1 /* 2 * A dataspace server exposing files each as a block of writable memory. 3 * 4 * Copyright (C) 2020, 2021 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include <l4/sys/err.h> 23 24 #include <ipc/thread.h> 25 26 #include <stdio.h> 27 #include <stdlib.h> 28 29 #include <mem/memory_incremental.h> 30 #include <fsserver/page_queue_shared.h> 31 #include <fsserver/pages.h> 32 #include <fsserver/resource_server.h> 33 #include <fsserver/block_file_opener.h> 34 35 36 37 /* Default number of pages for files. */ 38 39 const unsigned int MEMORY_PAGES = 20; 40 41 42 43 /* Server program. */ 44 45 int main(int argc, char *argv[]) 46 { 47 long err; 48 49 /* Introduce concurrency control. */ 50 51 err = ipc_thread_init(); 52 53 if (err) 54 { 55 printf("Initialisation error: %s\n", l4sys_errtostr(err)); 56 return 1; 57 } 58 59 unsigned int memory_pages = MEMORY_PAGES; 60 61 if (argc > 1) 62 memory_pages = atoi(argv[1]); 63 64 /* Some memory plus infrastructure. */ 65 66 MemoryIncremental mem(memory_pages); 67 PageQueueShared queue; 68 Pages pages(&mem, &queue); 69 ResourceRegistry registry(&pages); 70 BlockFileOpener opener(®istry); 71 72 /* Register a server associating it with the given object. */ 73 74 const char *server_name = (argc > 2) ? argv[2] : "server"; 75 76 ResourceServer server(&opener); 77 err = server.bind(server_name); 78 79 if (err) 80 { 81 printf("Could not bind server: %s\n", l4sys_errtostr(err)); 82 return 1; 83 } 84 85 printf("Starting server using %d pages...\n", memory_pages); 86 server.start(); 87 return 0; 88 } 89 90 // vim: tabstop=2 expandtab shiftwidth=2