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Fix the size() method to return the size of the file on Unix, not the

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size of the mapped area.  This seems to be what the Windows version does.
This change requires keeping around the fd of the mapped file.
This commit is contained in:
Andrew M. Kuchling 2000-06-17 22:41:22 +00:00
parent b8050697b8
commit 7b9fb92932
1 changed files with 12 additions and 3 deletions
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15
Modules/mmapmodule.c
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@ -29,6 +29,7 @@
#ifdef UNIX
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#endif
#include <string.h>
@ -49,7 +50,7 @@ typedef struct {
#endif
#ifdef UNIX
/* No Unix-specific information at this point in time */
int fd;
#endif
} mmap_object;
@ -210,7 +211,7 @@ mmap_find_method (mmap_object *self,
static PyObject *
mmap_write_method (mmap_object * self,
PyObject * args)
PyObject * args)
{
long length;
char * data;
@ -264,7 +265,14 @@ mmap_size_method (mmap_object * self,
#endif /* MS_WIN32 */
#ifdef UNIX
return (Py_BuildValue ("l", self->size) );
{
struct stat buf;
if (-1 == fstat(self->fd, &buf)) {
PyErr_SetFromErrno(mmap_module_error);
return NULL;
}
return (Py_BuildValue ("l", buf.st_size) );
}
#endif /* UNIX */
}
@ -717,6 +725,7 @@ new_mmap_object (PyObject * self, PyObject * args, PyObject *kwdict)
if (m_obj == NULL) {return NULL;}
m_obj->size = (size_t) map_size;
m_obj->pos = (size_t) 0;
m_obj->fd = fd;
m_obj->data = mmap(NULL, map_size,
prot, flags,
fd, 0);