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Assert(PqCommReadingMsg) in pq_peekbyte().

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Interrupting pq_recvbuf() can break protocol sync, so its callers all
deserve this assertion.  The one pq_peekbyte() caller suffices already.
This commit is contained in:
Noah Misch 2015-02-06 23:14:27 -05:00
parent ff16b40f8c
commit a7a4adcf8d
1 changed files with 2 additions and 0 deletions
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2
src/backend/libpq/pqcomm.c
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@ -928,6 +928,8 @@ pq_getbyte(void)
int int
pq_peekbyte(void) pq_peekbyte(void)
{ {
Assert(PqCommReadingMsg);
while (PqRecvPointer >= PqRecvLength) while (PqRecvPointer >= PqRecvLength)
{ {
if (pq_recvbuf()) /* If nothing in buffer, then recv some */ if (pq_recvbuf()) /* If nothing in buffer, then recv some */