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Windows apparently sends ERROR_BROKEN_PIPE when a pipe we're reading

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from is closed normally from the writing end. This is ludicrous; if
that situation isn't a natural EOF, _nothing_ is. So if we get that
particular error, we pretend it's EOF.

[originally from svn r7415]
This commit is contained in:
Simon Tatham 2007-03-27 18:49:59 +00:00
parent 7e4eb1f404
commit 702a92ceb8
1 changed files with 14 additions and 2 deletions
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16
windows/winhandl.c
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@ -134,13 +134,25 @@ static DWORD WINAPI handle_input_threadfunc(void *param)
} }
ctx->readret = ReadFile(ctx->h, ctx->buffer, readlen, ctx->readret = ReadFile(ctx->h, ctx->buffer, readlen,
&ctx->len, povl); &ctx->len, povl);
if (povl && !ctx->readret && GetLastError() == ERROR_IO_PENDING) { if (!ctx->readret)
error = GetLastError();
if (povl && !ctx->readret && error == ERROR_IO_PENDING) {
WaitForSingleObject(povl->hEvent, INFINITE); WaitForSingleObject(povl->hEvent, INFINITE);
ctx->readret = GetOverlappedResult(ctx->h, povl, &ctx->len, FALSE); ctx->readret = GetOverlappedResult(ctx->h, povl, &ctx->len, FALSE);
} }
if (!ctx->readret) if (!ctx->readret) {
/*
* Windows apparently sends ERROR_BROKEN_PIPE when a
* pipe we're reading from is closed normally from the
* writing end. This is ludicrous; if that situation
* isn't a natural EOF, _nothing_ is. So if we get that
* particular error, we pretend it's EOF.
*/
if (error == ERROR_BROKEN_PIPE)
ctx->readret = 1;
ctx->len = 0; ctx->len = 0;
}
if (ctx->readret && ctx->len == 0 && if (ctx->readret && ctx->len == 0 &&
(ctx->flags & HANDLE_FLAG_IGNOREEOF)) (ctx->flags & HANDLE_FLAG_IGNOREEOF))