Examples with ErrnoException android.system.ErrnoException used on opensource projects

Example 66 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by DirtyUnicorns.

the class ParcelFileDescriptor method createCommSocketPair.

private static FileDescriptor[] createCommSocketPair() throws IOException {
    try {
        // Use SOCK_SEQPACKET so that we have a guarantee that the status
        // is written and read atomically as one unit and is not split
        // across multiple IO operations.
        final FileDescriptor comm1 = new FileDescriptor();
        final FileDescriptor comm2 = new FileDescriptor();
        Os.socketpair(AF_UNIX, SOCK_SEQPACKET, 0, comm1, comm2);
        IoUtils.setBlocking(comm1, false);
        IoUtils.setBlocking(comm2, false);
        return new FileDescriptor[] { comm1, comm2 };
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 67 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by DirtyUnicorns.

the class ParcelFileDescriptor method createSocketPair.

/**
     * @hide
     */
public static ParcelFileDescriptor[] createSocketPair(int type) throws IOException {
    try {
        final FileDescriptor fd0 = new FileDescriptor();
        final FileDescriptor fd1 = new FileDescriptor();
        Os.socketpair(AF_UNIX, type, 0, fd0, fd1);
        return new ParcelFileDescriptor[] { new ParcelFileDescriptor(fd0), new ParcelFileDescriptor(fd1) };
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 68 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by DirtyUnicorns.

the class FileUtils method copyPermissions.

public static void copyPermissions(File from, File to) throws IOException {
    try {
        final StructStat stat = Os.stat(from.getAbsolutePath());
        Os.chmod(to.getAbsolutePath(), stat.st_mode);
        Os.chown(to.getAbsolutePath(), stat.st_uid, stat.st_gid);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 69 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by DirtyUnicorns.

the class PackageManagerService method maybeRenameForeignDexMarkers.

private void maybeRenameForeignDexMarkers(PackageParser.Package existing, PackageParser.Package update, UserHandle user) {
    if (existing.applicationInfo == null || update.applicationInfo == null) {
        // This isn't due to an app installation.
        return;
    }
    final File oldCodePath = new File(existing.applicationInfo.getCodePath());
    final File newCodePath = new File(update.applicationInfo.getCodePath());
    // The codePath hasn't changed, so there's nothing for us to do.
    if (Objects.equals(oldCodePath, newCodePath)) {
        return;
    }
    File canonicalNewCodePath;
    try {
        canonicalNewCodePath = new File(PackageManagerServiceUtils.realpath(newCodePath));
    } catch (IOException e) {
        Slog.w(TAG, "Failed to get canonical path.", e);
        return;
    }
    // This is a bit of a hack. The oldCodePath doesn't exist at this point (because
    // we've already renamed / deleted it) so we cannot call realpath on it. Here we assume
    // that the last component of the path (i.e, the name) doesn't need canonicalization
    // (i.e, that it isn't ".", ".." or a symbolic link). This is a valid assumption for now
    // but may change in the future. Hopefully this function won't exist at that point.
    final File canonicalOldCodePath = new File(canonicalNewCodePath.getParentFile(), oldCodePath.getName());
    // Calculate the prefixes of the markers. These are just the paths with "/" replaced
    // with "@".
    String oldMarkerPrefix = canonicalOldCodePath.getAbsolutePath().replace('/', '@');
    if (!oldMarkerPrefix.endsWith("@")) {
        oldMarkerPrefix += "@";
    }
    String newMarkerPrefix = canonicalNewCodePath.getAbsolutePath().replace('/', '@');
    if (!newMarkerPrefix.endsWith("@")) {
        newMarkerPrefix += "@";
    }
    List<String> updatedPaths = update.getAllCodePathsExcludingResourceOnly();
    List<String> markerSuffixes = new ArrayList<String>(updatedPaths.size());
    for (String updatedPath : updatedPaths) {
        String updatedPathName = new File(updatedPath).getName();
        markerSuffixes.add(updatedPathName.replace('/', '@'));
    }
    for (int userId : resolveUserIds(user.getIdentifier())) {
        File profileDir = Environment.getDataProfilesDeForeignDexDirectory(userId);
        for (String markerSuffix : markerSuffixes) {
            File oldForeignUseMark = new File(profileDir, oldMarkerPrefix + markerSuffix);
            File newForeignUseMark = new File(profileDir, newMarkerPrefix + markerSuffix);
            if (oldForeignUseMark.exists()) {
                try {
                    Os.rename(oldForeignUseMark.getAbsolutePath(), newForeignUseMark.getAbsolutePath());
                } catch (ErrnoException e) {
                    Slog.w(TAG, "Failed to rename foreign use marker", e);
                    oldForeignUseMark.delete();
                }
            }
        }
    }
}

Example 70 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by DirtyUnicorns.

the class PackageInstallerSession method openReadInternal.

private ParcelFileDescriptor openReadInternal(String name) throws IOException {
    assertPreparedAndNotSealed("openRead");
    try {
        if (!FileUtils.isValidExtFilename(name)) {
            throw new IllegalArgumentException("Invalid name: " + name);
        }
        final File target = new File(resolveStageDir(), name);
        final FileDescriptor targetFd = Libcore.os.open(target.getAbsolutePath(), O_RDONLY, 0);
        return new ParcelFileDescriptor(targetFd);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}