diff options
author | Martin Sustrik <sustrik@250bpm.com> | 2012-05-20 08:17:42 +0200 |
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committer | Martin Sustrik <sustrik@250bpm.com> | 2012-05-21 12:17:59 +0200 |
commit | 338a8a0ee13388aceafa3d8b6d8add3b79e95986 (patch) | |
tree | 6bb8fb957c3247e43c536bdd678a61bf59a12a02 /src/surveyor.cpp | |
parent | c4881d317e3ec5b02d1e354fb54a56dc0618b717 (diff) |
Expired survey returns ETIMEDOUT instead of EAGAIN
Up to now, when survey in surveyor pattern expired, xs_recv()
returned EAGAIN. That made it impossible to distinguish
epired survey from expired receive timeout (XS_RCVTIMEO).
This patch make errors different in both cases.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Diffstat (limited to 'src/surveyor.cpp')
-rw-r--r-- | src/surveyor.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/surveyor.cpp b/src/surveyor.cpp index b72b91b..bd19b8a 100644 --- a/src/surveyor.cpp +++ b/src/surveyor.cpp @@ -92,8 +92,16 @@ int xs::surveyor_t::xrecv (msg_t *msg_, int flags_) // Get the first part of the response -- the survey ID. rc = xsurveyor_t::xrecv (msg_, flags_); - if (rc != 0) - return rc; + if (rc != 0) { + if (errno != EAGAIN) + return -1; + + // In case of AGAIN we should check whether the survey timeout expired. + // If so, we should return ETIMEDOUT so that user is able to + // distinguish survey timeout from RCVTIMEO-caused timeout. + errno = now_ms () >= timeout ? ETIMEDOUT : EAGAIN; + return -1; + } // Check whether this is response for the onging survey. If not, we can // drop the response. |