#include <Python.h>
#include <structmember.h>
#include <datetime.h>
+#include <time.h>
#include <stdio.h>
#include <systemd/sd-journal.h>
#include "pyutil.h"
#include "macro.h"
#include "util.h"
+#include "strv.h"
+#include "build.h"
typedef struct {
PyObject_HEAD
} Reader;
static PyTypeObject ReaderType;
-static int set_error(int r, const char* path, const char* invalid_message) {
- if (r >= 0)
- return r;
- if (r == -EINVAL && invalid_message)
- PyErr_SetString(PyExc_ValueError, invalid_message);
- else if (r == -ENOMEM)
- PyErr_SetString(PyExc_MemoryError, "Not enough memory");
- else {
- errno = -r;
- PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
- }
- return -1;
-}
-
PyDoc_STRVAR(module__doc__,
"Class to reads the systemd journal similar to journalctl.");
};
#endif
+/**
+ * Convert a Python sequence object into a strv (char**), and
+ * None into a NULL pointer.
+ */
+static int strv_converter(PyObject* obj, void *_result) {
+ char ***result = _result;
+ Py_ssize_t i, len;
+
+ assert(result);
+
+ if (!obj)
+ return 0;
+
+ if (obj == Py_None) {
+ *result = NULL;
+ return 1;
+ }
+
+ if (!PySequence_Check(obj))
+ return 0;
+
+ len = PySequence_Length(obj);
+ *result = new0(char*, len + 1);
+ if (!*result) {
+ set_error(-ENOMEM, NULL, NULL);
+ return 0;
+ }
+
+ for (i = 0; i < len; i++) {
+ PyObject *item;
+#if PY_MAJOR_VERSION >=3 && PY_MINOR_VERSION >= 1
+ int r;
+ PyObject *bytes;
+#endif
+ char *s, *s2;
+
+ item = PySequence_ITEM(obj, i);
+#if PY_MAJOR_VERSION >=3 && PY_MINOR_VERSION >= 1
+ r = PyUnicode_FSConverter(item, &bytes);
+ if (r == 0)
+ goto cleanup;
+
+ s = PyBytes_AsString(bytes);
+#else
+ s = PyString_AsString(item);
+#endif
+ if (!s)
+ goto cleanup;
+
+ s2 = strdup(s);
+ if (!s2)
+ log_oom();
+
+ (*result)[i] = s2;
+ }
+
+ return 1;
+
+cleanup:
+ strv_free(*result);
+ *result = NULL;
+
+ return 0;
+}
static void Reader_dealloc(Reader* self)
{
}
PyDoc_STRVAR(Reader__doc__,
- "_Reader([flags | path]) -> ...\n\n"
+ "_Reader([flags | path | files]) -> ...\n\n"
"_Reader allows filtering and retrieval of Journal entries.\n"
"Note: this is a low-level interface, and probably not what you\n"
"want, use systemd.journal.Reader instead.\n\n"
"Argument `flags` sets open flags of the journal, which can be one\n"
"of, or ORed combination of constants: LOCAL_ONLY (default) opens\n"
"journal on local machine only; RUNTIME_ONLY opens only\n"
- "volatile journal files; and SYSTEM_ONLY opens only\n"
- "journal files of system services and the kernel.\n\n"
- "Argument `path` is the directory of journal files. Note that\n"
- "`flags` and `path` are exclusive.\n\n"
+ "volatile journal files; and SYSTEM opens journal files of\n"
+ "system services and the kernel, and CURRENT_USER opens files\n"
+ "of the current user.\n\n"
+ "Argument `path` is the directory of journal files.\n"
+ "Argument `files` is a list of files. Note that\n"
+ "`flags`, `path`, and `files` are exclusive.\n\n"
"_Reader implements the context manager protocol: the journal\n"
"will be closed when exiting the block.");
static int Reader_init(Reader *self, PyObject *args, PyObject *keywds)
{
int flags = 0, r;
char *path = NULL;
+ char **files = NULL;
- static const char* const kwlist[] = {"flags", "path", NULL};
- if (!PyArg_ParseTupleAndKeywords(args, keywds, "|iz", (char**) kwlist,
- &flags, &path))
+ static const char* const kwlist[] = {"flags", "path", "files", NULL};
+ if (!PyArg_ParseTupleAndKeywords(args, keywds, "|izO&:__init__", (char**) kwlist,
+ &flags, &path, strv_converter, &files))
return -1;
+ if (!!flags + !!path + !!files > 1) {
+ PyErr_SetString(PyExc_ValueError, "cannot use more than one of flags, path, and files");
+ return -1;
+ }
+
if (!flags)
flags = SD_JOURNAL_LOCAL_ONLY;
- else
- if (path) {
- PyErr_SetString(PyExc_ValueError, "cannot use both flags and path");
- return -1;
- }
Py_BEGIN_ALLOW_THREADS
if (path)
r = sd_journal_open_directory(&self->j, path, 0);
+ else if (files)
+ r = sd_journal_open_files(&self->j, (const char**) files, 0);
else
r = sd_journal_open(&self->j, flags);
Py_END_ALLOW_THREADS
"See man:sd_journal_get_fd(3).");
static PyObject* Reader_fileno(Reader *self, PyObject *args)
{
- int fd;
- fd = sd_journal_get_fd(self->j);
+ int fd = sd_journal_get_fd(self->j);
set_error(fd, NULL, NULL);
if (fd < 0)
return NULL;
"See man:sd_journal_reliable_fd(3).");
static PyObject* Reader_reliable_fd(Reader *self, PyObject *args)
{
- int r;
- r = sd_journal_reliable_fd(self->j);
+ int r = sd_journal_reliable_fd(self->j);
set_error(r, NULL, NULL);
if (r < 0)
return NULL;
}
+PyDoc_STRVAR(Reader_get_events__doc__,
+ "get_events() -> int\n\n"
+ "Returns a mask of poll() events to wait for on the file\n"
+ "descriptor returned by .fileno().\n\n"
+ "See man:sd_journal_get_events(3) for further discussion.");
+static PyObject* Reader_get_events(Reader *self, PyObject *args)
+{
+ int r = sd_journal_get_events(self->j);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+ return long_FromLong(r);
+}
+
+
+PyDoc_STRVAR(Reader_get_timeout__doc__,
+ "get_timeout() -> int or None\n\n"
+ "Returns a timeout value for usage in poll(), the time since the\n"
+ "epoch of clock_gettime(2) in microseconds, or None if no timeout\n"
+ "is necessary.\n\n"
+ "The return value must be converted to a relative timeout in\n"
+ "milliseconds if it is to be used as an argument for poll().\n"
+ "See man:sd_journal_get_timeout(3) for further discussion.");
+static PyObject* Reader_get_timeout(Reader *self, PyObject *args)
+{
+ int r;
+ uint64_t t;
+
+ r = sd_journal_get_timeout(self->j, &t);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+
+ if (t == (uint64_t) -1)
+ Py_RETURN_NONE;
+
+ assert_cc(sizeof(unsigned long long) == sizeof(t));
+ return PyLong_FromUnsignedLongLong(t);
+}
+
+
+PyDoc_STRVAR(Reader_get_timeout_ms__doc__,
+ "get_timeout_ms() -> int\n\n"
+ "Returns a timeout value suitable for usage in poll(), the value\n"
+ "returned by .get_timeout() converted to relative ms, or -1 if\n"
+ "no timeout is necessary.");
+static PyObject* Reader_get_timeout_ms(Reader *self, PyObject *args)
+{
+ int r;
+ uint64_t t;
+
+ r = sd_journal_get_timeout(self->j, &t);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+
+ return absolute_timeout(t);
+}
+
+
PyDoc_STRVAR(Reader_close__doc__,
"close() -> None\n\n"
"Free resources allocated by this Reader object.\n"
"Closes the journal.\n");
static PyObject* Reader___exit__(Reader *self, PyObject *args)
{
- assert(self);
-
- sd_journal_close(self->j);
- self->j = NULL;
- Py_RETURN_NONE;
+ return Reader_close(self, args);
}
return PyBool_FromLong(r);
}
+PyDoc_STRVAR(Reader_previous__doc__,
+ "previous([skip]) -> bool\n\n"
+ "Go to the previous log entry. Optional skip value means to \n"
+ "go to the `skip`\\-th previous log entry.\n"
+ "Returns False if at start of file, True otherwise.");
+static PyObject* Reader_previous(Reader *self, PyObject *args)
+{
+ int64_t skip = 1LL;
+ if (!PyArg_ParseTuple(args, "|L:previous", &skip))
+ return NULL;
+
+ return PyObject_CallMethod((PyObject *)self, (char*) "_next",
+ (char*) "L", -skip);
+}
+
static int extract(const char* msg, size_t msg_len,
PyObject **key, PyObject **value) {
}
-PyDoc_STRVAR(Reader_get_next__doc__,
- "get_next([skip]) -> dict\n\n"
- "Return dictionary of the next log entry. Optional skip value will\n"
- "return the `skip`\\-th log entry. Returns an empty dict on EOF.");
-static PyObject* Reader_get_next(Reader *self, PyObject *args)
+PyDoc_STRVAR(Reader_get_all__doc__,
+ "_get_all() -> dict\n\n"
+ "Return dictionary of the current log entry.");
+static PyObject* Reader_get_all(Reader *self, PyObject *args)
{
- PyObject _cleanup_Py_DECREF_ *tmp = NULL;
PyObject *dict;
const void *msg;
size_t msg_len;
int r;
- tmp = Reader_next(self, args);
- if (!tmp)
- return NULL;
- if (tmp == Py_False) /* EOF */
- return PyDict_New();
-
dict = PyDict_New();
if (!dict)
return NULL;
SD_JOURNAL_FOREACH_DATA(self->j, msg, msg_len) {
- PyObject _cleanup_Py_DECREF_ *key = NULL, *value = NULL;
+ _cleanup_Py_DECREF_ PyObject *key = NULL, *value = NULL;
r = extract(msg, msg_len, &key, &value);
if (r < 0)
if (r < 0)
goto error;
} else {
- PyObject _cleanup_Py_DECREF_ *tmp_list = PyList_New(0);
+ _cleanup_Py_DECREF_ PyObject *tmp_list = PyList_New(0);
if (!tmp_list)
goto error;
return tuple;
}
-
-PyDoc_STRVAR(Reader_get_previous__doc__,
- "get_previous([skip]) -> dict\n\n"
- "Return dictionary of the previous log entry. Optional skip value\n"
- "will return the -`skip`\\-th log entry. Equivalent to get_next(-skip).");
-static PyObject* Reader_get_previous(Reader *self, PyObject *args)
-{
- int64_t skip = 1LL;
- if (!PyArg_ParseTuple(args, "|L:get_previous", &skip))
- return NULL;
-
- return PyObject_CallMethod((PyObject *)self, (char*) "get_next",
- (char*) "L", -skip);
-}
-
-
PyDoc_STRVAR(Reader_add_match__doc__,
"add_match(match) -> None\n\n"
"Add a match to filter journal log entries. All matches of different\n"
PyDoc_STRVAR(Reader_add_disjunction__doc__,
"add_disjunction() -> None\n\n"
- "Inserts a logical OR between matches added before and afterwards.");
+ "Inserts a logical OR between matches added since previous\n"
+ "add_disjunction() or add_conjunction() and the next\n"
+ "add_disjunction() or add_conjunction().\n\n"
+ "See man:sd_journal_add_disjunction(3) for explanation.");
static PyObject* Reader_add_disjunction(Reader *self, PyObject *args)
{
int r;
}
+PyDoc_STRVAR(Reader_add_conjunction__doc__,
+ "add_conjunction() -> None\n\n"
+ "Inserts a logical AND between matches added since previous\n"
+ "add_disjunction() or add_conjunction() and the next\n"
+ "add_disjunction() or add_conjunction().\n\n"
+ "See man:sd_journal_add_disjunction(3) for explanation.");
+static PyObject* Reader_add_conjunction(Reader *self, PyObject *args)
+{
+ int r;
+ r = sd_journal_add_conjunction(self->j);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+ Py_RETURN_NONE;
+}
+
+
PyDoc_STRVAR(Reader_flush_matches__doc__,
"flush_matches() -> None\n\n"
"Clear all current match filters.");
}
+PyDoc_STRVAR(Reader_process__doc__,
+ "process() -> state change (integer)\n\n"
+ "Process events and reset the readable state of the file\n"
+ "descriptor returned by .fileno().\n\n"
+ "Will return constants: NOP if no change; APPEND if new\n"
+ "entries have been added to the end of the journal; and\n"
+ "INVALIDATE if journal files have been added or removed.\n\n"
+ "See man:sd_journal_process(3) for further discussion.");
+static PyObject* Reader_process(Reader *self, PyObject *args)
+{
+ int r;
+
+ assert(!args);
+
+ Py_BEGIN_ALLOW_THREADS
+ r = sd_journal_process(self->j);
+ Py_END_ALLOW_THREADS
+ if (set_error(r, NULL, NULL) < 0)
+ return NULL;
+
+ return long_FromLong(r);
+}
+
+
PyDoc_STRVAR(Reader_wait__doc__,
"wait([timeout]) -> state change (integer)\n\n"
"Wait for a change in the journal. Argument `timeout` specifies\n"
"Wraps sd_journal_get_cursor(). See man:sd_journal_get_cursor(3).");
static PyObject* Reader_get_cursor(Reader *self, PyObject *args)
{
- char _cleanup_free_ *cursor = NULL;
+ _cleanup_free_ char *cursor = NULL;
int r;
assert(self);
return PyBool_FromLong(r);
}
-
-static PyObject* Reader_iter(PyObject *self)
-{
- Py_INCREF(self);
- return self;
-}
-
-static PyObject* Reader_iternext(PyObject *self)
-{
- PyObject *dict;
- Py_ssize_t dict_size;
-
- dict = PyObject_CallMethod(self, (char*) "get_next", (char*) "");
- if (PyErr_Occurred())
- return NULL;
- dict_size = PyDict_Size(dict);
- if ((int64_t) dict_size > 0LL) {
- return dict;
- } else {
- Py_DECREF(dict);
- PyErr_SetNone(PyExc_StopIteration);
- return NULL;
- }
-}
-
-
PyDoc_STRVAR(Reader_query_unique__doc__,
"query_unique(field) -> a set of values\n\n"
"Return a set of unique values appearing in journal for the\n"
static PyObject* Reader_get_catalog(Reader *self, PyObject *args)
{
int r;
- char _cleanup_free_ *msg = NULL;
+ _cleanup_free_ char *msg = NULL;
assert(self);
assert(!args);
r = sd_journal_get_data(self->j, "MESSAGE_ID", &mid, &mid_len);
if (r == 0) {
- const int l = sizeof("MESSAGE_ID");
+ const size_t l = sizeof("MESSAGE_ID");
assert(mid_len > l);
- PyErr_Format(PyExc_KeyError, "%.*s", (int) mid_len - l,
+ PyErr_Format(PyExc_KeyError, "%.*s", (int) (mid_len - l),
(const char*) mid + l);
} else if (r == -ENOENT)
PyErr_SetString(PyExc_IndexError, "no MESSAGE_ID field");
int r;
char *id_ = NULL;
sd_id128_t id;
- char _cleanup_free_ *msg = NULL;
+ _cleanup_free_ char *msg = NULL;
assert(!self);
assert(args);
static PyMethodDef Reader_methods[] = {
{"fileno", (PyCFunction) Reader_fileno, METH_NOARGS, Reader_fileno__doc__},
{"reliable_fd", (PyCFunction) Reader_reliable_fd, METH_NOARGS, Reader_reliable_fd__doc__},
+ {"get_events", (PyCFunction) Reader_get_events, METH_NOARGS, Reader_get_events__doc__},
+ {"get_timeout", (PyCFunction) Reader_get_timeout, METH_NOARGS, Reader_get_timeout__doc__},
+ {"get_timeout_ms", (PyCFunction) Reader_get_timeout_ms, METH_NOARGS, Reader_get_timeout_ms__doc__},
{"close", (PyCFunction) Reader_close, METH_NOARGS, Reader_close__doc__},
{"get_usage", (PyCFunction) Reader_get_usage, METH_NOARGS, Reader_get_usage__doc__},
{"__enter__", (PyCFunction) Reader___enter__, METH_NOARGS, Reader___enter____doc__},
{"__exit__", (PyCFunction) Reader___exit__, METH_VARARGS, Reader___exit____doc__},
- {"next", (PyCFunction) Reader_next, METH_VARARGS, Reader_next__doc__},
- {"get", (PyCFunction) Reader_get, METH_VARARGS, Reader_get__doc__},
- {"get_next", (PyCFunction) Reader_get_next, METH_VARARGS, Reader_get_next__doc__},
- {"get_previous", (PyCFunction) Reader_get_previous, METH_VARARGS, Reader_get_previous__doc__},
- {"get_realtime", (PyCFunction) Reader_get_realtime, METH_NOARGS, Reader_get_realtime__doc__},
- {"get_monotonic", (PyCFunction) Reader_get_monotonic, METH_NOARGS, Reader_get_monotonic__doc__},
+ {"_next", (PyCFunction) Reader_next, METH_VARARGS, Reader_next__doc__},
+ {"_previous", (PyCFunction) Reader_previous, METH_VARARGS, Reader_previous__doc__},
+ {"_get", (PyCFunction) Reader_get, METH_VARARGS, Reader_get__doc__},
+ {"_get_all", (PyCFunction) Reader_get_all, METH_NOARGS, Reader_get_all__doc__},
+ {"_get_realtime", (PyCFunction) Reader_get_realtime, METH_NOARGS, Reader_get_realtime__doc__},
+ {"_get_monotonic", (PyCFunction) Reader_get_monotonic, METH_NOARGS, Reader_get_monotonic__doc__},
{"add_match", (PyCFunction) Reader_add_match, METH_VARARGS|METH_KEYWORDS, Reader_add_match__doc__},
{"add_disjunction", (PyCFunction) Reader_add_disjunction, METH_NOARGS, Reader_add_disjunction__doc__},
+ {"add_conjunction", (PyCFunction) Reader_add_conjunction, METH_NOARGS, Reader_add_conjunction__doc__},
{"flush_matches", (PyCFunction) Reader_flush_matches, METH_NOARGS, Reader_flush_matches__doc__},
{"seek_head", (PyCFunction) Reader_seek_head, METH_NOARGS, Reader_seek_head__doc__},
{"seek_tail", (PyCFunction) Reader_seek_tail, METH_NOARGS, Reader_seek_tail__doc__},
{"seek_realtime", (PyCFunction) Reader_seek_realtime, METH_VARARGS, Reader_seek_realtime__doc__},
{"seek_monotonic", (PyCFunction) Reader_seek_monotonic, METH_VARARGS, Reader_seek_monotonic__doc__},
+ {"process", (PyCFunction) Reader_process, METH_NOARGS, Reader_process__doc__},
{"wait", (PyCFunction) Reader_wait, METH_VARARGS, Reader_wait__doc__},
{"seek_cursor", (PyCFunction) Reader_seek_cursor, METH_VARARGS, Reader_seek_cursor__doc__},
- {"get_cursor", (PyCFunction) Reader_get_cursor, METH_NOARGS, Reader_get_cursor__doc__},
+ {"_get_cursor", (PyCFunction) Reader_get_cursor, METH_NOARGS, Reader_get_cursor__doc__},
{"test_cursor", (PyCFunction) Reader_test_cursor, METH_VARARGS, Reader_test_cursor__doc__},
{"query_unique", (PyCFunction) Reader_query_unique, METH_VARARGS, Reader_query_unique__doc__},
{"get_catalog", (PyCFunction) Reader_get_catalog, METH_NOARGS, Reader_get_catalog__doc__},
static PyTypeObject ReaderType = {
PyVarObject_HEAD_INIT(NULL, 0)
- "_reader._Reader", /*tp_name*/
- sizeof(Reader), /*tp_basicsize*/
- 0, /*tp_itemsize*/
- (destructor)Reader_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- 0, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /*tp_hash */
- 0, /*tp_call*/
- 0, /*tp_str*/
- 0, /*tp_getattro*/
- 0, /*tp_setattro*/
- 0, /*tp_as_buffer*/
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
- Reader__doc__, /* tp_doc */
- 0, /* tp_traverse */
- 0, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- Reader_iter, /* tp_iter */
- Reader_iternext, /* tp_iternext */
- Reader_methods, /* tp_methods */
- 0, /* tp_members */
- Reader_getsetters, /* tp_getset */
- 0, /* tp_base */
- 0, /* tp_dict */
- 0, /* tp_descr_get */
- 0, /* tp_descr_set */
- 0, /* tp_dictoffset */
- (initproc) Reader_init, /* tp_init */
- 0, /* tp_alloc */
- PyType_GenericNew, /* tp_new */
+ .tp_name = "_reader._Reader",
+ .tp_basicsize = sizeof(Reader),
+ .tp_dealloc = (destructor) Reader_dealloc,
+ .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+ .tp_doc = Reader__doc__,
+ .tp_methods = Reader_methods,
+ .tp_getset = Reader_getsetters,
+ .tp_init = (initproc) Reader_init,
+ .tp_new = PyType_GenericNew,
};
static PyMethodDef methods[] = {
{ "_get_catalog", get_catalog, METH_VARARGS, get_catalog__doc__},
- { NULL, NULL, 0, NULL } /* Sentinel */
+ {} /* Sentinel */
};
#if PY_MAJOR_VERSION >= 3
module__doc__,
-1,
methods,
- NULL, NULL, NULL, NULL
};
#endif
PyModule_AddIntConstant(m, "INVALIDATE", SD_JOURNAL_INVALIDATE) ||
PyModule_AddIntConstant(m, "LOCAL_ONLY", SD_JOURNAL_LOCAL_ONLY) ||
PyModule_AddIntConstant(m, "RUNTIME_ONLY", SD_JOURNAL_RUNTIME_ONLY) ||
- PyModule_AddIntConstant(m, "SYSTEM_ONLY", SD_JOURNAL_SYSTEM_ONLY)) {
+ PyModule_AddIntConstant(m, "SYSTEM", SD_JOURNAL_SYSTEM) ||
+ PyModule_AddIntConstant(m, "SYSTEM_ONLY", SD_JOURNAL_SYSTEM_ONLY) ||
+ PyModule_AddIntConstant(m, "CURRENT_USER", SD_JOURNAL_CURRENT_USER) ||
+ PyModule_AddStringConstant(m, "__version__", PACKAGE_VERSION)) {
#if PY_MAJOR_VERSION >= 3
Py_DECREF(m);
return NULL;
~ianmdlvl / elogind.git / blobdiff