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authorLennart Poettering <lennart@poettering.net>2012-09-13 04:01:18 +0200
committerLennart Poettering <lennart@poettering.net>2012-09-13 04:01:18 +0200
commit8d7e170a5230753d8406276f8b5598e5bb6766e6 (patch)
tree0e3ddb182b1bc5468657fa5d836733029783801d /src/python-systemd/_journal.c
parent3612fbc1e4ae57af0783cc82a56917bcd29a0431 (diff)
python: integrate David Strauss' python-systemd package
Diffstat (limited to 'src/python-systemd/_journal.c')
-rw-r--r--src/python-systemd/_journal.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/src/python-systemd/_journal.c b/src/python-systemd/_journal.c
new file mode 100644
index 0000000000..3e10981707
--- /dev/null
+++ b/src/python-systemd/_journal.c
@@ -0,0 +1,137 @@
+#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