On Sun, 2008-05-11 at 20:59 +0100, Mark Ellis wrote: > On Sun, 2008-05-11 at 17:01 +0200, David Eriksson wrote: > > > > On Sun, 2008-05-11 at 10:55 +0100, Mark Ellis wrote: > > > On Fri, 2008-05-09 at 22:40 +0200, David Eriksson wrote: > > > > > > > > On Tue, 2008-05-06 at 21:50 +0100, Mark Ellis wrote: > > > > > Hi All > > > > > > > > > > General inquiry, does anyone know why CeReadRecordProps and > > > > > CeWriteRecordProps for rapi1 are inside an #if SIZEOF_VOID_P == 4 ? > > > > > > > > > > After a brief browse I can't see anything obvious that would break. I > > > > > also can't see this defined anywhere. > > > > > > > > SIZEOF_VOID_P is defined in rapi_config.h (generated by the configure > > > > script, i.e. AC_CHECK_SIZEOF(void *) in configure.ac.in) > > > > > > > > If this #define is of my making, I think that it is because it is very > > > > important that CEVALUNION.lpwstr is read and written as a 32-bit value > > > > and same for CEVALUNION.blob.lpb > > > > > > > > > > Thanks David, that should give me something to think about for a while. > > > > For the sake of clarity: this would of course only be an issue on > > platforms where a pointer is 64-bit. > > > > > > I was expecting the problem here to be that interesting bit of pointer > arithmetic, but it seems not. > > On 64 bit, CEVALUNION is 16 bytes long, because CEBLOB is 16 bytes. > CEVALUNION over the wire is 8 bytes. I guess the problem is because > CEBLOB is a struct of 2 members, each member gets allocated on 64 bit > boundaries, hence a 16 byte struct, even though they don't need this > much space. > > Compiler quirks aren't my strength, do you know how to force this to the > correct size ? >
Scratch that, it's obviously not a boundary issue, it's because it needs 64 bits for an LPBYTE, this is going to be more fun than I thought..... Mark ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ SynCE-Devel mailing list SynCE-Devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/synce-devel
