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