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Add macOS specific flags around file preallocation #30

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Merged
hsbt merged 1 commit into from
Sep 10, 2025
Merged

Add macOS specific flags around file preallocation #30

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46 changes: 46 additions & 0 deletions ext/fcntl/fcntl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -251,4 +251,50 @@ Init_fcntl(void)
*/
rb_define_const(mFcntl, "F_DUP2FD_CLOEXEC", INT2NUM(F_DUP2FD_CLOEXEC));
#endif

#ifdef F_PREALLOCATE
/*
* macOS specific flag used for preallocating file space.
*/
rb_define_const(mFcntl, "F_PREALLOCATE", INT2NUM(F_PREALLOCATE));
#endif

#ifdef F_ALLOCATECONTIG
/*
* macOS specific flag used with F_PREALLOCATE for allocating contiguous
* space.
*/
rb_define_const(mFcntl, "F_ALLOCATECONTIG", INT2NUM(F_ALLOCATECONTIG));
#endif

#ifdef F_ALLOCATEALL
/*
* macOS specific flag used with F_PREALLOCATE for allocating all contiguous
* space or no space.
*/
rb_define_const(mFcntl, "F_ALLOCATEALL", INT2NUM(F_ALLOCATEALL));
#endif

#ifdef F_ALLOCATEPERSIST
/*
* macOS specific flag used with F_PREALLOCATE. Allocate space that is not
* freed when close is called.
*/
rb_define_const(mFcntl, "F_ALLOCATEPERSIST", INT2NUM(F_ALLOCATEPERSIST));
#endif

#ifdef F_PEOFPOSMODE
/*
* macOS specific flag used with F_PREALLOCATE. Allocate from the physical
* end of file
*/
rb_define_const(mFcntl, "F_PEOFPOSMODE", INT2NUM(F_PEOFPOSMODE));
#endif

#ifdef F_VOLPOSMODE
/*
* macOS specific flag used with F_PREALLOCATE. Allocate from the volume offset.
*/
rb_define_const(mFcntl, "F_VOLPOSMODE", INT2NUM(F_VOLPOSMODE));
#endif
}