Re: NIM Integration Problems with Server Side Postgres

2020-05-20 Thread panchove 
Good news:

It worked perfectly !!

Thanks to both!

Re: NIM Integration Problems with Server Side Postgres

2020-05-20 Thread JPLRouge 
hello:-d:useMalloc|   
---|---  
  
I feel like I'm faster, is true

Re: NIM Integration Problems with Server Side Postgres

2020-05-20 Thread panchove 
Hello, thanks for answering

I compile and link in this way 


$ (MY_LIB_NIM): * .nim Makefile
 nim c -d: release --passC: -fPIC --noMain --opt: speed --app: 
staticlib --outdir: $ (NIM_OUTDIR) --nimcache: $ (NIM_CACHEDIR) --out: $ 
(basename $ < ) .a --header: $ (basename $ <). h $ <

% .o:% .c Makefile
 gcc -std = c11 -fPIC -O2 -D_GNU_SOURCE -c $ <-I $ (PG_SERVER_INC) 
-I $ (NIM_INCLUDE_BASE) -I $ (NIM_INCLUDE_LOCAL)

$ (MY_LIB_GCC): $ (MY_OBJS)
 gcc -shared -fPIC -O2 $ ^ $ (MY_LIB_NIM) -o $ @



Run

I will test with the parameters you indicate

Re: NIM Integration Problems with Server Side Postgres

2020-05-20 Thread cdome 
Do you compile to shared library? Things to check: You do call NimMain or 
setupForeignThreadGC.

Another thing I recommend trying is to compile with \--gc:arc -d:useMalloc this 
gives you garbage collection free environment that will ease integration with 
postgres.

NIM Integration Problems with Server Side Postgres

2020-05-20 Thread panchove 
Hello everyone

I am trying to integrate two server side test functions with Postgres the first 
one, nimAddOne (int): int works fine integrate it like this:


# AddOne adds one to the given arg and retuns it
proc nimAddOne (i: cint): cint {.exportc.} =
result = i + 1


Run

I made the call from C this way:


#include "postgres.h"
#include "fmgr.h"
#undef HAVE_STDINT_H
#include "converter.h"

PG_FUNCTION_INFO_V1 (c_addone);

Datum
c_addone (PG_FUNCTION_ARGS)
{
int32 arg = PG_GETARG_INT32 (0);
int32 result = nimAddOne (arg);
PG_RETURN_INT32 (result);
}


Run

But when I pass strings to another function like this:


# ConcatName concat name and last name
proc nimConcatName (name, last: cstring): cstring {.exportc.} =
var r: cstring
r = $ name & "" & $ last
result = r


Run

And calling it from C like this


#include "postgres.h"
#include "fmgr.h"
#include "utilities.h"
#undef HAVE_STDINT_H
#include "converter.h"

PG_FUNCTION_INFO_V1 (c_fullname);

Datum
c_fullname (PG_FUNCTION_ARGS)
{

text * ptrName = PG_GETARG_TEXT_PP (0);
text * ptrLast = PG_GETARG_TEXT_PP (1);

const char * name = GetStringFromText (ptrName);
const char * last = GetStringFromText (ptrLast);

char * result = nimConcatName ((char *) name, (char *) last);

elog (INFO, "% s", result);

text * ptrResult = (text *) GetTextFromString (result);

PG_RETURN_TEXT_P (ptrResult);
}


Run

Postgres server goes down hopelessly

Could you tell me what I do wrong in the second function?

Thank you!

NOTES: "converter.h" contains the base NIM types after compiling the 
"converter.nim" file that contains both functions