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 DEFAULT_FP = "/var/run/dpdk/default_client"
20 self.send_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
21 self.recv_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
28 self.client_fd.close()
30 print("Error - Sockets could not be closed")
34 def __init__(self): # Creates a client instance
35 self.socket = Socket()
42 if self.unregistered == 0:
45 print("Error - Client could not be destroyed")
47 def getFilepath(self, file_path): # Gets arguments from Command-Line and assigns to instance of client
48 self.file_path = file_path
50 def register(self): # Connects a client to DPDK-instance
51 if os.path.exists(self.file_path):
52 os.unlink(self.file_path)
54 self.socket.recv_fd.bind(self.file_path)
55 except socket.error as msg:
56 print ("Error - Socket binding error: " + str(msg) + "\n")
57 self.socket.recv_fd.settimeout(2)
58 self.socket.send_fd.connect("/var/run/dpdk/rte/telemetry")
59 JSON = (API_REG + self.file_path + "\"}}")
60 self.socket.send_fd.sendall(JSON)
61 self.socket.recv_fd.listen(1)
62 self.socket.client_fd = self.socket.recv_fd.accept()[0]
64 def unregister(self): # Unregister a given client
65 self.socket.client_fd.send(API_UNREG + self.file_path + "\"}}")
66 self.socket.client_fd.close()
68 def requestMetrics(self): # Requests metrics for given client
69 self.socket.client_fd.send(METRICS_REQ)
70 data = self.socket.client_fd.recv(BUFFER_SIZE)
71 print "\nResponse: \n", str(data)
73 def repeatedlyRequestMetrics(self, sleep_time): # Recursively requests metrics for given client
74 print("\nPlease enter the number of times you'd like to continuously request Metrics:")
75 n_requests = int(input("\n:"))
76 print("\033[F") #Removes the user input from screen, cleans it up
78 for i in range(n_requests):
80 time.sleep(sleep_time)
82 def interactiveMenu(self, sleep_time): # Creates Interactive menu within the script
83 while self.choice != 3:
84 print("\nOptions Menu")
85 print("[1] Send for Metrics for all ports")
86 print("[2] Send for Metrics for all ports recursively")
87 print("[3] Unregister client")
90 self.choice = int(input("\n:"))
91 print("\033[F") #Removes the user input for screen, cleans it up
95 elif self.choice == 2:
96 self.repeatedlyRequestMetrics(sleep_time)
97 elif self.choice == 3:
101 print("Error - Invalid request choice")
105 if __name__ == "__main__":
109 if (len(sys.argv) == 2):
110 file_path = sys.argv[1]
112 print("Warning - No filepath passed, using default (" + DEFAULT_FP + ").")
113 file_path = DEFAULT_FP
115 client.getFilepath(file_path)
117 client.interactiveMenu(sleep_time)