/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2017, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* dispatch.c: Actually execute the command given
- *
+ *
* Known contributors to this file:
* Dave Pare, 1994
* Steve McClure, 1998
+ * Markus Armbruster, 2007-2014
*/
-#include "prototypes.h"
-#include "misc.h"
-#include "player.h"
+#include <config.h>
+
+#include "chance.h"
#include "com.h"
-#include "user.h"
+#include "empio.h"
+#include "journal.h"
#include "match.h"
+#include "misc.h"
#include "nat.h"
-#include "file.h"
-#include "proto.h"
-#include "empio.h"
#include "optlist.h"
-#include "subs.h"
-#include "common.h"
+#include "player.h"
+#include "prototypes.h"
+#include "server.h"
+
+/*
+ * Last command's PRNG seed.
+ * Only used when running_test_suite.
+ */
+int test_suite_prng_seed;
+/*
+ * Execute command named by player->argp[0].
+ * @buf is the raw UTF-8 command line. It should have been passed to
+ * parse() to set up player->argp.
+ * If @redir is not null, it's the command's redirection, in UTF-8.
+ * Return -1 if the command is not unique or doesn't exist, else 0.
+ */
int
-dispatch(s_char *buf, s_char *redir)
+dispatch(char *buf, char *redir)
{
- extern struct cmndstr player_coms[];
- extern int update_pending;
- extern int max_btus;
- struct natstr *np;
- struct cmndstr *command;
- int cmd;
+ struct natstr *np;
+ struct cmndstr *command;
+ int cmd;
- cmd = comtch(player->argp[0], player_coms,
- player->ncomstat, player->god);
- if (cmd < 0) {
- if (cmd == M_NOTUNIQUE)
- pr("\"%s\" is ambiguous -- ", buf);
- else if (cmd == M_IGNORE)
- return 0;
- else {
- pr("\"%s\" is not a legal command ", buf);
- if (player->nstat != player->ncomstat)
- pr("now ");
- pr("\n");
- }
- return -1;
- }
- command = &player_coms[cmd];
- np = getnatp(player->cnum);
- if (np->nat_btu < command->c_cost && command->c_cost > 0) {
- if (player->god || opt_BLITZ)
- np->nat_btu = max_btus;
- else {
- pr("You don't have the BTU's, bozo\n");
- return 0;
- }
- }
- if (command->c_addr == 0) {
- pr("Command not implemented\n");
- return 0;
- }
- if (update_pending) {
- pr("Update in progress...command failed\n");
- return 0;
- }
- if (redir) {
- prredir(redir);
- pr("%s\n", buf);
- }
- player->command = command;
- switch (command->c_addr()) {
- case RET_OK:
- player->btused += command->c_cost;
- break;
- case RET_FAIL:
- pr("command failed\n");
- player->btused += command->c_cost;
- break;
- case RET_SYN:
- pr("Usage: %s\n", command->c_form);
- break;
- default:
- logerror("%s: returned bad value", command->c_form);
- break;
+ cmd = comtch(player->argp[0], player_coms, player->nstat);
+ if (cmd < 0) {
+ if (cmd == M_NOTUNIQUE)
+ pr("Command \"%s\" is ambiguous -- ", player->argp[0]);
+ else if (cmd == M_IGNORE)
+ return 0;
+ else
+ pr("\"%s\" is not a legal command\n", player->argp[0]);
+ return -1;
+ }
+ command = &player_coms[cmd];
+
+ np = getnatp(player->cnum);
+ if (np->nat_btu < command->c_cost && command->c_cost > 0) {
+ if (player->god || opt_BLITZ)
+ np->nat_btu = max_btus;
+ else {
+ pr("You don't have the BTU's, bozo\n");
+ return 0;
}
- player->command = 0;
+ }
+ if (!command->c_addr) {
+ pr("Command not implemented\n");
return 0;
+ }
+ player->may_sleep = command->c_flags & C_MOD
+ ? PLAYER_SLEEP_ON_INPUT : PLAYER_SLEEP_FREELY;
+ player->command = command;
+ empth_rwlock_rdlock(update_lock);
+
+ /*
+ * When running the test suite, reseed PRNG for each command with
+ * a counter, to keep results stable even when the number of PRNs
+ * consumed changes.
+ * Tests can adjust the counter with "__cmd added ...", to
+ * keep the results stable when commands are inserted or deleted.
+ */
+ test_suite_prng_seed += !(command->c_permit & TESTING);
+ if (running_test_suite)
+ seed_prng(test_suite_prng_seed);
+
+ if (redir) {
+ prredir(redir);
+ uprnf(buf);
+ pr("\n");
+ }
+ journal_command(command->c_form);
+ switch (command->c_addr()) {
+ case RET_OK:
+ player->btused += command->c_cost;
+ break;
+ case RET_FAIL:
+ pr("command failed\n");
+ player->btused += command->c_cost;
+ break;
+ case RET_SYN:
+ pr("Usage: %s\n", command->c_form);
+ break;
+ default:
+ CANT_REACH();
+ break;
+ }
+
+ empth_rwlock_unlock(update_lock);
+ player->command = NULL;
+ if (player->may_sleep != PLAYER_SLEEP_NEVER || !io_eof(player->iop))
+ player->may_sleep = PLAYER_SLEEP_FREELY;
+ /* else we're being kicked out */
+ return 0;
}
projects / empserver / blobdiff