X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libtest%2Fserver.cc;h=6ff6fc3a3a24a50a3377f8640d9d332783de529c;hb=3dcd41c50068eec906a1a11a178e9b3f08ef2326;hp=78c2a771895474d86c7958017951d63fba77d412;hpb=7abcaebdc4c3dd11b779eaef58a7371fb82ae888;p=m6w6%2Flibmemcached diff --git a/libtest/server.cc b/libtest/server.cc index 78c2a771..6ff6fc3a 100644 --- a/libtest/server.cc +++ b/libtest/server.cc @@ -1,95 +1,440 @@ /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab: * - * Libmemcached library + * libtest * * Copyright (C) 2011 Data Differential, http://datadifferential.com/ - * Copyright (C) 2006-2009 Brian Aker All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * - * * The names of its contributors may not be used to endorse or - * promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * This library 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 + * Lesser General Public License for more details. * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ + #include +#include + +#include +#include +#include +#include #include +#include +#include +#include +#include + +// trim from end +static inline std::string &rtrim(std::string &s) +{ + s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun(std::isspace))).base(), s.end()); + return s; +} + #include +#include #include +namespace libtest { -std::ostream& operator<<(std::ostream& output, const server_st &arg) +std::ostream& operator<<(std::ostream& output, const Server &arg) { if (arg.is_socket()) { - output << arg.hostname; + output << arg.hostname(); } else { - output << arg.hostname << ":" << arg.port(); + output << arg.hostname() << ":" << arg.port(); + } + + if (arg.has_pid()) + { + output << " Pid:" << arg.pid(); } + + if (arg.has_socket()) + { + output << " Socket:" << arg.socket(); + } + + if (arg.running().empty() == false) + { + output << " Exec:" << arg.running(); + } + return output; // for multiple << operators } -server_st::~server_st() +#define MAGIC_MEMORY 123570 + +Server::Server(const std::string& host_arg, const in_port_t port_arg, + const std::string& executable, const bool _is_libtool, + bool is_socket_arg) : + _magic(MAGIC_MEMORY), + _is_socket(is_socket_arg), + _port(port_arg), + _hostname(host_arg), + _app(executable, _is_libtool) +{ +} + +Server::~Server() { - if (not _used) +} + +bool Server::check() +{ + _app.slurp(); + _app.check(); + return true; +} + +bool Server::validate() +{ + return _magic == MAGIC_MEMORY; +} + +// If the server exists, kill it +bool Server::cycle() +{ + uint32_t limit= 3; + + // Try to ping, and kill the server #limit number of times + while (--limit and + is_pid_valid(_app.pid())) { - kill(); + if (kill()) + { + Log << "Killed existing server," << *this; + dream(0, 50000); + continue; + } } + + // For whatever reason we could not kill it, and we reached limit + if (limit == 0) + { + Error << "Reached limit, could not kill server"; + return false; + } + + return true; } -void server_st::reset_pid() +bool Server::wait_for_pidfile() const { - pid_file[0]= 0; - _pid= -1; + Wait wait(pid_file(), 4); + + return wait.successful(); } -bool server_st::kill() +bool Server::has_pid() const +{ + return (_app.pid() > 1); +} + + +bool Server::start() { - if (not has_pid() and pid_file[0] == 0) + // If we find that we already have a pid then kill it. + if (has_pid() == true) { - return true; + fatal_message("has_pid() failed, programer error"); + } + + // This needs more work. +#if 0 + if (gdb_is_caller()) + { + _app.use_gdb(); + } +#endif + + if (getenv("YATL_PTRCHECK_SERVER")) + { + _app.use_ptrcheck(); + } + else if (getenv("YATL_VALGRIND_SERVER")) + { + _app.use_valgrind(); + } + + if (args(_app) == false) + { + Error << "Could not build command()"; + return false; + } + + Application::error_t ret; + if (Application::SUCCESS != (ret= _app.run())) + { + Error << "Application::run() " << ret; + return false; } - - if (has_pid()) + _running= _app.print(); + + if (valgrind_is_caller()) { - kill_pid(pid()); - if (pid_file[0]) + dream(5, 50000); + } + + size_t repeat= 5; + _app.slurp(); + while (--repeat) + { + if (pid_file().empty() == false) { - unlink(pid_file); // If this happens we may be dealing with a dead server that left its pid file. + Wait wait(pid_file(), 8); + + if (wait.successful() == false) + { + if (_app.check()) + { + continue; + } + + char buf[PATH_MAX]; + getcwd(buf, sizeof(buf)); + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, + "Unable to open pidfile in %s for: %s stderr:%s", + buf, + _running.c_str(), + _app.stderr_c_str()); + } } - reset_pid(); + } - return true; + uint32_t this_wait; + bool pinged= false; + { + uint32_t timeout= 20; // This number should be high enough for valgrind startup (which is slow) + uint32_t waited; + uint32_t retry; + + for (waited= 0, retry= 1; ; retry++, waited+= this_wait) + { + if ((pinged= ping()) == true) + { + break; + } + else if (waited >= timeout) + { + break; + } + + this_wait= retry * retry / 3 + 1; + libtest::dream(this_wait, 0); + } } - else if (pid_file[0]) + + if (pinged == false) { - kill_file(pid_file); + // If we happen to have a pid file, lets try to kill it + if ((pid_file().empty() == false) and (access(pid_file().c_str(), R_OK) == 0)) + { + _app.slurp(); + if (kill_file(pid_file()) == false) + { + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, + "Failed to kill off server after startup occurred, when pinging failed: %s stderr:%s", + pid_file().c_str(), + _app.stderr_c_str()); + } + + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, + "Failed to ping(), waited: %u server started, having pid_file. exec: %s stderr:%s", + this_wait, _running.c_str(), + _app.stderr_c_str()); + } + else + { + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, + "Failed to ping() server started. exec: %s stderr:%s", + _running.c_str(), + _app.stderr_c_str()); + } + _running.clear(); + return false; + } + + return has_pid(); +} + +void Server::reset_pid() +{ + _running.clear(); + _pid_file.clear(); +} + +pid_t Server::pid() const +{ + return _app.pid(); +} + +void Server::add_option(const std::string& arg) +{ + _options.push_back(std::make_pair(arg, std::string())); +} + +void Server::add_option(const std::string& name, const std::string& value) +{ + _options.push_back(std::make_pair(name, value)); +} + +bool Server::set_socket_file() +{ + char file_buffer[FILENAME_MAX]; + file_buffer[0]= 0; + + if (broken_pid_file()) + { + snprintf(file_buffer, sizeof(file_buffer), "/tmp/%s.socketXXXXXX", name()); + } + else + { + snprintf(file_buffer, sizeof(file_buffer), "var/run/%s.socketXXXXXX", name()); + } + + int fd; + if ((fd= mkstemp(file_buffer)) == -1) + { + perror(file_buffer); + return false; + } + close(fd); + unlink(file_buffer); + + _socket= file_buffer; + + return true; +} + +bool Server::set_pid_file() +{ + char file_buffer[FILENAME_MAX]; + file_buffer[0]= 0; + + if (broken_pid_file()) + { + snprintf(file_buffer, sizeof(file_buffer), "/tmp/%s.pidXXXXXX", name()); + } + else + { + snprintf(file_buffer, sizeof(file_buffer), "var/run/%s.pidXXXXXX", name()); + } + + int fd; + if ((fd= mkstemp(file_buffer)) == -1) + { + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, "mkstemp() failed on %s with %s", file_buffer, strerror(errno)); + } + close(fd); + unlink(file_buffer); + + _pid_file= file_buffer; + + return true; +} + +bool Server::set_log_file() +{ + char file_buffer[FILENAME_MAX]; + file_buffer[0]= 0; + + snprintf(file_buffer, sizeof(file_buffer), "var/log/%s.logXXXXXX", name()); + int fd; + if ((fd= mkstemp(file_buffer)) == -1) + { + throw libtest::fatal(LIBYATL_DEFAULT_PARAM, "mkstemp() failed on %s with %s", file_buffer, strerror(errno)); + } + close(fd); + + _log_file= file_buffer; + + return true; +} + +bool Server::args(Application& app) +{ + + // Set a log file if it was requested (and we can) + if (false and has_log_file_option()) + { + set_log_file(); + log_file_option(app, _log_file); + } + + if (getenv("LIBTEST_SYSLOG") and has_syslog()) + { + app.add_option("--syslog"); + } + + // Update pid_file + { + if (_pid_file.empty() and set_pid_file() == false) + { + return false; + } + + pid_file_option(app, pid_file()); + } + + if (has_socket_file_option()) + { + if (set_socket_file() == false) + { + return false; + } + + socket_file_option(app, _socket); + } + + if (has_port_option()) + { + port_option(app, _port); + } + + for (Options::const_iterator iter= _options.begin(); iter != _options.end(); iter++) + { + if ((*iter).second.empty() == false) + { + app.add_option((*iter).first, (*iter).second); + } + else + { + app.add_option((*iter).first); + } + } + + return true; +} + +bool Server::kill() +{ + if (check_pid(_app.pid())) // If we kill it, reset + { + _app.murder(); + if (broken_pid_file() and pid_file().empty() == false) + { + unlink(pid_file().c_str()); + } + + if (broken_socket_cleanup() and has_socket() and not socket().empty()) + { + unlink(socket().c_str()); + } + reset_pid(); return true; @@ -97,3 +442,5 @@ bool server_st::kill() return false; } + +} // namespace libtest