ltree_plpython.c File Reference

#include "postgres.h"
#include "fmgr.h"
#include "ltree/ltree.h"
#include "plpython.h"

Include dependency graph for ltree_plpython.c:

Go to the source code of this file.

Macros
#define	PLyUnicode_FromStringAndSize   PLyUnicode_FromStringAndSize_p

Typedefs
typedef PyObject *(*	PLyUnicode_FromStringAndSize_t) (const char *s, Py_ssize_t size)

Functions
void	_PG_init (void)
	PG_FUNCTION_INFO_V1 (ltree_to_plpython)
Datum	ltree_to_plpython (PG_FUNCTION_ARGS)

Variables
	PG_MODULE_MAGIC
static PLyUnicode_FromStringAndSize_t	PLyUnicode_FromStringAndSize_p

Macro Definition Documentation

PLyUnicode_FromStringAndSize

#define PLyUnicode_FromStringAndSize   PLyUnicode_FromStringAndSize_p

Definition at line 29 of file ltree_plpython.c.

Typedef Documentation

PLyUnicode_FromStringAndSize_t

typedef PyObject*(* PLyUnicode_FromStringAndSize_t) (const char *s, Py_ssize_t size)

Definition at line 10 of file ltree_plpython.c.

Function Documentation

_PG_init()

void _PG_init

(

void

)

Definition at line 18 of file ltree_plpython.c.

{
    /* Asserts verify that typedefs above match original declarations */
    AssertVariableIsOfType(&PLyUnicode_FromStringAndSize, PLyUnicode_FromStringAndSize_t);
    PLyUnicode_FromStringAndSize_p = (PLyUnicode_FromStringAndSize_t)
        load_external_function("$libdir/" PLPYTHON_LIBNAME, "PLyUnicode_FromStringAndSize",
                               true, NULL);
}

References AssertVariableIsOfType, load_external_function(), PLyUnicode_FromStringAndSize, and PLyUnicode_FromStringAndSize_p.

ltree_to_plpython()

Datum ltree_to_plpython

(

PG_FUNCTION_ARGS

)

Definition at line 35 of file ltree_plpython.c.

{
    ltree      *in = PG_GETARG_LTREE_P(0);
    int         i;
    PyObject   *list;
    ltree_level *curlevel;
 
    list = PyList_New(in->numlevel);
    if (!list)
        ereport(ERROR,
                (errcode(ERRCODE_OUT_OF_MEMORY),
                 errmsg("out of memory")));
 
    curlevel = LTREE_FIRST(in);
    for (i = 0; i < in->numlevel; i++)
    {
        PyList_SetItem(list, i, PLyUnicode_FromStringAndSize(curlevel->name, curlevel->len));
        curlevel = LEVEL_NEXT(curlevel);
    }
 
    PG_FREE_IF_COPY(in, 0);
 
    return PointerGetDatum(list);
}

References ereport, errcode(), errmsg(), ERROR, i, ltree_level::len, LEVEL_NEXT, sort-test::list, LTREE_FIRST, ltree_level::name, ltree::numlevel, PG_FREE_IF_COPY, PG_GETARG_LTREE_P, PLyUnicode_FromStringAndSize, and PointerGetDatum().

PG_FUNCTION_INFO_V1()

PG_FUNCTION_INFO_V1

(

ltree_to_plpython

)

Variable Documentation

PG_MODULE_MAGIC

PG_MODULE_MAGIC

Definition at line 7 of file ltree_plpython.c.

PLyUnicode_FromStringAndSize_p

PLyUnicode_FromStringAndSize_t PLyUnicode_FromStringAndSize_p

static

Definition at line 11 of file ltree_plpython.c.

Referenced by _PG_init().