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root/radiance/ray/src/rt/RdataShareMap.cpp
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Comparing ray/src/rt/RdataShareMap.cpp (file contents):
Revision 2.1 by greg, Tue Oct 29 00:36:54 2024 UTC vs.
Revision 2.2 by greg, Wed Oct 30 01:38:21 2024 UTC

# Line 36 | Line 36 | RdataShareMap::RdataShareMap(const char *name, int fla
36                  error(CONSISTENCY, "bad RDSextend in RdataShareMap()");
37                  return;
38          }
39 <        int     mmprot = PROT_NONE;
40 <        int     oflags = 0;
39 >        int     oflags, mmprot;
40          switch (flags & (RDSread|RDSwrite)) {
41          case RDSread|RDSwrite:
42 <                mmprot |= PROT_READ|PROT_WRITE;
43 <                oflags |= O_RDWR;
42 >                mmprot = PROT_READ|PROT_WRITE;
43 >                oflags = O_RDWR|O_CREAT;
44                  break;
46 –        case RDSread:
47 –                mmprot |= PROT_READ;
48 –                oflags |= O_RDONLY;
49 –                break;
45          case RDSwrite:
46 <                mmprot |= PROT_WRITE;
47 <                oflags |= O_WRONLY;
46 >                mmprot = PROT_WRITE;
47 >                oflags = O_RDWR|O_CREAT;        // XXX system limitation
48                  break;
49 +        case RDSread:
50 +                mmprot = PROT_READ;
51 +                oflags = O_RDONLY;
52 +                break;
53          }
54          int     fd = -1;
55          if (name) {                     // opening a shared file
56 <                if (flags & RDSexcl) oflags |= O_CREAT|O_EXCL;
56 >                if (flags & RDSexcl) oflags |= O_EXCL;
57                  else if (flags & RDSextend && !siz) oflags |= O_TRUNC;
58                  fd = open(name, oflags, 0666);
59                  if (fd < 0) {

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