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| author | schmidt <douglascraigschmidt@users.noreply.github.com> | 1997-06-21 17:34:12 +0000 |
|---|---|---|
| committer | schmidt <douglascraigschmidt@users.noreply.github.com> | 1997-06-21 17:34:12 +0000 |
| commit | d6d266b2f42bdc2ef1ddfaca63964232237fbe35 (patch) | |
| tree | 7ee50866e301f7bdca0c4df3ddfd22a898e5d6a0 /ace/Handle_Set.cpp | |
| parent | efb6d8efd41ff7464360910602e74d013151c727 (diff) | |
| download | ATCD-d6d266b2f42bdc2ef1ddfaca63964232237fbe35.tar.gz | |
*** empty log message ***
Diffstat (limited to 'ace/Handle_Set.cpp')
| -rw-r--r-- | ace/Handle_Set.cpp | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/ace/Handle_Set.cpp b/ace/Handle_Set.cpp index b09333d144e..e146368ca07 100644 --- a/ace/Handle_Set.cpp +++ b/ace/Handle_Set.cpp @@ -78,6 +78,28 @@ ACE_Handle_Set::ACE_Handle_Set (const ACE_FD_SET_TYPE &fd_mask) // Counts the number of bits enabled in N. Uses a table lookup to // speed up the count. +#if 0 +// If there are platforms where fd_mask isn't typedef'd to "int" we'll +// have to use the following code. OS_FDMASK_TYPE is set in the +// config*.h file to match whatever the OS has decided it should be. +// For the Alpha, that is "int", for Linux it is "u_long." + +int +ACE_Handle_Set::count_bits (OS_FDMASK_TYPE n) const +{ + ACE_TRACE ("ACE_Handle_Set::count_bits"); + int rval = 0; + + for (int i = 0; i < sizeof (u_long); ++i) + { + rval += ACE_Handle_Set::nbits_[n & 0xff]; + n >>= 8; + } + + return rval; +} +#endif /* 0 */ + int ACE_Handle_Set::count_bits (u_long n) const { @@ -85,7 +107,7 @@ ACE_Handle_Set::count_bits (u_long n) const return (ACE_Handle_Set::nbits_[n & 0xff] + ACE_Handle_Set::nbits_[(n >> 8) & 0xff] + ACE_Handle_Set::nbits_[(n >> 16) & 0xff] - + ACE_Handle_Set::nbits_[n >> 24]); + + ACE_Handle_Set::nbits_[(n >> 24) & 0xff]); } // Synchronize the underlying FD_SET with the MAX_FD and the SIZE. |