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sml/branches/SMLNJ/src/cml/CHANGES revision 8, Sun Jan 18 01:01:29 1998 UTC cml/trunk/CHANGES revision 2271, Sun Jan 28 13:46:49 2007 UTC
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1  This is a record of changes made to CML and the CML Library.  This is a record of changes made to CML and the CML Library.
2  ------------------------------------------------------------  ------------------------------------------------------------
3    
4    [2007-01-28]
5            Updates to the cml-lib to track additions to the SML/NJ library.
6    
7    [2006-12-07]
8            Carried over the fix to the SOCKET signature.
9    
10    [2006-05-04]
11            Fixed bug with iGetPoll, mTakePoll, and mGetPoll.  In some cases, the
12            atomic region was not being closed properly.  The iGetPoll and mGetPoll
13            operations just read the value field now, since there is reads are
14            atomic.
15    
16    [2006-02-27]
17            Fixed bug with the combination of withNack and never, where the
18            negative acknowledgement is never generated.  Thanks to Heath
19            Putnam for the bug report and fix.
20    
21    [2005-02-28]
22            Fixed serious bug in structure Atom. (Must use mvar, not mailbox!)
23    
24    [2005-02-24]
25            Reuse signature ATOM from $/smlnj-lib.cm, thus tracking all changes.
26            Implement structure Atom in terms of structure Atom in $/smlnj-lib.cm
27            by protecting access to the global hashtable using an mbox lock.
28            Atoms can now be created (sequentially) prior to calling RunCML.doit.
29    
30    [2004-11-24]
31            Made the IO implementation agnostic of size of Position.int.
32            (Now compiles with either Position = Int31 or Position = Int64.)
33    
34    [2003-09-23]
35            Accounted for changes to socket API in Basis. (Non-blocking
36            behavior is no longer a stateful property of a socket.  Instead,
37            there are non-blocking versions of most functions in the
38            interface.  This simplifies the CML code since it no longer
39            has to do OS-specific handling of "wouldblock" etc.
40            On the other hand, (trivial) CML implementations of those
41            non-blocking operations had to be added.)
42    
43    [2003-09-12]
44            Accounted for changed type of inputLine.
45    
46    [2003-09-09]
47            Made CML compile under Win32 again.
48    
49    [2003-09-03]
50            Added *_SLICE signatures and *Slice structures (copied from
51            "normal" Basis into CML Basis).
52            Fixed code broken due to API changes (slices).
53    
54    [2003-05-09]
55            Added the missing implementation of StreamIO event constructors
56            (e.g., TextIO.StreamIO.inputEvt).  Note that if you use these
57            operations, then the system may not shutdown when all user threads
58            are blocked.
59    
60    [2003-04-21]
61            The CleanUp.logMailbox function was not protected against
62            interrupts (thanks to David Benson for catching this bug).
63    
64    [2003-04-09]
65            Changed the name of the directory cml-lib/cm to cml-lib/cm-descr
66            in order to avoid a name conflict with cml-lib/CM which gets
67            created by the compilation manager.  (On case-insensitive
68            filesystems such as the one used by MacOS X the two names clash.)
69    
70    [2003-03-10]
71            Documentation cleanup.
72    
73    [2002-10-01]
74            Fixed a bad space leak in the stream I/O implementations.  The
75            cleanup hooks were holding onto the initial buffer, which
76            meant that the entire buffer chain would remain live as long
77            as the stream was live.
78    
79    [2001-06-20]
80            Ported to SML/NJ 110.33 (in particular, the new CM).
81            Under the new CM, the CML library is known as $cml/cml.cm
82            and there is a CML-specific replacement for $/basis.cm
83            known as $cml/basis.cm.  Two additional libraries
84            ($cml/cml-internal.cm and $cml/core-cml.cm) are used
85            internally but should not be referred to directly by client code.
86            A CML-specific replacement for $/smlnj-lib.cm is
87            known as $cml-lib/smlnj-lib.cm.  The trace module is
88            $cml-lib/trace-cml.cm. (The aforementioned $cml/core-cml.cm
89            exists mainly to make it possible for $cml-lib/trace-cml.cm
90            to refer to it.)
91    
92    [2001-03-8]
93            Fixed a problem in the ordering of clean-up actions.  IO streams
94            were being cleaned before servers, which meant that servers could
95            not use I/O in initialization or shutdown.
96    
97    [2001-01-14]
98            Fixed a bug in the timeout manager.  Cleanup actions were being
99            executed twice, which breaks withNack.
100    
101    [2000-12-12]
102            Fixed a bug in the I/O manager (core-cml/io-manager.sml), where
103            if there were two threads blocked on the same descriptor (one
104            reading and one writing), the result might be matched to the
105            wrong thread.
106    
107    [2000-09-28]
108            Version 1.0.13 (SML/NJ Version 110.0.7)
109    
110    [2000-09-27]
111            Updated the CML Library to track additions to the SML/NJ Library.
112    
113    [1999-12-08]
114            Fixed a collection of bugs in event.sml related to the handling of
115            negative acknowledgements.
116    
117    [1999-12-01]
118            Modified RunCML.doit to install a dummy print hook.  This prevents
119            the bug of SML/NJ's print function being called during CML execution
120            (the CML print function is installed by code in TextIO, but that
121            code isn't loaded by CML when the application does not specifically
122            mention TextIO).
123    
124    Version 1.0.12 (SML/NJ 110.0.6 and 110.8)
125    -----------------------------------------
126    
127    [1999-09-29]
128            Updated the CML Library to track additions to the SML/NJ Library.
129    
130    [1999-07-05]
131            Added support for Win32 sockets (thanks to Riccardo Pucella).
132    
133    [1998-08-04]
134            Added preliminary Win32 implementation (thanks to Riccardo Pucella).
135    
136    [1998-06-01]
137            Fixed type of inputLineEvt in CML_TEXT_STREAM_IO (thanks to A. Appel).
138    
139    [1998-03-12]
140            Fixed bug in ChanIOFn (failure to spawn threads).
141    
142    
143  Version 1.0.11 (SML/NJ 109.33 and 110)  Version 1.0.11 (SML/NJ 109.33 and 110)
144  --------------------------------------  --------------------------------------
145    
   - Added TextIO.scanStream function.  
146      [1997-11-21]      [1997-11-21]
147            Added TextIO.scanStream function.
148    
   - Added import of PathUtil:PATH_UTIL to CML library.  
149      [1997-11-21]      [1997-11-21]
150            Added import of PathUtil:PATH_UTIL to CML library.
151    
152    
153  Version 1.0.10 (SML/NJ 109.32)  Version 1.0.10 (SML/NJ 109.32)
154  ------------------------------  ------------------------------
155    
   - Fixed a scheduler bug that occured when the atomicState was SignalPending  
     and atomicSwitchTo was used to exit the atomic region.  
156      [1997-09-18]      [1997-09-18]
157            Fixed a scheduler bug that occured when the atomicState was SignalPending
158            and atomicSwitchTo was used to exit the atomic region.
159    
   - Fixed a bug in the RunCML.doit code that prevented multiple runs (this bug  
     was exposed by the previous bug fix).  
160      [1997-09-15]      [1997-09-15]
161            Fixed a bug in the RunCML.doit code that prevented multiple runs (this bug
162            was exposed by the previous bug fix).
163    
   - Fixed a serious bug with the internal condition variables (Event.atomicCVarSet  
     was not changing the state of the variable).  
164      [1997-09-15]      [1997-09-15]
165            Fixed a serious bug with the internal condition variables (Event.atomicCVarSet
166            was not changing the state of the variable).
167    
   - Introduced datatype rebinding to eliminate some structure opening.  
168      [1997-09-15]      [1997-09-15]
169            Introduced datatype rebinding to eliminate some structure opening.
170    
   - Moved definition of tidToString to RepTypes, so that it can be used in  
     debugging the CML internals.  
171      [1997-09-14]      [1997-09-14]
172            Moved definition of tidToString to RepTypes, so that it can be used in
173            debugging the CML internals.
174    
175    - Server initialization/shutdown is now handled by a dedicated cleanup  [1997-09-12]
176            Server initialization/shutdown is now handled by a dedicated cleanup
177      routine.  Eventually, each server should define its own cleanup routine,      routine.  Eventually, each server should define its own cleanup routine,
178      and we'll get rid of logServer.      and we'll get rid of logServer.
     [1997-09-12]  
179    
   - Fixed bugs in the initialization and shutdown protocols for the standard  
     text streams.  
180      [1997-09-12]      [1997-09-12]
181            Fixed bugs in the initialization and shutdown protocols for the standard
182            text streams.
183    
184    
185  Version 1.0.9 (SML/NJ 109.31)  Version 1.0.9 (SML/NJ 109.31)
186  -----------------------------  -----------------------------
187    
   - Added cleanup code for the I/O stacks (including the standard I/O streams).  
188      [1997-09-02]      [1997-09-02]
189            Added cleanup code for the I/O stacks (including the standard I/O streams).
190    
191    - Implemented a clean-up mechansim that is similar to that provided by  [1997-08-29]
192            Implemented a clean-up mechansim that is similar to that provided by
193      SML/NJ.  The logging of global servers for initialization/shutdown      SML/NJ.  The logging of global servers for initialization/shutdown
194      is now done using cleaners, which provide somewhat finer control.      is now done using cleaners, which provide somewhat finer control.
195      Channel and mailbox logging is still supported, but the initialization      Channel and mailbox logging is still supported, but the initialization
196      is done by a dedicated cleaner.  This change is part of the overhaul      is done by a dedicated cleaner.  This change is part of the overhaul
197      of RunCML.      of RunCML.
     [1997-08-29]  
198    
   - Qualified the use of the "cont" type constructor, which is no longer  
     available at top level.  
199      [1997-08-28]      [1997-08-28]
200            Qualified the use of the "cont" type constructor, which is no longer
201            available at top level.
202    
   - Replaced a few holdover uses of "abstraction" with opaque signature matching.  
203      [1997-08-28]      [1997-08-28]
204            Replaced a few holdover uses of "abstraction" with opaque signature matching.
205    
206    - RunCML.doit now returns an OS.Process.status value.  If a CML program  [1997-08-15]
207            RunCML.doit now returns an OS.Process.status value.  If a CML program
208      uses OS.Process.{exit,terminate} to shutdown, then the status argument      uses OS.Process.{exit,terminate} to shutdown, then the status argument
209      is returned as the result.  If the system shuts down because of deadlock,      is returned as the result.  If the system shuts down because of deadlock,
210      the OS.Process.failure is returned.      the OS.Process.failure is returned.
     [1997-08-15]  
211    
212    - Many changes to ensure that exportFn images do not include the entire  [1997-08-15]
213            Many changes to ensure that exportFn images do not include the entire
214      top-level environment.  These include: using SMLofNJ.isolate to create      top-level environment.  These include: using SMLofNJ.isolate to create
215      top-level continuations, and reimplementing RunCML.exportFn to do better      top-level continuations, and reimplementing RunCML.exportFn to do better
216      housekeeping.  To get this to work also required a number of changes      housekeeping.  To get this to work also required a number of changes
217      to the SML/NJ sources.      to the SML/NJ sources.
     [1997-08-15]  
218    
   - Fixed bug in scheduler, where a timer interrupt in an atomic region  
     was not getting marked by SignalPending.  
219      [1997-08-15]      [1997-08-15]
220            Fixed bug in scheduler, where a timer interrupt in an atomic region
221            was not getting marked by SignalPending.
222    
   - The TextIO.output* functions did not implement line buffering; this  
     has now been added.  
223      [1997-07-24]      [1997-07-24]
224            The TextIO.output* functions did not implement line buffering; this
225            has now been added.
226    
227    
228  Version 1.0.8 (SML/NJ 109.30)  Version 1.0.8 (SML/NJ 109.30)
229  -----------------------------  -----------------------------
230    
   - Changed uses of System.Unsafe to Unsafe.  
231      [1997-07-11]      [1997-07-11]
232            Changed uses of System.Unsafe to Unsafe.
233    
   - Eliminated redefinition of Scheduler structure to avoid loss of inlining,  
     since the compiler handles this properly now.  
234      [1997-07-11]      [1997-07-11]
235            Eliminated redefinition of Scheduler structure to avoid loss of inlining,
236            since the compiler handles this properly now.
237    
   - Added Atom.atom' (tracking SML/NJ library changes)  
238      [1997-07-11]      [1997-07-11]
239            Added Atom.atom' (tracking SML/NJ library changes)
240    
   - Removed Array2:ARRAY2 from library, as this is now gone from the  
     SML/NJ library.  
241      [1997-06-30]      [1997-06-30]
242            Removed Array2:ARRAY2 from library, as this is now gone from the
243            SML/NJ library.
244    
245    
246  Version 1.0.7 (SML/NJ 109.29)  Version 1.0.7 (SML/NJ 109.29)
247  -----------------------------  -----------------------------
248    
   - Changed OS.IO.{pollErr,isErr} to OS.IO.{pollPri,isPri} (this tracks fixes  
     in the SML/NJ implementation of the SML Basis Library.  
249      [1997-06-11]      [1997-06-11]
250            Changed OS.IO.{pollErr,isErr} to OS.IO.{pollPri,isPri} (this tracks fixes
251            in the SML/NJ implementation of the SML Basis Library.
252    
   - Changes to src/Unix/posix-bin-prim-io.sml to track basis fixes.  
253      [1997-06-11]      [1997-06-11]
254            Changes to src/Unix/posix-bin-prim-io.sml to track basis fixes.
255    
256    
257  Version 1.0.6 (SML/NJ 109.28)  Version 1.0.6 (SML/NJ 109.28)
258  -----------------------------  -----------------------------
259    
260    - Added a temporary fix so that input operations do not cause the whole  [1997-05-21]
261            Added a temporary fix so that input operations do not cause the whole
262      CML system to block waiting for input.  Eventually, there should be a      CML system to block waiting for input.  Eventually, there should be a
263      CML version of the complete Posix API, which is the right way to avoid      CML version of the complete Posix API, which is the right way to avoid
264      this problem.      this problem.
     [1997-05-21]  
265    
266    - Added RunCML.exportFn.  [1997-05-21]
267            Added RunCML.exportFn.
268      NOTE: there are some problems with the size of exported images that      NOTE: there are some problems with the size of exported images that
269      need to be tracked down and fixed.      need to be tracked down and fixed.
     [1997-05-21]  
270    
271    
272  Version 1.0.5 (SML/NJ 109.26)  Version 1.0.5 (SML/NJ 109.26)
273  -----------------------------  -----------------------------
274    
   - Added SyncVar.{mSwap,mSwapEvt} operations, and changed the implementation  
     of multicast channels to use it.  
275      [1997-03-18]      [1997-03-18]
276            Added SyncVar.{mSwap,mSwapEvt} operations, and changed the implementation
277            of multicast channels to use it.
278    
   - Modified SyncVar.{mGet,mGetEvt} to resume other blocked threads (just  
     as iGet does).  
279      [1997-03-17]      [1997-03-17]
280            Modified SyncVar.{mGet,mGetEvt} to resume other blocked threads (just
281            as iGet does).
282    
   - Fixed a bug in SyncVar.{mTake,mTakeEvt}, where the cell was not getting  
     emptied in some execution paths.  
283      [1997-03-16]      [1997-03-16]
284            Fixed a bug in SyncVar.{mTake,mTakeEvt}, where the cell was not getting
285            emptied in some execution paths.
286    
287    - Added an "error thread," which is enqueued when CML is not running.  [1997-03-15]
288            Added an "error thread," which is enqueued when CML is not running.
289      This thread will get dispatched if someone tries to execute a CML      This thread will get dispatched if someone tries to execute a CML
290      operation without using RunCML.doit (not including channel allocation,      operation without using RunCML.doit (not including channel allocation,
291      etc.).  I also added a top-level call to Scheduler.reset, which will      etc.).  I also added a top-level call to Scheduler.reset, which will
292      ensure that the current thread ID is initialized.      ensure that the current thread ID is initialized.
     [1997-03-15]  
293    
   - Fixed a serious bug in SyncVar.{iPut,mPut}, where the cell was not  
     getting filled in some cases.  
294      [1997-03-13]      [1997-03-13]
295            Fixed a serious bug in SyncVar.{iPut,mPut}, where the cell was not
296            getting filled in some cases.
297    
298    
299  Version 1.0.4 (SML/NJ 109.25.2)  Version 1.0.4 (SML/NJ 109.25.2)
300  -------------------------------  -------------------------------
301    
302    - Added some additional modules to the CML Library: IOUtil:IO_UTIL and  [1997-02-28]
303            Added some additional modules to the CML Library: IOUtil:IO_UTIL and
304      KeywordsFn.  These were recent additions to the SML/NJ Library.  I also      KeywordsFn.  These were recent additions to the SML/NJ Library.  I also
305      reorganized the directory structure of the CML library to make it easier      reorganized the directory structure of the CML library to make it easier
306      to track changes in the SML/NJ Library.      to track changes in the SML/NJ Library.
     [1997-02-28]  
307    
   - Tracked changes in location of continuation operations changed in SML/NJ.  
308      [1997-02-28]      [1997-02-28]
309            Tracked changes in location of continuation operations changed in SML/NJ.
310    
311    
312  Version 1.0.3 (SML/NJ 109.25.1)  Version 1.0.3 (SML/NJ 109.25.1)
313  -------------------------------  -------------------------------
314    
   - Fixed bugs in the implementation of the pauseHook and schedulerHook in  
     RunCMLFn (missing atomicBegin).  
315      [1997-02-25]      [1997-02-25]
316            Fixed bugs in the implementation of the pauseHook and schedulerHook in
317            RunCMLFn (missing atomicBegin).
318    
   - Fixed bug in implementation of TraceCML when TraceToFile was set as the  
     destination.  
319      [1997-02-25]      [1997-02-25]
320            Fixed bug in implementation of TraceCML when TraceToFile was set as the
321            destination.
322    
   - Fixed bug in random access support in BinIOFn and TextIOFn (bug also in  
     SML/NJ implementation).  
323      [1997-02-18]      [1997-02-18]
324            Fixed bug in random access support in BinIOFn and TextIOFn (bug also in
325            SML/NJ implementation).
326    
   - Added logging/unlogging for global mailboxes.  
327      [1997-02-17]      [1997-02-17]
328            Added logging/unlogging for global mailboxes.
329    
   - Fixed bug in the TraceCML.unwatchThread.  Also changed the implementation  
     to avoid potential races between unwatching a thread and its termination.  
330      [1997-02-17]      [1997-02-17]
331            Fixed bug in the TraceCML.unwatchThread.  Also changed the implementation
332            to avoid potential races between unwatching a thread and its termination.
333    
334    - Various changes to the Scheduler module to improve robustness.  Added  [1997-02-15]
335            Various changes to the Scheduler module to improve robustness.  Added
336      an exception handler around the function in enqueueTmpThread.  Replaced      an exception handler around the function in enqueueTmpThread.  Replaced
337      enqueueCurThread with enqueueAndSwitchCurThread, which keeps the thread      enqueueCurThread with enqueueAndSwitchCurThread, which keeps the thread
338      ID bookkeeping in the same place.  And fixed a bug(?) where atomicSwitchTo      ID bookkeeping in the same place.  And fixed a bug(?) where atomicSwitchTo
339      was failing to set the current thread ID properly.      was failing to set the current thread ID properly.
     [1997-02-15]  
340    
   - Added sendPoll operation on channels to CML structure.  
341      [1997-02-04]      [1997-02-04]
342            Added sendPoll operation on channels to CML structure.
343    
344    
345  Version 1.0.2 (SML/NJ 109.25)  Version 1.0.2 (SML/NJ 109.25)
346  -----------------------------  -----------------------------
347    
   - Added documentation for the Multicast and TraceCML library modules.  
348      [1997-01-30]      [1997-01-30]
349            Added documentation for the Multicast and TraceCML library modules.
350    
   - Made minor improvements to the implementation of TraceCML.  
351      [1997-01-30]      [1997-01-30]
352            Made minor improvements to the implementation of TraceCML.
353    
354    - Changes to the SML/NJ system (available in 109.25) now make it possible  [1997-01-29]
355            Changes to the SML/NJ system (available in 109.25) now make it possible
356      to use the top-level print function in CML programs (it gets dynamically      to use the top-level print function in CML programs (it gets dynamically
357      rebound to CML's version of TextIO.print when a CML program starts running).      rebound to CML's version of TextIO.print when a CML program starts running).
     [1997-01-29]  
358    
   - Renamed CML.atEvt to CML.atTimeEvt.  
359      [1997-01-27]      [1997-01-27]
360            Renamed CML.atEvt to CML.atTimeEvt.
361    
   - Added SimpleRPC:SIMPLE_RPC to the CML library.  
362      [1997-01-26]      [1997-01-26]
363            Added SimpleRPC:SIMPLE_RPC to the CML library.
364    
   - Fixed a bug in the I/O manager for the case when two I/O events became  
     enabled for the same thread at the same time.  
365      [1997-01-26]      [1997-01-26]
366            Fixed a bug in the I/O manager for the case when two I/O events became
367            enabled for the same thread at the same time.
368    
369    
370  Version 1.0.1 (SML/NJ 109.22)  Version 1.0.1 (SML/NJ 109.22)
371  -----------------------------  -----------------------------
372    
   - Added UnixEnv:UNIX_ENV to the structures reexported from the CML library.  
373      [1996-11-09]      [1996-11-09]
374            Added UnixEnv:UNIX_ENV to the structures reexported from the CML library.
375    
   - Fixed bug in {TextIO,BinIO}.StreamIO.endOfStream, where more m-variable  
     was getting multiple puts.  
376      [1996-11-07]      [1996-11-07]
377            Fixed bug in {TextIO,BinIO}.StreamIO.endOfStream, where more m-variable
378            was getting multiple puts.
379    
380    
381  Version 1.0 (SML/NJ 109.21.1)  Version 1.0 (SML/NJ 109.21.1)
382  -----------------------------  -----------------------------
383    
   - Added version and banner to CML structure.  
384      [1996-11-01]      [1996-11-01]
385            Added version and banner to CML structure.
386    
   - Added CML version of Unix structure.  
387      [1996-11-01]      [1996-11-01]
388            Added CML version of Unix structure.
389    
   - Changed the implementation of the internal condition variables to make  
     them work correctly.  
390      [1996-11-01]      [1996-11-01]
391            Changed the implementation of the internal condition variables to make
392            them work correctly.
393    
   - Added implementation of OS.IO.poll and OS.IO.pollEvt.  
394      [1996-11-01]      [1996-11-01]
395            Added implementation of OS.IO.poll and OS.IO.pollEvt.
396    
   - Fixed implementation of Socket.connect.  
397      [1996-11-01]      [1996-11-01]
398            Fixed implementation of Socket.connect.
399    

Legend:
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changed lines
  Added in v.2271

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