[Mono-dev] Fixing KeventWatcher: dealing with 32 / 64 bit operating systems

[Romain Tartière]

On Sat, Sep 19, 2009 at 11:46:06AM +0200, Robert Jordan wrote:
> For *BSD, timespec is declared like this in native code:
> 
> struct timespec {
> 	time_t  tv_sec;         /* seconds */
> 	long    tv_nsec;        /* and nanoseconds */
> };
> 
> while "time_t" is an "int32_t" on 32-bit and "int64_t" on 64-bit.
> Long is "int32_t" on 32-bit and "int64_t" on 64-bit, so we can
> use IntPtr in the C# p/invoke declaration:
> 
> struct timespec {
> 	public IntPtr tv_sec;
> 	public IntPtr tv_usec;
> }

Yes, I am examinating this.  I am just unsure about how ugly /
acceptable it is to:

  - Replace "ev.data = 0" with "ev.data = IntPtr.Zero";
  - Replace "ev.ident = fd" with "ev.ident = (IntPtr)fd".

Another related point, the requests Hashtable keys are (depending of the
instruction that use them) use with int (4 bytes, plateform agnostic) or
long.  Is it okay to "requests [(IntPtr)fd] = data" ?

Thanks!
Romain

-- 
Romain Tartière <romain at blogreen.org>        http://romain.blogreen.org/
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