
-{
- const char *str = json_object_to_json_string(reply);
- return str ? jbus_reply_error_s(smsg, str) : reply_out_of_memory(smsg);
-}
-
-/*
- * Replies normally the string 'reply' to the request handled by 'smsg'.
- * Also destroys the request 'smsg' that must not be used later.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_reply_s(struct sd_bus_message *smsg, const char *reply)
-{
- int rc = sd_bus_reply_method_return(smsg, "s", reply);
- sd_bus_message_unref(smsg);
- return mkerrno(rc);
-}
-
-/*
- * Replies normally the json 'reply' to the request handled by 'smsg'.
- * Also destroys the request 'smsg' that must not be used later.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_reply_j(struct sd_bus_message *smsg, struct json_object *reply)
-{
- const char *str = json_object_to_json_string(reply);
- return str ? jbus_reply_s(smsg, str) : reply_out_of_memory(smsg);
-}
-
-/*
- * Sends from 'jbus' the signal of 'name' handling the string 'content'.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_send_signal_s(struct jbus *jbus, const char *name, const char *content)
-{
- return mkerrno(sd_bus_emit_signal(jbus->sdbus, jbus->path, jbus->name, name, "s", content));
-}
-
-/*
- * Sends from 'jbus' the signal of 'name' handling the json 'content'.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_send_signal_j(struct jbus *jbus, const char *name,
- struct json_object *content)
-{
- const char *str = json_object_to_json_string(content);
- if (str == NULL) {
- errno = ENOMEM;
- return -1;
- }
- return jbus_send_signal_s(jbus, name, str);
-}
-
-/*
- * Adds to 'jbus' a service handling calls to the 'method' using
- * the "string" callback 'oncall' and the closure value 'data'.
- *
- * The callback 'oncall' is invoked for handling incoming method
- * calls. It receives 3 parameters:
- * 1. struct sd_bus_message *: a handler to data to be used for replying
- * 2. const char *: the received string
- * 3. void *: the closure 'data' set by this function
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_add_service_s(
- struct jbus *jbus,
- const char *method,
- void (*oncall) (struct sd_bus_message *, const char *, void *),
- void *data)
-{
- return add_service(jbus, method, oncall, NULL, data);
-}
-
-/*
- * Adds to 'jbus' a service handling calls to the 'method' using
- * the "json" callback 'oncall' and the closure value 'data'.
- *
- * The callback 'oncall' is invoked for handling incoming method
- * calls. It receives 3 parameters:
- * 1. struct sd_bus_message *: a handler to data to be used for replying
- * 2. struct json_object *: the received json
- * 3. void *: the closure 'data' set by this function
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_add_service_j(
- struct jbus *jbus,
- const char *method,
- void (*oncall) (struct sd_bus_message *, struct json_object *, void *),
- void *data)
-{
- return add_service(jbus, method, NULL, oncall, data);
-}
-
-/*
- * Start to serve: activate services declared for 'jbus'.
- * This function, in fact, declares 'jbus' as the receiver
- * for calls to the destination derived from the path set at
- * 'jbus' creation.
- * It also allows 'jbus' to emit signals of that origin.
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_start_serving(struct jbus *jbus)
-{
- return mkerrno(sd_bus_request_name(jbus->sdbus, jbus->name, 0));
-}
-
-/*
- * Asynchronous call to 'method' of 'jbus' passing the string 'query'.
- * On response, the function 'onresp' is called with the returned string
- * value and the closure 'data'.
- * The function 'onresp' is invoked with 3 parameters:
- * 1. int: 0 if no error or -1 if error.
- * 2. const char *: the returned string (might be NULL if error)
- * 3. void *: the closure 'data'
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_call_ss(
- struct jbus *jbus,
- const char *method,
- const char *query,
- void (*onresp) (int, const char *, void *),
- void *data)
-{
- return call(jbus, method, query, onresp, NULL, data);
-}
-
-/*
- * Asynchronous call to 'method' of 'jbus' passing the string 'query'.
- * On response, the function 'onresp' is called with the returned json
- * value and the closure 'data'.
- * The function 'onresp' is invoked with 3 parameters:
- * 1. int: 0 if no error or -1 if error.
- * 2. const char *: the returned json (might be NULL if error)
- * 3. void *: the closure 'data'
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_call_sj(
- struct jbus *jbus,
- const char *method,
- const char *query,
- void (*onresp) (int, struct json_object *, void *),
- void *data)
-{
- return call(jbus, method, query, NULL, onresp, data);
-}
-
-/*
- * Asynchronous call to 'method' of 'jbus' passing the json 'query'.
- * On response, the function 'onresp' is called with the returned string
- * value and the closure 'data'.
- * The function 'onresp' is invoked with 3 parameters:
- * 1. int: 0 if no error or -1 if error.
- * 2. const char *: the returned string (might be NULL if error)
- * 3. void *: the closure 'data'
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_call_js(
- struct jbus *jbus,
- const char *method,
- struct json_object *query,
- void (*onresp) (int, const char *, void *),
- void *data)
-{
- const char *str = json_object_to_json_string(query);
- if (str == NULL) {
- errno = ENOMEM;
- return -1;
- }
- return call(jbus, method, str, onresp, NULL, data);
-}
-
-/*
- * Asynchronous call to 'method' of 'jbus' passing the json 'query'.
- * On response, the function 'onresp' is called with the returned json
- * value and the closure 'data'.
- * The function 'onresp' is invoked with 3 parameters:
- * 1. int: 0 if no error or -1 if error.
- * 2. const char *: the returned json (might be NULL if error)
- * 3. void *: the closure 'data'
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-int jbus_call_jj(
- struct jbus *jbus,
- const char *method,
- struct json_object *query,
- void (*onresp) (int, struct json_object *, void *),
- void *data)
-{
- const char *str = json_object_to_json_string(query);
- if (str == NULL) {
- errno = ENOMEM;
- return -1;
- }
- return call(jbus, method, str, NULL, onresp, data);
-}
-
-/*
- * Synchronous call to 'method' of 'jbus' passing the string 'query'.
- * The returned string response is returned.
- *
- * Returns the string response or NULL in case of error.
- */
-char *jbus_call_ss_sync(
- struct jbus *jbus,
- const char *method,
- const char *query)
-{
- sd_bus_message *smsg = NULL;
- sd_bus_error error = SD_BUS_ERROR_NULL;
- char *result = NULL;
- const char *reply;
-
- /* makes the call */
- if (mkerrno(sd_bus_call_method(jbus->sdbus, jbus->name, jbus->path, jbus->name, method, &error, &smsg, "s", query)) < 0)
- goto error;
-
- /* check if error */
- if (sd_bus_message_is_method_error(smsg, NULL))
- goto error;
-
- /* check the returned type */
- if (!sd_bus_message_has_signature(smsg, "s")
- || sd_bus_message_read_basic(smsg, 's', &reply) < 0)
- goto error;
-
- /* get the result */
- result = strdup(reply);
-
-error:
- sd_bus_message_unref(smsg);
- sd_bus_error_free(&error);
- return result;
-}
-
-/*
- * Synchronous call to 'method' of 'jbus' passing the string 'query'.
- * The returned json response is returned.
- *
- * Returns the json response or NULL in case of error.
- */
-struct json_object *jbus_call_sj_sync(
- struct jbus *jbus,
- const char *method,
- const char *query)
-{
- struct json_object *obj;
- char *str = jbus_call_ss_sync(jbus, method, query);
- if (str == NULL)
- obj = NULL;
- else {
- jparse(jbus, str, &obj);
- free(str);
- }
- return obj;
-}
-
-/*
- * Synchronous call to 'method' of 'jbus' passing the json 'query'.
- * The returned string response is returned.
- *
- * Returns the string response or NULL in case of error.
- */
-char *jbus_call_js_sync(
- struct jbus *jbus,
- const char *method,
- struct json_object *query)
-{
- const char *str = json_object_to_json_string(query);
- if (str == NULL) {
- errno = ENOMEM;
- return NULL;
- }
- return jbus_call_ss_sync(jbus, method, str);
-}
-
-/*
- * Synchronous call to 'method' of 'jbus' passing the json 'query'.
- * The returned json response is returned.
- *
- * Returns the json response or NULL in case of error.
- */
-struct json_object *jbus_call_jj_sync(
- struct jbus *jbus,
- const char *method,
- struct json_object *query)
-{
- const char *str = json_object_to_json_string(query);
- if (str == NULL) {
- errno = ENOMEM;
- return NULL;
- }
- return jbus_call_sj_sync(jbus, method, str);
-}
-
-/*
- * Records for 'jbus' the string signal handler 'onsig' with closure 'data'
- * for the signal of 'name'.
- * The callback handler is called with 2 arguments:
- * 1. char *: the string parameter associated to the signal
- * 2. void *: the closure data.
- *
- * Returns 0 in case of success or -1 otherwise.
- */
-int jbus_on_signal_s(
- struct jbus *jbus,
- const char *name,
- void (*onsig) (const char *, void *),
- void *data)
-{
- return add_signal(jbus, name, onsig, NULL, data);
-}
-
-/*
- * Records for 'jbus' the json signal handler 'onsig' with closure 'data'
- * for the signal of 'name'.
- * The callback handler is called with 2 arguments:
- * 1. struct json_object *: the json parameter associated to the signal
- * 2. void *: the closure data.
- *
- * Returns 0 in case of success or -1 otherwise.
- */
-int jbus_on_signal_j(
- struct jbus *jbus,
- const char *name,
- void (*onsig) (struct json_object *, void *),
- void *data)
-{
- return add_signal(jbus, name, NULL, onsig, data);
-}
-
-/****************** FEW LITTLE TESTS *****************************************/
-
-#if defined(SERVER)||defined(CLIENT)
-#include <stdio.h>
-#include <unistd.h>
-
-static struct sd_bus *msbus()
-{
- static struct sd_bus *r = NULL;
- if (r == NULL) {
- static sd_event *e;
- sd_event_default(&e);
- sd_bus_open_user(&r);
- sd_bus_attach_event(r, e, 0);
- }
- return r;
-}
-
-static sd_event *events()
-{
- static sd_event *ev = NULL;
- if (ev == NULL)
- ev = sd_bus_get_event(msbus());
- return ev;
-}
-
-static int mwait(int timeout, void *closure)
-{
- sd_event_run(events(), -1);
- return 0;
-}
-
-static struct jbus *jbus;
-
-#ifdef SERVER
-void ping(struct sd_bus_message *smsg, struct json_object *request, void *unused)
-{
- printf("ping(%s) -> %s\n", json_object_to_json_string(request),
- json_object_to_json_string(request));
- jbus_reply_j(smsg, request);
- json_object_put(request);
-}
-
-void incr(struct sd_bus_message *smsg, struct json_object *request, void *unused)
-{
- static int counter = 0;
- struct json_object *res = json_object_new_int(++counter);
- printf("incr(%s) -> %s\n", json_object_to_json_string(request),
- json_object_to_json_string(res));
- jbus_reply_j(smsg, res);
- jbus_send_signal_j(jbus, "incremented", res);
- json_object_put(res);
- json_object_put(request);
-}
-
-int main()
-{
- int s1, s2, s3;
- jbus = create_jbus(msbus(), "/bzh/iot/jdbus");
- s1 = jbus_add_service_j(jbus, "ping", ping, NULL);
- s2 = jbus_add_service_j(jbus, "incr", incr, NULL);
- s3 = jbus_start_serving(jbus);
- printf("started %d %d %d\n", s1, s2, s3);
- while (!mwait(-1,jbus)) ;
- return 0;
-}
-#endif
-
-#ifdef CLIENT
-void onresp(int status, struct json_object *response, void *data)
-{
- printf("resp: %d, %s, %s\n", status, (char *)data,
- json_object_to_json_string(response));
- json_object_put(response);
-}
-
-void signaled(const char *content, void *data)
-{
- printf("signaled with {%s}/%s\n", content, (char*)data);
-}
-
-int main()
-{
- int i = 1;
- jbus = create_jbus(msbus(), "/bzh/iot/jdbus");
- jbus_on_signal_s(jbus, "incremented", signaled, "closure-signal");
- while (i--) {
- jbus_call_sj(jbus, "ping", "{\"toto\":[1,2,3,4,true,\"toto\"]}",
- onresp, "ping");
- jbus_call_sj(jbus, "incr", "{\"doit\":\"for-me\"}", onresp,
- "incr");
- mwait(-1,jbus);
- }
- printf("[[[%s]]]\n",
- jbus_call_ss_sync(jbus, "ping", "\"formidable!\""));
- while (!mwait(-1,jbus)) ;
- return 0;
-}
-#endif
-#endif
-
Code Review / src / app-framework-binder.git / commitdiff