1 /* Copyright (c) 2008-2016. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #define FILENAME1 "/home/doc/simgrid/examples/platforms/g5k.xml"
7 #define FILENAME2 "c:\\Windows\\setupact.log"
8 #define FILENAME3 "/home/doc/simgrid/examples/platforms/g5k_cabinets.xml"
9 #define FILENAME4 "/home/doc/simgrid/examples/platforms/nancy.xml"
11 #include "simgrid/msg.h"
13 XBT_LOG_NEW_DEFAULT_CATEGORY(io_file, "Messages specific for this io example");
15 static int host(int argc, char *argv[])
17 msg_file_t file = NULL;
23 switch(MSG_process_self_PID()){
25 file = MSG_file_open(FILENAME1, NULL);
30 file = MSG_file_open(FILENAME2, NULL);
34 file = MSG_file_open(FILENAME3, NULL);
38 file = MSG_file_open(FILENAME4, NULL);
42 xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
45 const char* filename = MSG_file_get_name(file);
46 XBT_INFO("\tOpen file '%s'",filename);
47 st = MSG_storage_get_by_name(st_name);
49 XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
50 filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
52 /* Try to read for 10MB */
53 read = MSG_file_read(file, 10000000);
54 XBT_INFO("\tHave read %llu from '%s'",read,filename);
56 /* Write 100KB in file from the current position, i.e, end of file or 10MB */
57 write = MSG_file_write(file, 100000);
58 XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu",write,filename, MSG_file_get_size(file));
61 XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
62 filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
64 /* rewind to the beginning of the file */
65 XBT_INFO("\tComing back to the beginning of the stream for file '%s'", filename);
66 MSG_file_seek(file, 0, SEEK_SET);
68 /* Try to read 110KB */
69 read = MSG_file_read(file, 110000);
70 XBT_INFO("\tHave read %llu from '%s' (of size %llu)",read,filename, MSG_file_get_size(file));
72 /* rewind once again to the beginning of the file */
73 XBT_INFO("\tComing back to the beginning of the stream for file '%s'", filename);
74 MSG_file_seek(file, 0, SEEK_SET);
76 /* Write 110KB in file from the current position, i.e, end of file or 10MB */
77 write = MSG_file_write(file, 110000);
78 XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu", write,filename, MSG_file_get_size(file));
80 XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
81 filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
83 if (MSG_process_self_PID() == 1){
84 XBT_INFO("\tUnlink file '%s'",MSG_file_get_name(file));
85 MSG_file_unlink(file);
87 XBT_INFO("\tClose file '%s'",filename);
93 int main(int argc, char **argv)
95 MSG_init(&argc, argv);
96 MSG_create_environment(argv[1]);
97 xbt_dynar_t hosts = MSG_hosts_as_dynar();
98 MSG_function_register("host", host);
99 unsigned long nb_hosts = xbt_dynar_length(hosts);
100 XBT_INFO("Number of host '%lu'",nb_hosts);
101 for(int i = 0 ; i < nb_hosts; i++){
102 MSG_process_create("host", host, NULL, xbt_dynar_get_as(hosts,i,msg_host_t));
104 xbt_dynar_free(&hosts);
106 int res = MSG_main();
107 XBT_INFO("Simulation time %g", MSG_get_clock());
108 return res != MSG_OK;