[Bug 54653] New: urlmon:protocol sometimes fails because of E_PENDING in Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54653

Bug ID: 54653
           Summary: urlmon:protocol sometimes fails because of E_PENDING
                    in Wine
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: urlmon
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

urlmon:protocol sometimes fails because of E_PENDING in Wine:

protocol.c:3576: Testing http protocol (direct read)...
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1085: Test failed: grfBSCF = 00000001
protocol.c:1093: Test failed: Read returned: 8000000a, expected E_FALSE
protocol.c:1094: Test failed: read = 4022
protocol.c:693: Test failed: expected ReportData
protocol.c:732: Test failed: unexpected call Switch
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1085: Test failed: grfBSCF = 00000002
protocol.c:1093: Test failed: Read returned: 8000000a, expected E_FALSE
protocol.c:1094: Test failed: read = 5792
protocol.c:693: Test failed: expected ReportData
protocol.c:732: Test failed: unexpected call Switch
[... many repeats of the ReportData2 -> Switch lines...]
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1085: Test failed: grfBSCF = 00000002
protocol.c:1041: Test failed: grcfBSCF = 00000006
protocol.c:1076: Test failed: unexpected ReportData2
protocol.c:1188: Test failed: unexpected call ReportResult
protocol.c:1093: Test failed: Read returned: 00000000, expected E_FALSE
protocol.c:1094: Test failed: read = 1323
protocol.c:3580: Testing http protocol (redirected)...

[...]
protocol.c:4320: Testing http binding (mime verification, emulate prot, short
read, direct read)...
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1092: Test failed: expected Read2
protocol.c:1094: Test failed: read = 100
protocol.c:4155: Test failed: expected ReportData
protocol.c:4322: Testing http binding (mime verification, redirect, emulate
prot)...

[...]
protocol.c:4332: Testing http binding (mime verification, emulate prot, direct
read)...
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1085: Test failed: grfBSCF = 00000001
protocol.c:2130: Test failed: unexpected call Read
protocol.c:1092: Test failed: expected Read2
protocol.c:1093: Test failed: Read returned: 8000000a, expected E_FALSE
protocol.c:1094: Test failed: read = 300
protocol.c:1083: Test failed: unexpected call ReportData2
protocol.c:1085: Test failed: grfBSCF = 00000002
protocol.c:2130: Test failed: unexpected call Read
protocol.c:1092: Test failed: expected Read2
protocol.c:1093: Test failed: Read returned: 00000000, expected E_FALSE
protocol.c:1094: Test failed: read = 100
protocol.c:4155: Test failed: expected ReportData
protocol.c:4334: Testing http binding (mime verification, emulate prot,
abort)...

See https://test.winehq.org/data/patterns.html#urlmon:protocol

Where:
  8000000a == E_PENDING
  00000001 == BSCF_FIRSTDATANOTIFICATION
  00000002 == BSCF_INTERMEDIATEDATANOTIFICATION
  00000006 == BSCF_INTERMEDIATEDATANOTIFICATION | BSCF_LASTDATANOTIFICATION

Race condition?