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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2006 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Martin Decky |
| 2006 | decky | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup fs |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | |||
| 33 | /** |
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| 34 | * @file fs.c |
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| 35 | * @brief File system driver for HelenOS. |
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| 36 | */ |
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| 37 | |||
| 2248 | jelen | 38 | #include <ipc/ipc.h> |
| 39 | #include <ipc/services.h> |
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| 40 | #include <ipc/ns.h> |
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| 41 | #include <sysinfo.h> |
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| 42 | #include <stdio.h> |
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| 43 | #include <stdlib.h> |
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| 44 | #include <as.h> |
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| 45 | #include <ddi.h> |
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| 46 | #include <align.h> |
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| 47 | #include <bool.h> |
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| 48 | #include <errno.h> |
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| 49 | #include <async.h> |
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| 50 | #include "fs.h" |
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| 2006 | decky | 51 | |
| 2248 | jelen | 52 | |
| 53 | static void fs_connection(ipc_callid_t iid, ipc_call_t *icall) |
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| 54 | { |
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| 55 | ipc_callid_t callid; |
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| 56 | ipc_call_t call; |
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| 57 | int retval; |
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| 58 | |||
| 59 | ipc_answer_fast(iid, 0, 0, 0); |
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| 60 | |||
| 61 | while (1) { |
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| 62 | callid = async_get_call(&call); |
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| 63 | switch (IPC_GET_METHOD(call)) { |
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| 64 | case IPC_M_PHONE_HUNGUP: |
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| 65 | ipc_answer_fast(callid, 0,0,0); |
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| 66 | return; |
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| 67 | case FS_OPEN: |
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| 68 | //Why doesn't printf do anything in this task? |
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| 69 | printf("FS_OPEN called"); |
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| 70 | char * f_name = (char *) IPC_GET_ARG1(call); |
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| 71 | printf("I should open file: %s \n",f_name); |
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| 72 | retval = 73; |
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| 73 | break; |
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| 74 | case FS_READ: |
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| 75 | printf("FS_READ called"); |
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| 76 | unsigned int file_handle = IPC_GET_ARG1(call); |
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| 77 | void * buffer = (void *) IPC_GET_ARG2(call); |
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| 78 | unsigned int count = IPC_GET_ARG3(call); |
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| 79 | //I still don't know how to copy memory to another task :( |
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| 80 | //Or can i only map memory? |
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| 81 | retval = 0; |
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| 82 | break; |
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| 83 | default: |
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| 84 | retval = EINVAL; |
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| 85 | } |
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| 86 | ipc_answer_fast(callid, retval, 0, 0); |
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| 87 | } |
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| 88 | } |
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| 89 | |||
| 90 | |||
| 91 | static bool fs_init(void) |
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| 92 | { |
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| 93 | |||
| 94 | return true; |
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| 95 | } |
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| 96 | |||
| 2006 | decky | 97 | int main(int argc, char **argv) |
| 98 | { |
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| 2248 | jelen | 99 | if (fs_init()) { |
| 100 | ipcarg_t phonead; |
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| 101 | |||
| 102 | async_set_client_connection(fs_connection); |
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| 103 | |||
| 104 | /* Register service at nameserver */ |
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| 105 | if (ipc_connect_to_me(PHONE_NS, SERVICE_FS, 0, &phonead) != 0) |
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| 106 | return -1; |
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| 107 | |||
| 108 | async_manager(); |
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| 109 | |||
| 110 | /* Never reached */ |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |||
| 114 | return -1; |
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| 2006 | decky | 115 | } |
| 116 | |||
| 117 | /** |
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| 118 | * @} |
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| 119 | */ |