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Add a new warning gategory, ResourceWarning, as discussed on python-dev. It is silent by default,

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except when configured --with-pydebug.

Emit this warning from the GC shutdown procedure, rather than just printing to stderr.
This commit is contained in:
Georg Brandl 2010-10-24 15:11:22 +00:00
parent 872a702bbd
commit 08be72d0aa
12 changed files with 80 additions and 30 deletions
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22
Python/_warnings.c
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@ -835,6 +835,7 @@ create_filter(PyObject *category, const char *action)
static PyObject *ignore_str = NULL;
static PyObject *error_str = NULL;
static PyObject *default_str = NULL;
static PyObject *always_str = NULL;
PyObject *action_obj = NULL;
PyObject *lineno, *result;
@ -862,6 +863,14 @@ create_filter(PyObject *category, const char *action)
}
action_obj = default_str;
}
else if (!strcmp(action, "always")) {
if (always_str == NULL) {
always_str = PyUnicode_InternFromString("always");
if (always_str == NULL)
return NULL;
}
action_obj = always_str;
}
else {
Py_FatalError("unknown action");
}
@ -879,10 +888,10 @@ static PyObject *
init_filters(void)
{
/* Don't silence DeprecationWarning if -3 was used. */
PyObject *filters = PyList_New(4);
PyObject *filters = PyList_New(5);
unsigned int pos = 0; /* Post-incremented in each use. */
unsigned int x;
const char *bytes_action;
const char *bytes_action, *resource_action;
if (filters == NULL)
return NULL;
@ -901,7 +910,14 @@ init_filters(void)
bytes_action = "ignore";
PyList_SET_ITEM(filters, pos++, create_filter(PyExc_BytesWarning,
bytes_action));
/* resource usage warnings are enabled by default in pydebug mode */
#ifdef Py_DEBUG
resource_action = "always";
#else
resource_action = "ignore";
#endif
PyList_SET_ITEM(filters, pos++, create_filter(PyExc_ResourceWarning,
resource_action));
for (x = 0; x < pos; x += 1) {
if (PyList_GET_ITEM(filters, x) == NULL) {
Py_DECREF(filters);