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Diffstat (limited to 'storage/tokudb/PerconaFT/src/errors.cc')
| -rw-r--r-- | storage/tokudb/PerconaFT/src/errors.cc | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/storage/tokudb/PerconaFT/src/errors.cc b/storage/tokudb/PerconaFT/src/errors.cc new file mode 100644 index 00000000..0ec5b6d9 --- /dev/null +++ b/storage/tokudb/PerconaFT/src/errors.cc @@ -0,0 +1,141 @@ +/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ +// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4: +#ident "$Id$" +/*====== +This file is part of PerconaFT. + + +Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved. + + PerconaFT is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License, version 2, + as published by the Free Software Foundation. + + PerconaFT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with PerconaFT. If not, see <http://www.gnu.org/licenses/>. + +---------------------------------------- + + PerconaFT is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License, version 3, + as published by the Free Software Foundation. + + PerconaFT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with PerconaFT. If not, see <http://www.gnu.org/licenses/>. +======= */ + +#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved." + +/** + \file errors.c + \brief Error handling + + The error handling routines for ydb +*/ + +#include <toku_portability.h> +#include <stdio.h> +#include <stdarg.h> + +#include "ydb-internal.h" + +/** Checks whether the environment has panicked */ +int toku_env_is_panicked(DB_ENV *dbenv /**< The environment to check */) { + if (dbenv==0) return 0; + return dbenv->i->is_panicked; +} + +/* Prints an error message to a file specified by env (or stderr), + preceded by the environment's error prefix. */ +static void toku__ydb_error_file(const DB_ENV *env, bool use_stderr, + char errmsg[]) { + /* Determine the error file to use */ + FILE *CAST_FROM_VOIDP(efile, env->i->errfile); + if (efile==NULL && env->i->errcall==0 && use_stderr) efile = stderr; + + /* Print out on a file */ + if (efile) { + if (env->i->errpfx) fprintf(efile, "%s: ", env->i->errpfx); + fprintf(efile, "%s", errmsg); + } +} + +/** + + Prints out environment errors, adjusting to a variety of options + and formats. + The printout format can be controlled to print the following optional + messages: + - The environment error message prefix + - User-supplied prefix obtained by printing ap with the + fmt string + - The standard db error string + The print out takes place via errcall (if set), errfile (if set), + or stderr if neither is set (and the user so toggles the printout). + Both errcall and errfile can be set. + The error message is truncated to approximately 4,000 characters. + + \param env The environment that the error refers to. + \param error The error code + \param include_stderrstring Controls whether the standard db error + string should be included in the print out + \param use_stderr_if_nothing_else Toggles the use of stderr. + \param fmt Output format for optional prefix arguments (must be NULL + if the prefix is empty) + \param ap Optional prefix +*/ +void toku_ydb_error_all_cases(const DB_ENV * env, + int error, + bool include_stderrstring, + bool use_stderr_if_nothing_else, + const char *fmt, va_list ap) { + /* Construct the error message */ + char buf [4000]; + int count=0; + if (fmt) count=vsnprintf(buf, sizeof(buf), fmt, ap); + if (include_stderrstring) { + count+=snprintf(&buf[count], sizeof(buf)-count, ": %s", + db_strerror(error)); + } + + /* Print via errcall */ + if (env->i->errcall) env->i->errcall(env, env->i->errpfx, buf); + + /* Print out on a file */ + toku__ydb_error_file(env, use_stderr_if_nothing_else, buf); +} + +/** Handle all the error cases (but don't do the default thing.) + \param dbenv The environment that is subject to errors + \param error The error code + \param fmt The format string for additional variable arguments to + be printed */ +int toku_ydb_do_error (const DB_ENV *dbenv, int error, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + toku_ydb_error_all_cases(dbenv, error, false, false, fmt, ap); + va_end(ap); + return error; +} + +/** Handle errors on an environment, + \param dbenv The environment that is subject to errors + \param error The error code + \param fmt The format string for additional variable arguments to + be printed */ +void toku_env_err(const DB_ENV * env, int error, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + toku_ydb_error_all_cases(env, error, false, true, fmt, ap); + va_end(ap); +} |