diff options
Diffstat (limited to 'src/exchange/taler-exchange-httpd_loop.c')
| -rw-r--r-- | src/exchange/taler-exchange-httpd_loop.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/src/exchange/taler-exchange-httpd_loop.c b/src/exchange/taler-exchange-httpd_loop.c deleted file mode 100644 index 086fbc87..00000000 --- a/src/exchange/taler-exchange-httpd_loop.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014--2020 Taler Systems SA - - TALER is free software; you can redistribute it and/or modify it under the - terms of the GNU Affero General Public License as published by the Free Software - Foundation; either version 3, or (at your option) any later version. - - TALER 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 - TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> -*/ -/** - * @file taler-exchange-httpd_loop.c - * @brief management of our main loop - * @author Florian Dold - * @author Benedikt Mueller - * @author Christian Grothoff - */ -#include "platform.h" -#include <pthread.h> -#include "taler-exchange-httpd_loop.h" - - -/* ************************* Signal logic ************************** */ - -/** - * Pipe used for signaling reloading of our key state. - */ -static int reload_pipe[2] = { -1, -1 }; - - -/** - * Handle a signal, writing relevant signal numbers to the pipe. - * - * @param signal_number the signal number - */ -static void -handle_signal (int signal_number) -{ - char c = (char) signal_number; /* never seen a signal_number > 127 on any platform */ - - (void) ! write (reload_pipe[1], - &c, - 1); - /* While one might like to "handle errors" here, even logging via fprintf() - isn't safe inside of a signal handler. So there is nothing we safely CAN - do. OTOH, also very little that can go wrong in practice. Calling _exit() - on errors might be a possibility, but that might do more harm than good. */// -} - - -/** - * Call #handle_signal() to pass the received signal via - * the control pipe. - */ -static void -handle_sigint (void) -{ - handle_signal (SIGINT); -} - - -/** - * Call #handle_signal() to pass the received signal via - * the control pipe. - */ -static void -handle_sigterm (void) -{ - handle_signal (SIGTERM); -} - - -/** - * Call #handle_signal() to pass the received signal via - * the control pipe. - */ -static void -handle_sighup (void) -{ - handle_signal (SIGHUP); -} - - -/** - * Call #handle_signal() to pass the received signal via - * the control pipe. - */ -static void -handle_sigchld (void) -{ - handle_signal (SIGCHLD); -} - - -int -TEH_loop_run (void) -{ - int ret; - - ret = 2; - while (2 == ret) - { - char c; - ssize_t res; - - errno = 0; - res = read (reload_pipe[0], - &c, - 1); - if ((res < 0) && (EINTR != errno)) - { - GNUNET_break (0); - ret = GNUNET_SYSERR; - break; - } - if (EINTR == errno) - continue; - switch (c) - { - case SIGTERM: - case SIGINT: - /* terminate */ - ret = GNUNET_OK; - break; - case SIGHUP: - /* restart updated binary */ - ret = GNUNET_NO; - break; -#if HAVE_DEVELOPER - case SIGCHLD: - /* running in test-mode, test finished, terminate */ - ret = GNUNET_OK; - break; -#endif - default: - /* unexpected character */ - GNUNET_break (0); - break; - } - } - return ret; -} - - -static struct GNUNET_SIGNAL_Context *sigterm; -static struct GNUNET_SIGNAL_Context *sigint; -static struct GNUNET_SIGNAL_Context *sighup; -static struct GNUNET_SIGNAL_Context *sigchld; - - -int -TEH_loop_init (void) -{ - if (0 != pipe (reload_pipe)) - { - GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, - "pipe"); - return GNUNET_SYSERR; - } - sigterm = GNUNET_SIGNAL_handler_install (SIGTERM, - &handle_sigterm); - sigint = GNUNET_SIGNAL_handler_install (SIGINT, - &handle_sigint); - sighup = GNUNET_SIGNAL_handler_install (SIGHUP, - &handle_sighup); - sigchld = GNUNET_SIGNAL_handler_install (SIGCHLD, - &handle_sigchld); - return GNUNET_OK; -} - - -void -TEH_loop_done (void) -{ - if (NULL != sigterm) - { - GNUNET_SIGNAL_handler_uninstall (sigterm); - sigterm = NULL; - } - if (NULL != sigint) - { - GNUNET_SIGNAL_handler_uninstall (sigint); - sigint = NULL; - } - if (NULL != sighup) - { - GNUNET_SIGNAL_handler_uninstall (sighup); - sighup = NULL; - } - if (NULL != sigchld) - { - GNUNET_SIGNAL_handler_uninstall (sigchld); - sigchld = NULL; - } - if (-1 != reload_pipe[0]) - { - GNUNET_break (0 == close (reload_pipe[0])); - GNUNET_break (0 == close (reload_pipe[1])); - reload_pipe[0] = reload_pipe[1] = -1; - } -} - - -/* end of taler-exchange-httpd_loop.c */ |