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[smlnj] Diff of /sml/trunk/src/cml/CHANGES
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Diff of /sml/trunk/src/cml/CHANGES

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revision 651, Thu Jun 1 18:34:03 2000 UTC revision 1320, Wed Apr 9 22:13:23 2003 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  Version 1.0.13 (SML/NJ 110.9)  [2003-04-09]
5  -----------------------------          Changed the name of the directory cml-lib/cm to cml-lib/cm-descr
6            in order to avoid a name conflict with cml-lib/CM which gets
7    - Changes to I/O APIs to track basis changes (deleted in_pos support          created by the compilation manager.  (On case-insensitive
8      and changed type of StreamIO.mkInstream).          filesystems such as the one used by MacOS X the two names clash.)
9      [1998-10-16]  
10    [2002-10-01]
11            Fixed a bad space leak in the stream I/O implementations.  The
12            cleanup hooks were holding onto the initial buffer, which
13            meant that the entire buffer chain would remain live as long
14            as the stream was live.
15    
16    [2001-06-20]
17            Ported to SML/NJ 110.33 (in particular, the new CM).
18            Under the new CM, the CML library is known as $cml/cml.cm
19            and there is a CML-specific replacement for $/basis.cm
20            known as $cml/basis.cm.  Two additional libraries
21            ($cml/cml-internal.cm and $cml/core-cml.cm) are used
22            internally but should not be referred to directly by client code.
23            A CML-specific replacement for $/smlnj-lib.cm is
24            known as $cml-lib/smlnj-lib.cm.  The trace module is
25            $cml-lib/trace-cml.cm. (The aforementioned $cml/core-cml.cm
26            exists mainly to make it possible for $cml-lib/trace-cml.cm
27            to refer to it.)
28    
29    [2001-03-8]
30            Fixed a problem in the ordering of clean-up actions.  IO streams
31            were being cleaned before servers, which meant that servers could
32            not use I/O in initialization or shutdown.
33    
34    [2001-01-14]
35            Fixed a bug in the timeout manager.  Cleanup actions were being
36            executed twice, which breaks withNack.
37    
38    [2000-12-12]
39            Fixed a bug in the I/O manager (core-cml/io-manager.sml), where
40            if there were two threads blocked on the same descriptor (one
41            reading and one writing), the result might be matched to the
42            wrong thread.
43    
44    [2000-09-28]
45            Version 1.0.13 (SML/NJ Version 110.0.7)
46    
47    [2000-09-27]
48            Updated the CML Library to track additions to the SML/NJ Library.
49    
50    [1999-12-08]
51            Fixed a collection of bugs in event.sml related to the handling of
52            negative acknowledgements.
53    
54    [1999-12-01]
55            Modified RunCML.doit to install a dummy print hook.  This prevents
56            the bug of SML/NJ's print function being called during CML execution
57            (the CML print function is installed by code in TextIO, but that
58            code isn't loaded by CML when the application does not specifically
59            mention TextIO).
60    
61  Version 1.0.12 (SML/NJ 110.0.4 and 110.8)  Version 1.0.12 (SML/NJ 110.0.6 and 110.8)
62  -----------------------------------------  -----------------------------------------
63    
64    - Added preliminary Win32 implementation.  [1999-09-29]
65            Updated the CML Library to track additions to the SML/NJ Library.
66    
67    [1999-07-05]
68            Added support for Win32 sockets (thanks to Riccardo Pucella).
69    
70      [1998-08-04]      [1998-08-04]
71            Added preliminary Win32 implementation (thanks to Riccardo Pucella).
72    
   - Fixed type of inputLineEvt in CML_TEXT_STREAM_IO (thanks to A. Appel).  
73      [1998-06-01]      [1998-06-01]
74            Fixed type of inputLineEvt in CML_TEXT_STREAM_IO (thanks to A. Appel).
75    
   - Fixed bug in ChanIOFn (failure to spawn threads).  
76      [1998-03-12]      [1998-03-12]
77            Fixed bug in ChanIOFn (failure to spawn threads).
78    
79    
80  Version 1.0.11 (SML/NJ 109.33 and 110)  Version 1.0.11 (SML/NJ 109.33 and 110)
81  --------------------------------------  --------------------------------------
82    
   - Added TextIO.scanStream function.  
83      [1997-11-21]      [1997-11-21]
84            Added TextIO.scanStream function.
85    
   - Added import of PathUtil:PATH_UTIL to CML library.  
86      [1997-11-21]      [1997-11-21]
87            Added import of PathUtil:PATH_UTIL to CML library.
88    
89    
90  Version 1.0.10 (SML/NJ 109.32)  Version 1.0.10 (SML/NJ 109.32)
91  ------------------------------  ------------------------------
92    
   - Fixed a scheduler bug that occured when the atomicState was SignalPending  
     and atomicSwitchTo was used to exit the atomic region.  
93      [1997-09-18]      [1997-09-18]
94            Fixed a scheduler bug that occured when the atomicState was SignalPending
95            and atomicSwitchTo was used to exit the atomic region.
96    
   - Fixed a bug in the RunCML.doit code that prevented multiple runs (this bug  
     was exposed by the previous bug fix).  
97      [1997-09-15]      [1997-09-15]
98            Fixed a bug in the RunCML.doit code that prevented multiple runs (this bug
99            was exposed by the previous bug fix).
100    
   - Fixed a serious bug with the internal condition variables (Event.atomicCVarSet  
     was not changing the state of the variable).  
101      [1997-09-15]      [1997-09-15]
102            Fixed a serious bug with the internal condition variables (Event.atomicCVarSet
103            was not changing the state of the variable).
104    
   - Introduced datatype rebinding to eliminate some structure opening.  
105      [1997-09-15]      [1997-09-15]
106            Introduced datatype rebinding to eliminate some structure opening.
107    
   - Moved definition of tidToString to RepTypes, so that it can be used in  
     debugging the CML internals.  
108      [1997-09-14]      [1997-09-14]
109            Moved definition of tidToString to RepTypes, so that it can be used in
110            debugging the CML internals.
111    
112    - Server initialization/shutdown is now handled by a dedicated cleanup  [1997-09-12]
113            Server initialization/shutdown is now handled by a dedicated cleanup
114      routine.  Eventually, each server should define its own cleanup routine,      routine.  Eventually, each server should define its own cleanup routine,
115      and we'll get rid of logServer.      and we'll get rid of logServer.
     [1997-09-12]  
116    
   - Fixed bugs in the initialization and shutdown protocols for the standard  
     text streams.  
117      [1997-09-12]      [1997-09-12]
118            Fixed bugs in the initialization and shutdown protocols for the standard
119            text streams.
120    
121    
122  Version 1.0.9 (SML/NJ 109.31)  Version 1.0.9 (SML/NJ 109.31)
123  -----------------------------  -----------------------------
124    
   - Added cleanup code for the I/O stacks (including the standard I/O streams).  
125      [1997-09-02]      [1997-09-02]
126            Added cleanup code for the I/O stacks (including the standard I/O streams).
127    
128    - Implemented a clean-up mechansim that is similar to that provided by  [1997-08-29]
129            Implemented a clean-up mechansim that is similar to that provided by
130      SML/NJ.  The logging of global servers for initialization/shutdown      SML/NJ.  The logging of global servers for initialization/shutdown
131      is now done using cleaners, which provide somewhat finer control.      is now done using cleaners, which provide somewhat finer control.
132      Channel and mailbox logging is still supported, but the initialization      Channel and mailbox logging is still supported, but the initialization
133      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
134      of RunCML.      of RunCML.
     [1997-08-29]  
135    
   - Qualified the use of the "cont" type constructor, which is no longer  
     available at top level.  
136      [1997-08-28]      [1997-08-28]
137            Qualified the use of the "cont" type constructor, which is no longer
138            available at top level.
139    
   - Replaced a few holdover uses of "abstraction" with opaque signature matching.  
140      [1997-08-28]      [1997-08-28]
141            Replaced a few holdover uses of "abstraction" with opaque signature matching.
142    
143    - RunCML.doit now returns an OS.Process.status value.  If a CML program  [1997-08-15]
144            RunCML.doit now returns an OS.Process.status value.  If a CML program
145      uses OS.Process.{exit,terminate} to shutdown, then the status argument      uses OS.Process.{exit,terminate} to shutdown, then the status argument
146      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,
147      the OS.Process.failure is returned.      the OS.Process.failure is returned.
     [1997-08-15]  
148    
149    - Many changes to ensure that exportFn images do not include the entire  [1997-08-15]
150            Many changes to ensure that exportFn images do not include the entire
151      top-level environment.  These include: using SMLofNJ.isolate to create      top-level environment.  These include: using SMLofNJ.isolate to create
152      top-level continuations, and reimplementing RunCML.exportFn to do better      top-level continuations, and reimplementing RunCML.exportFn to do better
153      housekeeping.  To get this to work also required a number of changes      housekeeping.  To get this to work also required a number of changes
154      to the SML/NJ sources.      to the SML/NJ sources.
     [1997-08-15]  
155    
   - Fixed bug in scheduler, where a timer interrupt in an atomic region  
     was not getting marked by SignalPending.  
156      [1997-08-15]      [1997-08-15]
157            Fixed bug in scheduler, where a timer interrupt in an atomic region
158            was not getting marked by SignalPending.
159    
   - The TextIO.output* functions did not implement line buffering; this  
     has now been added.  
160      [1997-07-24]      [1997-07-24]
161            The TextIO.output* functions did not implement line buffering; this
162            has now been added.
163    
164    
165  Version 1.0.8 (SML/NJ 109.30)  Version 1.0.8 (SML/NJ 109.30)
166  -----------------------------  -----------------------------
167    
   - Changed uses of System.Unsafe to Unsafe.  
168      [1997-07-11]      [1997-07-11]
169            Changed uses of System.Unsafe to Unsafe.
170    
   - Eliminated redefinition of Scheduler structure to avoid loss of inlining,  
     since the compiler handles this properly now.  
171      [1997-07-11]      [1997-07-11]
172            Eliminated redefinition of Scheduler structure to avoid loss of inlining,
173            since the compiler handles this properly now.
174    
   - Added Atom.atom' (tracking SML/NJ library changes)  
175      [1997-07-11]      [1997-07-11]
176            Added Atom.atom' (tracking SML/NJ library changes)
177    
   - Removed Array2:ARRAY2 from library, as this is now gone from the  
     SML/NJ library.  
178      [1997-06-30]      [1997-06-30]
179            Removed Array2:ARRAY2 from library, as this is now gone from the
180            SML/NJ library.
181    
182    
183  Version 1.0.7 (SML/NJ 109.29)  Version 1.0.7 (SML/NJ 109.29)
184  -----------------------------  -----------------------------
185    
   - Changed OS.IO.{pollErr,isErr} to OS.IO.{pollPri,isPri} (this tracks fixes  
     in the SML/NJ implementation of the SML Basis Library.  
186      [1997-06-11]      [1997-06-11]
187            Changed OS.IO.{pollErr,isErr} to OS.IO.{pollPri,isPri} (this tracks fixes
188            in the SML/NJ implementation of the SML Basis Library.
189    
   - Changes to src/Unix/posix-bin-prim-io.sml to track basis fixes.  
190      [1997-06-11]      [1997-06-11]
191            Changes to src/Unix/posix-bin-prim-io.sml to track basis fixes.
192    
193    
194  Version 1.0.6 (SML/NJ 109.28)  Version 1.0.6 (SML/NJ 109.28)
195  -----------------------------  -----------------------------
196    
197    - Added a temporary fix so that input operations do not cause the whole  [1997-05-21]
198            Added a temporary fix so that input operations do not cause the whole
199      CML system to block waiting for input.  Eventually, there should be a      CML system to block waiting for input.  Eventually, there should be a
200      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
201      this problem.      this problem.
     [1997-05-21]  
202    
203    - Added RunCML.exportFn.  [1997-05-21]
204            Added RunCML.exportFn.
205      NOTE: there are some problems with the size of exported images that      NOTE: there are some problems with the size of exported images that
206      need to be tracked down and fixed.      need to be tracked down and fixed.
     [1997-05-21]  
207    
208    
209  Version 1.0.5 (SML/NJ 109.26)  Version 1.0.5 (SML/NJ 109.26)
210  -----------------------------  -----------------------------
211    
   - Added SyncVar.{mSwap,mSwapEvt} operations, and changed the implementation  
     of multicast channels to use it.  
212      [1997-03-18]      [1997-03-18]
213            Added SyncVar.{mSwap,mSwapEvt} operations, and changed the implementation
214            of multicast channels to use it.
215    
   - Modified SyncVar.{mGet,mGetEvt} to resume other blocked threads (just  
     as iGet does).  
216      [1997-03-17]      [1997-03-17]
217            Modified SyncVar.{mGet,mGetEvt} to resume other blocked threads (just
218            as iGet does).
219    
   - Fixed a bug in SyncVar.{mTake,mTakeEvt}, where the cell was not getting  
     emptied in some execution paths.  
220      [1997-03-16]      [1997-03-16]
221            Fixed a bug in SyncVar.{mTake,mTakeEvt}, where the cell was not getting
222            emptied in some execution paths.
223    
224    - Added an "error thread," which is enqueued when CML is not running.  [1997-03-15]
225            Added an "error thread," which is enqueued when CML is not running.
226      This thread will get dispatched if someone tries to execute a CML      This thread will get dispatched if someone tries to execute a CML
227      operation without using RunCML.doit (not including channel allocation,      operation without using RunCML.doit (not including channel allocation,
228      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
229      ensure that the current thread ID is initialized.      ensure that the current thread ID is initialized.
     [1997-03-15]  
230    
   - Fixed a serious bug in SyncVar.{iPut,mPut}, where the cell was not  
     getting filled in some cases.  
231      [1997-03-13]      [1997-03-13]
232            Fixed a serious bug in SyncVar.{iPut,mPut}, where the cell was not
233            getting filled in some cases.
234    
235    
236  Version 1.0.4 (SML/NJ 109.25.2)  Version 1.0.4 (SML/NJ 109.25.2)
237  -------------------------------  -------------------------------
238    
239    - Added some additional modules to the CML Library: IOUtil:IO_UTIL and  [1997-02-28]
240            Added some additional modules to the CML Library: IOUtil:IO_UTIL and
241      KeywordsFn.  These were recent additions to the SML/NJ Library.  I also      KeywordsFn.  These were recent additions to the SML/NJ Library.  I also
242      reorganized the directory structure of the CML library to make it easier      reorganized the directory structure of the CML library to make it easier
243      to track changes in the SML/NJ Library.      to track changes in the SML/NJ Library.
     [1997-02-28]  
244    
   - Tracked changes in location of continuation operations changed in SML/NJ.  
245      [1997-02-28]      [1997-02-28]
246            Tracked changes in location of continuation operations changed in SML/NJ.
247    
248    
249  Version 1.0.3 (SML/NJ 109.25.1)  Version 1.0.3 (SML/NJ 109.25.1)
250  -------------------------------  -------------------------------
251    
   - Fixed bugs in the implementation of the pauseHook and schedulerHook in  
     RunCMLFn (missing atomicBegin).  
252      [1997-02-25]      [1997-02-25]
253            Fixed bugs in the implementation of the pauseHook and schedulerHook in
254            RunCMLFn (missing atomicBegin).
255    
   - Fixed bug in implementation of TraceCML when TraceToFile was set as the  
     destination.  
256      [1997-02-25]      [1997-02-25]
257            Fixed bug in implementation of TraceCML when TraceToFile was set as the
258            destination.
259    
   - Fixed bug in random access support in BinIOFn and TextIOFn (bug also in  
     SML/NJ implementation).  
260      [1997-02-18]      [1997-02-18]
261            Fixed bug in random access support in BinIOFn and TextIOFn (bug also in
262            SML/NJ implementation).
263    
   - Added logging/unlogging for global mailboxes.  
264      [1997-02-17]      [1997-02-17]
265            Added logging/unlogging for global mailboxes.
266    
   - Fixed bug in the TraceCML.unwatchThread.  Also changed the implementation  
     to avoid potential races between unwatching a thread and its termination.  
267      [1997-02-17]      [1997-02-17]
268            Fixed bug in the TraceCML.unwatchThread.  Also changed the implementation
269            to avoid potential races between unwatching a thread and its termination.
270    
271    - Various changes to the Scheduler module to improve robustness.  Added  [1997-02-15]
272            Various changes to the Scheduler module to improve robustness.  Added
273      an exception handler around the function in enqueueTmpThread.  Replaced      an exception handler around the function in enqueueTmpThread.  Replaced
274      enqueueCurThread with enqueueAndSwitchCurThread, which keeps the thread      enqueueCurThread with enqueueAndSwitchCurThread, which keeps the thread
275      ID bookkeeping in the same place.  And fixed a bug(?) where atomicSwitchTo      ID bookkeeping in the same place.  And fixed a bug(?) where atomicSwitchTo
276      was failing to set the current thread ID properly.      was failing to set the current thread ID properly.
     [1997-02-15]  
277    
   - Added sendPoll operation on channels to CML structure.  
278      [1997-02-04]      [1997-02-04]
279            Added sendPoll operation on channels to CML structure.
280    
281    
282  Version 1.0.2 (SML/NJ 109.25)  Version 1.0.2 (SML/NJ 109.25)
283  -----------------------------  -----------------------------
284    
   - Added documentation for the Multicast and TraceCML library modules.  
285      [1997-01-30]      [1997-01-30]
286            Added documentation for the Multicast and TraceCML library modules.
287    
   - Made minor improvements to the implementation of TraceCML.  
288      [1997-01-30]      [1997-01-30]
289            Made minor improvements to the implementation of TraceCML.
290    
291    - Changes to the SML/NJ system (available in 109.25) now make it possible  [1997-01-29]
292            Changes to the SML/NJ system (available in 109.25) now make it possible
293      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
294      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]  
295    
   - Renamed CML.atEvt to CML.atTimeEvt.  
296      [1997-01-27]      [1997-01-27]
297            Renamed CML.atEvt to CML.atTimeEvt.
298    
   - Added SimpleRPC:SIMPLE_RPC to the CML library.  
299      [1997-01-26]      [1997-01-26]
300            Added SimpleRPC:SIMPLE_RPC to the CML library.
301    
   - 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.  
302      [1997-01-26]      [1997-01-26]
303            Fixed a bug in the I/O manager for the case when two I/O events became
304            enabled for the same thread at the same time.
305    
306    
307  Version 1.0.1 (SML/NJ 109.22)  Version 1.0.1 (SML/NJ 109.22)
308  -----------------------------  -----------------------------
309    
   - Added UnixEnv:UNIX_ENV to the structures reexported from the CML library.  
310      [1996-11-09]      [1996-11-09]
311            Added UnixEnv:UNIX_ENV to the structures reexported from the CML library.
312    
   - Fixed bug in {TextIO,BinIO}.StreamIO.endOfStream, where more m-variable  
     was getting multiple puts.  
313      [1996-11-07]      [1996-11-07]
314            Fixed bug in {TextIO,BinIO}.StreamIO.endOfStream, where more m-variable
315            was getting multiple puts.
316    
317    
318  Version 1.0 (SML/NJ 109.21.1)  Version 1.0 (SML/NJ 109.21.1)
319  -----------------------------  -----------------------------
320    
   - Added version and banner to CML structure.  
321      [1996-11-01]      [1996-11-01]
322            Added version and banner to CML structure.
323    
   - Added CML version of Unix structure.  
324      [1996-11-01]      [1996-11-01]
325            Added CML version of Unix structure.
326    
   - Changed the implementation of the internal condition variables to make  
     them work correctly.  
327      [1996-11-01]      [1996-11-01]
328            Changed the implementation of the internal condition variables to make
329            them work correctly.
330    
   - Added implementation of OS.IO.poll and OS.IO.pollEvt.  
331      [1996-11-01]      [1996-11-01]
332            Added implementation of OS.IO.poll and OS.IO.pollEvt.
333    
   - Fixed implementation of Socket.connect.  
334      [1996-11-01]      [1996-11-01]
335            Fixed implementation of Socket.connect.
336    

Legend:
Removed from v.651  
changed lines
  Added in v.1320

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