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 self.send_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
22 self.recv_fd = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET)
29 self.client_fd.close()
31 print("Error - Sockets could not be closed")
35 def __init__(self): # Creates a client instance
36 self.socket = Socket()
43 if self.unregistered == 0:
46 print("Error - Client could not be destroyed")
48 def getFilepath(self, file_path): # Gets arguments from Command-Line and assigns to instance of client
49 self.file_path = file_path
51 def register(self): # Connects a client to DPDK-instance
52 if os.path.exists(self.file_path):
53 os.unlink(self.file_path)
55 self.socket.recv_fd.bind(self.file_path)
56 except socket.error as msg:
57 print ("Error - Socket binding error: " + str(msg) + "\n")
58 self.socket.recv_fd.settimeout(2)
59 self.socket.send_fd.connect("/var/run/dpdk/rte/telemetry")
60 JSON = (API_REG + self.file_path + "\"}}")
61 self.socket.send_fd.sendall(JSON)
62 self.socket.recv_fd.listen(1)
63 self.socket.client_fd = self.socket.recv_fd.accept()[0]
65 def unregister(self): # Unregister a given client
66 self.socket.client_fd.send(API_UNREG + self.file_path + "\"}}")
67 self.socket.client_fd.close()
69 def requestMetrics(self): # Requests metrics for given client
70 self.socket.client_fd.send(METRICS_REQ)
71 data = self.socket.client_fd.recv(BUFFER_SIZE)
72 print "\nResponse: \n", str(data)
74 def repeatedlyRequestMetrics(self, sleep_time): # Recursively requests metrics for given client
75 print("\nPlease enter the number of times you'd like to continuously request Metrics:")
76 n_requests = int(input("\n:"))
77 print("\033[F") #Removes the user input from screen, cleans it up
79 for i in range(n_requests):
81 time.sleep(sleep_time)
83 def requestGlobalMetrics(self): #Requests global metrics for given client
84 self.socket.client_fd.send(GLOBAL_METRICS_REQ)
85 data = self.socket.client_fd.recv(BUFFER_SIZE)
86 print "\nResponse: \n", str(data)
88 def interactiveMenu(self, sleep_time): # Creates Interactive menu within the script
89 while self.choice != 4:
90 print("\nOptions Menu")
91 print("[1] Send for Metrics for all ports")
92 print("[2] Send for Metrics for all ports recursively")
93 print("[3] Send for global Metrics")
94 print("[4] Unregister client")
97 self.choice = int(input("\n:"))
98 print("\033[F") #Removes the user input for screen, cleans it up
101 self.requestMetrics()
102 elif self.choice == 2:
103 self.repeatedlyRequestMetrics(sleep_time)
104 elif self.choice == 3:
105 self.requestGlobalMetrics()
106 elif self.choice == 4:
108 self.unregistered = 1
110 print("Error - Invalid request choice")
114 if __name__ == "__main__":
118 if (len(sys.argv) == 2):
119 file_path = sys.argv[1]
121 print("Warning - No filepath passed, using default (" + DEFAULT_FP + ").")
122 file_path = DEFAULT_FP
124 client.getFilepath(file_path)
126 client.interactiveMenu(sleep_time)