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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "issue.h"
#include "stringfmt.h"
#include <vespa/log/log.h>
LOG_SETUP(".vespalib.issue");
namespace vespalib {
namespace {
using Link = Issue::Binding::Link;
struct LogIssues : Issue::Handler {
void handle(const Issue &issue) override {
LOG(warning, "%s", issue.message().c_str());
}
};
Link *get_root() {
static LogIssues log_issues;
static Link root{log_issues, nullptr};
return &root;
}
Link **get_head() {
thread_local Link *head = get_root();
return &head;
}
} // <unnamed>
Issue::Issue(vespalib::string message)
: _message(std::move(message))
{
}
Issue::Binding::Binding(Handler &handler)
: _link{handler, nullptr}
{
Link **head = get_head();
_link.next = *head;
*head = &_link;
}
Issue::Binding::~Binding()
{
Link **head = get_head();
LOG_ASSERT(*head == &_link);
*head = (*head)->next;
}
void
Issue::report(const Issue &issue)
{
(*get_head())->handler.handle(issue);
}
Issue::Binding
Issue::listen(Handler &handler)
{
return Binding(handler);
}
void
Issue::report(vespalib::string msg)
{
report(Issue(std::move(msg)));
}
void
Issue::report(const std::exception &e)
{
report(Issue(e.what()));
}
void
Issue::report(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vespalib::string msg = make_string_va(format, ap);
va_end(ap);
report(Issue(std::move(msg)));
}
}
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