3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 #define ENSC_WRAPPERS_PREFIX "vsched: "
32 #define ENSC_WRAPPERS_VSERVER 1
33 #define ENSC_WRAPPERS_UNISTD 1
36 #define CMD_HELP 0x1000
37 #define CMD_VERSION 0x1001
38 #define CMD_XID 0x4000
39 #define CMD_FRATE 0x4001
40 #define CMD_INTERVAL 0x4002
41 #define CMD_TOKENS 0x4003
42 #define CMD_TOK_MIN 0x4004
43 #define CMD_TOK_MAX 0x4005
44 #define CMD_CPU_MASK 0x4006
45 #define CMD_PRIO_BIAS 0x4007
47 int wrapper_exit_code = 255;
51 { "help", no_argument, 0, CMD_HELP },
52 { "version", no_argument, 0, CMD_VERSION },
53 { "ctx", required_argument, 0, CMD_XID },
54 { "xid", required_argument, 0, CMD_XID },
55 { "fill-rate", required_argument, 0, CMD_FRATE },
56 { "interval", required_argument, 0, CMD_INTERVAL },
57 { "tokens", required_argument, 0, CMD_TOKENS },
58 { "tokens_min", required_argument, 0, CMD_TOK_MIN },
59 { "tokens-min", required_argument, 0, CMD_TOK_MIN },
60 { "tokens_max", required_argument, 0, CMD_TOK_MAX },
61 { "tokens-max", required_argument, 0, CMD_TOK_MAX },
62 { "prio_bias", required_argument, 0, CMD_PRIO_BIAS },
63 { "prio-bias", required_argument, 0, CMD_PRIO_BIAS },
64 { "priority_bias", required_argument, 0, CMD_PRIO_BIAS },
65 { "priority-bias", required_argument, 0, CMD_PRIO_BIAS },
66 { "cpu_mask", required_argument, 0, CMD_CPU_MASK },
71 showHelp(int fd, char const *cmd, int res)
73 VSERVER_DECLARE_CMD(cmd);
75 WRITE_MSG(fd, "Usage:\n ");
78 " [--xid <xid>] [--fill-rate <rate>] [--interval <interval>] [--tokens <tokens>] [--tokens-min <tokens>] [--tokens-max <tokens>] [--prio-bias <bias>] [--] [<command> <args>*]\n"
80 "Please report bugs to " PACKAGE_BUGREPORT "\n");
89 "vsched " VERSION " -- modifies scheduling parameters\n"
90 "This program is part of " PACKAGE_STRING "\n\n"
91 "Copyright (C) 2003,2004 Enrico Scholz\n"
92 VERSION_COPYRIGHT_DISCLAIMER);
96 #define SETVAL(ATTR,MASK) \
97 sched.ATTR = atoi(optarg); \
98 sched.set_mask |= MASK;
100 int main(int argc, char *argv[])
102 xid_t xid = VC_NOCTX;
103 struct vc_set_sched sched = {
108 int c = getopt_long(argc, argv, "+", CMDLINE_OPTIONS, 0);
112 case CMD_HELP : showHelp(1, argv[0], 0);
113 case CMD_VERSION : showVersion();
114 case CMD_XID : xid = Evc_xidopt2xid(optarg,true); break;
115 case CMD_FRATE : SETVAL(fill_rate, VC_VXSM_FILL_RATE); break;
116 case CMD_INTERVAL : SETVAL(interval, VC_VXSM_INTERVAL); break;
117 case CMD_TOKENS : SETVAL(tokens, VC_VXSM_TOKENS); break;
118 case CMD_TOK_MIN : SETVAL(tokens_min, VC_VXSM_TOKENS_MIN); break;
119 case CMD_TOK_MAX : SETVAL(tokens_max, VC_VXSM_TOKENS_MAX); break;
120 case CMD_PRIO_BIAS: SETVAL(priority_bias, VC_VXSM_PRIO_BIAS); break;
122 WRITE_MSG(2, "vsched: WARNING: the '--cpu_mask' parameter is deprecated and will not have any effect\n");
125 WRITE_MSG(2, "Try '");
126 WRITE_STR(2, argv[0]);
127 WRITE_MSG(2, " --help\" for more information.\n");
133 if (xid==VC_NOCTX && optind==argc) {
134 WRITE_MSG(2, "Without a program, '--xid' must be used; try '--help' for more information\n");
135 exit(wrapper_exit_code);
138 if (sched.set_mask==0 && optind==argc) {
139 WRITE_MSG(2, "Neither an option nor a program was specified; try '--help' for more information\n");
140 exit(wrapper_exit_code);
144 xid = Evc_get_task_xid(0);
146 if (sched.set_mask!=0 && vc_set_sched(xid, &sched)==-1) {
147 perror("vc_set_sched()");
152 EexecvpD(argv[optind],argv+optind);