updater: Add SourceInfo::{ReadAll,DumpBuffer,Overlaps}.
Bug: 112151972
Test: Run recovery_unit_test on marlin.
Change-Id: Ica2a7b3c768f5d8ca5d591a9560bca9f8ed847c5
diff --git a/updater/include/private/commands.h b/updater/include/private/commands.h
index 85b5288..5212897 100644
--- a/updater/include/private/commands.h
+++ b/updater/include/private/commands.h
@@ -16,6 +16,9 @@
#pragma once
+#include <stdint.h>
+
+#include <functional>
#include <ostream>
#include <string>
#include <vector>
@@ -111,6 +114,23 @@
}
}
+ // Reads all the data specified by this SourceInfo object into the given 'buffer', by calling the
+ // given readers. Caller needs to specify the block size for the represented blocks. The given
+ // buffer needs to be sufficiently large. Otherwise it returns false. 'block_reader' and
+ // 'stash_reader' read the specified data into the given buffer (guaranteed to be large enough)
+ // respectively. The readers should return 0 on success, or -1 on error.
+ bool ReadAll(
+ std::vector<uint8_t>* buffer, size_t block_size,
+ const std::function<int(const RangeSet&, std::vector<uint8_t>*)>& block_reader,
+ const std::function<int(const std::string&, std::vector<uint8_t>*)>& stash_reader) const;
+
+ // Whether this SourceInfo overlaps with the given TargetInfo object.
+ bool Overlaps(const TargetInfo& target) const;
+
+ // Dumps the hashes in hex for the given buffer that's loaded from this SourceInfo object
+ // (excluding the stashed blocks which are handled separately).
+ void DumpBuffer(const std::vector<uint8_t>& buffer, size_t block_size) const;
+
const std::string& hash() const {
return hash_;
}
@@ -334,6 +354,10 @@
return hash_tree_info_;
}
+ size_t block_size() const {
+ return block_size_;
+ }
+
constexpr explicit operator bool() const {
return type_ != Type::LAST;
}
@@ -377,6 +401,8 @@
StashInfo stash_;
// The hash_tree info. Only meaningful for COMPUTE_HASH_TREE.
HashTreeInfo hash_tree_info_;
+ // The unit size of each block to be used in this command.
+ size_t block_size_{ 4096 };
};
std::ostream& operator<<(std::ostream& os, const Command& command);