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merge(3p/git): Merge git subtree at v2.29.2

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This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
This commit is contained in:
Vincent Ambo 2020-11-21 19:20:35 +01:00
parent 082c006c04
commit f4609b896f
1485 changed files with 241535 additions and 109418 deletions
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31
third_party/git/compat/poll/poll.c vendored
View file

@ -139,22 +139,10 @@ win32_compute_revents (HANDLE h, int *p_sought)
INPUT_RECORD *irbuffer;
DWORD avail, nbuffer;
BOOL bRet;
IO_STATUS_BLOCK iosb;
FILE_PIPE_LOCAL_INFORMATION fpli;
static PNtQueryInformationFile NtQueryInformationFile;
static BOOL once_only;
switch (GetFileType (h))
{
case FILE_TYPE_PIPE:
if (!once_only)
{
NtQueryInformationFile = (PNtQueryInformationFile)(void (*)(void))
GetProcAddress (GetModuleHandleW (L"ntdll.dll"),
"NtQueryInformationFile");
once_only = TRUE;
}
happened = 0;
if (PeekNamedPipe (h, NULL, 0, NULL, &avail, NULL) != 0)
{
@ -166,22 +154,9 @@ win32_compute_revents (HANDLE h, int *p_sought)
else
{
/* It was the write-end of the pipe. Check if it is writable.
If NtQueryInformationFile fails, optimistically assume the pipe is
writable. This could happen on Win9x, where NtQueryInformationFile
is not available, or if we inherit a pipe that doesn't permit
FILE_READ_ATTRIBUTES access on the write end (I think this should
not happen since WinXP SP2; WINE seems fine too). Otherwise,
ensure that enough space is available for atomic writes. */
memset (&iosb, 0, sizeof (iosb));
memset (&fpli, 0, sizeof (fpli));
if (!NtQueryInformationFile
|| NtQueryInformationFile (h, &iosb, &fpli, sizeof (fpli),
FilePipeLocalInformation)
|| fpli.WriteQuotaAvailable >= PIPE_BUF
|| (fpli.OutboundQuota < PIPE_BUF &&
fpli.WriteQuotaAvailable == fpli.OutboundQuota))
/* It was the write-end of the pipe. Unfortunately there is no
reliable way of knowing if it can be written without blocking.
Just say that it's all good. */
happened |= *p_sought & (POLLOUT | POLLWRNORM | POLLWRBAND);
}
return happened;