Jay Sorg
9 years ago
parent
4f128c530c
commit
4e0d0f3ba0
@ -1,121 +0,0 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* session manager
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* linux only
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*/
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#include "sesman.h"
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extern struct config_sesman *g_cfg; /* in sesman.c */
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static tbus g_sync_mutex = 0;
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static tbus g_lock_chain = 0;
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static tbus g_sync_sem = 0;
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static tbus g_lock_socket = 0;
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/******************************************************************************/
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void APP_CC
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lock_init(void)
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{
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g_sync_mutex = tc_mutex_create();
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g_lock_chain = tc_mutex_create();
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g_sync_sem = tc_sem_create(0);
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g_lock_socket = tc_sem_create(1);
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}
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/******************************************************************************/
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void APP_CC
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lock_deinit(void)
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{
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tc_mutex_delete(g_sync_mutex);
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tc_mutex_delete(g_lock_chain);
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tc_sem_delete(g_sync_sem);
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tc_sem_delete(g_lock_socket);
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}
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/******************************************************************************/
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void APP_CC
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lock_chain_acquire(void)
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{
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/* lock the chain */
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LOG_DBG("lock_chain_acquire()");
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tc_mutex_lock(g_lock_chain);
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}
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/******************************************************************************/
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void APP_CC
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lock_chain_release(void)
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{
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/* unlock the chain */
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LOG_DBG("lock_chain_release()");
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tc_mutex_unlock(g_lock_chain);
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}
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/******************************************************************************/
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void APP_CC
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lock_socket_acquire(void)
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{
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/* lock socket variable */
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LOG_DBG("lock_socket_acquire()");
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tc_sem_dec(g_lock_socket);
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}
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/******************************************************************************/
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void APP_CC
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lock_socket_release(void)
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{
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/* unlock socket variable */
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LOG_DBG("lock_socket_release()");
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tc_sem_inc(g_lock_socket);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_acquire(void)
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{
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/* lock sync variable */
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LOG_DBG("lock_sync_acquire()");
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tc_mutex_lock(g_sync_mutex);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_release(void)
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{
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/* unlock socket variable */
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LOG_DBG("lock_sync_release()");
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tc_mutex_unlock(g_sync_mutex);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_sem_acquire(void)
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{
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/* dec sem */
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LOG_DBG("lock_sync_sem_acquire()");
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tc_sem_dec(g_sync_sem);
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}
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/******************************************************************************/
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void APP_CC
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lock_sync_sem_release(void)
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{
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/* inc sem */
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LOG_DBG("lock_sync_sem_release()");
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tc_sem_inc(g_sync_sem);
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}
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@ -1,104 +0,0 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LOCK_H
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#define LOCK_H
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#include "sesman.h"
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/**
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*
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* @brief initializes all the locks
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*
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*/
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void APP_CC
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lock_init(void);
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/**
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*
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* @brief cleanup all the locks
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*
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*/
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void APP_CC
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lock_deinit(void);
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/**
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*
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* @brief acquires the lock for the session chain
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*
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*/
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void APP_CC
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lock_chain_acquire(void);
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/**
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*
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* @brief releases the session chain lock
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*
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*/
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void APP_CC
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lock_chain_release(void);
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/**
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*
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* @brief request the socket lock
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*
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*/
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void APP_CC
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lock_socket_acquire(void);
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/**
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*
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* @brief releases the socket lock
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*
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*/
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void APP_CC
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lock_socket_release(void);
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/**
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*
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* @brief request the main sync lock
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*
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*/
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void APP_CC
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lock_sync_acquire(void);
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/**
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*
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* @brief releases the main sync lock
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*
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*/
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void APP_CC
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lock_sync_release(void);
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/**
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*
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* @brief request the sync sem lock
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*
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*/
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void APP_CC
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lock_sync_sem_acquire(void);
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/**
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*
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* @brief releases the sync sem lock
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*
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*/
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void APP_CC
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lock_sync_sem_release(void);
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#endif
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@ -1,173 +0,0 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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*
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* @file thread.c
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* @brief thread stuff...
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* @author Simone Fedele
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*
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*/
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#include "sesman.h"
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#include <errno.h>
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#include <signal.h>
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#include <pthread.h>
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extern struct config_sesman *g_cfg; /* in sesman.c */
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static pthread_t g_thread_sighandler;
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//static pthread_t g_thread_updater;
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/* a variable to pass the socket of s connection to a thread */
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int g_thread_sck;
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/******************************************************************************/
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int DEFAULT_CC
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thread_sighandler_start(void)
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{
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int ret;
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sigset_t sigmask;
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sigset_t oldmask;
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sigset_t waitmask;
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/* mask signals to be able to wait for them... */
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sigfillset(&sigmask);
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pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
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/* unblock some signals... */
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sigemptyset(&waitmask);
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/* it is a good idea not to block SIGILL SIGSEGV */
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/* SIGFPE -- see sigaction(2) NOTES */
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sigaddset(&waitmask, SIGILL);
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sigaddset(&waitmask, SIGSEGV);
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sigaddset(&waitmask, SIGFPE);
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pthread_sigmask(SIG_UNBLOCK, &waitmask, NULL);
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log_message(LOG_LEVEL_INFO, "starting signal handling thread...");
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ret = pthread_create(&g_thread_sighandler, NULL, sig_handler_thread, "");
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pthread_detach(g_thread_sighandler);
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if (ret == 0)
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{
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log_message(LOG_LEVEL_INFO, "signal handler thread started successfully");
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return 0;
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}
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/* if something happened while starting a new thread... */
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switch (ret)
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{
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case EINVAL:
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log_message(LOG_LEVEL_ERROR, "invalid attributes for signal handling thread (creation returned EINVAL)");
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break;
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case EAGAIN:
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log_message(LOG_LEVEL_ERROR, "not enough resources to start signal handling thread (creation returned EAGAIN)");
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break;
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case EPERM:
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log_message(LOG_LEVEL_ERROR, "invalid permissions for signal handling thread (creation returned EPERM)");
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break;
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default:
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log_message(LOG_LEVEL_ERROR, "unknown error starting signal handling thread");
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}
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return 1;
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}
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#ifdef JUST_TO_AVOID_COMPILER_ERRORS
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/******************************************************************************/
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int DEFAULT_CC
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thread_session_update_start(void)
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{
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int ret;
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//starts the session update thread
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//that checks for idle time, destroys sessions, ecc...
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#warning this thread should always request lock_fork before read or write
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#warning (so we can Fork() In Peace)
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ret = pthread_create(&g_thread_updater, NULL, , "");
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pthread_detach(g_thread_updater);
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if (ret == 0)
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{
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log_message(&(g_cfg->log), LOG_LEVEL_INFO, "session update thread started successfully");
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return 0;
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}
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/* if something happened while starting a new thread... */
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switch (ret)
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{
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case EINVAL:
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log_message(LOG_LEVEL_ERROR, "invalid attributes for session update thread (creation returned EINVAL)");
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break;
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case EAGAIN:
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log_message(LOG_LEVEL_ERROR, "not enough resources to start session update thread (creation returned EAGAIN)");
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break;
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case EPERM:
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log_message(LOG_LEVEL_ERROR, "invalid permissions for session update thread (creation returned EPERM)");
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break;
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default:
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log_message(LOG_LEVEL_ERROR, "unknown error starting session update thread");
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}
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return 1;
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}
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#endif
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/******************************************************************************/
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int DEFAULT_CC
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thread_scp_start(int skt)
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{
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int ret;
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pthread_t th;
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/* blocking the use of thread_skt */
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lock_socket_acquire();
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g_thread_sck = skt;
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/* start a thread that processes a connection */
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ret = pthread_create(&th, NULL, scp_process_start, "");
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//ret = pthread_create(&th, NULL, scp_process_start, (void*) (&g_thread_sck));
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pthread_detach(th);
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if (ret == 0)
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{
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log_message(LOG_LEVEL_INFO, "scp thread on sck %d started successfully", skt);
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return 0;
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}
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/* if something happened while starting a new thread... */
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switch (ret)
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{
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case EINVAL:
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log_message(LOG_LEVEL_ERROR, "invalid attributes for scp thread on sck %d (creation returned EINVAL)", skt);
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break;
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case EAGAIN:
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log_message(LOG_LEVEL_ERROR, "not enough resources to start scp thread on sck %d (creation returned EAGAIN)", skt);
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break;
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case EPERM:
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log_message(LOG_LEVEL_ERROR, "invalid permissions for scp thread on sck %d (creation returned EPERM)", skt);
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break;
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default:
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log_message(LOG_LEVEL_ERROR, "unknown error starting scp thread on sck %d");
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}
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return 1;
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}
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@ -1,56 +0,0 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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*
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||||
* Licensed under the Apache License, Version 2.0 (the "License");
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||||
* you may not use this file except in compliance with the License.
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||||
* You may obtain a copy of the License at
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||||
*
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||||
* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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||||
* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
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* limitations under the License.
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||||
*/
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/**
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*
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* @file thread.h
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* @brief thread stuff...
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* @author Simone Fedele
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*
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*/
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#ifndef THREAD_H
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#define THREAD_H
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/**
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*
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* @brief Starts the signal handling thread
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* @retval 0 on success
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* @retval 1 on error
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*
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*/
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int DEFAULT_CC
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thread_sighandler_start(void);
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/**
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*
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* @brief Starts the session update thread
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*
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*/
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int DEFAULT_CC
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thread_session_update_start(void);
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/**
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*
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* @brief Starts a thread to handle an incoming connection
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*
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*/
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int DEFAULT_CC
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thread_scp_start(int skt);
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#endif
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Loading…
Reference in new issue