I am looking for a working distribution of SQLite for OpenVMS. I tried building SQLite 3.7.9 from the amalgamation file, using patches I found in a mailing list, but it does not quite work.
I am using HP C V7.1-015 on OpenVMS Alpha 7.3-2.
Since I cannot install python, which seems to include SQLite3, I have to build from sources.
I compile using the following commands:
$ CC /OPTIMIZE -
/DEFINE=(SQLITE_THREADSAFE=0, -
SQLITE_OMIT_LOAD_EXTENSION=1, -
SQLITE_OMIT_COMPILEOPTION_DIAGS=1, -
SQLITE_OMIT_MEMORYDB=1, -
SQLITE_OMIT_TEMPDB=1, -
SQLITE_OMIT_DEPRECATED=1, -
SQLITE_OMIT_SHARED_CACHE=1, -
_USE_STD_STAT=ENABLE) -
/FLOAT=IEEE_FLOAT -
sqlite3.c
$ CC /OPTIMIZE -
/DEFINE=(SQLITE_THREADSAFE=0, -
SQLITE_OMIT_LOAD_EXTENSION=1, -
SQLITE_OMIT_COMPILEOPTION_DIAGS=1, -
SQLITE_OMIT_MEMORYDB=1, -
SQLITE_OMIT_TEMPDB=1, -
SQLITE_OMIT_DEPRECATED=1, -
SQLITE_OMIT_SHARED_CACHE=1, -
_USE_STD_STAT=ENABLE) -
/FLOAT=IEEE_FLOAT -
shell.c
I copied the defines from the mailing list, and added /FLOAT=IEEE_FLOAT to get rid of most warnings regarding floating points (related to overflows due to exponent 308).
During compilation I got some informationals and warnings.
I get the following messages while linking:
$ LINK shell.obj,sqlite3.obj
...
%LINK-W-NUDFSYMS, 2 undefined symbols:
%LINK-I-UDFSYM, __STD_FSTAT
%LINK-I-UDFSYM, __STD_STAT
...
Since I am a little bit lost here, I rather have SQLite3 sources which compile on OpenVMS.
The specific problem you're getting from the linker arises from the fact that you've requested capability at compile time that your system doesn't have. I believe the _USE_STD_STAT option first became available in OpenVMS v8.2, yet you're on 7.3-2. Your compiler and your headers know what to do when _USE_STD_STAT is defined, but the functions to process the X/Open-compliant stat structure do not exist in the C run-time (CRTL in VMS parlance) on your system, and your linker is telling you, "ain't got those functions."
Ideally you would be able to upgrade your operating system. Current as of this writing is v8.4. v7.3-2 was released eight and a half years ago and v8.2 over seven years ago. I understand that there are technical, budgetary, and even political reason that upgrades aren't always possible. If it were me, and I were stuck on OpenVMS Alpha v7.3-2, I would try removing the _USE_STD_STAT=ENABLE from the compilation and see what blows up.
One of the side effects of enabling _USE_STD_STAT is that you also get _LARGEFILE along with it. If that's the only reason SQLite needs the option, you may be fine but limited to 4GB databases. I suspect there's more to it than that, i.e., SQLite very likely makes use of elements in the stat structure that do actually require the newer structure.
You can read up on the differences in the traditional and standards-compliant stat structures at http://h71000.www7.hp.com/doc/84final/5763/5763profile_062.html#index_x_1699.
I've recently improved my VMSish patch for SQLite and made it available for SQLite version 3.7.14.1: http://www.mail-archive.com/sqlite-users#sqlite.org/msg73570.html (or http://sqlite.1065341.n5.nabble.com/Building-SQLite-3-7-14-1-for-OpenVMS-td65277.html).
POSIX locking still doesn't work though, and I was unable to find out why.
Well, there was a message on the sqlite-users mailing list on getting SQLite 3.7.9 working on OpenVMS. I don't know how relevant that is to the version you've got (or if the patch was adopted by the SQLite developers; they're a bit picky for legal reasons IIRC) but it looks likely to be useful. Good luck.
Related
I am a beginner to programming. I am trying to run a simulation of a combustion chamber using reactingFoam.
I have modified the counterflow2D tutorial.
For those who maybe don't know OpenFOAM, it is a programme built in C++ but it does not require C++ programming, just well-defining the variables in the files needed.
In one of my first tries I have made a very simple model but since I wanted to check it very well I set it to 60 seconds with a 1e-6 timestep.
My computer is not very powerful so it took me for a day aprox. (by this I mean I'd like to find a solution rather than repeating the simulation).
I executed the solver reactingFOAM using 4 processors in parallel using
mpirun -np 4 reactingFOAM -parallel > log
The log does not show any evidence of error.
The problem is that when I use reconstructPar it works perfectly but then I try to watch the results with paraFoam and this error is shown:
From function bool Foam::IOobject::readHeader(Foam::Istream&)
in file db/IOobject/IOobjectReadHeader.C at line 88
Reading "mypath/constant/reactions" at line 1
First token could not be read or is not the keyword 'FoamFile'
I have read that maybe some files are empty when they are not supposed to be so, but I have not found that problem.
My 'reactions' file have not been modified from the tutorial and has always worked.
edit:
Sorry for the vague question. I have modified it a bit.
A typical OpenFOAM dictionary file always contains a Foam::Istream named FoamFile. An example from a typical system/controlDict file can be seen below:
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object controlDict;
}
During the construction of the dictionary header, if this Istream is absent, OpenFOAM ceases its operation by raising an error message that you have experienced:
First token could not be read or is not the keyword 'FoamFile'
The benefit of the header is possibly to contribute OpenFOAM's abstraction mechanisms, which would be difficult otherwise.
As mentioned in the comments, adding the header entity almost always solves this problem.
I need to import the Geonames database (http://download.geonames.org/export/dump/) into SQLite (file is about a gigabyte in size, ±8,000,000 records, tab-delimited).
I'm using the built-in SQLite-possibilities of Mac OS X, accessed through terminal. All goes well, until record 381174 (tested with older file, the exact number varies slightly depending on the exact version of the Geonames database, as it is updated every few days), where the error "expected 19 columns of data but found 18" is displayed.
The exact line causing the problem is:
126704 Gora Kyumyurkey Gora Kyumyurkey Gora Kemyurkey,Gora
Kyamyar-Kup,Gora Kyumyurkey,Gora Këmyurkëy,Komur Qu",Komur
Qu',Komurkoy Dagi,Komūr Qū’,Komūr Qū”,Kummer Kid,Kömürköy Dağı,kumwr
qwʾ,كُمور
قوء 38.73335 48.24133 T MT AZ AZ 00 0 2471 Asia/Baku 2014-03-05
I've tested various countries separately, and the western countries all completely imported without a problem, causing me to believe the problem is somewhere in the exotic characters used in some entries. (I've put this line into a separate file and tested with several other database-programs, some did give an error, some imported without a problem).
How do I solve this error, or are there other ways to import the file?
Thanks for your help and let me know if you need more information.
Regarding the question title, a preliminary search resulted in
the GeoNames format description ("tab-delimited text in utf8 encoding")
https://download.geonames.org/export/dump/readme.txt
some libraries (untested):
Perl: https://github.com/mjradwin/geonames-sqlite (+ autocomplete demo JavaScript/PHP)
PHP: https://github.com/robotamer/geonames-to-sqlite
Python: https://github.com/commodo/geonames-dump-to-sqlite
GUI (mentioned by #charlest):
https://github.com/sqlitebrowser/sqlitebrowser/
The SQLite tools have import capability as well:
https://sqlite.org/cli.html#csv_import
It looks like a bi-directional text issue. "كُمور قوء" is expected to be at the end of the comma-separated alternate name list. However, on account of it being dextrosinistral (or RTL), it's displaying on the wrong side of the latitude and longitude values.
I don't have visibility of your import method, but it seems likely to me that that's why it thinks a column is missing.
I found the same problem using the script from the geonames forum here: http://forum.geonames.org/gforum/posts/list/32139.page
Despite adjusting the script to run on Mac OS X (Sierra 10.12.6) I was getting the same errors. But thanks to the script author since it helped me get the sqlite database file created.
After a little while I decided to use the sqlite DB Browser for SQLite (version 3.11.2) rather than continue with the script.
I had errors with this method as well and found that I had to set the "Quote character" setting in the import dialog to the blank state. Once that was done the import from the FULL allCountries.txt file ran to completion taking just under an hour on my MacBookPro (an old one but with SSD).
Although I have not dived in deeper I am assuming that the geonames text files must not be quote parsed in any way. Each line simply needs to be handled as tab delimited UTF-8 strings.
At the time of writing allCountries.txt is 1.5GB with 11,930,517 records. SQLite database file is just short of 3GB.
Hope that helps.
UPDATE 1:
Further investigation has revealed that it is indeed due to the embedded quotes in the geonames files, and looking here: https://sqlite.org/quirks.html#dblquote shows that SQLite has problems with quotes. Hence you need to be able to switch off quote parsing in SQLite.
Despite the 3.11.2 version of DB Browser being based on SQLite 3.27.2 which does not have the required mods to ignore the quotes, I can only assume it must be escaping the quotes when you set the "Quote character" to blank.
I'm making a Turbo Pascal 7.0 program for my class, it has to be on Graphic Mode.
A message pops up
BGI Error: Graphics not initialized (use InitGraph).
I'm already using InitGraph and graph.tpu and I specified the route as "C:\TP7\BGI".
My S.O is Windows 7 and I'm using DosBox 0.74, I already tried to paste all the files from the folder BGI into BIN.
What should I do?
Since dos doesn't have system graphic drivers, the BGI functions as such for BP7.
So in short, use a BGI suitable for your videocard. The ones supplied with BP7 are very old, there are newer, VESA ones that you could try.
Afaik 3rd party BGI needs to be registered explicitly in code though.
At first I have had this "missing Graph.tpu"- ... and later the "Use Initgraph"-issue too.
After hours trying (and reading some not politeful comments in the internet) I finally got Turbo Pascal 7 succesfully running (in Windows 10, x64). In summary I want to share "some secrets":
install the "TP(WDB)-7.3.5-Setup.msi" (comes from clever people in Vietnam)
make sure, that there's the CORRECT PATH to the "BGI"-directory in your program-code. For example:
driver := Detect;
InitGraph (driver, modus, 'c:\TPWDB\BGI');
(By the way: This is ALL, what's there to do with "Initgraph".)
make sure, that in TP7 under "Options" --> "Directories" are the CORRECT PATHS both to "C:\TPWDB\UNITS" and Your actual working dir e.g. "C:\TPWDB\myPrograms"
THAT's IT.
Annotations: The "Graph.TPU" (usually) is already in "UNITS" (together with "Graph3.tpu" by the way).
Hazzling around old driver's isn't needed even... :)
Just the correct paths... :)
Hope, that can help ...
I've seen both:
#!/path/...
#! /path/...
What's right? Does it matter? Is there a history?
I've heard that an ancient version of Unix required there not be a space. But then I heard that was just a rumor. Does anyone know for certain?
Edit: I couldn't think where better to ask this. It is programming related, since the space could make the program operate in a different way, for all I know. Thus I asked it here.
I also have a vague memory that whitespace was not allowed in some old Unix-like systems, but a bit of research doesn't support that.
According to this Wikipedia article, the #! syntax was introduced in Version 8 Unix in January, 1980. Dennis Ritchie's initial announcement of this feature says:
The system has been changed so that if a file being executed begins
with the magic characters #!, the rest of the line is understood to
be the name of an interpreter for the executed file. Previously (and
in fact still) the shell did much of this job; it automatically
executed itself on a text file with executable mode when the text
file's name was typed as a command. Putting the facility into the
system gives the following benefits.
[SNIP]
To take advantage of this wonderful opportunity, put
#! /bin/sh
at the left margin of the first line of your shell scripts. Blanks
after ! are OK. Use a complete pathname (no search is done). At the
moment the whole line is restricted to 16 characters but this limit
will be raised.
It's conceivable that some later Unix-like system supported the #! syntax but didn't allow blanks after the !, but given that the very first implementation explicitly allowed blanks, that seems unlikely.
leonbloy's answer provides some more context.
UPDATE :
The Perl interpreter itself recognizes a line starting with #!, even on systems where that's not recognized by the kernel. Run perldoc perlrun or see this web page for details.
The #! line is always examined for switches as the line is being
parsed. Thus, if you're on a machine that allows only one argument
with the #! line, or worse, doesn't even recognize the #! line, you
still can get consistent switch behaviour regardless of how Perl was
invoked, even if -x was used to find the beginning of the program.
Perl also permits whitespace after the #!.
(Personally, I prefer to write the #! line without whitespace, but it will work either way.)
And leonjoy's answer points to this web page by Sven Mascheck, which discusses the history of #! in depth. (I mention this now because of a recent discussion on comp.unix.shell.)
It seems to usually work both ways. See here. I'd say that the no-space version is much more common today, and, to me, much more appealing.
BTW, this is not specifically related to Perl (but it's definitely related to programming).
VendorString() doesn't work, it's always Sun Microsystems, even if it is Xorg built for Solaris.
$ xdpyinfo | grep vendor
vendor string: The X.Org Foundation
vendor release number: 10601901
This is xorg-server 1.6.1 on Linux. Hopefully XOrg and XSun on Solaris will differ here.
To output these two fields, xdpyinfo calls the ServerVendor macro to determine the vendor, then parses the return of the VendorRelease macro differently depending on what ServerVendor was.
By the way, what's VendorString()? I don't have a function or macro by that name...
It's possibly a little hacky, but if you look at the list of extensions returned from Xsun and Xorg you should see that Xorg has a few extra XFree86-derived extensions.
xdpyinfo can be used to list the extensions via the command-line to check for differences; programmatically you can use XListExtensions() or XQueryExtension().
(I haven't got a Xsun X Server to hand but I'm pretty sure when I've looked in the past they have differed quite abit).
Thank you!
Oops, VendorRelease() string it is.
Anyway, unfortunately we cannot bet on this string. It changes often enough to have a trouble, for Xsun as well as for Xorg. I have found a solution working (hopefully) for them and for various other (derived) servers like Xvfb, Xnest etc.
Xsun does use a third value in an array of the keysyms for KP_ (numpad) keycodes. Xorg uses 1-st or 2-nd. A sniffer should first, obtain a keycode for a KP_ keysym, for instance XK_KP_7,
second, sniff what is in the XKeycodeToKeysym(d,keycode, [0-3]). Our XK_KP_7 will be on the index 2 for Xsun.