Not too long ago, someone asked about compiling 0MQ on Windows X64. With the
help of my colleague, Brett Cameron, I have a working version compiled using
VS2010 and running on Windows 7 X64.
Only one minor change was required in atomic_ptr.hpp:
#if defined ZMQ_ATOMIC_PTR_WINDOWS
// return (T*) InterlockedExchangePointer (&ptr, val_);
return (T*) InterlockedExchangePointer ((PVOID *) &ptr, val_);
The change is a quick solution and is not, in my mind, what really should be
done. There are a number of preprocessor statements which equate X86 with X64,
thus leading to the use of 32-bit pointers and data types. These should be
changed to differentiate between the two machine types.
Does it work? Yes. Is it faster? Do not know yet, hope to do some testing in
the near future as time permits.
----------------------------------------------------
Dumps of the respective programs, LOCAL_LAT in this case, show the X86 and X64
images. See below.
Dump of file \\bigwinnie\bigwinniec$\amqp\zeromq-2.0.6\bin\local_lat.exe
PE signature found
File Type: EXECUTABLE IMAGE
FILE HEADER VALUES
14C machine (x86)
7 number of sections
4BAB295D time date stamp Thu Mar 25 10:14:05 2010
0 file pointer to symbol table
0 number of symbols
E0 size of optional header
102 characteristics
Executable
32 bit word machine
----------------------------------------------------
Dump of file C:\amqp\zeromq-2.0.6\bin\local_lat.exe
PE signature found
File Type: EXECUTABLE IMAGE
FILE HEADER VALUES
8664 machine (x64)
7 number of sections
4BC5D8E8 time date stamp Wed Apr 14 17:02:00 2010
0 file pointer to symbol table
0 number of symbols
F0 size of optional header
22 characteristics
Executable
Application can handle large (>2GB) addresses
----------------------------------------------------
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