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dissect-image: add dissected_image_close() that closes all references to resources

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This commit is contained in:
Lennart Poettering 2023-03-14 22:46:56 +01:00
parent f7178a04db
commit 9444e54e56
2 changed files with 15 additions and 0 deletions
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14
src/shared/dissect-image.c
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@ -1643,6 +1643,20 @@ int dissect_image_file_and_warn(
verity);
}
void dissected_image_close(DissectedImage *m) {
if (!m)
return;
/* Closes all fds we keep open assocated with this, but nothing else */
FOREACH_ARRAY(p, m->partitions, _PARTITION_DESIGNATOR_MAX) {
p->mount_node_fd = safe_close(p->mount_node_fd);
p->fsmount_fd = safe_close(p->fsmount_fd);
}
m->loop = loop_device_unref(m->loop);
}
DissectedImage* dissected_image_unref(DissectedImage *m) {
if (!m)
return NULL;

1
src/shared/dissect-image.h
View file

@ -163,6 +163,7 @@ int dissect_image_file_and_warn(const char *path, const VeritySettings *verity,
int dissect_loop_device(LoopDevice *loop, const VeritySettings *verity, const MountOptions *mount_options, const ImagePolicy *image_policy, DissectImageFlags flags, DissectedImage **ret);
int dissect_loop_device_and_warn(LoopDevice *loop, const VeritySettings *verity, const MountOptions *mount_options, const ImagePolicy *image_policy, DissectImageFlags flags, DissectedImage **ret);
void dissected_image_close(DissectedImage *m);
DissectedImage* dissected_image_unref(DissectedImage *m);
DEFINE_TRIVIAL_CLEANUP_FUNC(DissectedImage*, dissected_image_unref);