mirror of
https://git.postgresql.org/git/postgresql.git
synced 2025-01-30 19:00:29 +08:00
Various cosmetic code cleanup for PL/Python:
- use "bool" rather than "int" for boolean variables - use "PLy_malloc" rather than "malloc" in two places - define "PLy_strdup", and use it rather than malloc() + strcpy() in two places (which should have been memcpy(), anyway). - remove a bunch of redundant parentheses from expressions that do not need the parentheses for code clarity
This commit is contained in:
Neil Conway
parent
261114a23f
commit
97e1535fba
@ -29,7 +29,7 @@
|
||||
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/pl/plpython/plpython.c,v 1.66 2005/10/15 02:49:50 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/pl/plpython/plpython.c,v 1.67 2005/12/26 04:28:48 neilc Exp $
|
||||
*
|
||||
*********************************************************************
|
||||
*/
|
||||
@ -161,7 +161,7 @@ typedef struct PLyResultObject
|
||||
{
|
||||
PyObject_HEAD
|
||||
/* HeapTuple *tuples; */
|
||||
PyObject * nrows; /* number of rows returned by query */
|
||||
PyObject *nrows; /* number of rows returned by query */
|
||||
PyObject *rows; /* data rows, or None if no data returned */
|
||||
PyObject *status; /* query status, SPI_OK_*, or SPI_ERR_* */
|
||||
} PLyResultObject;
|
||||
@ -209,6 +209,7 @@ static char *PLy_printf(const char *fmt,...);
|
||||
|
||||
static void *PLy_malloc(size_t);
|
||||
static void *PLy_realloc(void *, size_t);
|
||||
static char *PLy_strdup(const char *);
|
||||
static void PLy_free(void *);
|
||||
|
||||
/* sub handlers for functions and triggers
|
||||
@ -256,7 +257,7 @@ static PyObject *PLyString_FromString(const char *);
|
||||
|
||||
/* global data
|
||||
*/
|
||||
static int PLy_first_call = 1;
|
||||
static bool PLy_first_call = true;
|
||||
|
||||
/*
|
||||
* Currently active plpython function
|
||||
@ -420,8 +421,8 @@ PLy_trigger_handler(FunctionCallInfo fcinfo, PLyProcedure * proc)
|
||||
{
|
||||
TriggerData *tdata = (TriggerData *) fcinfo->context;
|
||||
|
||||
if ((TRIGGER_FIRED_BY_INSERT(tdata->tg_event)) ||
|
||||
(TRIGGER_FIRED_BY_UPDATE(tdata->tg_event)))
|
||||
if (TRIGGER_FIRED_BY_INSERT(tdata->tg_event) ||
|
||||
TRIGGER_FIRED_BY_UPDATE(tdata->tg_event))
|
||||
rv = PLy_modify_tuple(proc, plargs, tdata, rv);
|
||||
else
|
||||
elog(WARNING, "ignoring modified tuple in DELETE trigger");
|
||||
@ -781,7 +782,7 @@ PLy_function_handler(FunctionCallInfo fcinfo, PLyProcedure * proc)
|
||||
plrv_sc = PyString_AsString(plrv_so);
|
||||
rv = FunctionCall3(&proc->result.out.d.typfunc,
|
||||
PointerGetDatum(plrv_sc),
|
||||
ObjectIdGetDatum(proc->result.out.d.typioparam),
|
||||
ObjectIdGetDatum(proc->result.out.d.typioparam),
|
||||
Int32GetDatum(-1));
|
||||
}
|
||||
|
||||
@ -824,7 +825,7 @@ PLy_procedure_call(PLyProcedure * proc, char *kargs, PyObject * vargs)
|
||||
ReThrowError(edata);
|
||||
}
|
||||
|
||||
if ((rv == NULL) || (PyErr_Occurred()))
|
||||
if (rv == NULL || PyErr_Occurred())
|
||||
{
|
||||
Py_XDECREF(rv);
|
||||
PLy_elog(ERROR, "function \"%s\" failed", proc->proname);
|
||||
@ -945,7 +946,7 @@ PLy_procedure_get(FunctionCallInfo fcinfo, Oid tgreloid)
|
||||
elog(ERROR, "cache lookup failed for function %u", fn_oid);
|
||||
|
||||
rv = snprintf(key, sizeof(key), "%u_%u", fn_oid, tgreloid);
|
||||
if ((rv >= sizeof(key)) || (rv < 0))
|
||||
if (rv >= sizeof(key) || rv < 0)
|
||||
elog(ERROR, "key too long");
|
||||
|
||||
plproc = PyDict_GetItemString(PLy_procedure_cache, key);
|
||||
@ -1002,14 +1003,12 @@ PLy_procedure_create(FunctionCallInfo fcinfo, Oid tgreloid,
|
||||
"__plpython_procedure_%s_%u",
|
||||
NameStr(procStruct->proname),
|
||||
fcinfo->flinfo->fn_oid);
|
||||
if ((rv >= sizeof(procName)) || (rv < 0))
|
||||
if (rv >= sizeof(procName) || rv < 0)
|
||||
elog(ERROR, "procedure name would overrun buffer");
|
||||
|
||||
proc = PLy_malloc(sizeof(PLyProcedure));
|
||||
proc->proname = PLy_malloc(strlen(NameStr(procStruct->proname)) + 1);
|
||||
strcpy(proc->proname, NameStr(procStruct->proname));
|
||||
proc->pyname = PLy_malloc(strlen(procName) + 1);
|
||||
strcpy(proc->pyname, procName);
|
||||
proc->proname = PLy_strdup(NameStr(procStruct->proname));
|
||||
proc->pyname = PLy_strdup(procName);
|
||||
proc->fn_xmin = HeapTupleHeaderGetXmin(procTup->t_data);
|
||||
proc->fn_cmin = HeapTupleHeaderGetCmin(procTup->t_data);
|
||||
/* Remember if function is STABLE/IMMUTABLE */
|
||||
@ -1164,7 +1163,7 @@ PLy_procedure_compile(PLyProcedure * proc, const char *src)
|
||||
crv = PyRun_String(msrc, Py_file_input, proc->globals, NULL);
|
||||
free(msrc);
|
||||
|
||||
if ((crv != NULL) && (!PyErr_Occurred()))
|
||||
if (crv != NULL && (!PyErr_Occurred()))
|
||||
{
|
||||
int clen;
|
||||
char call[NAMEDATALEN + 256];
|
||||
@ -1175,10 +1174,10 @@ PLy_procedure_compile(PLyProcedure * proc, const char *src)
|
||||
* compile a call to the function
|
||||
*/
|
||||
clen = snprintf(call, sizeof(call), "%s()", proc->pyname);
|
||||
if ((clen < 0) || (clen >= sizeof(call)))
|
||||
if (clen < 0 || clen >= sizeof(call))
|
||||
elog(ERROR, "string would overflow buffer");
|
||||
proc->code = Py_CompileString(call, "<string>", Py_eval_input);
|
||||
if ((proc->code != NULL) && (!PyErr_Occurred()))
|
||||
if (proc->code != NULL && (!PyErr_Occurred()))
|
||||
return;
|
||||
}
|
||||
else
|
||||
@ -1268,7 +1267,7 @@ PLy_input_tuple_funcs(PLyTypeInfo * arg, TupleDesc desc)
|
||||
|
||||
arg->is_rowtype = 1;
|
||||
arg->in.r.natts = desc->natts;
|
||||
arg->in.r.atts = malloc(desc->natts * sizeof(PLyDatumToOb));
|
||||
arg->in.r.atts = PLy_malloc(desc->natts * sizeof(PLyDatumToOb));
|
||||
|
||||
for (i = 0; i < desc->natts; i++)
|
||||
{
|
||||
@ -1302,7 +1301,7 @@ PLy_output_tuple_funcs(PLyTypeInfo * arg, TupleDesc desc)
|
||||
|
||||
arg->is_rowtype = 1;
|
||||
arg->out.r.natts = desc->natts;
|
||||
arg->out.r.atts = malloc(desc->natts * sizeof(PLyDatumToOb));
|
||||
arg->out.r.atts = PLy_malloc(desc->natts * sizeof(PLyDatumToOb));
|
||||
|
||||
for (i = 0; i < desc->natts; i++)
|
||||
{
|
||||
@ -1425,7 +1424,7 @@ PLyFloat_FromString(const char *src)
|
||||
|
||||
errno = 0;
|
||||
v = strtod(src, &eptr);
|
||||
if ((*eptr != '\0') || (errno))
|
||||
if (*eptr != '\0' || errno)
|
||||
return NULL;
|
||||
return PyFloat_FromDouble(v);
|
||||
}
|
||||
@ -1438,7 +1437,7 @@ PLyInt_FromString(const char *src)
|
||||
|
||||
errno = 0;
|
||||
v = strtol(src, &eptr, 0);
|
||||
if ((*eptr != '\0') || (errno))
|
||||
if (*eptr != '\0' || errno)
|
||||
return NULL;
|
||||
return PyInt_FromLong(v);
|
||||
}
|
||||
@ -1485,7 +1484,7 @@ PLyDict_FromTuple(PLyTypeInfo * info, HeapTuple tuple, TupleDesc desc)
|
||||
key = NameStr(desc->attrs[i]->attname);
|
||||
vattr = heap_getattr(tuple, (i + 1), desc, &is_null);
|
||||
|
||||
if ((is_null) || (info->in.r.atts[i].func == NULL))
|
||||
if (is_null || info->in.r.atts[i].func == NULL)
|
||||
PyDict_SetItemString(dict, key, Py_None);
|
||||
else
|
||||
{
|
||||
@ -1860,7 +1859,7 @@ PLy_spi_prepare(PyObject * self, PyObject * args)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if ((list) && (!PySequence_Check(list)))
|
||||
if (list && (!PySequence_Check(list)))
|
||||
{
|
||||
PyErr_SetString(PLy_exc_spi_error,
|
||||
"Second argument in plpy.prepare() must be a sequence");
|
||||
@ -1982,8 +1981,8 @@ PLy_spi_execute(PyObject * self, PyObject * args)
|
||||
|
||||
PyErr_Clear();
|
||||
|
||||
if ((PyArg_ParseTuple(args, "O|Ol", &plan, &list, &limit)) &&
|
||||
(is_PLyPlanObject(plan)))
|
||||
if (PyArg_ParseTuple(args, "O|Ol", &plan, &list, &limit) &&
|
||||
is_PLyPlanObject(plan))
|
||||
return PLy_spi_execute_plan(plan, list, limit);
|
||||
|
||||
PyErr_SetString(PLy_exc_error, "Expected a query or plan.");
|
||||
@ -2002,7 +2001,7 @@ PLy_spi_execute_plan(PyObject * ob, PyObject * list, long limit)
|
||||
|
||||
if (list != NULL)
|
||||
{
|
||||
if ((!PySequence_Check(list)) || (PyString_Check(list)))
|
||||
if (!PySequence_Check(list) || PyString_Check(list))
|
||||
{
|
||||
char *msg = "plpy.execute() takes a sequence as its second argument";
|
||||
|
||||
@ -2251,7 +2250,7 @@ PLy_spi_execute_fetch_result(SPITupleTable *tuptable, int rows, int status)
|
||||
void
|
||||
plpython_init(void)
|
||||
{
|
||||
static volatile int init_active = 0;
|
||||
static volatile bool init_active = false;
|
||||
|
||||
/* Do initialization only once */
|
||||
if (!PLy_first_call)
|
||||
@ -2259,7 +2258,7 @@ plpython_init(void)
|
||||
|
||||
if (init_active)
|
||||
elog(FATAL, "initialization of language module failed");
|
||||
init_active = 1;
|
||||
init_active = true;
|
||||
|
||||
Py_Initialize();
|
||||
PLy_init_interp();
|
||||
@ -2270,7 +2269,7 @@ plpython_init(void)
|
||||
if (PLy_procedure_cache == NULL)
|
||||
PLy_elog(ERROR, "could not create procedure cache");
|
||||
|
||||
PLy_first_call = 0;
|
||||
PLy_first_call = false;
|
||||
}
|
||||
|
||||
static void
|
||||
@ -2284,7 +2283,6 @@ PLy_init_all(void)
|
||||
* Any other initialization that must be done each time a new backend
|
||||
* starts -- currently none
|
||||
*/
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
@ -2293,14 +2291,14 @@ PLy_init_interp(void)
|
||||
PyObject *mainmod;
|
||||
|
||||
mainmod = PyImport_AddModule("__main__");
|
||||
if ((mainmod == NULL) || (PyErr_Occurred()))
|
||||
if (mainmod == NULL || PyErr_Occurred())
|
||||
PLy_elog(ERROR, "could not import \"__main__\" module.");
|
||||
Py_INCREF(mainmod);
|
||||
PLy_interp_globals = PyModule_GetDict(mainmod);
|
||||
PLy_interp_safe_globals = PyDict_New();
|
||||
PyDict_SetItemString(PLy_interp_globals, "GD", PLy_interp_safe_globals);
|
||||
Py_DECREF(mainmod);
|
||||
if ((PLy_interp_globals == NULL) || (PyErr_Occurred()))
|
||||
if (PLy_interp_globals == NULL || PyErr_Occurred())
|
||||
PLy_elog(ERROR, "could not initialize globals");
|
||||
}
|
||||
|
||||
@ -2396,7 +2394,7 @@ PLy_output(volatile int level, PyObject * self, PyObject * args)
|
||||
MemoryContext oldcontext;
|
||||
|
||||
so = PyObject_Str(args);
|
||||
if ((so == NULL) || ((sv = PyString_AsString(so)) == NULL))
|
||||
if (so == NULL || ((sv = PyString_AsString(so)) == NULL))
|
||||
{
|
||||
level = ERROR;
|
||||
sv = "Unable to parse error message in `plpy.elog'";
|
||||
@ -2439,7 +2437,7 @@ PLy_output(volatile int level, PyObject * self, PyObject * args)
|
||||
* If a plpython procedure call calls the backend and the backend calls
|
||||
* another plpython procedure )
|
||||
*
|
||||
* NB: this returns SQL name, not the internal Python procedure name
|
||||
* NB: this returns the SQL name, not the internal Python procedure name
|
||||
*/
|
||||
|
||||
static char *
|
||||
@ -2533,7 +2531,7 @@ PLy_traceback(int *xlevel)
|
||||
PyErr_NormalizeException(&e, &v, &tb);
|
||||
|
||||
eob = PyObject_Str(e);
|
||||
if ((v) && ((vob = PyObject_Str(v)) != NULL))
|
||||
if (v && ((vob = PyObject_Str(v)) != NULL))
|
||||
vstr = PyString_AsString(vob);
|
||||
else
|
||||
vstr = "Unknown";
|
||||
@ -2553,9 +2551,9 @@ PLy_traceback(int *xlevel)
|
||||
/*
|
||||
* intuit an appropriate error level for based on the exception type
|
||||
*/
|
||||
if ((PLy_exc_error) && (PyErr_GivenExceptionMatches(e, PLy_exc_error)))
|
||||
if (PLy_exc_error && PyErr_GivenExceptionMatches(e, PLy_exc_error))
|
||||
*xlevel = ERROR;
|
||||
else if ((PLy_exc_fatal) && (PyErr_GivenExceptionMatches(e, PLy_exc_fatal)))
|
||||
else if (PLy_exc_fatal && PyErr_GivenExceptionMatches(e, PLy_exc_fatal))
|
||||
*xlevel = FATAL;
|
||||
else
|
||||
*xlevel = ERROR;
|
||||
@ -2591,7 +2589,7 @@ PLy_vprintf(const char *fmt, va_list ap)
|
||||
while (1)
|
||||
{
|
||||
bchar = vsnprintf(buf, blen, fmt, ap);
|
||||
if ((bchar > 0) && (bchar < blen))
|
||||
if (bchar > 0 && bchar < blen)
|
||||
return buf;
|
||||
if (tries-- <= 0)
|
||||
break;
|
||||
@ -2636,6 +2634,19 @@ PLy_realloc(void *optr, size_t bytes)
|
||||
return nptr;
|
||||
}
|
||||
|
||||
static char *
|
||||
PLy_strdup(const char *str)
|
||||
{
|
||||
char *result;
|
||||
size_t len;
|
||||
|
||||
len = strlen(str) + 1;
|
||||
result = PLy_malloc(len);
|
||||
memcpy(result, str, len);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/* define this away
|
||||
*/
|
||||
static void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user