static PyObject *
mmap_size_method(mmap_object *self,
PyObject *unused)
{
CHECK_VALID(NULL);
#ifdef MS_WINDOWS
if (self->file_handle != INVALID_HANDLE_VALUE) {
DWORD low,high;
long long size;
low = GetFileSize(self->file_handle, &high);
if (low == INVALID_FILE_SIZE) {
/* It might be that the function appears to have failed,
when indeed its size equals INVALID_FILE_SIZE */
DWORD error = GetLastError();
if (error != NO_ERROR)
return PyErr_SetFromWindowsErr(error);
}
if (!high && low < LONG_MAX)
return PyLong_FromLong((long)low);
size = (((long long)high)<<32) + low;
return PyLong_FromLongLong(size);
} else {
return PyLong_FromSsize_t(self->size);
}
#endif /* MS_WINDOWS */
#ifdef UNIX
{
struct _Py_stat_struct status;
if (_Py_fstat(self->fd, &status) == -1)
return NULL;
#ifdef HAVE_LARGEFILE_SUPPORT
return PyLong_FromLongLong(status.st_size);
#else
return PyLong_FromLong(status.st_size);
#endif
}
#endif /* UNIX */
}
dl_funcptr
_PyImport_FindSharedFuncptr(const char *prefix,
const char *shortname,
const char *pathname, FILE *fp)
{
dl_funcptr p;
void *handle;
char funcname[258];
char pathbuf[260];
int dlopenflags=0;
if (strchr(pathname, '/') == NULL) {
/* Prefix bare filename with "./" */
PyOS_snprintf(pathbuf, sizeof(pathbuf), "./%-.255s", pathname);
pathname = pathbuf;
}
PyOS_snprintf(funcname, sizeof(funcname),
LEAD_UNDERSCORE "%.20s_%.200s", prefix, shortname);
if (fp != NULL) {
int i;
struct _Py_stat_struct status;
if (_Py_fstat(fileno(fp), &status) == -1)
return NULL;
for (i = 0; i < nhandles; i++) {
if (status.st_dev == handles[i].dev &&
status.st_ino == handles[i].ino) {
p = (dl_funcptr) dlsym(handles[i].handle,
funcname);
return p;
}
}
if (nhandles < 128) {
handles[nhandles].dev = status.st_dev;
handles[nhandles].ino = status.st_ino;
}
}
dlopenflags = PyThreadState_GET()->interp->dlopenflags;
handle = dlopen(pathname, dlopenflags);
if (handle == NULL) {
PyObject *mod_name;
PyObject *path;
PyObject *error_ob;
const char *error = dlerror();
if (error == NULL)
error = "unknown dlopen() error";
error_ob = PyUnicode_FromString(error);
if (error_ob == NULL)
return NULL;
mod_name = PyUnicode_FromString(shortname);
if (mod_name == NULL) {
Py_DECREF(error_ob);
return NULL;
}
path = PyUnicode_FromString(pathname);
if (path == NULL) {
Py_DECREF(error_ob);
Py_DECREF(mod_name);
return NULL;
}
PyErr_SetImportError(error_ob, mod_name, path);
Py_DECREF(error_ob);
Py_DECREF(mod_name);
Py_DECREF(path);
return NULL;
}
if (fp != NULL && nhandles < 128)
handles[nhandles++].handle = handle;
p = (dl_funcptr) dlsym(handle, funcname);
return p;
}
