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/**
* @file ipc_client.c
* @brief client part using ipc methods
* Copyright (c) 2017 Samsung Electronics Co., Ltd.
* This software is the confidential and proprietary information
* of Samsung Electronics, Inc. ("Confidential Information"). You
* shall not disclose such Confidential Information and shall use
* it only in accordance with the terms of the license agreement
* you entered into with Samsung.
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
#include "json_util.h"
#include "ipc.h"
#include "ipc_client.h"
#include "ipc_config.h"
/**
* @fn static int __client_open_connection(char *server, SOCKET_HANDLE* phndl)
* @brief This function to open connection for client
* @param *server [in] server information
* @param *phndl [in] socket handle
* @return int result of function
*/
static int __client_open_connection(char *server, SOCKET_HANDLE* phndl)
{
int ret = 0;
printf("<<Client>> __client_open_connection\n");
ret = IPC_OpenClientConnection(server, phndl);
if (0 == ret) {
printf("<<Client>> phndl->client_h = %d\n", phndl->client_h);
} else {
printf("<<Client>> connection_init ERROR(%d) !!! {%s}\n", ret, SERVER);
}
return ret;
}
/**
* @fn static int __client_close_connection(SOCKET_HANDLE* phndl)
* @brief This function to close connection for client
* @param *phndl [in] socket handle
* @return int result of function
*/
static int __client_close_connection(SOCKET_HANDLE* phndl)
{
int ret = 0;
printf("<<Client>> __client_close_connection(*hndl=%p)\n", phndl);
if (phndl)
ret = IPC_OpenClientClose(phndl);
return ret;
}
/**
* @fn static int __client_send_data(void* data, int size, SOCKET_HANDLE* phndl)
* @brief This function to send data in client side
* @param *data [in] data to send
* @param *size [in] size of data
* @param *phndl [in] socket handle
* @return int result of function
*/
static int __client_send_data(void* data, int size, SOCKET_HANDLE* phndl)
{
int ret = 0;
printf("<<Client>> __client_send_data(*hndl=%p)\n", phndl);
if (phndl) {
ret = IPC_SendMessage(phndl, data, size);
printf("<<Client>> IPC_SendMessage(ret=%d)\n", ret);
} else {
ret = -1;
}
return ret;
}
/**
* @fn static int __client_read__data(char** data, SOCKET_HANDLE* phndl)
* @brief This function to send data in client side
* @param **data [inout] buffter to copy for reading data
* @param *phndl [in] socket handle
* @return int result of function
*/
static int __client_read__data(char** data, SOCKET_HANDLE* phndl)
{
int ret = 0;
int msg_size = 0;
char *buf = NULL;
printf("<<Client>> __client_read__data(*hndl=%p) waiting...\n", phndl);
if (phndl) {
// read first message : data size
ret = IPC_GetMessage(phndl, &msg_size);
printf("<<Client>> IPC_GendMessage(ret=%d) : SIZE(%d)\n", ret, msg_size);
if (msg_size > 0) {
buf = (char *)malloc(msg_size +1);
memset(buf, 0x00, msg_size+1);
// read second message : real data buffer
ret = IPC_RecvMessage(phndl, buf, msg_size);
printf("<<Client>> IPC_GendMessage(ret=%d) : DATA=\n%s\n", ret, buf);
*data = buf;
}
} else {
ret = -1;
}
return ret;
}
static pthread_t callback_thread = (pthread_t) NULL;
/**
* @fn static char * __client_callback_thread(void * pv)
* @brief This function to wait response when a API calls
* @param *pv
* @return void * result of function
*/
static void * __client_callback_thread(void * pv)
{
SOCKET_HANDLE* cbhndl = NULL;
SOCKET_HANDLE* pcbhndl = NULL;
int ret = 0;
char *buf = NULL;
char *data = NULL;
if (NULL == pcbhndl) {
printf("<<Client-CB>> __client_callback_thread\n");
cbhndl = (SOCKET_HANDLE*)malloc(sizeof(struct _IPC_SOCKET_HANDLE_s));
if (cbhndl == NULL)
return NULL;
ret = __client_open_connection(EVENT_SERVER, cbhndl);
if (0 == ret) {
pcbhndl = cbhndl;
printf("<<Client-CB>> pcbhndl->server_h = %d\n", pcbhndl->server_h);
printf("<<Client-CB>> pcbhndl->client_h = %d\n", pcbhndl->client_h);
do {
ret = __client_read__data(&buf, cbhndl);
if (0 == ret && buf) {
printf("<<Client-CB>> receive {%s}\n", buf);
////////////////////////////////////////////////
// TO-DO return real callback function~~~
////////////////////////////////////////////////
typedef int(*func)(char*);
data = json_getObject(buf, "callback_api");
printf("<<Client-CB>> callback_api=%p\n", data);
if (data) {
(*(func)data)(buf);
free(data);
}
//(*(container_update_cb)token->callback_wrap)(NULL, user_data);
////////////////////////////////////////////////
free(buf);
buf = NULL;
} else {
if (buf) {
free(buf);
buf = NULL;
}
printf("<<Client-CB>> callback receive ERROR!! (ret=%d)\n", ret);
break;
}
} while (1);
} else {
printf("<<Client-CB>> __client_callback_thread ERROR(%d) !!! {%s}\n", ret, EVENT_SERVER);
}
}
callback_thread = (pthread_t)NULL;
__client_close_connection(cbhndl);
if (cbhndl != NULL)
free(cbhndl);
return NULL;
}
int IPC_CallFunction(char * data, int size, char **retbuf)
{
//SOCKET_HANDLE hndl = {0, 0}; //socket handle is allocated for each function call
SOCKET_HANDLE *hndl = NULL;
char *buf = NULL;
int ret = 0;
//char *data;
hndl = (SOCKET_HANDLE *)malloc(sizeof(struct _IPC_SOCKET_HANDLE_s));
if (hndl == NULL)
return -1;
/*
if ((pthread_t)NULL == callback_thread) {
if (pthread_create(&callback_thread, NULL, &__client_callback_thread, NULL) < 0) {
printf("<<Client>> __client_callback_thread thread create error\n");
free(hndl);
return -1;
}
}
*/
ret = __client_open_connection(SERVER, hndl);
if (0 == ret) {
ret = __client_send_data(data, strlen(data), hndl);
if (0 == ret)
ret = __client_read__data(&buf, hndl);
} else {
printf("<<Client>> server connection error !!\n");
ret = -1;
}
if (buf)
*retbuf = buf;
__client_close_connection(hndl);
if (hndl != NULL)
free(hndl);
return ret;
}
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