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Batuhan Osman TASKAYA
cpython
Commits
185fd33a
Kaydet (Commit)
185fd33a
authored
Nis 01, 2015
tarafından
Victor Stinner
Dosyalara gözat
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Sade Fark
Issue #23836: Use _Py_write_noraise() to retry on EINTR in child_exec() of
_posixsubprocess
üst
e72fe399
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_posixsubprocess.c
Modules/_posixsubprocess.c
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Modules/_posixsubprocess.c
Dosyayı görüntüle @
185fd33a
...
...
@@ -382,7 +382,7 @@ child_exec(char *const exec_array[],
PyObject
*
preexec_fn
,
PyObject
*
preexec_fn_args_tuple
)
{
int
i
,
saved_errno
,
unused
,
reached_preexec
=
0
;
int
i
,
saved_errno
,
reached_preexec
=
0
;
PyObject
*
result
;
const
char
*
err_msg
=
""
;
/* Buffer large enough to hold a hex integer. We can't malloc. */
...
...
@@ -496,28 +496,29 @@ error:
saved_errno
=
errno
;
/* Report the posix error to our parent process. */
/* We ignore all write() return values as the total size of our writes is
* less than PIPEBUF and we cannot do anything about an error anyways. */
less than PIPEBUF and we cannot do anything about an error anyways.
Use _Py_write_noraise() to retry write() if it is interrupted by a
signal (fails with EINTR). */
if
(
saved_errno
)
{
char
*
cur
;
unused
=
writ
e
(
errpipe_write
,
"OSError:"
,
8
);
_Py_write_norais
e
(
errpipe_write
,
"OSError:"
,
8
);
cur
=
hex_errno
+
sizeof
(
hex_errno
);
while
(
saved_errno
!=
0
&&
cur
>
hex_errno
)
{
*--
cur
=
"0123456789ABCDEF"
[
saved_errno
%
16
];
saved_errno
/=
16
;
}
unused
=
writ
e
(
errpipe_write
,
cur
,
hex_errno
+
sizeof
(
hex_errno
)
-
cur
);
unused
=
writ
e
(
errpipe_write
,
":"
,
1
);
_Py_write_norais
e
(
errpipe_write
,
cur
,
hex_errno
+
sizeof
(
hex_errno
)
-
cur
);
_Py_write_norais
e
(
errpipe_write
,
":"
,
1
);
if
(
!
reached_preexec
)
{
/* Indicate to the parent that the error happened before exec(). */
unused
=
writ
e
(
errpipe_write
,
"noexec"
,
6
);
_Py_write_norais
e
(
errpipe_write
,
"noexec"
,
6
);
}
/* We can't call strerror(saved_errno). It is not async signal safe.
* The parent process will look the error message up. */
}
else
{
unused
=
writ
e
(
errpipe_write
,
"SubprocessError:0:"
,
18
);
unused
=
writ
e
(
errpipe_write
,
err_msg
,
strlen
(
err_msg
));
_Py_write_norais
e
(
errpipe_write
,
"SubprocessError:0:"
,
18
);
_Py_write_norais
e
(
errpipe_write
,
err_msg
,
strlen
(
err_msg
));
}
if
(
unused
)
return
;
/* silly? yes! avoids gcc compiler warning. */
}
...
...
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