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target: Check that the connection works cleanly upon connection

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Check that executing the most basic command works without troubles or stderr
content. If that's not the case, raise a TargetStableError.
This commit is contained in:
Douglas RAILLARD
2020-01-17 17:47:24 +00:00
committed by Marc Bonnici
parent 62e24c5764
commit 7e682ed97d
1 changed files with 9 additions and 0 deletions
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9
devlib/target.py
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@@ -292,6 +292,7 @@ class Target(object):
self.conn = self.get_connection(timeout=timeout)
if check_boot_completed:
self.wait_boot_complete(timeout)
self.check_connection()
self._resolve_paths()
self.execute('mkdir -p {}'.format(quote(self.working_directory)))
self.execute('mkdir -p {}'.format(quote(self.executables_directory)))
@@ -301,6 +302,14 @@ class Target(object):
if self.platform.big_core and self.load_default_modules:
self._install_module(get_module('bl'))
def check_connection(self):
"""
Check that the connection works without obvious issues.
"""
out = self.execute('true', as_root=False)
if out.strip():
raise TargetStableError('The shell seems to not be functional and adds content to stderr: {}'.format(out))
def disconnect(self):
connections = self._conn.get_all_values()
for conn in connections: