/*
* Copyright (c) 2006 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup fs
* @{
*/
/**
* @file fs.c
* @brief File system driver for HelenOS.
*/
#include <ipc/ipc.h>
#include <ipc/services.h>
#include <ipc/ns.h>
#include <sysinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <as.h>
#include <ddi.h>
#include <align.h>
#include <bool.h>
#include <errno.h>
#include <async.h>
#include "fs.h"
static void fs_connection(ipc_callid_t iid, ipc_call_t *icall)
{
ipc_callid_t callid;
ipc_call_t call;
int retval;
ipc_answer_fast(iid, 0, 0, 0);
while (1) {
callid = async_get_call(&call);
switch (IPC_GET_METHOD(call)) {
case IPC_M_PHONE_HUNGUP:
ipc_answer_fast(callid, 0,0,0);
return;
case FS_OPEN:
//Why doesn't printf do anything in this task?
char * f_name = (char *) IPC_GET_ARG1(call);
printf("I should open file: %s \n",f_name
);
retval = 73;
break;
case FS_READ:
unsigned int file_handle = IPC_GET_ARG1(call);
void * buffer = (void *) IPC_GET_ARG2(call);
unsigned int count = IPC_GET_ARG3(call);
//I still don't know how to copy memory to another task :(
//Or can i only map memory?
retval = 0;
break;
default:
retval = EINVAL;
}
ipc_answer_fast(callid, retval, 0, 0);
}
}
static bool fs_init(void)
{
return true;
}
int main(int argc, char **argv)
{
if (fs_init()) {
ipcarg_t phonead;
async_set_client_connection(fs_connection);
/* Register service at nameserver */
if (ipc_connect_to_me(PHONE_NS, SERVICE_FS, 0, &phonead) != 0)
return -1;
async_manager();
/* Never reached */
return 0;
}
return -1;
}
/**
* @}
*/