diff options
Diffstat (limited to 'src/utility_service.c')
| -rw-r--r-- | src/utility_service.c | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/utility_service.c b/src/utility_service.c new file mode 100644 index 0000000..0b7367d --- /dev/null +++ b/src/utility_service.c @@ -0,0 +1,298 @@ +/* + * Copyright 2013 Samsung Electronics Co., Ltd + * + * Licensed under the Flora License, Version 1.1 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://floralicense.org/license/ + * + * 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. + */ +#include <stdio.h> + +#include <Eina.h> + +#include <dlog.h> +#include <aul.h> + +#include <livebox-errno.h> +#include <packet.h> + +#include "service_common.h" +#include "utility_service.h" +#include "debug.h" +#include "util.h" +#include "conf.h" + +#define UTILITY_ADDR "/tmp/.utility.service" +#define SVC_PKG "org.tizen.data-provider-slave.icon" +#define LAUNCH_TIMEOUT 10.0f + +static struct info { + Eina_List *pending_list; + Eina_List *context_list; + struct service_context *svc_ctx; + + struct tcb *svc_daemon; + pid_t svc_pid; + + struct service_event_item *launch_timer; +} s_info = { + .pending_list = NULL, + .context_list = NULL, /*!< \WARN: This is only used for SERVICE THREAD */ + .svc_ctx = NULL, /*!< \WARN: This is only used for MAIN THREAD */ + + .svc_daemon = NULL, + .svc_pid = -1, + + .launch_timer = NULL, +}; + +struct pending_item { + struct tcb *tcb; + struct packet *packet; +}; + +struct context { + struct tcb *tcb; + double seq; +}; + +static inline int put_reply_tcb(struct tcb *tcb, double seq) +{ + struct context *ctx; + + ctx = malloc(sizeof(*ctx)); + if (!ctx) { + ErrPrint("Heap: %s\n", strerror(errno)); + return LB_STATUS_ERROR_MEMORY; + } + + ctx->tcb = tcb; + ctx->seq = seq; + + s_info.context_list = eina_list_append(s_info.context_list, ctx); + return LB_STATUS_SUCCESS; +} + +static inline struct tcb *get_reply_tcb(double seq) +{ + Eina_List *l; + Eina_List *n; + struct context *ctx; + struct tcb *tcb; + + EINA_LIST_FOREACH_SAFE(s_info.context_list, l, n, ctx) { + if (ctx->seq != seq) + continue; + + s_info.context_list = eina_list_remove(s_info.context_list, ctx); + tcb = ctx->tcb; + free(ctx); + return tcb; + } + + return NULL; +} + +static inline int flush_pended_request(void) +{ + /*! + * Flush all pended requests + */ + struct pending_item *item; + int ret; + + EINA_LIST_FREE(s_info.pending_list, item) { + ret = service_common_unicast_packet(s_info.svc_daemon, item->packet); + if (ret < 0) { + struct packet *reply; + reply = packet_create_reply(item->packet, "i", ret); + if (service_common_unicast_packet(item->tcb, reply) < 0) + ErrPrint("Unable to send packet\n"); + packet_destroy(reply); + } else { + put_reply_tcb(item->tcb, packet_seq(item->packet)); + } + packet_unref(item->packet); + free(item); + } + + return 0; +} + +static inline int put_pended_request(struct tcb *tcb, struct packet *packet) +{ + struct pending_item *item; + + item = malloc(sizeof(*item)); + if (!item) { + ErrPrint("Heap: %s\n", strerror(errno)); + return LB_STATUS_ERROR_MEMORY; + } + + item->tcb = tcb; + item->packet = packet_ref(packet); + if (!item->packet) { + free(item); + ErrPrint("Unable to ref packet\n"); + return LB_STATUS_ERROR_FAULT; + } + + s_info.pending_list = eina_list_append(s_info.pending_list, item); + return 0; +} + +static int launch_timeout_cb(struct service_context *svc_ctx, void *data) +{ + struct pending_item *item; + struct packet *reply; + + EINA_LIST_FREE(s_info.pending_list, item) { + reply = packet_create_reply(item->packet, "i", -EFAULT); + if (!reply) { + ErrPrint("Unable to create a packet\n"); + } else { + int ret; + + ret = service_common_unicast_packet(item->tcb, reply); + if (ret < 0) + ErrPrint("Failed to send reply packet: %d\n", ret); + + packet_destroy(reply); + } + + packet_unref(item->packet); + free(item); + } + + s_info.launch_timer = NULL; + return -ECANCELED; /* Delete this timer */ +} + +static int service_thread_main(struct tcb *tcb, struct packet *packet, void *data) +{ + struct packet *reply; + const char *cmd; + int ret; + + if (!packet) { + DbgPrint("TCB %p is terminated\n", tcb); + + if (tcb == s_info.svc_daemon) { + s_info.svc_daemon = NULL; + s_info.svc_pid = -1; + } + + return 0; + } + + cmd = packet_command(packet); + if (!cmd) { + ErrPrint("Invalid packet\n"); + return LB_STATUS_ERROR_INVALID; + } + + switch (packet_type(packet)) { + case PACKET_REQ: + if (s_info.svc_pid < 0) { + s_info.svc_pid = aul_launch_app(SVC_PKG, NULL); + if (s_info.svc_pid > 0) { + s_info.launch_timer = service_common_add_timer(tcb_svc_ctx(tcb), LAUNCH_TIMEOUT, launch_timeout_cb, NULL); + if (!s_info.launch_timer) + ErrPrint("Unable to create launch timer\n"); + } + } + + if (s_info.svc_pid < 0) { + ErrPrint("Failed to launch an app: %s(%d)\n", SVC_PKG, s_info.svc_pid); + ret = LB_STATUS_ERROR_FAULT; + goto reply_out; + } else if (!s_info.svc_daemon) { + ret = put_pended_request(tcb, packet); + if (ret < 0) + goto reply_out; + } else { + ret = service_common_unicast_packet(s_info.svc_daemon, packet); + if (ret <0) + goto reply_out; + + put_reply_tcb(tcb, packet_seq(packet)); + } + + break; + case PACKET_REQ_NOACK: + if (!strcmp(cmd, "service_register")) { + if (s_info.svc_daemon) { + ErrPrint("Service daemon is already prepared\n"); + return LB_STATUS_ERROR_INVALID; + } + + if (s_info.launch_timer) { + service_common_del_timer(tcb_svc_ctx(tcb), s_info.launch_timer); + s_info.launch_timer = NULL; + } + + s_info.svc_daemon = tcb; + flush_pended_request(); + } + break; + case PACKET_ACK: + tcb = get_reply_tcb(packet_seq(packet)); + if (!tcb) { + ErrPrint("Unable to find reply tcb\n"); + } else { + ret = service_common_unicast_packet(tcb, packet); + if (ret < 0) + ErrPrint("Unable to forward the reply packet\n"); + } + break; + default: + ErrPrint("Packet type is not valid[%s]\n", cmd); + return LB_STATUS_ERROR_INVALID; + } + + return LB_STATUS_SUCCESS; + +reply_out: + ErrPrint("Error: %d\n", ret); + reply = packet_create_reply(packet, "i", ret); + if (service_common_unicast_packet(tcb, reply) < 0) + ErrPrint("Unable to send reply packet\n"); + packet_destroy(reply); + return ret; +} + +int utility_service_init(void) +{ + if (s_info.svc_ctx) { + ErrPrint("Already initialized\n"); + return LB_STATUS_ERROR_ALREADY; + } + + s_info.svc_ctx = service_common_create(UTILITY_ADDR, service_thread_main, NULL); + if (!s_info.svc_ctx) { + ErrPrint("Unable to activate service thread\n"); + return LB_STATUS_ERROR_FAULT; + } + + DbgPrint("Successfully initiated\n"); + return LB_STATUS_SUCCESS; +} + +int utility_service_fini(void) +{ + if (!s_info.svc_ctx) + return LB_STATUS_ERROR_INVALID; + + service_common_destroy(s_info.svc_ctx); + DbgPrint("Successfully Finalized\n"); + return LB_STATUS_SUCCESS; +} + +/* End of a file */ |