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LibSQL: Port the backend SQL file to use Core::Stream

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This allows surrounding IO operations with TRY, making the code much
easier to reason about. This also replaces surrounding dbgln_if
statements to use "{:hex-dump}" instead of individually writing out
bytes.
This commit is contained in:
Timothy Flynn 2022-10-28 18:03:10 -04:00 • committed by Linus Groh
parent 6d15cbd411
commit 99a713aa5b
2 changed files with 46 additions and 66 deletions
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12
Userland/Libraries/LibSQL/Heap.h
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@ -11,8 +11,8 @@
#include <AK/HashMap.h>
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibCore/File.h>
#include <LibCore/Object.h>
#include <LibCore/Stream.h>
namespace SQL {
@ -40,7 +40,7 @@ public:
ErrorOr<ByteBuffer> read_block(u32);
[[nodiscard]] u32 new_record_pointer();
[[nodiscard]] bool has_block(u32 block) const { return block < size(); }
[[nodiscard]] bool valid() const { return m_file != nullptr; }
[[nodiscard]] bool valid() const { return static_cast<bool>(m_file); }
u32 schemas_root() const { return m_schemas_root; }
@ -83,11 +83,7 @@ public:
void add_to_wal(u32 block, ByteBuffer& buffer)
{
dbgln_if(SQL_DEBUG, "Adding to WAL: block #{}, size {}", block, buffer.size());
dbgln_if(SQL_DEBUG, "{:02x} {:02x} {:02x} {:02x} {:02x} {:02x} {:02x} {:02x}",
*buffer.offset_pointer(0), *buffer.offset_pointer(1),
*buffer.offset_pointer(2), *buffer.offset_pointer(3),
*buffer.offset_pointer(4), *buffer.offset_pointer(5),
*buffer.offset_pointer(6), *buffer.offset_pointer(7));
dbgln_if(SQL_DEBUG, "{:hex-dump}", buffer.bytes().trim(8));
m_write_ahead_log.set(block, buffer);
}
@ -102,7 +98,7 @@ private:
void initialize_zero_block();
void update_zero_block();
RefPtr<Core::File> m_file { nullptr };
OwnPtr<Core::Stream::BufferedFile> m_file;
u32 m_free_list { 0 };
u32 m_next_block { 1 };
u32 m_end_of_file { 1 };