2 # SPDK-License-Identifier: BSD-3-Clause
3 # Copyright(c) 2018 Intel Corporation
12 METRICS_REQ = "{\"action\":0,\"command\":\"ports_all_stat_values\",\"data\":null}"
13 API_REG = "{\"action\":1,\"command\":\"clients\",\"data\":{\"client_path\":\""
14 API_UNREG = "{\"action\":2,\"command\":\"clients\",\"data\":{\"client_path\":\""
15 GLOBAL_METRICS_REQ = "{\"action\":0,\"command\":\"global_stat_values\",\"data\":null}"
16 DEFAULT_FP = "/var/run/dpdk/default_client"
21 raw_input = input # Python 3
26 self.send_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
27 self.recv_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
34 self.client_fd.close()
36 print("Error - Sockets could not be closed")
40 def __init__(self): # Creates a client instance
41 self.socket = Socket()
48 if self.unregistered == 0:
51 print("Error - Client could not be destroyed")
53 def getFilepath(self, file_path): # Gets arguments from Command-Line and assigns to instance of client
54 self.file_path = file_path
56 def register(self): # Connects a client to DPDK-instance
57 if os.path.exists(self.file_path):
58 os.unlink(self.file_path)
60 self.socket.recv_fd.bind(self.file_path)
61 except socket.error as msg:
62 print ("Error - Socket binding error: " + str(msg) + "\n")
63 self.socket.recv_fd.settimeout(2)
64 self.socket.send_fd.connect("/var/run/dpdk/rte/telemetry")
65 JSON = (API_REG + self.file_path + "\"}}")
66 self.socket.send_fd.sendall(JSON)
67 self.socket.recv_fd.listen(1)
68 self.socket.client_fd = self.socket.recv_fd.accept()[0]
70 def unregister(self): # Unregister a given client
71 self.socket.client_fd.send(API_UNREG + self.file_path + "\"}}")
72 self.socket.client_fd.close()
74 def requestMetrics(self): # Requests metrics for given client
75 self.socket.client_fd.send(METRICS_REQ)
76 data = self.socket.client_fd.recv(BUFFER_SIZE)
77 print "\nResponse: \n", str(data)
79 def repeatedlyRequestMetrics(self, sleep_time): # Recursively requests metrics for given client
80 print("\nPlease enter the number of times you'd like to continuously request Metrics:")
81 n_requests = int(raw_input("\n:"))
82 print("\033[F") #Removes the user input from screen, cleans it up
84 for i in range(n_requests):
86 time.sleep(sleep_time)
88 def requestGlobalMetrics(self): #Requests global metrics for given client
89 self.socket.client_fd.send(GLOBAL_METRICS_REQ)
90 data = self.socket.client_fd.recv(BUFFER_SIZE)
91 print "\nResponse: \n", str(data)
93 def interactiveMenu(self, sleep_time): # Creates Interactive menu within the script
94 while self.choice != 4:
95 print("\nOptions Menu")
96 print("[1] Send for Metrics for all ports")
97 print("[2] Send for Metrics for all ports recursively")
98 print("[3] Send for global Metrics")
99 print("[4] Unregister client")
102 self.choice = int(raw_input("\n:"))
103 print("\033[F") #Removes the user input for screen, cleans it up
106 self.requestMetrics()
107 elif self.choice == 2:
108 self.repeatedlyRequestMetrics(sleep_time)
109 elif self.choice == 3:
110 self.requestGlobalMetrics()
111 elif self.choice == 4:
113 self.unregistered = 1
115 print("Error - Invalid request choice")
119 if __name__ == "__main__":
123 if (len(sys.argv) == 2):
124 file_path = sys.argv[1]
126 print("Warning - No filepath passed, using default (" + DEFAULT_FP + ").")
127 file_path = DEFAULT_FP
129 client.getFilepath(file_path)
131 client.interactiveMenu(sleep_time)