diff options
Diffstat (limited to 'gsi_service.cpp')
| -rw-r--r-- | gsi_service.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gsi_service.cpp b/gsi_service.cpp index 14ef1d4..6d310a4 100644 --- a/gsi_service.cpp +++ b/gsi_service.cpp @@ -16,6 +16,7 @@ #include "gsi_service.h" +#include <sys/statvfs.h> #include <sys/vfs.h> #include <unistd.h> @@ -42,6 +43,7 @@ #include <libfiemap/image_manager.h> #include <openssl/sha.h> #include <private/android_filesystem_config.h> +#include <storage_literals/storage_literals.h> #include "file_paths.h" #include "libgsi_private.h" @@ -52,6 +54,7 @@ namespace gsi { using namespace std::literals; using namespace android::fs_mgr; using namespace android::fiemap; +using namespace android::storage_literals; using android::base::ReadFileToString; using android::base::ReadFullyAtOffset; using android::base::RemoveFileIfExists; @@ -493,6 +496,27 @@ binder::Status GsiService::getAvbPublicKey(AvbPublicKey* dst, int32_t* _aidl_ret return binder::Status::ok(); } +binder::Status GsiService::suggestScratchSize(int64_t* _aidl_return) { + ENFORCE_SYSTEM; + + static constexpr int64_t kMinScratchSize = 512_MiB; + static constexpr int64_t kMaxScratchSize = 2_GiB; + + int64_t size = 0; + struct statvfs info; + if (statvfs(install_dir_.c_str(), &info)) { + PLOG(ERROR) << "Could not statvfs(" << install_dir_ << ")"; + } else { + const int64_t available_space = static_cast<int64_t>(info.f_bavail) * info.f_frsize; + LOG(INFO) << "Available space of " << install_dir_ << ": " << available_space; + // Use up to half of free space. Don't exhaust the storage device with scratch partition. + size = available_space / 2; + } + + *_aidl_return = std::clamp(size, kMinScratchSize, kMaxScratchSize); + return binder::Status::ok(); +} + bool GsiService::CreateInstallStatusFile() { if (!android::base::WriteStringToFile("0", kDsuInstallStatusFile)) { PLOG(ERROR) << "write " << kDsuInstallStatusFile; |