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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems, Inc.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "drizzled/plugin/error_message.h"
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#include "drizzled/gettext.h"
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std::vector<plugin::ErrorMessage *> all_errmsg_handler;
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bool plugin::ErrorMessage::addPlugin(plugin::ErrorMessage *handler)
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all_errmsg_handler.push_back(handler);
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void plugin::ErrorMessage::removePlugin(plugin::ErrorMessage *)
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all_errmsg_handler.clear();
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class Print : public std::unary_function<plugin::ErrorMessage *, bool>
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error::level_t priority;
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Print(error::level_t priority_arg,
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const char *format_arg, va_list ap_arg) :
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std::unary_function<plugin::ErrorMessage *, bool>(),
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priority(priority_arg), format(format_arg)
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~Print() { va_end(ap); }
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inline result_type operator()(argument_type handler)
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va_copy(handler_ap, ap);
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if (handler->errmsg(priority, format, handler_ap))
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/* we're doing the errmsg plugin api,
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so we can't trust the errmsg api to emit our error messages
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so we will emit error messages to stderr */
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/* TRANSLATORS: The leading word "errmsg" is the name
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of the plugin api, and so should not be translated. */
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_("errmsg plugin '%s' errmsg() failed"),
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handler->getName().c_str());
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bool plugin::ErrorMessage::vprintf(error::level_t priority, char const *format, va_list ap)
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Check to see if any errmsg plugin has been loaded
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if not, just fall back to emitting the message to stderr.
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if (not all_errmsg_handler.size())
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/* if it turns out that the vfprintf doesnt do one single write
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(single writes are atomic), then this needs to be rewritten to
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vsprintf into a char buffer, and then write() that char buffer
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vfprintf(stderr, format, ap);
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/* Use find_if instead of foreach so that we can collect return codes */
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std::vector<plugin::ErrorMessage *>::iterator iter=
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std::find_if(all_errmsg_handler.begin(), all_errmsg_handler.end(),
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Print(priority, format, ap));
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/* If iter is == end() here, that means that all of the plugins returned
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* false, which in this case means they all succeeded. Since we want to
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* return false on success, we return the value of the two being !=
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return iter != all_errmsg_handler.end();
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} /* namespace drizzled */