* libguile/foreign.h:
* libguile/foreign.c: Always define complex-float and complex-double.
Fall back to alignof float / 2*sizeof float if no complex numbers. (But
with C99 surely it exists everywhere.)
* module/system/foreign.scm (*writers*, *readers*): Always include
complex-float and complex-double readers and writers.
* test-suite/tests/foreign.test: Always run the complex tests.
* libguile/foreign.h (SCM_FOREIGN_TYPE_COMPLEX_FLOAT,
SCM_FOREIGN_TYPE_COMPLEX_DOUBLE): New enums.
* module/system/foreign.scm (complex-float, complex-double): Export new types.
(make-c-struct, parse-c-struct): Support the new types.
* libguile/foreign.c (complex-float, complex-double): Define new types.
(alignof, sizeof, pack, unpack): Support the new types.
* test-suite/tests/foreign.test: Test.
When using automake and libtool to build DLLs on Cygwin, libtool
will rename libXXX to cygXXX. 'load-foreign-library' should
emulate libltdl behavior and search for DLLs using that convention.
* module/system/foreign-library.scm (lib->cyg): new helper function
(load-foreign-library): add rename-on-cygwin? option to rename
libraries using Cygwin semantics
* test-suite/tests/foreign.test: new test section 'lib->cyg'
* doc/ref/api-foreign.text: document new rename-on-cygwin? option
for load-foreign-library
* NEWS: Update.
* am/bootstrap.am (SOURCES):
* module/Makefile.am (SOURCES): Add system/foreign-library.scm.
* configure.ac: Replace ltdl check with -ldl check.
* libguile/dynl.c: Rewrite to just expose core dlopen / dlsym / etc to a
helper Scheme module.
(scm_dynamic_link, scm_dynamic_pointer, scm_dynamic_function)
(scm_dynamic_object_p, scm_dynamic_call): Rewrite in terms of (system
foreign-library).
* libguile/extensions.c (load_extension): Avoid scm_dynamic_call.
* module/system/foreign-library.scm: New file.
* module/oop/goops.scm (<dynamic-object>): Hackily export
<foreign-library> instead of a class here.
* doc/ref/api-foreign.texi (Foreign Function Interface): Rewrite to only
document the new interfaces. Eventually we will deprecate
dynamic-link and friends.
* doc/ref/guile.texi (API Reference): Move Foreign Objects after Foreign
Function Interface. Seems there should be some closer relationship
but this will do for now.
* doc/ref/tour.texi (Putting Extensions into Modules):
* doc/ref/libguile-parallel.texi (Parallel Installations): Update for
rename of Modules and Extensions to Foreign Extensions.
* libguile/deprecated.h:
* libguile/deprecated.c (scm_dynamic_unlink): Deprecate.
* libguile/guile.c: Remove ltdl include.
* test-suite/tests/foreign.test: Update tests to use new API, and update
error expectations.
* doc/ref/api-foreign.text (dynamic-link): document problems with recursive DLLs.
* test-suite/standalone/test-ffi (global): with Cygwin, dynamic-link C library explicitly
* test-suite/standalone/test-foreign-object-scm (libc-ptr): with Cygwin, link C library explicitly
* test-suite/tests/foreign.test (qsort): with Cygwin, link C library explicitly
* libguile/foreign.c: Convert to using RTL stubs. Because RTL code has
different GC characteristics than objcode -- it's mostly assumed that
RTL code will never go away -- we go ahead and pre-generate code for
100 arguments. This is actually less memory than the stack VM code,
and doesn't require any relocations at load-time: bonus! We'll cross
the >=100 args bridge if we ever come to it.
(get_foreign_stub_code) New function.
(scm_i_foreign_arity): New helper, like scm_i_primitive_arity.
(cif_to_procedure): Rework to make RTL programs.
* libguile/foreign.h: Declare scm_pointer_to_scm and
scm_scm_to_pointer. Declare new internal helpers.
* libguile/gsubr.c (create_subr): Refactor to set the flags when the
object is allocated.
* libguile/instructions.h: Define SCM_PACK_RTL_12_12.
* libguile/programs.c (scm_i_rtl_program_minimum_arity): Dispatch to
scm_i_foreign_arity if the procedure has the FOREIGN flag.
* libguile/programs.h (SCM_F_PROGRAM_IS_FOREIGN)
(SCM_PROGRAM_IS_FOREIGN): New interfaces.
* test-suite/tests/foreign.test ("procedure->pointer"): Add a test for
foreign arities.
* test-suite/tests/foreign.test ("procedure->pointer")[qsort]: Wrap in
`false-if-exception'.
["qsort", "qsort, wrong return type", "qsort, wrong arity"]: Throw
'unresolved when QSORT if #f.
Reported by Eli Zaretskii <eliz@gnu.org>.
* test-suite/tests/foreign.test ("make-pointer")["equal? modulo
finalizer", "equal? modulo finalizer (set-pointer-finalizer!)"]: Skip
when `scm_is_pair' cannot be found, as is the case on Cygwin.
Reported by "objc" <objcjohn@hotmail.com>.
* test-suite/tests/foreign.test ("pointer<->string")["%default-port-conversion-strategy
is soft"]: Split into the following tests.
["%default-port-conversion-strategy is escape",
"%default-port-conversion-strategy is substitute"]: New tests. In the
latter, add the escape form returned on FreeBSD 8.2 and Darwin 10.8.0.
Fixes <http://bugs.gnu.org/11468>.
* libguile/ports.c (scm_conversion_strategy): Remove.
(default_conversion_strategy_var, sym_error, sym_substitute,
sym_escape): New variables.
(scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x):
Remove.
(scm_i_default_port_conversion_handler,
scm_i_set_default_port_conversion_handler): New functions.
(scm_port_conversion_strategy): Use
`scm_i_default_port_conversion_handler' when PORT is #f.
(scm_set_port_conversion_strategy_x): Use SYM_ERROR, SYM_SUBSTITUTE,
and SYM_ESCAPE. Use `scm_i_set_default_port_conversion_handler' when
PORT is #f.
(scm_init_ports): Initialize DEFAULT_CONVERSION_STRATEGY_VAR.
* libguile/ports.h: Update declarations accordingly.
* libguile/foreign.c: Change
`scm_i_get_conversion_strategy (SCM_BOOL_F)' to
`scm_i_default_port_conversion_handler ()'.
* libguile/strings.c: Likewise.
* test-suite/tests/ports.test ("%default-port-conversion-strategy"): New
test prefix.
* test-suite/tests/foreign.test ("pointer<->string")["%default-port-conversion-strategy
is error", "%default-port-conversion-strategy is soft"]: New tests.
* test-suite/test-suite/lib.scm (exception:encoding-error): Allow the
regexp to match `scm_to_stringn' error messages.
* doc/ref/api-io.texi (Ports): Document `%default-port-conversion-strategy'.
* libguile/foreign.c (scm_sizeof): Make sure the overall size is a
multiple of the alignment of the structure.
* test-suite/tests/foreign.test: Test size of { double, int8 }.
This is a followup to 690a0112e5 ("Remove
the "has finalizer?" bit from pointer objects.")
* libguile/foreign.c (scm_set_pointer_finalizer_x): Leave the type cell
unchanged. Before, `equal?' would break on pointers on which
`set-pointer-finalizer!' had been called.
* test-suite/tests/foreign.test ("make-pointer")["equal? modulo
finalizer (set-pointer-finalizer!)"]: New test.
* libguile/foreign.c (scm_procedure_to_pointer): Keep a weak reference
to PROC.
* test-suite/tests/foreign.test ("procedure->pointer")["procedure is
retained"]: New test.
* test-suite/tests/foreign.test ("pointer<->string"): Add test cases.
* libguile/foreign.c (scm_string_to_pointer, scm_pointer_to_string): Add
optional encoding, and in the pointer->string case, length arguments.
* libguile/foreign.h: Update prototypes of internal functions.
Shouldn't affect ABI as they are internal.
* doc/ref/api-foreign.texi (Void Pointers and Byte Access): Update
docs.
* libguile/dynl.c (sysdep_dynl_value): Failure to find a symbol is not
an error, so raise our own, more appropriate error.
* test-suite/tests/foreign.test ("dynamic-pointer"): Add a test.
* libguile/foreign.c (scm_pointer_to_scm, scm_scm_to_pointer): New
functions, useful to pass and receive SCM values to and from foreign
functions.
* module/system/foreign.scm: Export the new functions.
* doc/ref/api-foreign.texi (Foreign Variables): Add docs.
* test-suite/tests/foreign.test ("pointer<->scm"): Tests.
* libguile/foreign.c (unpack): Make sure X is a pointer before using
`SCM_POINTER_VALUE'.
* test-suite/tests/foreign.test ("pointer->procedure"): New test prefix.
* libguile/foreign.c (make_cif): New procedure, with code formerly in
`scm_make_foreign_function'.
(scm_make_foreign_function): Use it.
(invoke_closure, scm_procedure_to_pointer)[FFI_CLOSURES]: New
functions.
* libguile/foreign.h (scm_procedure_to_pointer): New declaration.
* module/system/foreign.scm: Export `procedure->pointer' when available.
* test-suite/standalone/test-ffi (f-callback-1, f-callback-2): New
procedures and related tests.
* test-suite/standalone/test-ffi-lib.c (test_ffi_callback_1,
test_ffi_callback_2): New functions.
* test-suite/tests/foreign.test ("procedure->pointer"): New test prefix.
* doc/ref/api-foreign.texi (Dynamic FFI): Document `procedure->pointer'.
* libguile/foreign.c (scm_string_to_pointer, scm_pointer_to_string): New
functions.
* libguile/foreign.h (scm_string_to_pointer, scm_pointer_to_string): New
declarations.
* module/system/foreign.scm: Export `string->pointer' and
`pointer->string'.
* test-suite/tests/foreign.test ("pointer<->string"): New test prefix.
* doc/ref/api-foreign.texi (Void Pointers and Byte Access): Add
`string->pointer' and `pointer->string'.
* module/system/foreign.scm (parse-c-struct): Update use of
`pointer->bytevector' to the new API.
* test-suite/tests/foreign.test ("structs"): New test prefix.
* libguile/foreign.c (sym_null_pointer_error): New variable.
(null_pointer_error): New function.
(scm_foreign_set_x): Raise an error if attempting to modify
NULL_POINTER.
(scm_foreign_to_bytevector): Use `null_pointer_error ()' instead of
`scm_misc_error ()'.
* test-suite/tests/foreign.test: New file.
* test-suite/Makefile.am (SCM_TESTS): Add tests/foreign.test.
* test-suite/lib.scm (exception:null-pointer-error): New variable.
