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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2012 David Strauss
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <Python.h>
#define SD_JOURNAL_SUPPRESS_LOCATION
#include <systemd/sd-journal.h>
#include "macro.h"
PyDoc_STRVAR(journal_sendv__doc__,
"sendv('FIELD=value', 'FIELD=value', ...) -> None\n\n"
"Send an entry to the journal."
);
static PyObject *
journal_sendv(PyObject *self, PyObject *args) {
struct iovec *iov = NULL;
int argc = PyTuple_Size(args);
int i, r;
PyObject *ret = NULL;
PyObject **encoded = calloc(argc, sizeof(PyObject*));
if (!encoded) {
ret = PyErr_NoMemory();
goto out1;
}
// Allocate sufficient iovector space for the arguments.
iov = malloc(argc * sizeof(struct iovec));
if (!iov) {
ret = PyErr_NoMemory();
goto out;
}
// Iterate through the Python arguments and fill the iovector.
for (i = 0; i < argc; ++i) {
PyObject *item = PyTuple_GetItem(args, i);
char *stritem;
Py_ssize_t length;
if (PyUnicode_Check(item)) {
encoded[i] = PyUnicode_AsEncodedString(item, "utf-8", "strict");
if (encoded[i] == NULL)
goto out;
item = encoded[i];
}
if (PyBytes_AsStringAndSize(item, &stritem, &length))
goto out;
iov[i].iov_base = stritem;
iov[i].iov_len = length;
}
// Clear errno, because sd_journal_sendv will not set it by
// itself, unless an error occurs in one of the system calls.
errno = 0;
// Send the iovector to the journal.
r = sd_journal_sendv(iov, argc);
if (r) {
if (errno)
PyErr_SetFromErrno(PyExc_IOError);
else
PyErr_SetString(PyExc_ValueError, "invalid message format");
goto out;
}
// End with success.
Py_INCREF(Py_None);
ret = Py_None;
out:
for (i = 0; i < argc; ++i)
Py_XDECREF(encoded[i]);
free(encoded);
out1:
// Free the iovector. The actual strings
// are already managed by Python.
free(iov);
return ret;
}
PyDoc_STRVAR(journal_stream_fd__doc__,
"stream_fd(identifier, priority, level_prefix) -> fd\n\n"
"Open a stream to journal by calling sd_journal_stream_fd(3)."
);
static PyObject*
journal_stream_fd(PyObject *self, PyObject *args) {
const char* identifier;
int priority, level_prefix;
int fd;
if (!PyArg_ParseTuple(args, "sii:stream_fd",
&identifier, &priority, &level_prefix))
return NULL;
fd = sd_journal_stream_fd(identifier, priority, level_prefix);
if (fd < 0)
return PyErr_SetFromErrno(PyExc_IOError);
return PyLong_FromLong(fd);
}
static PyMethodDef methods[] = {
{"sendv", journal_sendv, METH_VARARGS, journal_sendv__doc__},
{"stream_fd", journal_stream_fd, METH_VARARGS,
journal_stream_fd__doc__},
{NULL, NULL, 0, NULL} /* Sentinel */
};
#if PY_MAJOR_VERSION < 3
PyMODINIT_FUNC
init_journal(void)
{
(void) Py_InitModule("_journal", methods);
}
#else
static struct PyModuleDef module = {
PyModuleDef_HEAD_INIT,
"_journal", /* name of module */
NULL, /* module documentation, may be NULL */
0, /* size of per-interpreter state of the module */
methods
};
PyMODINIT_FUNC
PyInit__journal(void)
{
return PyModule_Create(&module);
}
#endif
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