diff options
Diffstat (limited to 'Modules/mmapmodule.c')
| -rw-r--r-- | Modules/mmapmodule.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c index b53aae1..d6d1601 100644 --- a/Modules/mmapmodule.c +++ b/Modules/mmapmodule.c @@ -124,7 +124,8 @@ mmap_object_dealloc(mmap_object *m_obj) if (m_obj->fd >= 0) (void) close(m_obj->fd); if (m_obj->data!=NULL) { - msync(m_obj->data, m_obj->size, MS_SYNC); + if (m_obj->access != ACCESS_READ && m_obj->access != ACCESS_COPY) + msync(m_obj->data, m_obj->size, MS_SYNC); munmap(m_obj->data, m_obj->size); } #endif /* UNIX */ @@ -559,6 +560,10 @@ mmap_flush_method(mmap_object *self, PyObject *args) PyErr_SetString(PyExc_ValueError, "flush values out of range"); return NULL; } + + if (self->access == ACCESS_READ || self->access == ACCESS_COPY) + return PyLong_FromLong(0); + #ifdef MS_WINDOWS return PyInt_FromLong((long) FlushViewOfFile(self->data+offset, size)); #elif defined(UNIX) |