Bearnip Lars LDMud LDMud Release LDMud 3.2.9

See also: LDMud for BeOS

LDMud 3.2.9

Version: 3.2.9 Release Date: 02. Feb 2003 Maintained by: Lars "Mateese" Düning E-mail:	Download the source (2.7MB) from - Bearnip (USA) by HTTP (ditto as relative link) Older releases: 3.2.8, 3.2.7, 3.2.6.
MD5-Sum: 36686e84ad56e2c5d64ba9817933aa47 ldmud-329.tar.gz

About this release...

Over two years have passed since the last full release - in part because the goal was to make this the most stable driver in the 3.2 line so far. In addition to the bug corrections, a number of new features have been added to make the driver even more useful and flexible, without breaking too much current LPC code.

Overall I hope that you enjoy this release and find it useful.

My thanks go to all my faithful testers and critics who gave me encouraging feedback especially during the times I had to improvise the means needed to continue the work on the driver.

History

02-Feb-2003 (Lars Duening) -- Release 3.2.9

• Changed efuns:
  • add_action(): New flag AA_IMM_ARGS implements the sane NOSPACE handling.
  • allocate(): Accepts an optional initialisation value and can create multi-dimensional arrays.
  • ceil(), floor(): Also accept integer argument values.
  • clones(): If the driver is compiled with DYNAMIC_COSTS, the cost is proportional to the number of objects in the game.
  • ctime(): Accepts the output of new efun utime() as well.
  • debug_info():
    • New argument DINFO_TRACE to return the current call stack or the last error call stack.
    • Argument (DINFO_DATA, DID_MEMORY) also returns the number and size of permanent and clib allocations, the amount of memory allocated and available, and the amount of memory unused (where applicable).
    • Argument (DINFO_DATA, DID_STATUS) also returns the number of destructed objects and the total number of heartbeat calls.
    • Single values of (DINFO_DATA) can be returned instead of the whole array.
    • Argument (DINFO_DUMP, "destructed") creates a dump of all destructed objects, by default in <mudlib>/DEST_OBJ_DUMP.
  • debug_message(): New second argument determines where to log the message, and if to prepend a timestamp.
  • deep_copy(): If DYNAMIC_COST is active, the evaluation cost depends on size and nesting depth of copied arrays, structs and mappings.
  • exec(): If this_interactive() points to one of the involved objects, it is switched over as well, like this_player().
  • inherit_list(): the inherited objects can be returned in a tree reflecting the inheritance structure. Virtual inherits can be returned tagged as such.
  • input_to(): New option INPUT_PROMPT to specify a prompt for this input_to.
  • lambda(): Simul efuns with extended varargs weren't compiled correctly.
  • filter(), map(), sort_array(), walk_mapping(): Protected lvalues (e.g. &(i[0])) are allowed as callback parameters only when the array the efun is applied on contains only one element. They are never allowed for mappings.
  • garbage_collection(): An optional filename argument specifies the filename for the next and only the next GC.
  • get_dir(): New flag GETDIR_PATH to return the full pathnames.
  • get_type_info(): now returns the bound object for efun, simul-efun and operator closures as well.
  • load_name(), object_name(), program_name(): 0 is now accepted as argument, the efuns returns 0 in that case.
  • object_info(): OINFO_MEMORY also returns NO_INHERIT, NO_SHADOW and NO_CLONE, and gives a better account of the memory used for strings and variables. Single values can be returned instead of the whole array.
  • printf(), sprintf(): The formatter "%^" will print "%^", for compatibility with terminal_colour().
  • printf(), sprintf(): If an explicite pad string is defined, even if it is space, the efuns won't remove white space before a line end.
  • printf(), sprintf(): When printing closures with %O, the program name for inherited lfun closures is printed as well.
  • printf(), sprintf(): New format specifier 'Q' act like 'O', but quotes special characters in strings.
  • printf(), sprintf(): New format modifier '$' implements flush formatting for strings and columns of strings.
  • printf(), sprintf(): In justified column formatting, when a word is too long to fit on a line by itself and there are at least two characters space left on the current line, the long word is begun immediately. Previously, such long words were always printed on a line of their own.
  • query_udp_port(), send_udp(): Renamed from query_imp_port() and send_imp().
  • query_verb(): Added an optional flag argument to return the verb as given in the add_action() statement.
  • regexp functions: more compatible with 8-bit characters.
  • regexp functions: New metacharacters '+' allows to specifiy 'at least one match'.
  • regreplace(): Accepts a closure to produce the replacement string instead of just a constant string.
  • replace_program(): Argument can be omitted if only one inherit exists.
  • replace_program(): If the object alread has closures bound, the efun will issue a debug_message() and fail, instead of raising a full runtime error.
  • replace_program(): If the replacement program has virtually inherited variables, it must be the first inherited program.
  • restore_{object,value}(), save_{object,value}(): Non-lambda closures, symbols and quoted arrays can now be saved and restored. This required a new savefile format, though.
  • sin(), cos(), tan(), atan(), atan2(), log(), exp(), sqrt(), pow(): Integers are accepted as arguments, too.
  • sizeof(): can now be used on strings, too.
  • terminal_colour(): Colour keys can now be mapped using a closure. The pattern "%%^^" is recognized as second notation for literal "%^" besides "%^%^".
  • terminal_colour(): In wrapped formatting, when a word is too long to fit on a line by itself and there are at least two characters space left on the current line, the long word is begun immediately. Previously, such long words were always printed on a line of their own.
  • add_verb(), add_xverb(), efun308(), file_name(), map_array(), filter_array(), filter_mapping(), map_mapping(), m_sizeof(), send_imp(): set_auto_include_string(): Available only if driver is compiled with support for deprecated efuns.
• Corrected efuns:
  • and_bits(), or_bits(), xor_bits(): The bits 5, 11, 17,... were mishandled.
  • call_out(): In release 3.2.8 lvalues were not allowed as arguments - now they are again.
  • call_out_info(): Did not return the target object for closure call outs.
  • call_resolved(): Now accepts a destructed object as second parameter as it should.
  • copy_file(), rename(): Just return a non-0 value on errors, but don't throw a runtime error.
  • deep_copy(): Didn't handle quoted arrays properly.
  • filter(), map(): When used on multi-value mappings, the driver did not recognize when the called closure kept a reference to the array with the values, overwriting the values in the next iteration.
  • functionlist(): The filter flags didn't really work.
  • input_to(): The option IGNORE_BANG didn't work. In charmode, !-escapes after the first received data are now recognized.
  • map() and other efuns taking callbacks arguments: The pattern 'function, object, extra' was parsed such that 'object' became part of the 'extra' arguments.
  • notify_fail(): When used by an object which is not an undestructed command_giver, this efun no longer leaks memory.
  • object_info(): The returned OIB_NAME now starts with a '/' in plain mode.
  • printf(), sprintf(): A leading zero in the field size will now print only leading zeros and not interfere with the pad string option.
  • printf(), sprintf(): Column-formatting a string with one newline printed one newline too few if the formatstring didn't end immediately.
  • printf(), sprintf(): Printing numbers with leading zeroes and a sign character printed the sign in the wrong place.
  • printf(), sprintf(): One-line columns ending with a newline now behave like multi-line columns and delay adding the newline until the end of the line and only if no other columns are pending.
  • printf(), sprintf(): The formatter %O/%Q stumbled over really large arrays and mappings (this was actually a potential crasher).
  • regreplace(): Pattern which could match on the empty string matched once too often at string end.
  • sscanf(): the format '%s%d' failed to parse 'ab1cd' correctly.
  • to_string(): Can handle operator closures now.
  • unquote(): Unquoting symbols no longer adds a quote level.
• New efuns:
  • blueprint(): Return the blueprint object.
  • copy_bits(): Copy ranges of bitstrings.
  • db_affected_rows(), db_conv_string(), db_close(), db_connect(), db_coldefs(), db_error(), db_exec(), db_fetch(), db_handles(), db_insert_id(): Optional: mySQL support.
  • gmtime(), localtime(): Return the time broken up into its constituents.
  • find_input_to(): Find a pending input_to.
  • input_to_info(): Return information about all pending input_to's for a player.
  • include_list(): Returns the files included in a program file.
  • m_add(): To add a new entry to a mapping and assign all values in one go.
  • md5(): Compute the MD5 message digest for a string.
  • min(), max(): To select the minimum resp. maximum among a bunch of numbers or strings.
  • sgn(): Return the sign of a numeric argument.
  • unquote(): Remove a quote from a quoted array or symbol.
  • utime(): Return the current time in microsecond resolution.
• Master Object:
  • receive_udp(): Renamed from receive_imp().
  • privilege_violation(): Privilege "send_udp" replaced "send_imp".
  • valid_trace(): New second argument to receives the argument passed to the efun.
  • runtime_error(): Receives an extra argument to distinguish between normal runtime errors, and those occuring during a heartbeat.
  • include_file(), H_INCLUDE_DIRS: The pathnames can now start with leading slashes.
  • If a master is forced to reload via SIGUSR1, all inherited objects (if any) are reloaded as well.
  • notify_shutdown(): Is now called too when the driver crashes. In that case it is passed a string denoting the type of crash.
  • Bugfix: slow_shut_down() was not called with previous_object(), this_player() and this_interactive() being 0.
  • Bugfix: When reactivating a destructed master, the lfuns inaugurate_master() and reactivate_destructed_master() are found even when static.
• Fixed Crashers:
  • Catching errors with catch() did not work reliably when the driver was compiled with gcc.
  • Unlucky combinations of heart_beat() definitions or declarations (e.g. private and public inheritance in this order) crashed the driver when the heart_beat() was called.
  • When creating long value save strings, the driver crashed on corrupted memory.
  • If the object for a prompt-closure is destructed, the driver could crash under extremely unlucky circumstances.
  • #define'ing the name of an inline closure was not detected.
  • Assignments of computed strings sometimes crashed the driver.
  • Pre-increment or -decrement on an undefined variable, where the result was used in a typechecked context.
  • Adding a mapping to itself using +=.
  • The MAX_MALLOCED limit check was faulty, sometimes allowing the driver to clobber memory.
  • Tracing active when the control flow changes the current player to a non-interactive object.
  • Allowing adding an action between two objects with no environment.
  • "stack overflow" runtime errors freed svalues twice.
  • It was possible to instruct sprintf to format a string as both columns and as a table. sprintf() then formatted it as columns, but any error (like buffer overflow) would crash the driver.
  • Formatting sprintf("%#9999999999999@s", ({ "bla" }) * 2) clobbered its internal precision information on the first line, and thus crashed on the second.
  • Remove a couple crashers when handling numbers at the numerical limits.
  • Using set_this_object() before the simul-efun object was loaded.
  • Updating the simul-efun object could crash the driver when the update changed the signature of sefuns which had already been used by objects: executing the calls after the update could mess up the interpreter stack or cause it to execute garbage bytecode.
  • Too long error messages overwrote the stack.
  • If a method in a virtual inherit is rendered invisible, but also made available again through a parallel inherit of the same program, the compiler resolved the visible function to the wrong inheritance.
  • Calling a self-destructing closure from limited().
  • Runtime errors in a catch occasionally crashed in the traceback collection.
  • LPC tracing with lambda closures or call_resolved().
• Language:
  • New operators >>> and >>>= for logical right shifts.
  • New operators &&= and ||= for logical assignments..
  • New LPC define __LDMUD__ to identify this driver branch.
  • New LPC defines __VERSION_MAJOR__, __VERSION_MINOR__, __VERSION_MICRO__, __VERSION_PATCH__ expand to the various parts of the driver version.
  • New LPC define __WIZLIST__ specifies from where the driver read the initial wizlist information.
  • New LPC defines __INT_MAX__ and __INT_MIN__ give the integer number limits.
  • New LPC defines __FLOAT_MAX__ and __FLOAT_MIN__ give the integer number limits.
  • Numbers can also be specified as binary patterns with the '0b' prefix, and as octals with the '0o' prefix.
  • Floating point numbers can now also be specified in the exponential notation, e.g. 3.14E-5.
  • Character escape sequences can now specify the character code directly in decimal ('\[1-9]...'), octal ('\0o...'), sedecimal ('\x...' and '\0x...') and binary ('\0b...').
  • The operators ++ and -- can now be used on floats, too.
  • Closures bound to destructed objects are now treated uniformly like destructed objects and are replaced by 0s where required.
  • Lfun and variable closures can now be compared with == and !=, and are treated correctly in alist and array operations.
  • Inline closures inherit the visibility of their defining function.
  • Experimental: Extended the construct catch() with the keyword nolog, which suppresses logging the caught error in the logfiles. It is meant for objects like wizard tools.
  • It is no longer possible to prematurely end an inline closure function by inserting a free '}'.
  • Global functions are no longer hidden by local variables.
  • It is now possible to cast to '(mixed)'.
  • If operands of different types are given to '?:', the result will have the type 'mixed'.
  • Under strict type checking, the type checking at function return is more strict.
  • Integers and floats can now be compared against each other.
  • Identifier names can use the extended alpha characters from the ISO 8859-1 alphabet.
  • It is possible to specify multiple pragmas in one '#pragma' directive, separated by comma.
  • Additions, subtractions and multiplications now check for numeric overflows.
  • The wildcarded supercall "*":: no longer throws an error if none of the inherited objects defines the called function.
  • In a for() statement, variables may now be declared without initialisation (e.g. for (int i; ...)).
  • Definitions of local variables can appear anywhere in a block. The variables are defined from the point of definition onward.
  • If a value of the wrong type is passed to switch(), the driver no longer throws a runtime error, but instead jumpgs to the default case.
  • If pragma 'pedantic' is in effect, the compiler warns about calls to undefined functions even if typechecking is off.
  • The notation ([:expr]) can be used to create empty mappings of the given width.
  • Duplicate inherits of a program on the toplevel raise a warning, resp. an error if pragma 'pedantic' is in effect.
  • New preprocessor macros __CATCH_EVAL_COST__ and __MASTER_EVAL_COST__ for the corresponding evalcost limits.
  • New predefined macro __RESET_TIME__ and __CLEANUP_TIME__ to return the default reset and cleanup interval time.
  • Pragma warn_deprecated causes the compiler to print a warning when a deprecated efun is used.
  • Lfun closures can now explicitely name inherited lfuns (#'inh::fun).
  • Bugfix: Right shift by 32 or more bits was computed incorrectly.
  • Bugfix: Adding mappings of different width throws an error, unless one of the mappings if empty.
  • Bugfix: The type tracking of multiplications can returns the right type when seeing 'mixed' operands.
  • Bugfix: All <op>= assignment can now operate on indexed strings on the left hand side.
  • Bugfix: Additions of floats to 0 yielded the wrong type.
  • Bugfix: For closely consecutive switch case ranges (e.g. 'case -2..-1: case 1..2:') the compiler generated faulty lookup tables.
  • Bugfix: Improved the typetracking for operator '&' when used with mixed variables.
  • Bugfix: A cast of an expression to its own type now longer inserts a conversion operation.
  • Bugfix: Global variables can no longer be redefined in the same scope.
  • Bugfix: It is now possible to use symbols in inline closures, ie. "(: 'a :)".
  • Bugfix: Escaped character constants are now only parsed up to a maximum length. If no valid digits are found, the whole item is simply treated as escaped character.
  • Bugfix: When defining a function of the same name as an inherited private function, the latter is no longer redefined.
  • Bugfix: Multi-dimensional mapping indices in macro calls are no longer confused with multiple macro arguments.
  • Bugfix: Inherited private variables no longer hide (simul-)efuns.
  • Bugfix: Inheriting two private functions with the same name caused the compiler to cross-define the second to the first. Invisible to the user, this messed up any use by __INIT and other local calls.
  • Bugfix: The :: operator did not recognize the separate namespaces of variables and functions: void foo(string id) { ::id(id); } lead to a syntax error.
  • Bugfix: Using auto-includes no longer generate wrong line numbers in error messages.
  • Bugfix: "*"::foo() checks just the directly inherited programs.
• Runtime:
  • Attempts to set a single string character to 0 now raise a runtime error.
  • The internal alarm timing is monitored and restarted in case the alarm gets lost (happens often on Cygwin).
  • New runtime limit LIMIT_CALLOUTS (commandline option '--max-callouts') for the maximum number of callouts at one time.
  • Normal runtime errors are no longer reported on the console.
  • For the first 255 simul efuns, it is now permissible to catch reference parameters in a varargs parameter. However, the only permitted use is to pass them flat in a function call (using apply())!
  • The protocols MCP, MSP and MXP can now be negotiated through the H_TELNET_NEG hook.
  • New optional driver hook H_AUTO_INCLUDE to set a string or closure for auto-include information.
  • Signal USR2 forces the driver to reopen the host.debug.log file.
  • Experimental: Defining USE_PTHREAD (if your system has pthread support) activates code which uses threads to write the socket data to the network in the background. Intention is to avoid EWOULDBLOCK errors on slow connections.
  • Errors while loading objects now include the inheritance chain.
  • If the driver uses the default debug.log file, its (mudlib) name is available in the predefined macro __DEBUG_LOG__.
  • External master calls (like for ERQ messages) get the same eval-cost benefits during error handling as normal call-others.
  • Lfun closures left danging by a replace_program() are now converted into alien-lfun closures, so that the error handler has a chance to determine the originating object.
  • Bugfix: When logging on players, the initial prompt wasn't printed.
  • Bugfix: IPv6 name lookup works again, and also with both xerq and erq.
  • Bugfix: The driver now longer gets a confused when a client like TinyFugue refuses to use CHARMODE.
  • Bugfix: On mapping addition or element assignment, invalid keys (like destructed objects) were still counted against the allowed mapping size.
  • Bugfix: Simple reference loops as created by b = 0 || &a; b = 0 || &a; are detected.
  • Bugfix: When destructing an object, references through closures are removed from the local variables as well.
  • Bugfix: Removing or destructing a shadow now properly removes all associated actions.
  • Bugfix: The tracing checks weren't done against the current interactive as documented, but instead against the current commandgiver.
  • Bugfix: If H_INCLUDE_DIRS was set to an array of directory names, the names couldn't have leading '/'.
  • Bugfix: Before calling reset() or clean_up() from the backend, the previous_object is cleared.
  • Bugfix: copy()ing or subtracting mappings did not remove destructed elements first.
• Other Changes:
  • Renamed the driver executable to ldmud.
  • New driver option --pidfile filename to write the pid of the driver process into a file.
  • New driver option --erq filename to choose a different name for the ERQ executable (default is 'erq'). The option can also be used to specify the full pathname of the executable, and pass simple arguments to the erq.
  • The driver mode (plain or compat) can be selected with a commandline option (--no-compat resp. --compat).
  • New driver options --min-malloc and --min-small-malloc to specify the size of the initial block allocations.
  • New driver options --wizlist-file and --no-wizlist-file to control from where the driver reads the initial wizlist information.
  • New driver option --args filename reads the commandline arguments from a textfile. These argument files can be nested.
  • New driver option --random-seed num sets the seed value for the random number generator for debugging purposes. If not given, the driver chooses a seed value on its own.
  • New driver option --hostname <name> to specify the hostname, overriding the value returned by the system.
  • New driver option --hostaddr <addr> to specify the hosts address, overriding the value returned by the system. In particular this address will be used to open the driver ports under.
  • Removed a couple of fatal race-conditions in the xerq.
  • New configuration option trace-code enables the bytecode tracing.
  • New configuration option use-deprecated allows to disable obsolete and deprecated efuns. If enabled, the macro __DEPRECATED__ is defined.
  • New configuration options use-set-is-wizard, use-set-light and use-process-string to configure the corresponding optional efuns.
  • The UDP port is now a standard feature. The option has been renamed from 'catch_udp_port to just udp_port.
  • Swapping is now a standard feature, though it still can be disabled by specifying swapping times of 0.
  • The ERQ_EXECUTE command now recognizes quoted arguments.
  • The special command "malloc" is now under the control of the IS_WIZARD flag, too.
  • The erq/xerq commandline argument --execdir <dir> allows the to override the default ERQ_DIR specification for the directory with the callable executables.
  • Builtin command dumpallobj now also creates a dump of all destructed objects in the file <mudlib>/DEST_OBJ_DUMP.
  • Character conversions are now done with regards to the locale selected by the LANG environment variable.
  • The xerq now sends an ERQ_OK message when a queued write is finally completed.

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