#include <fstream>
#include <list>
+#include <memory>
#include <string>
#include <vector>
// To do this, we walk the list of mounted file systems.
// But we also need to get the matching fstab entries to see
// the original flags
- struct fstab* fstab = fs_mgr_read_fstab_default();
- if (!fstab) return false;
+ auto fstab_default = std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)>{
+ fs_mgr_read_fstab_default(), fs_mgr_free_fstab};
+ if (!fstab_default) return false;
- struct fstab* mounts = fs_mgr_read_fstab("/proc/mounts");
- if (mounts == NULL) {
- fs_mgr_free_fstab(fstab);
- return false;
- }
+ auto mounts = std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)>{
+ fs_mgr_read_fstab("/proc/mounts"), fs_mgr_free_fstab};
+ if (!mounts) return false;
// Walk mounted file systems
for (int i = 0; i < mounts->num_entries; ++i) {
const fstab_rec* mount_rec = &mounts->recs[i];
- const fstab_rec* fstab_rec = fs_mgr_get_entry_for_mount_point(fstab, mount_rec->mount_point);
+ const fstab_rec* fstab_rec =
+ fs_mgr_get_entry_for_mount_point(fstab_default.get(), mount_rec->mount_point);
if (!fstab_rec) continue;
if (fs_mgr_is_checkpoint_fs(fstab_rec)) {
setBowState(mount_rec->blk_device, "2");
}
}
- fs_mgr_free_fstab(mounts);
- fs_mgr_free_fstab(fstab);
return android::base::RemoveFileIfExists(kMetadataCPFile);
}
}
bool cp_prepareDriveForCheckpoint(const std::string&) {
- struct fstab* fstab = fs_mgr_read_fstab_default();
- if (!fstab) return false;
+ auto fstab_default = std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)>{
+ fs_mgr_read_fstab_default(), fs_mgr_free_fstab};
+ if (!fstab_default) return false;
- struct fstab* mounts = fs_mgr_read_fstab("/proc/mounts");
- if (mounts == NULL) {
- fs_mgr_free_fstab(fstab);
- return false;
- }
+ auto mounts = std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)>{
+ fs_mgr_read_fstab("/proc/mounts"), fs_mgr_free_fstab};
+ if (!mounts) return false;
for (int i = 0; i < mounts->num_entries; ++i) {
const fstab_rec* mount_rec = &mounts->recs[i];
- const fstab_rec* fstab_rec = fs_mgr_get_entry_for_mount_point(fstab, mount_rec->mount_point);
+ const fstab_rec* fstab_rec =
+ fs_mgr_get_entry_for_mount_point(fstab_default.get(), mount_rec->mount_point);
if (!fstab_rec) continue;
if (fs_mgr_is_checkpoint_blk(fstab_rec)) {
setBowState(mount_rec->blk_device, "1");
}
}
- fs_mgr_free_fstab(mounts);
- fs_mgr_free_fstab(fstab);
return true;
}