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+// file : web/apache/log.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#ifndef WEB_APACHE_LOG_HXX
+#define WEB_APACHE_LOG_HXX
+
+#include <httpd.h> // request_rec, server_rec
+#include <http_log.h>
+#include <http_config.h> // module
+
+#include <cstdint> // uint64_t
+#include <algorithm> // min()
+
+#include <web/module.hxx>
+
+namespace web
+{
+ namespace apache
+ {
+ class log: public web::log
+ {
+ public:
+
+ log (server_rec* s, const ::module* m) noexcept
+ : server_ (s), module_ (m) {}
+
+ virtual void
+ write (const char* msg) {write (APLOG_ERR, msg);}
+
+ // Apache-specific interface.
+ //
+ void
+ write (int level, const char* msg) const noexcept
+ {
+ write (nullptr, 0, nullptr, level, msg);
+ }
+
+ void
+ write (const char* file,
+ std::uint64_t line,
+ const char* func,
+ int level,
+ const char* msg) const noexcept
+ {
+ if (file && *file)
+ file = nullptr; // Skip file/line placeholder from log line.
+
+ level = std::min (level, APLOG_TRACE8);
+
+ if (func)
+ ap_log_error (file,
+ line,
+ module_->module_index,
+ level,
+ 0,
+ server_,
+ "[%s]: %s",
+ func,
+ msg);
+ else
+ // Skip function name placeholder from log line.
+ //
+ ap_log_error (file,
+ line,
+ module_->module_index,
+ level,
+ 0,
+ server_,
+ ": %s",
+ msg);
+ }
+
+ private:
+ server_rec* server_;
+ const ::module* module_; // Apache module.
+ };
+ }
+}
+
+#endif // WEB_APACHE_LOG_HXX