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author | Chanho Park <chanho61.park@samsung.com> | 2014-12-10 15:42:55 +0900 |
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committer | Chanho Park <chanho61.park@samsung.com> | 2014-12-10 15:42:55 +0900 |
commit | 0d6a2f7e595218b5632ba7005128470e65138951 (patch) | |
tree | 596b09930ef1538e6606450e2d8b88ec2e296a9b /qemu-timer.c | |
parent | 16b1353a36171ae06d63fd309f4772dbfb1da113 (diff) | |
download | qemu-0d6a2f7e595218b5632ba7005128470e65138951.tar.gz qemu-0d6a2f7e595218b5632ba7005128470e65138951.tar.bz2 qemu-0d6a2f7e595218b5632ba7005128470e65138951.zip |
Imported Upstream version 2.2.0upstream/2.2.1upstream/2.2.0
Diffstat (limited to 'qemu-timer.c')
-rw-r--r-- | qemu-timer.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/qemu-timer.c b/qemu-timer.c index 00a5d35c3..c77de6430 100644 --- a/qemu-timer.c +++ b/qemu-timer.c @@ -314,7 +314,14 @@ int qemu_poll_ns(GPollFD *fds, guint nfds, int64_t timeout) return ppoll((struct pollfd *)fds, nfds, NULL, NULL); } else { struct timespec ts; - ts.tv_sec = timeout / 1000000000LL; + int64_t tvsec = timeout / 1000000000LL; + /* Avoid possibly overflowing and specifying a negative number of + * seconds, which would turn a very long timeout into a busy-wait. + */ + if (tvsec > (int64_t)INT32_MAX) { + tvsec = INT32_MAX; + } + ts.tv_sec = tvsec; ts.tv_nsec = timeout % 1000000000LL; return ppoll((struct pollfd *)fds, nfds, &ts, NULL); } |