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@@ -1,371 +1,372 b'' | |||||
1 | """An Application for launching a kernel |
|
1 | """An Application for launching a kernel | |
2 |
|
2 | |||
3 | Authors |
|
3 | Authors | |
4 | ------- |
|
4 | ------- | |
5 | * MinRK |
|
5 | * MinRK | |
6 | """ |
|
6 | """ | |
7 | #----------------------------------------------------------------------------- |
|
7 | #----------------------------------------------------------------------------- | |
8 | # Copyright (C) 2011 The IPython Development Team |
|
8 | # Copyright (C) 2011 The IPython Development Team | |
9 | # |
|
9 | # | |
10 | # Distributed under the terms of the BSD License. The full license is in |
|
10 | # Distributed under the terms of the BSD License. The full license is in | |
11 | # the file COPYING.txt, distributed as part of this software. |
|
11 | # the file COPYING.txt, distributed as part of this software. | |
12 | #----------------------------------------------------------------------------- |
|
12 | #----------------------------------------------------------------------------- | |
13 |
|
13 | |||
14 | #----------------------------------------------------------------------------- |
|
14 | #----------------------------------------------------------------------------- | |
15 | # Imports |
|
15 | # Imports | |
16 | #----------------------------------------------------------------------------- |
|
16 | #----------------------------------------------------------------------------- | |
17 |
|
17 | |||
18 | # Standard library imports |
|
18 | # Standard library imports | |
19 | import atexit |
|
19 | import atexit | |
20 | import json |
|
20 | import json | |
21 | import os |
|
21 | import os | |
22 | import sys |
|
22 | import sys | |
23 | import signal |
|
23 | import signal | |
24 |
|
24 | |||
25 | # System library imports |
|
25 | # System library imports | |
26 | import zmq |
|
26 | import zmq | |
27 | from zmq.eventloop import ioloop |
|
27 | from zmq.eventloop import ioloop | |
28 |
|
28 | |||
29 | # IPython imports |
|
29 | # IPython imports | |
30 | from IPython.core.ultratb import FormattedTB |
|
30 | from IPython.core.ultratb import FormattedTB | |
31 | from IPython.core.application import ( |
|
31 | from IPython.core.application import ( | |
32 | BaseIPythonApplication, base_flags, base_aliases, catch_config_error |
|
32 | BaseIPythonApplication, base_flags, base_aliases, catch_config_error | |
33 | ) |
|
33 | ) | |
34 | from IPython.utils import io |
|
34 | from IPython.utils import io | |
35 | from IPython.utils.localinterfaces import LOCALHOST |
|
35 | from IPython.utils.localinterfaces import LOCALHOST | |
36 | from IPython.utils.path import filefind |
|
36 | from IPython.utils.path import filefind | |
37 | from IPython.utils.py3compat import str_to_bytes |
|
37 | from IPython.utils.py3compat import str_to_bytes | |
38 | from IPython.utils.traitlets import ( |
|
38 | from IPython.utils.traitlets import ( | |
39 | Any, Instance, Dict, Unicode, Integer, Bool, CaselessStrEnum, |
|
39 | Any, Instance, Dict, Unicode, Integer, Bool, CaselessStrEnum, | |
40 | DottedObjectName, |
|
40 | DottedObjectName, | |
41 | ) |
|
41 | ) | |
42 | from IPython.utils.importstring import import_item |
|
42 | from IPython.utils.importstring import import_item | |
43 | # local imports |
|
43 | # local imports | |
44 | from IPython.zmq.entry_point import write_connection_file |
|
44 | from IPython.zmq.entry_point import write_connection_file | |
45 | from IPython.zmq.heartbeat import Heartbeat |
|
45 | from IPython.zmq.heartbeat import Heartbeat | |
46 | from IPython.zmq.parentpoller import ParentPollerUnix, ParentPollerWindows |
|
46 | from IPython.zmq.parentpoller import ParentPollerUnix, ParentPollerWindows | |
47 | from IPython.zmq.session import ( |
|
47 | from IPython.zmq.session import ( | |
48 | Session, session_flags, session_aliases, default_secure, |
|
48 | Session, session_flags, session_aliases, default_secure, | |
49 | ) |
|
49 | ) | |
50 |
|
50 | |||
51 |
|
51 | |||
52 | #----------------------------------------------------------------------------- |
|
52 | #----------------------------------------------------------------------------- | |
53 | # Flags and Aliases |
|
53 | # Flags and Aliases | |
54 | #----------------------------------------------------------------------------- |
|
54 | #----------------------------------------------------------------------------- | |
55 |
|
55 | |||
56 | kernel_aliases = dict(base_aliases) |
|
56 | kernel_aliases = dict(base_aliases) | |
57 | kernel_aliases.update({ |
|
57 | kernel_aliases.update({ | |
58 | 'ip' : 'KernelApp.ip', |
|
58 | 'ip' : 'KernelApp.ip', | |
59 | 'hb' : 'KernelApp.hb_port', |
|
59 | 'hb' : 'KernelApp.hb_port', | |
60 | 'shell' : 'KernelApp.shell_port', |
|
60 | 'shell' : 'KernelApp.shell_port', | |
61 | 'iopub' : 'KernelApp.iopub_port', |
|
61 | 'iopub' : 'KernelApp.iopub_port', | |
62 | 'stdin' : 'KernelApp.stdin_port', |
|
62 | 'stdin' : 'KernelApp.stdin_port', | |
63 | 'f' : 'KernelApp.connection_file', |
|
63 | 'f' : 'KernelApp.connection_file', | |
64 | 'parent': 'KernelApp.parent', |
|
64 | 'parent': 'KernelApp.parent', | |
65 | 'transport': 'KernelApp.transport', |
|
65 | 'transport': 'KernelApp.transport', | |
66 | }) |
|
66 | }) | |
67 | if sys.platform.startswith('win'): |
|
67 | if sys.platform.startswith('win'): | |
68 | kernel_aliases['interrupt'] = 'KernelApp.interrupt' |
|
68 | kernel_aliases['interrupt'] = 'KernelApp.interrupt' | |
69 |
|
69 | |||
70 | kernel_flags = dict(base_flags) |
|
70 | kernel_flags = dict(base_flags) | |
71 | kernel_flags.update({ |
|
71 | kernel_flags.update({ | |
72 | 'no-stdout' : ( |
|
72 | 'no-stdout' : ( | |
73 | {'KernelApp' : {'no_stdout' : True}}, |
|
73 | {'KernelApp' : {'no_stdout' : True}}, | |
74 | "redirect stdout to the null device"), |
|
74 | "redirect stdout to the null device"), | |
75 | 'no-stderr' : ( |
|
75 | 'no-stderr' : ( | |
76 | {'KernelApp' : {'no_stderr' : True}}, |
|
76 | {'KernelApp' : {'no_stderr' : True}}, | |
77 | "redirect stderr to the null device"), |
|
77 | "redirect stderr to the null device"), | |
78 | }) |
|
78 | }) | |
79 |
|
79 | |||
80 | # inherit flags&aliases for Sessions |
|
80 | # inherit flags&aliases for Sessions | |
81 | kernel_aliases.update(session_aliases) |
|
81 | kernel_aliases.update(session_aliases) | |
82 | kernel_flags.update(session_flags) |
|
82 | kernel_flags.update(session_flags) | |
83 |
|
83 | |||
84 |
|
84 | |||
85 |
|
85 | |||
86 | #----------------------------------------------------------------------------- |
|
86 | #----------------------------------------------------------------------------- | |
87 | # Application class for starting a Kernel |
|
87 | # Application class for starting a Kernel | |
88 | #----------------------------------------------------------------------------- |
|
88 | #----------------------------------------------------------------------------- | |
89 |
|
89 | |||
90 | class KernelApp(BaseIPythonApplication): |
|
90 | class KernelApp(BaseIPythonApplication): | |
91 | name='ipkernel' |
|
91 | name='ipkernel' | |
92 | aliases = Dict(kernel_aliases) |
|
92 | aliases = Dict(kernel_aliases) | |
93 | flags = Dict(kernel_flags) |
|
93 | flags = Dict(kernel_flags) | |
94 | classes = [Session] |
|
94 | classes = [Session] | |
95 | # the kernel class, as an importstring |
|
95 | # the kernel class, as an importstring | |
96 | kernel_class = DottedObjectName('IPython.zmq.ipkernel.Kernel') |
|
96 | kernel_class = DottedObjectName('IPython.zmq.ipkernel.Kernel') | |
97 | kernel = Any() |
|
97 | kernel = Any() | |
98 | poller = Any() # don't restrict this even though current pollers are all Threads |
|
98 | poller = Any() # don't restrict this even though current pollers are all Threads | |
99 | heartbeat = Instance(Heartbeat) |
|
99 | heartbeat = Instance(Heartbeat) | |
100 | session = Instance('IPython.zmq.session.Session') |
|
100 | session = Instance('IPython.zmq.session.Session') | |
101 | ports = Dict() |
|
101 | ports = Dict() | |
102 |
|
102 | |||
103 | # inherit config file name from parent: |
|
103 | # inherit config file name from parent: | |
104 | parent_appname = Unicode(config=True) |
|
104 | parent_appname = Unicode(config=True) | |
105 | def _parent_appname_changed(self, name, old, new): |
|
105 | def _parent_appname_changed(self, name, old, new): | |
106 | if self.config_file_specified: |
|
106 | if self.config_file_specified: | |
107 | # it was manually specified, ignore |
|
107 | # it was manually specified, ignore | |
108 | return |
|
108 | return | |
109 | self.config_file_name = new.replace('-','_') + u'_config.py' |
|
109 | self.config_file_name = new.replace('-','_') + u'_config.py' | |
110 | # don't let this count as specifying the config file |
|
110 | # don't let this count as specifying the config file | |
111 | self.config_file_specified = False |
|
111 | self.config_file_specified = False | |
112 |
|
112 | |||
113 | # connection info: |
|
113 | # connection info: | |
114 | transport = CaselessStrEnum(['tcp', 'ipc'], default_value='tcp', config=True) |
|
114 | transport = CaselessStrEnum(['tcp', 'ipc'], default_value='tcp', config=True) | |
115 | ip = Unicode(config=True, |
|
115 | ip = Unicode(config=True, | |
116 | help="Set the IP or interface on which the kernel will listen.") |
|
116 | help="Set the IP or interface on which the kernel will listen.") | |
117 | def _ip_default(self): |
|
117 | def _ip_default(self): | |
118 | if self.transport == 'ipc': |
|
118 | if self.transport == 'ipc': | |
119 | if self.connection_file: |
|
119 | if self.connection_file: | |
120 | return os.path.splitext(self.abs_connection_file)[0] + '-ipc' |
|
120 | return os.path.splitext(self.abs_connection_file)[0] + '-ipc' | |
121 | else: |
|
121 | else: | |
122 | return 'kernel-ipc' |
|
122 | return 'kernel-ipc' | |
123 | else: |
|
123 | else: | |
124 | return LOCALHOST |
|
124 | return LOCALHOST | |
125 | hb_port = Integer(0, config=True, help="set the heartbeat port [default: random]") |
|
125 | hb_port = Integer(0, config=True, help="set the heartbeat port [default: random]") | |
126 | shell_port = Integer(0, config=True, help="set the shell (ROUTER) port [default: random]") |
|
126 | shell_port = Integer(0, config=True, help="set the shell (ROUTER) port [default: random]") | |
127 | iopub_port = Integer(0, config=True, help="set the iopub (PUB) port [default: random]") |
|
127 | iopub_port = Integer(0, config=True, help="set the iopub (PUB) port [default: random]") | |
128 | stdin_port = Integer(0, config=True, help="set the stdin (DEALER) port [default: random]") |
|
128 | stdin_port = Integer(0, config=True, help="set the stdin (DEALER) port [default: random]") | |
129 | connection_file = Unicode('', config=True, |
|
129 | connection_file = Unicode('', config=True, | |
130 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] |
|
130 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] | |
131 |
|
131 | |||
132 | This file will contain the IP, ports, and authentication key needed to connect |
|
132 | This file will contain the IP, ports, and authentication key needed to connect | |
133 | clients to this kernel. By default, this file will be created in the security dir |
|
133 | clients to this kernel. By default, this file will be created in the security dir | |
134 | of the current profile, but can be specified by absolute path. |
|
134 | of the current profile, but can be specified by absolute path. | |
135 | """) |
|
135 | """) | |
136 | @property |
|
136 | @property | |
137 | def abs_connection_file(self): |
|
137 | def abs_connection_file(self): | |
138 | if os.path.basename(self.connection_file) == self.connection_file: |
|
138 | if os.path.basename(self.connection_file) == self.connection_file: | |
139 | return os.path.join(self.profile_dir.security_dir, self.connection_file) |
|
139 | return os.path.join(self.profile_dir.security_dir, self.connection_file) | |
140 | else: |
|
140 | else: | |
141 | return self.connection_file |
|
141 | return self.connection_file | |
142 |
|
142 | |||
143 |
|
143 | |||
144 | # streams, etc. |
|
144 | # streams, etc. | |
145 | no_stdout = Bool(False, config=True, help="redirect stdout to the null device") |
|
145 | no_stdout = Bool(False, config=True, help="redirect stdout to the null device") | |
146 | no_stderr = Bool(False, config=True, help="redirect stderr to the null device") |
|
146 | no_stderr = Bool(False, config=True, help="redirect stderr to the null device") | |
147 | outstream_class = DottedObjectName('IPython.zmq.iostream.OutStream', |
|
147 | outstream_class = DottedObjectName('IPython.zmq.iostream.OutStream', | |
148 | config=True, help="The importstring for the OutStream factory") |
|
148 | config=True, help="The importstring for the OutStream factory") | |
149 | displayhook_class = DottedObjectName('IPython.zmq.displayhook.ZMQDisplayHook', |
|
149 | displayhook_class = DottedObjectName('IPython.zmq.displayhook.ZMQDisplayHook', | |
150 | config=True, help="The importstring for the DisplayHook factory") |
|
150 | config=True, help="The importstring for the DisplayHook factory") | |
151 |
|
151 | |||
152 | # polling |
|
152 | # polling | |
153 | parent = Integer(0, config=True, |
|
153 | parent = Integer(0, config=True, | |
154 | help="""kill this process if its parent dies. On Windows, the argument |
|
154 | help="""kill this process if its parent dies. On Windows, the argument | |
155 | specifies the HANDLE of the parent process, otherwise it is simply boolean. |
|
155 | specifies the HANDLE of the parent process, otherwise it is simply boolean. | |
156 | """) |
|
156 | """) | |
157 | interrupt = Integer(0, config=True, |
|
157 | interrupt = Integer(0, config=True, | |
158 | help="""ONLY USED ON WINDOWS |
|
158 | help="""ONLY USED ON WINDOWS | |
159 | Interrupt this process when the parent is signaled. |
|
159 | Interrupt this process when the parent is signaled. | |
160 | """) |
|
160 | """) | |
161 |
|
161 | |||
162 | def init_crash_handler(self): |
|
162 | def init_crash_handler(self): | |
163 | # Install minimal exception handling |
|
163 | # Install minimal exception handling | |
164 | sys.excepthook = FormattedTB(mode='Verbose', color_scheme='NoColor', |
|
164 | sys.excepthook = FormattedTB(mode='Verbose', color_scheme='NoColor', | |
165 | ostream=sys.__stdout__) |
|
165 | ostream=sys.__stdout__) | |
166 |
|
166 | |||
167 | def init_poller(self): |
|
167 | def init_poller(self): | |
168 | if sys.platform == 'win32': |
|
168 | if sys.platform == 'win32': | |
169 | if self.interrupt or self.parent: |
|
169 | if self.interrupt or self.parent: | |
170 | self.poller = ParentPollerWindows(self.interrupt, self.parent) |
|
170 | self.poller = ParentPollerWindows(self.interrupt, self.parent) | |
171 | elif self.parent: |
|
171 | elif self.parent: | |
172 | self.poller = ParentPollerUnix() |
|
172 | self.poller = ParentPollerUnix() | |
173 |
|
173 | |||
174 | def _bind_socket(self, s, port): |
|
174 | def _bind_socket(self, s, port): | |
175 | iface = '%s://%s' % (self.transport, self.ip) |
|
175 | iface = '%s://%s' % (self.transport, self.ip) | |
176 | if self.transport == 'tcp': |
|
176 | if self.transport == 'tcp': | |
177 | if port <= 0: |
|
177 | if port <= 0: | |
178 | port = s.bind_to_random_port(iface) |
|
178 | port = s.bind_to_random_port(iface) | |
179 | else: |
|
179 | else: | |
180 | s.bind("tcp://%s:%i" % (self.ip, port)) |
|
180 | s.bind("tcp://%s:%i" % (self.ip, port)) | |
181 | elif self.transport == 'ipc': |
|
181 | elif self.transport == 'ipc': | |
182 | if port <= 0: |
|
182 | if port <= 0: | |
183 |
|
|
183 | port = 1 | |
|
184 | path = "%s-%i" % (self.ip, port) | |||
|
185 | while os.path.exists(path): | |||
|
186 | port = port + 1 | |||
184 | path = "%s-%i" % (self.ip, port) |
|
187 | path = "%s-%i" % (self.ip, port) | |
185 | if not os.path.exists(path): |
|
|||
186 | break |
|
|||
187 | else: |
|
188 | else: | |
188 | path = "%s-%i" % (self.ip, port) |
|
189 | path = "%s-%i" % (self.ip, port) | |
189 | s.bind("ipc://%s" % path) |
|
190 | s.bind("ipc://%s" % path) | |
190 | return port |
|
191 | return port | |
191 |
|
192 | |||
192 | def load_connection_file(self): |
|
193 | def load_connection_file(self): | |
193 | """load ip/port/hmac config from JSON connection file""" |
|
194 | """load ip/port/hmac config from JSON connection file""" | |
194 | try: |
|
195 | try: | |
195 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) |
|
196 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) | |
196 | except IOError: |
|
197 | except IOError: | |
197 | self.log.debug("Connection file not found: %s", self.connection_file) |
|
198 | self.log.debug("Connection file not found: %s", self.connection_file) | |
198 | # This means I own it, so I will clean it up: |
|
199 | # This means I own it, so I will clean it up: | |
199 | atexit.register(self.cleanup_connection_file) |
|
200 | atexit.register(self.cleanup_connection_file) | |
200 | return |
|
201 | return | |
201 | self.log.debug(u"Loading connection file %s", fname) |
|
202 | self.log.debug(u"Loading connection file %s", fname) | |
202 | with open(fname) as f: |
|
203 | with open(fname) as f: | |
203 | s = f.read() |
|
204 | s = f.read() | |
204 | cfg = json.loads(s) |
|
205 | cfg = json.loads(s) | |
205 | self.transport = cfg.get('transport', self.transport) |
|
206 | self.transport = cfg.get('transport', self.transport) | |
206 | if self.ip == self._ip_default() and 'ip' in cfg: |
|
207 | if self.ip == self._ip_default() and 'ip' in cfg: | |
207 | # not overridden by config or cl_args |
|
208 | # not overridden by config or cl_args | |
208 | self.ip = cfg['ip'] |
|
209 | self.ip = cfg['ip'] | |
209 | for channel in ('hb', 'shell', 'iopub', 'stdin'): |
|
210 | for channel in ('hb', 'shell', 'iopub', 'stdin'): | |
210 | name = channel + '_port' |
|
211 | name = channel + '_port' | |
211 | if getattr(self, name) == 0 and name in cfg: |
|
212 | if getattr(self, name) == 0 and name in cfg: | |
212 | # not overridden by config or cl_args |
|
213 | # not overridden by config or cl_args | |
213 | setattr(self, name, cfg[name]) |
|
214 | setattr(self, name, cfg[name]) | |
214 | if 'key' in cfg: |
|
215 | if 'key' in cfg: | |
215 | self.config.Session.key = str_to_bytes(cfg['key']) |
|
216 | self.config.Session.key = str_to_bytes(cfg['key']) | |
216 |
|
217 | |||
217 | def write_connection_file(self): |
|
218 | def write_connection_file(self): | |
218 | """write connection info to JSON file""" |
|
219 | """write connection info to JSON file""" | |
219 | cf = self.abs_connection_file |
|
220 | cf = self.abs_connection_file | |
220 | self.log.debug("Writing connection file: %s", cf) |
|
221 | self.log.debug("Writing connection file: %s", cf) | |
221 | write_connection_file(cf, ip=self.ip, key=self.session.key, transport=self.transport, |
|
222 | write_connection_file(cf, ip=self.ip, key=self.session.key, transport=self.transport, | |
222 | shell_port=self.shell_port, stdin_port=self.stdin_port, hb_port=self.hb_port, |
|
223 | shell_port=self.shell_port, stdin_port=self.stdin_port, hb_port=self.hb_port, | |
223 | iopub_port=self.iopub_port) |
|
224 | iopub_port=self.iopub_port) | |
224 |
|
225 | |||
225 | def cleanup_connection_file(self): |
|
226 | def cleanup_connection_file(self): | |
226 | cf = self.abs_connection_file |
|
227 | cf = self.abs_connection_file | |
227 | self.log.debug("Cleaning up connection file: %s", cf) |
|
228 | self.log.debug("Cleaning up connection file: %s", cf) | |
228 | try: |
|
229 | try: | |
229 | os.remove(cf) |
|
230 | os.remove(cf) | |
230 | except (IOError, OSError): |
|
231 | except (IOError, OSError): | |
231 | pass |
|
232 | pass | |
232 |
|
233 | |||
233 | self.cleanup_ipc_files() |
|
234 | self.cleanup_ipc_files() | |
234 |
|
235 | |||
235 | def cleanup_ipc_files(self): |
|
236 | def cleanup_ipc_files(self): | |
236 | """cleanup ipc files if we wrote them""" |
|
237 | """cleanup ipc files if we wrote them""" | |
237 | if self.transport != 'ipc': |
|
238 | if self.transport != 'ipc': | |
238 | return |
|
239 | return | |
239 | for port in (self.shell_port, self.iopub_port, self.stdin_port, self.hb_port): |
|
240 | for port in (self.shell_port, self.iopub_port, self.stdin_port, self.hb_port): | |
240 | ipcfile = "%s-%i" % (self.ip, port) |
|
241 | ipcfile = "%s-%i" % (self.ip, port) | |
241 | try: |
|
242 | try: | |
242 | os.remove(ipcfile) |
|
243 | os.remove(ipcfile) | |
243 | except (IOError, OSError): |
|
244 | except (IOError, OSError): | |
244 | pass |
|
245 | pass | |
245 |
|
246 | |||
246 | def init_connection_file(self): |
|
247 | def init_connection_file(self): | |
247 | if not self.connection_file: |
|
248 | if not self.connection_file: | |
248 | self.connection_file = "kernel-%s.json"%os.getpid() |
|
249 | self.connection_file = "kernel-%s.json"%os.getpid() | |
249 | try: |
|
250 | try: | |
250 | self.load_connection_file() |
|
251 | self.load_connection_file() | |
251 | except Exception: |
|
252 | except Exception: | |
252 | self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True) |
|
253 | self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True) | |
253 | self.exit(1) |
|
254 | self.exit(1) | |
254 |
|
255 | |||
255 | def init_sockets(self): |
|
256 | def init_sockets(self): | |
256 | # Create a context, a session, and the kernel sockets. |
|
257 | # Create a context, a session, and the kernel sockets. | |
257 | self.log.info("Starting the kernel at pid: %i", os.getpid()) |
|
258 | self.log.info("Starting the kernel at pid: %i", os.getpid()) | |
258 | context = zmq.Context.instance() |
|
259 | context = zmq.Context.instance() | |
259 | # Uncomment this to try closing the context. |
|
260 | # Uncomment this to try closing the context. | |
260 | # atexit.register(context.term) |
|
261 | # atexit.register(context.term) | |
261 |
|
262 | |||
262 | self.shell_socket = context.socket(zmq.ROUTER) |
|
263 | self.shell_socket = context.socket(zmq.ROUTER) | |
263 | self.shell_port = self._bind_socket(self.shell_socket, self.shell_port) |
|
264 | self.shell_port = self._bind_socket(self.shell_socket, self.shell_port) | |
264 | self.log.debug("shell ROUTER Channel on port: %i"%self.shell_port) |
|
265 | self.log.debug("shell ROUTER Channel on port: %i"%self.shell_port) | |
265 |
|
266 | |||
266 | self.iopub_socket = context.socket(zmq.PUB) |
|
267 | self.iopub_socket = context.socket(zmq.PUB) | |
267 | self.iopub_port = self._bind_socket(self.iopub_socket, self.iopub_port) |
|
268 | self.iopub_port = self._bind_socket(self.iopub_socket, self.iopub_port) | |
268 | self.log.debug("iopub PUB Channel on port: %i"%self.iopub_port) |
|
269 | self.log.debug("iopub PUB Channel on port: %i"%self.iopub_port) | |
269 |
|
270 | |||
270 | self.stdin_socket = context.socket(zmq.ROUTER) |
|
271 | self.stdin_socket = context.socket(zmq.ROUTER) | |
271 | self.stdin_port = self._bind_socket(self.stdin_socket, self.stdin_port) |
|
272 | self.stdin_port = self._bind_socket(self.stdin_socket, self.stdin_port) | |
272 | self.log.debug("stdin ROUTER Channel on port: %i"%self.stdin_port) |
|
273 | self.log.debug("stdin ROUTER Channel on port: %i"%self.stdin_port) | |
273 |
|
274 | |||
274 | def init_heartbeat(self): |
|
275 | def init_heartbeat(self): | |
275 | """start the heart beating""" |
|
276 | """start the heart beating""" | |
276 | # heartbeat doesn't share context, because it mustn't be blocked |
|
277 | # heartbeat doesn't share context, because it mustn't be blocked | |
277 | # by the GIL, which is accessed by libzmq when freeing zero-copy messages |
|
278 | # by the GIL, which is accessed by libzmq when freeing zero-copy messages | |
278 | hb_ctx = zmq.Context() |
|
279 | hb_ctx = zmq.Context() | |
279 | self.heartbeat = Heartbeat(hb_ctx, (self.transport, self.ip, self.hb_port)) |
|
280 | self.heartbeat = Heartbeat(hb_ctx, (self.transport, self.ip, self.hb_port)) | |
280 | self.hb_port = self.heartbeat.port |
|
281 | self.hb_port = self.heartbeat.port | |
281 | self.log.debug("Heartbeat REP Channel on port: %i"%self.hb_port) |
|
282 | self.log.debug("Heartbeat REP Channel on port: %i"%self.hb_port) | |
282 | self.heartbeat.start() |
|
283 | self.heartbeat.start() | |
283 |
|
284 | |||
284 | # Helper to make it easier to connect to an existing kernel. |
|
285 | # Helper to make it easier to connect to an existing kernel. | |
285 | # set log-level to critical, to make sure it is output |
|
286 | # set log-level to critical, to make sure it is output | |
286 | self.log.critical("To connect another client to this kernel, use:") |
|
287 | self.log.critical("To connect another client to this kernel, use:") | |
287 |
|
288 | |||
288 | def log_connection_info(self): |
|
289 | def log_connection_info(self): | |
289 | """display connection info, and store ports""" |
|
290 | """display connection info, and store ports""" | |
290 | basename = os.path.basename(self.connection_file) |
|
291 | basename = os.path.basename(self.connection_file) | |
291 | if basename == self.connection_file or \ |
|
292 | if basename == self.connection_file or \ | |
292 | os.path.dirname(self.connection_file) == self.profile_dir.security_dir: |
|
293 | os.path.dirname(self.connection_file) == self.profile_dir.security_dir: | |
293 | # use shortname |
|
294 | # use shortname | |
294 | tail = basename |
|
295 | tail = basename | |
295 | if self.profile != 'default': |
|
296 | if self.profile != 'default': | |
296 | tail += " --profile %s" % self.profile |
|
297 | tail += " --profile %s" % self.profile | |
297 | else: |
|
298 | else: | |
298 | tail = self.connection_file |
|
299 | tail = self.connection_file | |
299 | self.log.critical("--existing %s", tail) |
|
300 | self.log.critical("--existing %s", tail) | |
300 |
|
301 | |||
301 |
|
302 | |||
302 | self.ports = dict(shell=self.shell_port, iopub=self.iopub_port, |
|
303 | self.ports = dict(shell=self.shell_port, iopub=self.iopub_port, | |
303 | stdin=self.stdin_port, hb=self.hb_port) |
|
304 | stdin=self.stdin_port, hb=self.hb_port) | |
304 |
|
305 | |||
305 | def init_session(self): |
|
306 | def init_session(self): | |
306 | """create our session object""" |
|
307 | """create our session object""" | |
307 | default_secure(self.config) |
|
308 | default_secure(self.config) | |
308 | self.session = Session(config=self.config, username=u'kernel') |
|
309 | self.session = Session(config=self.config, username=u'kernel') | |
309 |
|
310 | |||
310 | def init_blackhole(self): |
|
311 | def init_blackhole(self): | |
311 | """redirects stdout/stderr to devnull if necessary""" |
|
312 | """redirects stdout/stderr to devnull if necessary""" | |
312 | if self.no_stdout or self.no_stderr: |
|
313 | if self.no_stdout or self.no_stderr: | |
313 | blackhole = open(os.devnull, 'w') |
|
314 | blackhole = open(os.devnull, 'w') | |
314 | if self.no_stdout: |
|
315 | if self.no_stdout: | |
315 | sys.stdout = sys.__stdout__ = blackhole |
|
316 | sys.stdout = sys.__stdout__ = blackhole | |
316 | if self.no_stderr: |
|
317 | if self.no_stderr: | |
317 | sys.stderr = sys.__stderr__ = blackhole |
|
318 | sys.stderr = sys.__stderr__ = blackhole | |
318 |
|
319 | |||
319 | def init_io(self): |
|
320 | def init_io(self): | |
320 | """Redirect input streams and set a display hook.""" |
|
321 | """Redirect input streams and set a display hook.""" | |
321 | if self.outstream_class: |
|
322 | if self.outstream_class: | |
322 | outstream_factory = import_item(str(self.outstream_class)) |
|
323 | outstream_factory = import_item(str(self.outstream_class)) | |
323 | sys.stdout = outstream_factory(self.session, self.iopub_socket, u'stdout') |
|
324 | sys.stdout = outstream_factory(self.session, self.iopub_socket, u'stdout') | |
324 | sys.stderr = outstream_factory(self.session, self.iopub_socket, u'stderr') |
|
325 | sys.stderr = outstream_factory(self.session, self.iopub_socket, u'stderr') | |
325 | if self.displayhook_class: |
|
326 | if self.displayhook_class: | |
326 | displayhook_factory = import_item(str(self.displayhook_class)) |
|
327 | displayhook_factory = import_item(str(self.displayhook_class)) | |
327 | sys.displayhook = displayhook_factory(self.session, self.iopub_socket) |
|
328 | sys.displayhook = displayhook_factory(self.session, self.iopub_socket) | |
328 |
|
329 | |||
329 | def init_signal(self): |
|
330 | def init_signal(self): | |
330 | signal.signal(signal.SIGINT, signal.SIG_IGN) |
|
331 | signal.signal(signal.SIGINT, signal.SIG_IGN) | |
331 |
|
332 | |||
332 | def init_kernel(self): |
|
333 | def init_kernel(self): | |
333 | """Create the Kernel object itself""" |
|
334 | """Create the Kernel object itself""" | |
334 | kernel_factory = import_item(str(self.kernel_class)) |
|
335 | kernel_factory = import_item(str(self.kernel_class)) | |
335 | self.kernel = kernel_factory(config=self.config, session=self.session, |
|
336 | self.kernel = kernel_factory(config=self.config, session=self.session, | |
336 | shell_socket=self.shell_socket, |
|
337 | shell_socket=self.shell_socket, | |
337 | iopub_socket=self.iopub_socket, |
|
338 | iopub_socket=self.iopub_socket, | |
338 | stdin_socket=self.stdin_socket, |
|
339 | stdin_socket=self.stdin_socket, | |
339 | log=self.log |
|
340 | log=self.log | |
340 | ) |
|
341 | ) | |
341 | self.kernel.record_ports(self.ports) |
|
342 | self.kernel.record_ports(self.ports) | |
342 |
|
343 | |||
343 | @catch_config_error |
|
344 | @catch_config_error | |
344 | def initialize(self, argv=None): |
|
345 | def initialize(self, argv=None): | |
345 | super(KernelApp, self).initialize(argv) |
|
346 | super(KernelApp, self).initialize(argv) | |
346 | self.init_blackhole() |
|
347 | self.init_blackhole() | |
347 | self.init_connection_file() |
|
348 | self.init_connection_file() | |
348 | self.init_session() |
|
349 | self.init_session() | |
349 | self.init_poller() |
|
350 | self.init_poller() | |
350 | self.init_sockets() |
|
351 | self.init_sockets() | |
351 | self.init_heartbeat() |
|
352 | self.init_heartbeat() | |
352 | # writing/displaying connection info must be *after* init_sockets/heartbeat |
|
353 | # writing/displaying connection info must be *after* init_sockets/heartbeat | |
353 | self.log_connection_info() |
|
354 | self.log_connection_info() | |
354 | self.write_connection_file() |
|
355 | self.write_connection_file() | |
355 | self.init_io() |
|
356 | self.init_io() | |
356 | self.init_signal() |
|
357 | self.init_signal() | |
357 | self.init_kernel() |
|
358 | self.init_kernel() | |
358 | # flush stdout/stderr, so that anything written to these streams during |
|
359 | # flush stdout/stderr, so that anything written to these streams during | |
359 | # initialization do not get associated with the first execution request |
|
360 | # initialization do not get associated with the first execution request | |
360 | sys.stdout.flush() |
|
361 | sys.stdout.flush() | |
361 | sys.stderr.flush() |
|
362 | sys.stderr.flush() | |
362 |
|
363 | |||
363 | def start(self): |
|
364 | def start(self): | |
364 | if self.poller is not None: |
|
365 | if self.poller is not None: | |
365 | self.poller.start() |
|
366 | self.poller.start() | |
366 | self.kernel.start() |
|
367 | self.kernel.start() | |
367 | try: |
|
368 | try: | |
368 | ioloop.IOLoop.instance().start() |
|
369 | ioloop.IOLoop.instance().start() | |
369 | except KeyboardInterrupt: |
|
370 | except KeyboardInterrupt: | |
370 | pass |
|
371 | pass | |
371 |
|
372 |
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