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VFS: catch Out_of_ram and Out_of_cap exceptions

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Catch out of RAM and capability exceptions and return error values.
Abort opening a composite directory at Dir_file_system where an
opendir call on any child file-system returns an OUT_OF_RAM or
OUT_OF_CAPS error.

Ref #2642
This commit is contained in:
Emery Hemingway
2018-01-12 13:47:48 -06:00
committed by Norman Feske
parent c34a4bfdb4
commit c7d0accac0
14 changed files with 194 additions and 80 deletions
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12
repos/os/src/lib/vfs/fs_file_system.h
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@ -775,9 +775,9 @@ class Vfs::Fs_file_system : public File_system
catch (::File_system::Invalid_name) { return OPEN_ERR_NAME_TOO_LONG; }
catch (::File_system::Name_too_long) { return OPEN_ERR_NAME_TOO_LONG; }
catch (::File_system::No_space) { return OPEN_ERR_NO_SPACE; }
catch (::File_system::Out_of_ram) { return OPEN_ERR_OUT_OF_RAM; }
catch (::File_system::Out_of_caps) { return OPEN_ERR_OUT_OF_CAPS; }
catch (::File_system::Unavailable) { return OPEN_ERR_UNACCESSIBLE; }
catch (Genode::Out_of_ram) { return OPEN_ERR_OUT_OF_RAM; }
catch (Genode::Out_of_caps) { return OPEN_ERR_OUT_OF_CAPS; }
return OPEN_OK;
}
@ -800,9 +800,9 @@ class Vfs::Fs_file_system : public File_system
catch (::File_system::Name_too_long) { return OPENDIR_ERR_NAME_TOO_LONG; }
catch (::File_system::Node_already_exists) { return OPENDIR_ERR_NODE_ALREADY_EXISTS; }
catch (::File_system::No_space) { return OPENDIR_ERR_NO_SPACE; }
catch (::File_system::Out_of_ram) { return OPENDIR_ERR_OUT_OF_RAM; }
catch (::File_system::Out_of_caps) { return OPENDIR_ERR_OUT_OF_CAPS; }
catch (::File_system::Permission_denied) { return OPENDIR_ERR_PERMISSION_DENIED; }
catch (Genode::Out_of_ram) { return OPENDIR_ERR_OUT_OF_RAM; }
catch (Genode::Out_of_caps) { return OPENDIR_ERR_OUT_OF_CAPS; }
return OPENDIR_OK;
}
@ -844,10 +844,10 @@ class Vfs::Fs_file_system : public File_system
catch (::File_system::Lookup_failed) { return OPENLINK_ERR_LOOKUP_FAILED; }
catch (::File_system::Node_already_exists) { return OPENLINK_ERR_NODE_ALREADY_EXISTS; }
catch (::File_system::No_space) { return OPENLINK_ERR_NO_SPACE; }
catch (::File_system::Out_of_ram) { return OPENLINK_ERR_OUT_OF_RAM; }
catch (::File_system::Out_of_caps) { return OPENLINK_ERR_OUT_OF_CAPS; }
catch (::File_system::Permission_denied) { return OPENLINK_ERR_PERMISSION_DENIED; }
catch (::File_system::Unavailable) { return OPENLINK_ERR_LOOKUP_FAILED; }
catch (Genode::Out_of_ram) { return OPENLINK_ERR_OUT_OF_RAM; }
catch (Genode::Out_of_caps) { return OPENLINK_ERR_OUT_OF_CAPS; }
}
void close(Vfs_handle *vfs_handle) override