OS/2 Shareware BBS: 8 Other/08-Other.zip/libup5.exe/CHANGES.410

Text File | 1995-03-16 | 6KB | 125 lines

CLIB.NLM 4.1D Quarterly Release
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Symptom : API NWQScanJobNums would sometimes return an incorrect
          queueSequence.

Solution: The previous calculation was only correct for the first
          iteration, when the initial value is set to zero.  After the first
          iteration a job position gets skipped each subsequent itteration.
          It has also been determined that the "proper" initial value is one
          instead of zero.  The fixed code works correctly with either
          initial value, but using a 1 on CLIB.NLM without this fix will cause
          problems if more than one scan is done.


Symptom : Using Meridian Technologies TCP/Crossprint (TCPCP.NLM),
          it has been observed that ResumeThread will abend the server
          when used on a thread that no longer exists.  This apparently
          did not occur before in 4.01 and 4.02.

Solution: Added to ResumeThread the call Validate Mapped Memory to
          check if we are getting a pointer passed-in which is not mapped
          in.


Symptom : Unresolved symbols Alloc and Free appearing while compiling
          with Watcom Compiler.

Solution: Added Alloc and Free back into CLIB.IMP because the
          Watcom C++ static link library expects them to be available.
          Even though CLIB still want people to move away from using
          them and that's why they have been rightly removed from CLIB.IMP,
          the fact that Watcom's static link library references them
          makes it necessary to put these symbols back in CLIB.IMP.


Symptom : NLM Headers are not compiling correctly with the latest
          Watcom SDK.

Solution: Made changes to be compatible with the Watcom C++
          compilers / static linked C++ support library. A problem in
          ctype.h was found, in which signed pointer arithmetic was done
          instead of unsigned arithmetic. The following new header files
          are needed to avoid conflicts while compiling with WATCOM 9.5 and
      above.
      CTYPE.H, FLOAT.H, NWLOCALE.H, NWCONN.H,
          NEWIN400.H, OSITLI.H, CONIO.H, PROCESS.H,
          SETJMP.H, STDIO.H, LIBRARY.H, ADVANCED.H,
          STRING.H, MATH.H, STDDEF.H, STDLIB.H,
          SYS/SOCKET.H, SYS/BSDSKT.H.
      These header files are found on CompuServe in the NDEVSUP form,
      directory, 05. The file is called UW10.EXE.


Symptom : With the NFS Gateway loaded, any attempt by an NLM to
          access the "switched" volumes will cause the server to AbEnd. The
          "switched" volumes are those that are available to the NCP
          clients by the gateway, but are actually an exported path on the
          host UNIX box.

Solution: The APIs, GetVolumeStatistics() and GetVolumeInformation()
          conditionalized the access to a NetWare OS call since it is not
          accessible on a remote volume (volume switched).


Symptom : API DownFileServer was not working correctly on the
          IOEngine of SFT III.

Solution: On the IOEngine DownFileServer was calling an OS call that
          did not exist.CLIB has conditionalized the access to the OS call.

Symptom : 4.1 server abends in NXPIP - in Get_SNMP_REQUEST.

Solution: The NXPIP calls select (CLIB), which calls bsd_select (CLIB),
          which calls ScheduleNoSleepAESEvent (CLIB).  If some rare case,
          an AESProcessStructure may be located at the same address as
          an old AESProcessStructure. When this happens, the
          AOldLink field may be some valid value.
          ScheduleNoSleepAESEvent was not setting the AOldLink flag
          to NULL.

Symptom : API __Open() functionallity changed.

Solution: Added pre_401d_functionality to __open() so Artisoft
      and Gupta work when same process is opening the same file
          multiple times  (Pass in the shflag with the high bit set).


Symptom : When running Advantage Xbase Server on a 3.12 system, the
          connection between the client and the Xbase server will hang.
          If you attempt to clear the connection by MONITOR, monitor
          will also hang.

Solution: The problem appears to be a timing issue. When the timing is
          just right we have a deadlock situation. Here is what is
          happening. A certain thread will call EnterCritSec twice before
          calling ExitCritSec. This disables all other threads in the NLM.
          This thread will continue to call EnterCritSec and ExitCritSec
          until it calls DisableConnection.  Now after Disable connection
          it calls open which blocks. Once the thread blocks it will notice
          that its nested count for the critsec is up one (because of the
          two in a row) . It will then put itself to sleep until another
          ExitCritSec is called. This never happens and the connection
          stays disabled.


Symptom : Changing the IP address of a server while NFS modules are
          loaded, then unloading those modules (unistop.ncf) AbEnds a
          NetWare 4.10 server.  NFS is v2.0 (rel 30.18).

Solution: Disabled the return flags in the timer handler which fixes the
          problem.


Symptom : API NFSParsePath() changed fuctionallity.

Solution: NFSParsePath() has been updated to be exactly like it was prior
          to Feb. '93 which was the date a change was made to use
          NWLstrchr() instead of strtok(), thus breaking the NFS path
          parser.


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