diff options
Diffstat (limited to 'cffi/verifier.py')
| -rw-r--r-- | cffi/verifier.py | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/cffi/verifier.py b/cffi/verifier.py index 0b941d4..9603a7e 100644 --- a/cffi/verifier.py +++ b/cffi/verifier.py @@ -42,18 +42,21 @@ class Verifier(object): def write_source(self, file=None): """Write the C source code. It is produced in 'self.sourcefilename', which can be tweaked beforehand.""" - if self._has_source and file is None: - raise ffiplatform.VerificationError("source code already written") - self._write_source(file) + with self.ffi._lock: + if self._has_source and file is None: + raise ffiplatform.VerificationError( + "source code already written") + self._write_source(file) def compile_module(self): """Write the C source code (if not done already) and compile it. This produces a dynamic link library in 'self.modulefilename'.""" - if self._has_module: - raise ffiplatform.VerificationError("module already compiled") - if not self._has_source: - self._write_source() - self._compile_module() + with self.ffi._lock: + if self._has_module: + raise ffiplatform.VerificationError("module already compiled") + if not self._has_source: + self._write_source() + self._compile_module() def load_library(self): """Get a C module from this Verifier instance. @@ -62,11 +65,14 @@ class Verifier(object): operations to the C module. If necessary, the C code is written and compiled first. """ - if not self._has_module: - self._locate_module() + with self.ffi._lock: if not self._has_module: - self.compile_module() - return self._load_library() + self._locate_module() + if not self._has_module: + if not self._has_source: + self._write_source() + self._compile_module() + return self._load_library() def get_module_name(self): basename = os.path.basename(self.modulefilename) @@ -81,7 +87,9 @@ class Verifier(object): def get_extension(self): if not self._has_source: - self._write_source() + with self.ffi._lock: + if not self._has_source: + self._write_source() sourcename = ffiplatform.maybe_relative_path(self.sourcefilename) modname = self.get_module_name() return ffiplatform.get_extension(sourcename, modname, **self.kwds) |