STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE,
STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED,
STAT_DIR_TYPE_ERROR_INDEX,
+ STAT_DIR_TYPE_NAME_VECTOR,
} stat_directory_type_t;
typedef struct
union
{
double scalar_value;
- uint64_t error_value;
+ counter_t *error_vector;
counter_t **simple_counter_vec;
vlib_counter_t **combined_counter_vec;
+ uint8_t **name_vector;
};
} stat_segment_data_t;
void stat_segment_data_free (stat_segment_data_t * res);
double stat_segment_heartbeat_r (stat_client_main_t * sm);
-double stat_segment_heartbeat (void);
int stat_segment_vec_len(void *vec);
uint8_t **stat_segment_string_vector(uint8_t **string_vector, char *string);
+char *stat_segment_index_to_name_r (uint32_t index, stat_client_main_t * sm);
+void free(void *ptr);
""")
strings = [strings]
for s in strings:
vec = api.stat_segment_string_vector(vec, ffi.new("char []",
- s.encode()))
+ s.encode('utf-8')))
return vec
vec.append(if_per_thread)
return vec
+def error_vec_list(api, e):
+ vec = []
+ for thread in range(api.stat_segment_vec_len(e)):
+ vec.append(e[thread])
+ return vec
+
+def name_vec_list(api, e):
+ return [ffi.string(e[i]).decode('utf-8') for i in range(api.stat_segment_vec_len(e)) if e[i] != ffi.NULL]
def stat_entry_to_python(api, e):
# Scalar index
if e.type == 1:
return e.scalar_value
- return None
if e.type == 2:
return simple_counter_vec_list(api, e.simple_counter_vec)
if e.type == 3:
return combined_counter_vec_list(api, e.combined_counter_vec)
if e.type == 4:
- return e.error_value
- return None
+ return error_vec_list(api, e.error_vector)
+ if e.type == 5:
+ return name_vec_list(api, e.name_vector)
+ raise NotImplementedError()
+
+
+class VPPStatsIOError(IOError):
+ message = "Stat segment client connection returned: " \
+ "%(retval)s %(strerror)s."
+
+ strerror = {-1: "Stat client couldn't open socket",
+ -2: "Stat client socket open but couldn't connect",
+ -3: "Receiving file descriptor failed",
+ -4: "mmap fstat failed",
+ -5: "mmap map failed"
+ }
+
+ def __init__(self, message=None, **kwargs):
+ if 'retval' in kwargs:
+ self.retval = kwargs['retval']
+ kwargs['strerror'] = self.strerror[int(self.retval)]
+
+ if not message:
+ try:
+ message = self.message % kwargs
+ except Exception as e:
+ message = self.message
+ else:
+ message = message % kwargs
+
+ super(VPPStatsIOError, self).__init__(message)
+
+
+class VPPStatsClientLoadError(RuntimeError):
+ pass
class VPPStats(object):
- def __init__(self, socketname='/var/run/stats.sock', timeout=10):
+ VPPStatsIOError = VPPStatsIOError
+
+ default_socketname = '/var/run/vpp/stats.sock'
+ sharedlib_name = 'libvppapiclient.so'
+
+ def __init__(self, socketname=default_socketname, timeout=10):
try:
- self.api = ffi.dlopen('libvppapiclient.so')
+ self.api = ffi.dlopen(VPPStats.sharedlib_name)
except Exception:
- raise RuntimeError("Could not open: libvppapiclient.so")
+ raise VPPStatsClientLoadError("Could not open: %s" %
+ VPPStats.sharedlib_name)
self.client = self.api.stat_client_get()
poll_end_time = time.time() + timeout
while time.time() < poll_end_time:
- rv = self.api.stat_segment_connect_r(socketname.encode(),
+ rv = self.api.stat_segment_connect_r(socketname.encode('utf-8'),
self.client)
- if rv == 0:
+ # Break out if success or any other error than "no such file"
+ # (indicating that VPP hasn't started yet)
+ if rv == 0 or ffi.errno != 2:
break
if rv != 0:
- raise IOError()
+ raise VPPStatsIOError(retval=rv)
def heartbeat(self):
return self.api.stat_segment_heartbeat_r(self.client)
patterns),
self.client)
+ def lsstr(self, patterns):
+ rv = self.api.stat_segment_ls_r(make_string_vector(self.api,
+ patterns),
+ self.client)
+
+ if rv == ffi.NULL:
+ raise VPPStatsIOError()
+ return [ffi.string(self.api.stat_segment_index_to_name_r(rv[i], self.client)).decode('utf-8')
+ for i in range(self.api.stat_segment_vec_len(rv))]
+
def dump(self, counters):
stats = {}
rv = self.api.stat_segment_dump_r(counters, self.client)
# Raise exception and retry
if rv == ffi.NULL:
- raise IOError()
+ raise VPPStatsIOError()
rv_len = self.api.stat_segment_vec_len(rv)
+
for i in range(rv_len):
- n = ffi.string(rv[i].name).decode()
+ n = ffi.string(rv[i].name).decode('utf-8')
e = stat_entry_to_python(self.api, rv[i])
if e is not None:
stats[n] = e
retries = 0
while True:
try:
- dir = self.ls(name)
- return self.dump(dir).values()[0]
- except Exception as e:
+ d = self.ls(name)
+ s = self.dump(d)
+ if len(s) > 1:
+ raise AttributeError('Matches multiple counters {}'
+ .format(name))
+ k, v = s.popitem()
+ return v
+ except VPPStatsIOError as e:
if retries > 10:
return None
retries += 1
+ def get_err_counter(self, name):
+ """Get an error counter. The errors from each worker thread
+ are summed"""
+ return sum(self.get_counter(name))
+
def disconnect(self):
self.api.stat_segment_disconnect_r(self.client)
self.api.stat_client_free(self.client)
error_names = self.ls(['/err/'])
error_counters = self.dump(error_names)
break
- except Exception as e:
+ except VPPStatsIOError as e:
if retries > 10:
return None
retries += 1
- return {k: error_counters[k]
- for k in error_counters.keys() if error_counters[k]}
+ return {k: sum(error_counters[k])
+ for k in error_counters.keys() if sum(error_counters[k])}
def set_errors_str(self):
'''Return all errors counters > 0 pretty printed'''
Code Review / vpp.git / blobdiff