Fix bug in the test of file descriptor of current WAL file in pg_receivexlog.
In pg_receivexlog, in order to check whether the current WAL file is being opened or not, its file descriptor has to be checked against -1 as an invalid value. But, oops, 7900e94 added the incorrect test checking the descriptor against 1. This commit fixes that bug. Back-patch to 9.4 where the bug was added. Spotted by Magnus Hagander
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@ -1021,7 +1021,7 @@ ProcessKeepaliveMsg(PGconn *conn, char *copybuf, int len,
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if (replyRequested && still_sending)
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if (replyRequested && still_sending)
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{
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{
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if (reportFlushPosition && lastFlushPosition < blockpos &&
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if (reportFlushPosition && lastFlushPosition < blockpos &&
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walfile != 1)
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walfile != -1)
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{
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{
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/*
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/*
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* If a valid flush location needs to be reported,
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* If a valid flush location needs to be reported,
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