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adam.huang
htop
Commits
1afbc190
Commit
1afbc190
authored
11 years ago
by
Hisham Muhammad
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safer code, test for return of fcntl
parent
28d4cad5
master
darwin-cpu-average
fixedgray
freebsd
linear-graph-scan
lua
next
perfcounters
pkgconfig-on-linux
solaris
sreclaimable
travis-ci
wip
3.0.0beta5
3.0.0beta4
3.0.0beta3
3.0.0beta2
3.0.0beta1
2.2.0
2.1.0
2.0.2
2.0.1
2.0.0
1.0.3
No related merge requests found
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1
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1 changed file
TraceScreen.c
+5
-3
TraceScreen.c
with
5 additions
and
3 deletions
+5
-3
TraceScreen.c
View file @
1afbc190
...
...
@@ -87,9 +87,11 @@ void TraceScreen_run(TraceScreen* this) {
if
(
child
==
-
1
)
return
;
if
(
child
==
0
)
{
dup2
(
fdpair
[
1
],
STDERR_FILENO
);
fcntl
(
fdpair
[
1
],
F_SETFL
,
O_NONBLOCK
);
sprintf
(
buffer
,
"%d"
,
this
->
process
->
pid
);
execlp
(
"strace"
,
"strace"
,
"-p"
,
buffer
,
NULL
);
int
ok
=
fcntl
(
fdpair
[
1
],
F_SETFL
,
O_NONBLOCK
);
if
(
ok
!=
-
1
)
{
sprintf
(
buffer
,
"%d"
,
this
->
process
->
pid
);
execlp
(
"strace"
,
"strace"
,
"-p"
,
buffer
,
NULL
);
}
const
char
*
message
=
"Could not execute 'strace'. Please make sure it is available in your $PATH."
;
write
(
fdpair
[
1
],
message
,
strlen
(
message
));
exit
(
1
);
...
...
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