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import py
from rpython.translator import cdir
from rpython.translator.tool.cbuild import ExternalCompilationInfo
from rpython.rtyper.lltypesystem import lltype, llmemory, rffi
# these functions manipulate directly the GIL, whose definition does not
# escape the C code itself
translator_c_dir = py.path.local(cdir)
eci = ExternalCompilationInfo(
includes = ['src/thread.h'],
separate_module_files = [translator_c_dir / 'src' / 'thread.c'],
include_dirs = [translator_c_dir],
export_symbols = ['RPyGilAllocate', 'RPyGilYieldThread', 'RPyGilRelease',
'RPyGilAcquire', 'RPyFetchFastGil'])
llexternal = rffi.llexternal
gil_allocate = llexternal('RPyGilAllocate', [], lltype.Void,
_nowrapper=True, sandboxsafe=True,
compilation_info=eci)
gil_yield_thread = llexternal('RPyGilYieldThread', [], lltype.Signed,
_nowrapper=True, sandboxsafe=True,
compilation_info=eci)
gil_release = llexternal('RPyGilRelease', [], lltype.Void,
_nowrapper=True, sandboxsafe=True,
compilation_info=eci)
gil_acquire = llexternal('RPyGilAcquire', [], lltype.Void,
_nowrapper=True, sandboxsafe=True,
compilation_info=eci)
gil_fetch_fastgil = llexternal('RPyFetchFastGil', [], llmemory.Address,
_nowrapper=True, sandboxsafe=True,
compilation_info=eci)
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