PostgreSQL Source Code  git master
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 31 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 12 of file ltree_plpython.c.

Function Documentation

◆ _PG_init()

void _PG_init ( void  )

Definition at line 20 of file ltree_plpython.c.

21 {
22  /* Asserts verify that typedefs above match original declarations */
25  load_external_function("$libdir/" PLPYTHON_LIBNAME, "PLyUnicode_FromStringAndSize",
26  true, NULL);
27 }
#define AssertVariableIsOfType(varname, typename)
Definition: c.h:963
void * load_external_function(const char *filename, const char *funcname, bool signalNotFound, void **filehandle)
Definition: dfmgr.c:105
#define PLyUnicode_FromStringAndSize
PyObject *(* PLyUnicode_FromStringAndSize_t)(const char *s, Py_ssize_t size)
static PLyUnicode_FromStringAndSize_t PLyUnicode_FromStringAndSize_p

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

◆ ltree_to_plpython()

Datum ltree_to_plpython ( PG_FUNCTION_ARGS  )

Definition at line 37 of file ltree_plpython.c.

38 {
39  ltree *in = PG_GETARG_LTREE_P(0);
40  int i;
41  PyObject *list;
42  ltree_level *curlevel;
43 
44  list = PyList_New(in->numlevel);
45  if (!list)
46  ereport(ERROR,
47  (errcode(ERRCODE_OUT_OF_MEMORY),
48  errmsg("out of memory")));
49 
50  curlevel = LTREE_FIRST(in);
51  for (i = 0; i < in->numlevel; i++)
52  {
53  PyList_SetItem(list, i, PLyUnicode_FromStringAndSize(curlevel->name, curlevel->len));
54  curlevel = LEVEL_NEXT(curlevel);
55  }
56 
57  PG_FREE_IF_COPY(in, 0);
58 
59  return PointerGetDatum(list);
60 }
int errcode(int sqlerrcode)
Definition: elog.c:693
int errmsg(const char *fmt,...)
Definition: elog.c:904
#define ERROR
Definition: elog.h:33
#define ereport(elevel,...)
Definition: elog.h:143
#define PG_FREE_IF_COPY(ptr, n)
Definition: fmgr.h:260
int i
Definition: isn.c:73
#define LTREE_FIRST(x)
Definition: ltree.h:51
#define LEVEL_NEXT(x)
Definition: ltree.h:40
#define PG_GETARG_LTREE_P(n)
Definition: ltree.h:217
#define PointerGetDatum(X)
Definition: postgres.h:600
char name[FLEXIBLE_ARRAY_MEMBER]
Definition: ltree.h:36
uint16 len
Definition: ltree.h:35
Definition: ltree.h:43
uint16 numlevel
Definition: ltree.h:45

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 13 of file ltree_plpython.c.

Referenced by _PG_init().