diff options
| author | Rich Felker <dalias@aerifal.cx> | 2011-04-18 20:50:37 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-04-18 20:50:37 -0400 |
| commit | be2e06d347fdb83e9c4f57e57fa29b78f6276a0c (patch) | |
| tree | 50a11b3a75d17a6c2da781804c0a03165899ee3d /src | |
| parent | 61b56a8d2151a60ec67a459a9d325b29c5dc3b41 (diff) | |
| download | musl-be2e06d347fdb83e9c4f57e57fa29b78f6276a0c.tar.gz | |
recheck cancellation disabled flag after syscall returns EINTR
we already checked before making the syscall, but it's possible that a
signal handler interrupted the blocking syscall and disabled
cancellation, and that this is the cause of EINTR. in this case, the
old behavior was testably wrong.
Diffstat (limited to 'src')
| -rw-r--r-- | src/thread/cancel_impl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/cancel_impl.c b/src/thread/cancel_impl.c index 1f4ff90c..0d80885f 100644 --- a/src/thread/cancel_impl.c +++ b/src/thread/cancel_impl.c @@ -27,7 +27,7 @@ long (__syscall_cp)(long nr, long u, long v, long w, long x, long y, long z) r = __syscall_cp_asm(&self->cp_sp, nr, u, v, w, x, y, z); self->cp_ip = old_ip; self->cp_sp = old_sp; - if (r == -EINTR && self->cancel) __cancel(); + if (r == -EINTR && self->cancel && !self->canceldisable) __cancel(); return r; } |