1.Dd February 15, 2008 2.Dt FFI 3 3.Sh NAME 4.Nm FFI 5.Nd Foreign Function Interface 6.Sh LIBRARY 7libffi, -lffi 8.Sh SYNOPSIS 9.In ffi.h 10.Ft ffi_status 11.Fo ffi_prep_cif 12.Fa "ffi_cif *cif" 13.Fa "ffi_abi abi" 14.Fa "unsigned int nargs" 15.Fa "ffi_type *rtype" 16.Fa "ffi_type **atypes" 17.Fc 18.Ft void 19.Fo ffi_prep_cif_var 20.Fa "ffi_cif *cif" 21.Fa "ffi_abi abi" 22.Fa "unsigned int nfixedargs" 23.Fa "unsigned int ntotalargs" 24.Fa "ffi_type *rtype" 25.Fa "ffi_type **atypes" 26.Fc 27.Ft void 28.Fo ffi_call 29.Fa "ffi_cif *cif" 30.Fa "void (*fn)(void)" 31.Fa "void *rvalue" 32.Fa "void **avalue" 33.Fc 34.Sh DESCRIPTION 35The foreign function interface provides a mechanism by which a function can 36generate a call to another function at runtime without requiring knowledge of 37the called function's interface at compile time. 38.Sh SEE ALSO 39.Xr ffi_prep_cif 3 , 40.Xr ffi_prep_cif_var 3 , 41.Xr ffi_call 3 42