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ColdX
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Note: all versions are denoted by "Major.Minor-PatchLevel". Each index
line includes the version, the date of release (in brackets), and
contributors to that version. Read the file ColdX.Project for more
information.
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0.3-0 []: Brandon
* Fixed long-time bug in lowercase and uppercase, they were calling
prepare_to_modify, unnecessarily, which was causing problems.
* Created ColdX Process Controller (control). Control will
be the process run, and will fork the driver or coldcc. Once
running, it will also connect to the driver (shared mem or
pipes) for running blocked or forked tasks (name lookups and
execute, for now).
* Created coldcc, which will compile a binary db from text and
will also decompile a binary to text. This functionality will
be removed from the driver. Coldcc will also have added
functionality.
0.2-2 [23-Sep-95]: Dancer
* fixed many places where objects were not marked dirty and they
should be.
* fixed a bug in task scheduling (execute.c:task_delete())
0.2-1 [20-Sep-95]: Brandon, Dancer
* Caching problems worked on, code by Dancer (help from Miroslav)
* Pile allocation fixed (Dancer)
* Bug in bind/unbind function fixed, uses symbols uniformely now
* Changed data_tostr() literal strings (Brandon)
"<list>" -> "[list]"
"<frob>" -> "<frob>"
"<dict>" -> "#[dict]"
"<buffer>" -> "`[buffer]"
* Fixed a bug with expression method evaluations and data
references for objects, ala: "string".('explode)(); (Brandon)
* fixed strfmt() bug (big evil one) (Brandon)
* random cleanup (Brandon)
0.2-0 [11-Sep-95]: Brandon Gillespie, Miroslav Silovic
* Added Floating Point support (Miroslav)
* Fixed memory leak in match_pattern() (Miroslav)
* New Function: method() (returns method in current frame)
* New Function: backup(), similar to binary_dump(), but it copies
the binary directory before making it dirty again.
* Fixed bug with decompiling frob's
* New Function: buffer_from_string() (newlines -> \n )
* New Function: buffer_to_string() (newlines -> \n )
* Changed compiling escapes in strings. Previously it would eat
any single slash, and would escape the second character. Now
it does not eat the slash if the second char is not a double
quote, or a slash. This was causing a problem as you would
have to submit regexp escapes as "str \\$object" rather than
"str \$object" as they should be. It works fine now.
* Rearranged files in anticipation of adding object modules and
native methods.
* Added method states and method flags. Method states can be one
of the following:
public (default)
private (callable only by this)
protected (sendable only by this)
root (callable only by $root)
driver (callable only by the driver)
Method flags can be any of the following:
disallow_overrides (same as before)
synchronized (will be used with multi-threading)
locked (method cannot be changed after this is set)
native (the method is native code, will come in later)
* New Function: method_flags() returns the method flags as a list
boolean integers. This will change to a bitwise field, once
bitwise operators are added.
* New Function: method_state() returns the method state as a symbol
* New Function: set_method_state() sets the method state
* New Function: set_method_state() sets the method state
0.1-5 [7-Aug-95]: Brandon Gillespie, Miroslav Silovic, Jeff Kesselman
* New Function: clear_var() (Brandon, Miroslav)
* New Functions: localtime(), strftime() and timestamp() (Brandon)
* New Function: buffer_tail() (Jeff Kesselman)
* textdump read/write: ignores variables with invalid parents (Brandon)
* New Functions: stat_file(), read_file() (Brandon)
read_file() will eventually work the way it is supposed to,
(line by line) rather than the entire file in one buffer (which
is as it works now).
* Added file management routines, seperate development source
for developers, distribution source is a modified version of
the development source. (Brandon)
0.1-4 [16-May-95]: Brandon Gillespie, Miroslav Silovic
* Fixed "E" in "aeiou" bug (Brandon Gillespie)
* Fixed ugly nasty bug in function binding (Brandon Gillespie)
* Fixed regexp bug, had backwards logic (Miroslav Silovic)
* Signal handler now catches SIGCHLD and does what it should (so
no more <defunct> processes, hopefully). (Brandon Gillespie)
* Signal handler resets signals after each catch, for SYSV systems
(I don't believe BSD systems need to do this, but I could be
wrong). (Brandon Gillespie)
0.1-3 [13-Mar-95]: Robert de Forest, Brandon Gillespie
* assignments changed to expressions (Robert de Forest)
* dynamic function binding (Brandon Gillespie)
Before this change a select set of functions were hardcode
bound to the system object. Now, all functions are unbound
and may be called by any object. Two additional functions
have been added (bind_function and unbind_function). The
function bind_function() accepts two arguments. The first
is a string representing a function to be bound. The second
is an object in the database to which the function will be
bound. The function unbind_function() accepts one argument,
which is a string representing the function to be unbound.
When a function is unbound it may be called by any object in
the database.
* signal handling cleanup (Brandon Gillespie)
* To settle a long dispute, one set of function names were changed
again:
get_objnum() => get_dbref()
add_dbref() => add_objname()
del_dbref() => del_objname()
next_objnum() => next_dbref()
toobj() => todbref()
Yes, this is redundant, lets hope its the last time.
0.1-2 [03-Mar-95]: Brandon Gillespie
More cleanup, fixed some Signal problems for Linux
0.1-1 [02-Mar-95]: Brandon Gillespie
Cleanup to configure script, added USE_GETRUSAGE flag
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0.1-0 [01-Mar-95]: Brandon Gillespie
0.0-3 [..-...-..]: Brandon Gillespie
* added signal handler
* changed main loop structure, previously:
1. flush_defunct connections/records
2. handle all input and output events:
1. [io]wait for something to happen
2. handle connection input and output
3. handle new and pending connections
3. handle heartbeat
4. run paused tasks
now:
1. flush_defunct connections/records
2. [io]wait for something to happen
3. handle connection input
4. handle new and pending connections
5. handle heartbeat
6. handle connection output
7. run paused tasks
* changed a few function names:
todbref() => toobj()
get_name() => get_objnum()
disconnect() => close_connection()
conn_assign() => reassign_connection()
run_script() => execute()
bind() => bind_port()
unbind() => unbind_port()
connect() => open_connection()
set_heartbeat_freq() => set_heartbeat()
set_name() => add_dbref()
del_name() => del_dbref()
db_top() => next_objnum()
* added functions:
status() -- system status (man rusage)
load() -- system load, define CHECK_LOAD
in config.h to use. Note: this
is not a good implementation.
mtime() -- microseconds (man gettimeofday)
* fixed strsub() bug (strsub("", "", ""))
* Random code cleanup and rewrites
0.0-1 [..-...-..]: Brandon Gillespie
fixed some problems with configure and the server testing
script
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ColdMUD
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0.12-1 (4-Nov-94): Brandon Gillespie / Alex Stewart
Updated Documentation, created a baseline configure
script, added bin/ and it's relative scripts,
cleaned up file heirarchy. Added write_err(),
which goes to stderr (same as write_log before),
write_log() goes to stdout and is (currently)
only called in op_log(). Alex Stewart fixed
compile warnings. Major additions of this patch
level include the file tree and the configure
script system.
----
0.12 (unknown)
Jordan took 0.11-4 (which included the 0.10-3 patches) and
added suspend()/resume() and pause().
----
0.11 (unknown)
Last source from Greg. Includes removal of dict_del_elem(),
dict_add_elem(), error_arg() and error_str() as well as added
functionality to traceback().
----
0.10-3 (5/22/94)
Bug fixes:
(0.10-1) Loading DB error fixed (Robert de Forest/Crag)
(0.10-1) Catches to mod by 0 and random 0 (Zachary)
(0.10-2) ticks_remaining() added (Robert de Forest/Crag)
(0.10-3) hostname() and ip() added (merlin)
bind() fixed (Greg Hudson)
dict error fixed (??)
LOG_TIMES added in config.h (Brandon Gillespie/Lynx)
0.10 (1/3/94)
Bug fixes:
(0.9-1) Error messages for some admin functions
(0.9-2) Error checking in op_index() was wrong.
(0.9-3) explode() didn't work on multi-character
token separators.
(0.9-4) Checking for changing root's parents in
op_chparents() was wrong.
(0.9-5) explode() now checks for 0-length separators.
(0.9-6) tostr() on dictionaries was slightly broken.
(0.9-7) echo() returned 0 instead of 1.
(0.9-8) dict_del() was corrupting dictionaries.
(0.9-9) Deleting an object didn't mark the db as
dirty, although it modifies the db, so that
you could have a "clean" database with missing
objects.
(0.9-10) data() was leaking object reference counts.
(0.9-11) Frob keys in dictionaries could be lost.
(0.9-12) class() was leaking dbref reference counts.
(0.9-13) op_message() error used a discarded
identifier.
(0.9-14) delete() was failing on sublists of lists.
(0.9-15) While creating a dictionary, checking for
duplicates was faulty and could produce an
inconsistent hash table.
Regular expression matching is now case-insensitive by
default. An optional third argument can be specified
to make it case-sensitive.
Whitespace is now stripped at the end of text-dump lines, so
trailing tabs and spaces are irrelevant. (This was
biting a number of people.) Also, unprintables are
stripped from text dump lines.
explode() now takes an optional third argument indicating that
it should include blank tokens if there is a sequence
of two or more token separators or if there is a token
separator at the beginning or end of the string.
Added error_str().
Fixed some compatibility problems with compilation, and made
it more palatable to compile under BSD 4.3.
Started using SO_REUSEADDR to help with binding to the port
random() is now 1-based.
Added buffer type. The 'parse' message now comes with a buffer,
instead of with a line. echo() takes a buffer instead
of a string.
Text dumps now write to "textdump.new" and rename onto
"textdump", to avoid problems with machines crashing
during text dumps.
Now performing sanity checking to catch object reference count
leaks.
Dbrefs are now numeric; $foobar is a "name" which evaluates to a
dbref. The text dump format has a 'name' command to set
names, and there's also set_name(), del_name(), and
get_name(). The functions toint() and todbref() have new
behavior.
Added db_top(). It will go away in 0.11 or 0.12, though, so it's
not documented.
Added dict_add_elem() and dict_del_elem().
0.9 (November 25, 1993)
Bug fixes:
(0.8.1-1) Output wasn't being flushed on shutdown()
(0.8.1-3) has_ancestor() wasn't working
(0.8.1-4) Some minor uninitialized memory problems
(0.8.1-5) A few fairly serious memory leaks
Added match_regexp().
Frob reps can now be lists as well as dictionaries.
substring() changed to substr() for consistency
The 'connect' message sent to receiver objects for ports now
has two arguments, the remote address and the remote
port.
Added task_id()
The 'connect' message sent to receiver objects for connect()
now has one argument, the task ID which called
connect(). The 'failed' message sent to receiver
objects for connect() now has two arguments; the first
is the task ID which called connect(), and the second
is the error code of the failure.
0.8.1 (November 21, 1993)
Bug fixes:
(0.8-1) chparents(), destroy(), conn_assign() were
leaking stack frames.
(0.8-2) Reading in frobs from a text dump caused crashes
0.8 (November 15, 1993)
Bug fixes:
(0.7.1-1) .foo() was decompiling to this().foo()
(0.7.1-2) Method search bug
Added data().
Changed frob construction syntax to <class, rep>.
Added optional third argument to throw() and an error_arg() to
retrieve it.
0.7.1 (November 12, 1993)
Bug fixes:
(0.7-2) Memory leak in discarding identifiers
(0.7-3) Write buffer wasn't flushed before disconnecting
(0.7-4) Crashes under Linux during text dumps
(0.7-5) Compile-time portability problem with db.c
(0.7-6) Crashes under Linux while traversing object db
(0.7-7) Portability problems with NEXTSTEP
(0.7-8) [@a, ...] optimization was buggy
(0.7-9) Line counter failed on catch statement
(0.7-11) union(foo, []) was leaking stack frames
Rewrote lexer in C, to avoid lex/flex portability problems.
Improved portability to SVR4 systems.
0.7 (November 2, 1993)
Bug fixes:
The delete() function was leaving its list in an incorrect
state, causing memory corruption.
A text_dump() immediately after another text_dump()
resulted in a blank file, since the current search
index wasn't getting updated.
The current search index wasn't getting saved on binary
dumps.
Removing a method while it was running could have caused
crashes.
chparents() was crashing. It also wasn't checking for
empty parents lists, a security hole.
The method search was scanning the parents in the wrong
direction.
replace() was mutating its list argument by mistake.
String comparison was severely wrong wrt substrings.
Dictionary comparison and frob comparison were wrong.
binary/clean file now stores version number (along with current
search index), so that the server won't try to load a
binary database with a different version number.
Revised documentation to reflect lack of pass-to, and made other
improvements.
this, definer, caller, sender now functions, not variables.
Added sugar for '.foobar(...)' --> this().foobar(...), and for
@[...] --> this()@[...] (s/@/$/p; see below).
Optimized a = [@a, ...] (transparent to users).
Frob start token changed from @[ to $[ to remove conflict with
splice operator.
Added uppercase(), lowercase(), case-sensitive strcmp(), and added
size() to return the current object's size.
Reorganized the database code to avoid including ndbm.h in a
_POSIX_SOURCE'd file (was causing trouble on BSDi systems).
0.6 (October 16, 1993)
Bug fixes:
Type errors involving dictionaries and frobs were wrong.
Case ranges failed badly, causing crashes
Adding inappropriate values also caused crashes
In fact, a lot of opcodes had this problem. I've checked
them pretty thoroughly and fixed a bunch.
Added min(), max(), abs().
Added connect(addr, port, dbref), starts connecting to a remote
host. dbref receives a "connect" or "failed" message
when the connection finishes.
Added heartbeat, and administrative operation set_heartbeat_freq().
Eliminated pass-to from the server; only inspecific pass is
supported.
0.5.1 (October 9, 1993)
Bug fixes:
Reading in dictionaries from a binary dump didn't set
the reference count, causing crashes.
Likewise duplicating dictionaries.
A bug in the compiler was causing the decompiler to put
`callers' at the end of variable declarations.
0.5 (October 6, 1993)
Bug fixes:
Some primitives (including setadd() and setremove())
were corrupting lists.
Error messages for index() and sublist(), and for
getting an invalid object variable.
Truth test for strings and lists was wrong.
create() wasn't restricted to $sys.
The directory "binary" didn't have x permissions.
Line-number counting was wrong in some cases.
rethrow() dumped core.
Binary db output from dbpack.c is no longer binary, although
ndbm is still icky that way, so no big deal.
ancestors() is back in.
Added union()
Optimized more cases of 'foo = <expr including foo>' to avoid
unnecessary copies. (Especially helpful for the
following.)
Dictionaries. #[[key, value], [key, value]] creates a
dictionary. dict["foo"] indexes into the keys.
for i in (dict) iterates over the associations
[key, value]. dict_keys(dict) retrieves a list of
the keys. dict_add(dict, key, value) returns a
dictionary with an added key and value.
dict_del(dict, key) returns a dictionary with the
association for that key removed.
dict_contains(dict, key) determines if a key exists in
a dictionary.
Frob representations are now dictionaries, not lists.
Got rid of 'player'. Also, 'sender' now refers to what 'caller'
used to refer to. 'caller' now refers to the dbref of
the object which defines the method which sent the
message, and 'definer' now refers to the dbref of the
object which defines the current method.
connect and disconnect messages now get sent to the connection
objects, rather than the system object.
0.4.1 (September 19, 1993)
Lots of stupid bugs (including some compile-time bugs) fixed
which got past me.
0.4 (September 19, 1993)
Identifier usage is now local to objects, so the global
identifier table doesn't grow with the database.
dbrefs are now symbolic, not numbers. You represent them with
$foo, not #xx. Where #-1 was used, 0 (the integer) is
now used.
toliteral() now does what tostr() used to. tostr() now does
translations more conveniently for some purposes. In
particular, dbrefs, symbols, and error codes get
translated to their names as strings, not as literals.
Strings are unaffected by tostr(). lists go to
"<list>".
The printed representations of non-identifier dbrefs, symbols,
and error codes are now $"foo", '"foo", and ~"foo"
respectively. The parser can read this.
Named arguments. In addition to the 'var' declaration, there
is an 'arg' declaration, which specifies the argument
names. "arg foo, bar, baz;" indicates three arguments
named foo, bar, and baz. "arg foo, [bar];" indicates
one argument named foo, and then any number of arguments
following it, which will be stuffed into a list stored
in a variable named bar. Method calls fail if you pass
a method too few or too many arguments.
Multiple server ports. The command line currently takes one
argument, a database directory. The database is
responsible for binding server sockets using bind();
unbind() lets you unbind a server socket. When you
bind(), you give the server an object for handling the
connections.
Tracebacks improved. An explanation string only shows up on the
first line of the traceback, since the remaining messages
are generally not useful, and serve mostly to make the
lines too long. Errors generated by throw() result in
more understandable tracebacks now, I think. rethrow()
now takes only one argument (an error code).
foo.bar is no longer an acceptable abbreviation for foo.bar().
You can now append lists using the + operator.
The case of 'foo = foo + whatever' is now optimized so that
unnecessary string and list copies don't take place. The
case of 'foo = [@foo, whatever]' is not optimized,
however.
Binary database files are all in the directory 'binary', to
allow for different implementations of ndbm. I still need
to redo the database layer myself, but that will wait.
No more ancestor precedence lists. (Purely internal change.)
Added find_method() and find_next_method().
Added a new data type, frob, and the built-in function class().
Non-overridable methods. Add a `disallow_overrides;' declaration at
the top of your method and it cannot be overridden by
children.
Removed spew_method().
If I didn't do this before, create(), destroy(), and chparents() are
now administrative functions which take arguments. setvar()
and getvar() are now set_var() and get_var(). rmvar() and
vars() don't exist any more; instead, there is add_parameter(),
parameters(), and del_parameter(). Methods refer to variables
through the parameters of the object the method is defined on,
so the variable namespace is different for each ancestor of an
object.
0.3 (July 29, 1993)
Went to a global symbol table that grows in memory with the
size of the database. I may disk-base this in the
future.
Rewrote error-handling code.
Default return value is now the current object's dbref,
instead of 0.
We now use a global identifier table. Should improve speed
signficantly. It does mean that the process size grows
with the db, though, albeit slowly. I can make tradeoffs
later if this becomes a problem.
Binary database management is different now.
version() now returns a number, not a string.
Added toerr(), run_script().
Split length() into strlen() and listlen().
Added catch statement, critical expression, propagate expression.
Added error(), traceback(), throw(), and rethrow().
? : changed to ? |, since it was going to happen anyway.
There's no longer a configuration file. You can still use -p
to specify the port number. For now, the cache width
and cache depth are hardcoded; they will hopefully be
runtime-settable eventually.
0.2.1 (June 8, 1993)
Fixed several bugs in binary dump reading, and got it to work
with Linux.
Fixed match_pattern() function.
Fixed quoted wildcard matches in match_template() function.
Fixed pad() function.
Fixed setremove() function.
Am now making sure to close the dbm file to force consistency.
0.2 (June 5, 1993)
Fixed a bug in flush_defunct_connections() in io.c
Fixed a bug in the decompiler in if-else unparsing, and another
one in expr-message unparsing
Fixed binary dumping
Fixed strsub()
Relaxed the requirement that compound statements and methods
must contain at least one statment
Fixed text dumps
Added version(), random(), time(), ctime()
echo_file() now looks in a "text" directory.
--port is now -p
-d option changes into a directory before running
destroy() now reparents orphans to the destroyed object's
parents.
destroy() now returns E_PERM for system and root objects.
Fixed an object reference count bug in object_find_method() in
object.c.
Fixed op_spawn(), which wasn't discarding an object reference
count properly.
0.1 (June 3, 1993)
Initial release