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Windows: Supporting Serial Port #1838

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Windows: Supporting Serial Port #1838

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4d43275
Update README
TheGoesen May 17, 2022
056784d
allow to force WriteFile if needed
TheGoesen May 17, 2022
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2 changes: 2 additions & 0 deletions ACE/ace/README
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,8 @@ ACE_TLI_TCP_DEVICE Device the platform uses for TCP on
TLI. Only needed if not /dev/tcp.
ACE_USE_POLL The OS platform supports the
poll() event demultiplexor
ACE_USE_WIN32_WRITE_FILE Uses WriteFile instead of WSASend. This works for
serial Ports (COM1...)
ACE_USES_ASM_SYMBOL_IN_DLSYM Platform uses assembly symbols
instead of C symbols in
dlsym()
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2 changes: 1 addition & 1 deletion ACE/ace/WIN32_Asynch_IO.cpp
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Expand Up @@ -853,7 +853,7 @@ ACE_WIN32_Asynch_Write_Stream::write (ACE_Message_Block &message_block,
// Initiate the write; Winsock 2 is required for the higher-performing
// WSASend() function. For Winsock 1, fall back to the slower WriteFile().
int initiate_result = 0;
#if (defined (ACE_HAS_WINSOCK2) && (ACE_HAS_WINSOCK2 != 0))
#if (defined (ACE_HAS_WINSOCK2) && (ACE_HAS_WINSOCK2 != 0) && !(defined(ACE_USE_WIN32_WRITE_FILE))
WSABUF iov;
iov.buf = result->message_block ().rd_ptr ();
iov.len = static_cast<DWORD> (bytes_to_write);
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