mirror of
https://github.com/matrix-construct/construct
synced 2024-12-24 14:34:00 +01:00
ircd: Apply branch expectation attributes to various case labels.
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parent
5e32f88b0d
commit
89e44ce8e9
8 changed files with 38 additions and 4 deletions
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@ -56,12 +56,15 @@ ircd::allocator::allocate(const size_t alignment,
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void *ret;
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switch(int errc(::posix_memalign(&ret, alignment, size)); errc)
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{
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[[likely]]
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case 0:
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break;
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[[unlikely]]
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case int(std::errc::not_enough_memory):
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throw std::bad_alloc{};
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[[unlikely]]
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default:
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throw_system_error();
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__builtin_unreachable();
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@ -249,9 +252,11 @@ ircd::allocator::advise(const const_buffer &buf,
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assert(aligned(data(buf), info::page_size));
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switch(const auto r(::madvise(mutable_cast(data(buf)), size(buf), advice)); r)
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{
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[[likely]]
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case 0:
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return size(buf); // success
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[[unlikely]]
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default:
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throw_system_error(r); // error
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}
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@ -4398,6 +4398,7 @@ ircd::db::throw_on_error::throw_on_error(const rocksdb::Status &status)
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switch(status.code())
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{
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[[likely]]
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case Status::kOk:
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return;
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@ -4412,6 +4413,7 @@ ircd::db::throw_on_error::throw_on_error(const rocksdb::Status &status)
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[[fallthrough]];
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#endif
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[[unlikely]]
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default:
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throw error
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{
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@ -4444,6 +4446,7 @@ ircd::db::error_to_status::error_to_status(const std::error_code &e)
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switch(e.value())
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{
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[[likely]]
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case 0:
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return Status::OK();
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@ -4529,6 +4532,7 @@ ircd::db::append(rocksdb::WriteBatch &batch,
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const auto v(slice(std::get<2>(delta)));
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switch(std::get<0>(delta))
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{
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[[unlikely]]
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case op::GET: assert(0); break;
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case op::SET: batch.Put(c, k, v); break;
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case op::MERGE: batch.Merge(c, k, v); break;
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@ -5120,11 +5124,13 @@ ircd::db::valid(const rocksdb::Iterator &it)
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{
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using rocksdb::Status;
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[[likely]]
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case Status::kOk:
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case Status::kNotFound:
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case Status::kIncomplete:
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return it.Valid();
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[[unlikely]]
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default:
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throw_on_error
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{
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@ -5142,13 +5148,16 @@ ircd::db::valid(const rocksdb::Status &s)
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{
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using rocksdb::Status;
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[[likely]]
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case Status::kOk:
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return true;
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[[likely]]
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case Status::kNotFound:
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case Status::kIncomplete:
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return false;
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[[unlikely]]
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default:
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throw_on_error{s};
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__builtin_unreachable();
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@ -523,7 +523,7 @@ ircd::db::loglevel(const database &d)
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switch(level)
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{
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default:
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[[unlikely]]
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case rocksdb::NUM_INFO_LOG_LEVELS:
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assert(0);
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@ -534,6 +534,9 @@ ircd::db::loglevel(const database &d)
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case rocksdb::INFO_LEVEL: return log::level::INFO;
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case rocksdb::DEBUG_LEVEL: return log::level::DEBUG;
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}
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assert(0);
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__builtin_unreachable();
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}
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ircd::db::options
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@ -2332,8 +2332,13 @@ ircd::fs::advise(const fd &fd,
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cnt = std::min(opts.offset + count - off, max_count);
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switch(const auto r(::posix_fadvise(fd, off, cnt, advice)); r)
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{
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case 0: break;
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default: throw_system_error(r);
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[[likely]]
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case 0:
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break;
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[[unlikely]]
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default:
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throw_system_error(r);
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}
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}
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while(off + cnt < opts.offset + count);
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@ -1671,6 +1671,7 @@ try
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};
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break;
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[[unlikely]]
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default:
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throw ircd::not_implemented{};
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}
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@ -1760,7 +1761,9 @@ try
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return;
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}
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default: throw ircd::not_implemented{};
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[[unlikely]]
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default:
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throw ircd::not_implemented{};
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}
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}
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catch(const boost::system::system_error &e)
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@ -2188,6 +2191,7 @@ noexcept try
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}
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// A cancelation means there was no timeout.
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[[likely]]
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case int(std::errc::operation_canceled):
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{
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assert(ec.category() == std::system_category());
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@ -2196,6 +2200,7 @@ noexcept try
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}
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// All other errors are unexpected, logged and ignored here.
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[[unlikely]]
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default: throw panic
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{
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"socket(%p): unexpected :%s",
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@ -2520,6 +2525,7 @@ noexcept try
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if(!valid) switch(err)
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{
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[[unlikely]]
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case X509_V_OK:
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assert(0);
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@ -172,6 +172,7 @@ ircd::net::dns::resolver::make_query(const mutable_buffer &buf,
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string_view hoststr;
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switch(tag.opts.qtype)
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{
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[[unlikely]]
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case 0: throw error
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{
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"Query type is required to form a question."
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@ -803,6 +804,7 @@ ircd::net::dns::resolver::handle_error(const header &header,
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{
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switch(header.rcode)
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{
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[[likely]]
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case 0: // NoError; continue
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return true;
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@ -1117,6 +1117,7 @@ try
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return;
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}
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[[unlikely]]
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default: throw http::error
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{
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"Cannot send json::%s as response content",
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@ -1236,6 +1236,7 @@ ircd::server::peer::handle_error(link &link,
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if(system_category(ec)) switch(ec.value())
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{
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[[unlikely]]
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case 0:
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assert(0);
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break;
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@ -2414,6 +2415,7 @@ noexcept try
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if(system_category(ec)) switch(ec.value())
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{
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[[likely]]
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case 0:
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handle_writable_success();
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return;
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@ -2601,6 +2603,7 @@ noexcept try
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if(system_category(ec)) switch(ec.value())
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{
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[[likely]]
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case 0:
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handle_readable_success();
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return;
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