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4e862d56da
As noted in the libc++ 19 release notes [1], std::char_traits<> is now
only provided for char, char8_t, char16_t, char32_t and wchar_t, and any
instantiation for other types will fail.
This causes databases/mysql80-client to fail to compile with clang 19
and libc++ 19, resulting in errors similar to:
/usr/include/c++/v1/string:820:42: error: implicit instantiation of
undefined template 'std::char_traits<unsigned char>'
820 | static_assert(is_same<_CharT, typename
traits_type::char_type>::value,
| ^
/wrkdirs/usr/ports/databases/mysql80-client/work/mysql-8.0.39/sql/rpl_log_encryption.h:821:14:
note: in instantiation of template class 'std::basic_string<unsigned
char>' requested here
821 | Key_string m_encrypted_password;
| ^
/usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared
here
23 | struct _LIBCPP_TEMPLATE_VIS char_traits;
| ^
`Key_string` is defined as `std::basic_string<unsigned char>`, which is
no longer possible. So redefine it as a `std::vector<unsigned char>`
instead.
This requires only a few small adjustments in other places: replacing
the `length()` method with the equivalent `size()` method, and adjusting
the arguments for the `assign()` method, which for `std::vector` takes a
begin and end iterator, instead of a begin iterator and a size.
[1]
https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals
PR: 280693
Sponsored by: Netzkommune GmbH
36 lines
1.5 KiB
C++
36 lines
1.5 KiB
C++
--- sql/mdl_context_backup.cc.orig 2024-07-12 19:15:25 UTC
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+++ sql/mdl_context_backup.cc
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@@ -160,7 +160,7 @@ bool MDL_context_backup_manager::create_backup(const M
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DBUG_TRACE;
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try {
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- MDL_context_backup_key key_obj(key, keylen);
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+ MDL_context_backup_key key_obj(key, key + keylen);
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/*
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Since this method is called as part of THD cleaning up, every XA
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@@ -193,7 +193,7 @@ bool MDL_context_backup_manager::create_backup(MDL_req
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bool result = false;
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try {
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- MDL_context_backup_key key_obj(key, keylen);
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+ MDL_context_backup_key key_obj(key, key + keylen);
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/*
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Check for presence a record with specified key in the collection of
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MDL_context_backup elements. It is ok to already have a record with
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@@ -239,7 +239,7 @@ bool MDL_context_backup_manager::restore_backup(MDL_co
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MUTEX_LOCK(guard, &m_LOCK_mdl_context_backup);
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- auto result = m_backup_map.find(MDL_context_backup_key(key, keylen));
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+ auto result = m_backup_map.find(MDL_context_backup_key(key, key + keylen));
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if (result != m_backup_map.end()) {
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element = result->second.get();
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res = mdl_context->clone_tickets(element->get_context(), MDL_TRANSACTION);
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@@ -252,5 +252,5 @@ void MDL_context_backup_manager::delete_backup(const u
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const size_t keylen) {
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DBUG_TRACE;
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MUTEX_LOCK(guard, &m_LOCK_mdl_context_backup);
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- m_backup_map.erase(MDL_context_backup_key(key, keylen));
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+ m_backup_map.erase(MDL_context_backup_key(key, key + keylen));
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}
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