#include "macro.h"
#include "util.h"
-#if PY_MAJOR_VERSION >=3
-# define unicode_FromStringAndSize PyUnicode_FromStringAndSize
-# define unicode_FromString PyUnicode_FromString
-# define long_FromLong PyLong_FromLong
-# define long_FromSize_t PyLong_FromSize_t
-# define long_Check PyLong_Check
-# define long_AsLong PyLong_AsLong
-#else
-/* Python 3 type naming convention is used */
-# define unicode_FromStringAndSize PyString_FromStringAndSize
-# define unicode_FromString PyString_FromString
-# define long_FromLong PyInt_FromLong
-# define long_FromSize_t PyInt_FromSize_t
-# define long_Check PyInt_Check
-# define long_AsLong PyInt_AsLong
-#endif
-
typedef struct {
PyObject_HEAD
sd_journal *j;
errno = -r;
PyErr_SetFromErrnoWithFilename(PyExc_OSError, path);
}
- return 1;
+ return -1;
}
+
+PyDoc_STRVAR(module__doc__,
+ "Class to reads the systemd journal similar to journalctl.");
+
+
#if PY_MAJOR_VERSION >= 3
static PyTypeObject MonotonicType;
};
#endif
+
static void Reader_dealloc(Reader* self)
{
sd_journal_close(self->j);
}
PyDoc_STRVAR(Reader__doc__,
- "Reader([flags][,path]) -> ...\n\n"
+ "Reader([flags | path]) -> ...\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"
+ "journal files of system services and the kernel.\n\n"
"Argument `path` is the directory of journal files. Note that\n"
- "currently flags are ignored when `path` is present as they are\n"
- "not relevant.");
+ "`flags` and `path` are exclusive.\n");
static int Reader_init(Reader *self, PyObject *args, PyObject *keywds)
{
- int flags = SD_JOURNAL_LOCAL_ONLY, r;
+ int flags = 0, r;
char *path = NULL;
static const char* const kwlist[] = {"flags", "path", NULL};
if (!PyArg_ParseTupleAndKeywords(args, keywds, "|iz", (char**) kwlist,
&flags, &path))
- return 1;
+ 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)
return set_error(r, path, "Invalid flags or path");
}
+
+PyDoc_STRVAR(Reader_fileno__doc__,
+ "fileno() -> int\n\n"
+ "Get a file descriptor to poll for changes in the journal.\n"
+ "This method invokes sd_journal_get_fd().\n"
+ "See man:sd_journal_get_fd(3).");
+static PyObject* Reader_fileno(Reader *self, PyObject *args)
+{
+ int fd;
+ fd = sd_journal_get_fd(self->j);
+ set_error(fd, NULL, NULL);
+ if (fd < 0)
+ return NULL;
+ return long_FromLong(fd);
+}
+
+
+PyDoc_STRVAR(Reader_reliable_fd__doc__,
+ "reliable_fd() -> bool\n\n"
+ "Returns True iff the journal can be polled reliably.\n"
+ "This method invokes sd_journal_reliable_fd().\n"
+ "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);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+ return PyBool_FromLong(r);
+}
+
+
+PyDoc_STRVAR(Reader_close__doc__,
+ "close() -> None\n\n"
+ "Free resources allocated by this Reader object.\n"
+ "This method invokes sd_journal_close().\n"
+ "See man:sd_journal_close(3).");
+static PyObject* Reader_close(Reader *self, PyObject *args)
+{
+ assert(self);
+ assert(!args);
+
+ sd_journal_close(self->j);
+ self->j = NULL;
+ Py_RETURN_NONE;
+}
+
+
+PyDoc_STRVAR(Reader_get_usage__doc__,
+ "get_usage() -> int\n\n"
+ "Returns the total disk space currently used by journal"
+ "files (in bytes). If `SD_JOURNAL_LOCAL_ONLY` was"
+ "passed when opening the journal this value will only reflect"
+ "the size of journal files of the local host, otherwise"
+ "of all hosts.\n\n"
+ "This method invokes sd_journal_get_usage().\n"
+ "See man:sd_journal_get_usage(3).");
+static PyObject* Reader_get_usage(Reader *self, PyObject *args)
+{
+ int r;
+ uint64_t bytes;
+
+ r = sd_journal_get_usage(self->j, &bytes);
+ if (set_error(r, NULL, NULL))
+ return NULL;
+
+ assert_cc(sizeof(unsigned long long) == sizeof(bytes));
+ return PyLong_FromUnsignedLongLong(bytes);
+}
+
+
+PyDoc_STRVAR(Reader___enter____doc__,
+ "__enter__() -> self\n\n"
+ "Part of the context manager protocol.\n"
+ "Returns self.\n");
+static PyObject* Reader___enter__(PyObject *self, PyObject *args)
+{
+ assert(self);
+ assert(!args);
+
+ Py_INCREF(self);
+ return self;
+}
+
+PyDoc_STRVAR(Reader___exit____doc__,
+ "__exit__(type, value, traceback) -> None\n\n"
+ "Part of the context manager protocol.\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;
+}
+
+
PyDoc_STRVAR(Reader_get_next__doc__,
"get_next([skip]) -> dict\n\n"
"Return dictionary of the next log entry. Optional skip value will\n"
int64_t skip = 1LL;
int r;
- if (!PyArg_ParseTuple(args, "|L", &skip))
+ if (!PyArg_ParseTuple(args, "|L:_Reader.get_next", &skip))
return NULL;
if (skip == 0LL) {
goto error;
}
- {
- PyObject _cleanup_Py_DECREF_ *key = NULL, *value = NULL;
- char _cleanup_free_ *cursor = NULL;
-
- r = sd_journal_get_cursor(self->j, &cursor);
- if (set_error(r, NULL, NULL))
- goto error;
-
- key = unicode_FromString("__CURSOR");
- if (!key)
- goto error;
-
- value = PyBytes_FromString(cursor);
- if (!value)
- goto error;
-
- if (PyDict_SetItem(dict, key, value))
- goto error;
- }
-
return dict;
error:
Py_DECREF(dict);
return NULL;
}
+
PyDoc_STRVAR(Reader_get_previous__doc__,
"get_previous([skip]) -> dict\n\n"
"Return dictionary of the previous log entry. Optional skip value\n"
static PyObject* Reader_get_previous(Reader *self, PyObject *args)
{
int64_t skip = 1LL;
- if (!PyArg_ParseTuple(args, "|L", &skip))
+ if (!PyArg_ParseTuple(args, "|L:_Reader.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"
{
char *match;
int match_len, r;
- if (!PyArg_ParseTuple(args, "s#", &match, &match_len))
+ if (!PyArg_ParseTuple(args, "s#:_Reader.add_match", &match, &match_len))
return NULL;
r = sd_journal_add_match(self->j, match, match_len);
Py_RETURN_NONE;
}
+
PyDoc_STRVAR(Reader_add_disjunction__doc__,
"add_disjunction() -> None\n\n"
"Inserts a logical OR between matches added before and afterwards.");
Py_RETURN_NONE;
}
+
PyDoc_STRVAR(Reader_flush_matches__doc__,
"flush_matches() -> None\n\n"
"Clear all current match filters.");
Py_RETURN_NONE;
}
-PyDoc_STRVAR(Reader_seek__doc__,
- "seek(offset[, whence]) -> None\n\n"
- "Jump `offset` entries in the journal. Argument\n"
- "`whence` defines what the offset is relative to:\n"
- "os.SEEK_SET (default) from first match in journal;\n"
- "os.SEEK_CUR from current position in journal;\n"
- "and os.SEEK_END is from last match in journal.");
-static PyObject* Reader_seek(Reader *self, PyObject *args, PyObject *keywds)
-{
- int64_t offset;
- int whence = SEEK_SET;
- PyObject *result = NULL;
- static const char* const kwlist[] = {"offset", "whence", NULL};
- if (!PyArg_ParseTupleAndKeywords(args, keywds, "L|i", (char**) kwlist,
- &offset, &whence))
+PyDoc_STRVAR(Reader_seek_head__doc__,
+ "seek_head() -> None\n\n"
+ "Jump to the beginning of the journal.\n"
+ "This method invokes sd_journal_seek_head().\n"
+ "See man:sd_journal_seek_head(3).");
+static PyObject* Reader_seek_head(Reader *self, PyObject *args)
+{
+ int r;
+ Py_BEGIN_ALLOW_THREADS
+ r = sd_journal_seek_head(self->j);
+ Py_END_ALLOW_THREADS
+ if (set_error(r, NULL, NULL))
return NULL;
+ Py_RETURN_NONE;
+}
- switch(whence) {
- case SEEK_SET: {
- int r;
- Py_BEGIN_ALLOW_THREADS
- r = sd_journal_seek_head(self->j);
- Py_END_ALLOW_THREADS
- if (set_error(r, NULL, NULL))
- return NULL;
-
- if (offset > 0LL)
- result = PyObject_CallMethod((PyObject *)self, (char*) "get_next",
- (char*) "L", offset);
- break;
- }
- case SEEK_CUR:
- result = PyObject_CallMethod((PyObject *)self, (char*) "get_next",
- (char*) "L", offset);
- break;
- case SEEK_END: {
- int r;
- Py_BEGIN_ALLOW_THREADS
- r = sd_journal_seek_tail(self->j);
- Py_END_ALLOW_THREADS
- if (set_error(r, NULL, NULL))
- return NULL;
-
- result = PyObject_CallMethod((PyObject *)self, (char*) "get_next",
- (char*) "L", offset < 0LL ? offset : -1LL);
- break;
- }
- default:
- PyErr_SetString(PyExc_ValueError, "Invalid value for whence");
- }
- Py_XDECREF(result);
- if (PyErr_Occurred())
+PyDoc_STRVAR(Reader_seek_tail__doc__,
+ "seek_tail() -> None\n\n"
+ "Jump to the end of the journal.\n"
+ "This method invokes sd_journal_seek_tail().\n"
+ "See man:sd_journal_seek_tail(3).");
+static PyObject* Reader_seek_tail(Reader *self, PyObject *args)
+{
+ int r;
+ Py_BEGIN_ALLOW_THREADS
+ r = sd_journal_seek_tail(self->j);
+ Py_END_ALLOW_THREADS
+ if (set_error(r, NULL, NULL))
return NULL;
Py_RETURN_NONE;
}
+
PyDoc_STRVAR(Reader_seek_realtime__doc__,
"seek_realtime(realtime) -> None\n\n"
"Seek to nearest matching journal entry to `realtime`. Argument\n"
- "`realtime` can must be an integer unix timestamp.");
+ "`realtime` in specified in seconds.");
static PyObject* Reader_seek_realtime(Reader *self, PyObject *args)
{
- double timedouble;
uint64_t timestamp;
int r;
- if (!PyArg_ParseTuple(args, "d", &timedouble))
- return NULL;
-
- timestamp = (uint64_t) (timedouble * 1.0E6);
- if ((int64_t) timestamp < 0LL) {
- PyErr_SetString(PyExc_ValueError, "Time must be a positive integer");
+ if (!PyArg_ParseTuple(args, "K:seek_realtime", ×tamp))
return NULL;
- }
Py_BEGIN_ALLOW_THREADS
r = sd_journal_seek_realtime_usec(self->j, timestamp);
Py_RETURN_NONE;
}
+
PyDoc_STRVAR(Reader_seek_monotonic__doc__,
"seek_monotonic(monotonic[, bootid]) -> None\n\n"
"Seek to nearest matching journal entry to `monotonic`. Argument\n"
- "`monotonic` is an timestamp from boot in seconds.\n"
+ "`monotonic` is an timestamp from boot in microseconds.\n"
"Argument `bootid` is a string representing which boot the\n"
"monotonic time is reference to. Defaults to current bootid.");
static PyObject* Reader_seek_monotonic(Reader *self, PyObject *args)
{
- double timedouble;
char *bootid = NULL;
uint64_t timestamp;
sd_id128_t id;
int r;
- if (!PyArg_ParseTuple(args, "d|z", &timedouble, &bootid))
+ if (!PyArg_ParseTuple(args, "K|z:seek_monotonic", ×tamp, &bootid))
return NULL;
- timestamp = (uint64_t) (timedouble * 1.0E6);
-
- if ((int64_t) timestamp < 0LL) {
- PyErr_SetString(PyExc_ValueError, "Time must be positive number");
- return NULL;
- }
-
if (bootid) {
r = sd_id128_from_string(bootid, &id);
if (set_error(r, NULL, "Invalid bootid"))
Py_END_ALLOW_THREADS
if (set_error(r, NULL, NULL))
return NULL;
+
Py_RETURN_NONE;
}
+
PyDoc_STRVAR(Reader_wait__doc__,
"wait([timeout]) -> state change (integer)\n\n"
"Wait for a change in the journal. Argument `timeout` specifies\n"
- "the maximum number of seconds to wait before returning\n"
- "regardless of wheter the journal has changed. If `timeout` is not given\n"
- "or is 0, then block forever.\n"
+ "the maximum number of microseconds to wait before returning\n"
+ "regardless of wheter the journal has changed. If `timeout` is -1,\n"
+ "then block forever.\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.");
-static PyObject* Reader_wait(Reader *self, PyObject *args, PyObject *keywds)
+static PyObject* Reader_wait(Reader *self, PyObject *args)
{
int r;
- int64_t timeout = 0LL;
+ int64_t timeout;
- if (!PyArg_ParseTuple(args, "|L", &timeout))
+ if (!PyArg_ParseTuple(args, "|L:wait", &timeout))
return NULL;
Py_BEGIN_ALLOW_THREADS
- r = sd_journal_wait(self->j, timeout ==0 ? (uint64_t) -1 : timeout * 1E6);
+ r = sd_journal_wait(self->j, timeout);
Py_END_ALLOW_THREADS
- if (set_error(r, NULL, NULL))
+ if (set_error(r, NULL, NULL) < 0)
return NULL;
return long_FromLong(r);
}
+
PyDoc_STRVAR(Reader_seek_cursor__doc__,
"seek_cursor(cursor) -> None\n\n"
"Seek to journal entry by given unique reference `cursor`.");
const char *cursor;
int r;
- if (!PyArg_ParseTuple(args, "s", &cursor))
+ if (!PyArg_ParseTuple(args, "s:_Reader.seek_cursor", &cursor))
return NULL;
Py_BEGIN_ALLOW_THREADS
Py_RETURN_NONE;
}
+
+PyDoc_STRVAR(Reader_get_cursor__doc__,
+ "get_cursor() -> str\n\n"
+ "Return a cursor string for the current journal entry.\n\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;
+ int r;
+
+ assert(self);
+ assert(!args);
+
+ r = sd_journal_get_cursor(self->j, &cursor);
+ if (set_error(r, NULL, NULL))
+ return NULL;
+
+ return unicode_FromString(cursor);
+}
+
+
+PyDoc_STRVAR(Reader_test_cursor__doc__,
+ "test_cursor(str) -> bool\n\n"
+ "Test whether the cursor string matches current journal entry.\n\n"
+ "Wraps sd_journal_test_cursor(). See man:sd_journal_test_cursor(3).");
+static PyObject* Reader_test_cursor(Reader *self, PyObject *args)
+{
+ const char *cursor;
+ int r;
+
+ assert(self);
+ assert(args);
+
+ if (!PyArg_ParseTuple(args, "s:_Reader.get_cursor", &cursor))
+ return NULL;
+
+ r = sd_journal_test_cursor(self->j, cursor);
+ set_error(r, NULL, NULL);
+ if (r < 0)
+ return NULL;
+
+ return PyBool_FromLong(r);
+}
+
+
static PyObject* Reader_iter(PyObject *self)
{
Py_INCREF(self);
}
}
+
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"
size_t uniq_len;
PyObject *value_set, *key, *value;
- if (!PyArg_ParseTuple(args, "s", &query))
+ if (!PyArg_ParseTuple(args, "s:_Reader.query_unique", &query))
return NULL;
Py_BEGIN_ALLOW_THREADS
return value_set;
}
+
+PyDoc_STRVAR(Reader_get_catalog__doc__,
+ "get_catalog() -> str\n\n"
+ "Retrieve a message catalog entry for the current journal entry.\n"
+ "Wraps man:sd_journal_get_catalog(3).");
+static PyObject* Reader_get_catalog(Reader *self, PyObject *args)
+{
+ int r;
+ char _cleanup_free_ *msg = NULL;
+
+ assert(self);
+ assert(!args);
+
+ Py_BEGIN_ALLOW_THREADS
+ r = sd_journal_get_catalog(self->j, &msg);
+ Py_END_ALLOW_THREADS
+ if (set_error(r, NULL, NULL))
+ return NULL;
+
+ return unicode_FromString(msg);
+}
+
+
+PyDoc_STRVAR(get_catalog__doc__,
+ "get_catalog(id128) -> str\n\n"
+ "Retrieve a message catalog entry for the given id.\n"
+ "Wraps man:sd_journal_get_catalog_for_message_id(3).");
+static PyObject* get_catalog(PyObject *self, PyObject *args)
+{
+ int r;
+ char *id_ = NULL;
+ sd_id128_t id;
+ char _cleanup_free_ *msg = NULL;
+
+ assert(!self);
+ assert(args);
+
+ if (!PyArg_ParseTuple(args, "z:get_catalog", &id_))
+ return NULL;
+
+ r = sd_id128_from_string(id_, &id);
+ if (set_error(r, NULL, "Invalid id128"))
+ return NULL;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = sd_journal_get_catalog_for_message_id(id, &msg);
+ Py_END_ALLOW_THREADS
+ if (set_error(r, NULL, NULL))
+ return NULL;
+
+ return unicode_FromString(msg);
+}
+
+
PyDoc_STRVAR(data_threshold__doc__,
"Threshold for field size truncation in bytes.\n\n"
"Fields longer than this will be truncated to the threshold size.\n"
return set_error(r, NULL, NULL);
}
-static PyGetSetDef Reader_getseters[] = {
+
+PyDoc_STRVAR(closed__doc__,
+ "True iff journal is closed");
+static PyObject* Reader_get_closed(Reader *self, void *closure)
+{
+ return PyBool_FromLong(self->j == NULL);
+}
+
+
+static PyGetSetDef Reader_getsetters[] = {
{(char*) "data_threshold",
(getter) Reader_get_data_threshold,
(setter) Reader_set_data_threshold,
(char*) data_threshold__doc__,
NULL},
+ {(char*) "closed",
+ (getter) Reader_get_closed,
+ NULL,
+ (char*) closed__doc__,
+ NULL},
{NULL}
};
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__},
+ {"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__},
{"get_next", (PyCFunction) Reader_get_next, METH_VARARGS, Reader_get_next__doc__},
{"get_previous", (PyCFunction) Reader_get_previous, METH_VARARGS, Reader_get_previous__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__},
{"flush_matches", (PyCFunction) Reader_flush_matches, METH_NOARGS, Reader_flush_matches__doc__},
- {"seek", (PyCFunction) Reader_seek, METH_VARARGS | METH_KEYWORDS, Reader_seek__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__},
{"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__},
+ {"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__},
{NULL} /* Sentinel */
};
Reader_iternext, /* tp_iternext */
Reader_methods, /* tp_methods */
0, /* tp_members */
- Reader_getseters, /* tp_getset */
+ Reader_getsetters, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
PyType_GenericNew, /* tp_new */
};
-#define SUMMARY \
- "Module that reads the systemd journal similar to journalctl."
+static PyMethodDef methods[] = {
+ { "get_catalog", get_catalog, METH_VARARGS, get_catalog__doc__},
+ { NULL, NULL, 0, NULL } /* Sentinel */
+};
#if PY_MAJOR_VERSION >= 3
-static PyModuleDef _reader_module = {
+static PyModuleDef module = {
PyModuleDef_HEAD_INIT,
"_reader",
- SUMMARY,
+ module__doc__,
-1,
- NULL, NULL, NULL, NULL, NULL
+ methods,
+ NULL, NULL, NULL, NULL
};
#endif
#endif
#if PY_MAJOR_VERSION >= 3
- m = PyModule_Create(&_reader_module);
+ m = PyModule_Create(&module);
if (m == NULL)
return NULL;
initialized = true;
}
#else
- m = Py_InitModule3("_reader", NULL, SUMMARY);
+ m = Py_InitModule3("_reader", methods, module__doc__);
if (m == NULL)
return;
#endif