xrdp/sesman/sesexec/session.h

137 lines
3.2 KiB
C

/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2013
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*
* @file session.h
* @brief Session management definitions
* @author Jay Sorg, Simone Fedele
*
*/
#ifndef SESSION_H
#define SESSION_H
#include <time.h>
#include "guid.h"
#include "scp_application_types.h"
#include "xrdp_constants.h"
struct login_info;
struct proc_exit_status;
/**
* Information used to start a session
*/
struct session_parameters
{
unsigned int display;
enum scp_session_type type;
unsigned short width;
unsigned short height;
unsigned char bpp;
struct guid guid;
const char *shell; // Must not be NULL
const char *directory; // Must not be NULL
};
/**
* Data involved in running a session (opaque type)
*
* Allocate with session_start() and free with
* session_data_free() once session_active() returns zero.
*/
struct session_data;
/**
*
* @brief starts a session
*
* @param login_info info for logged in user
* @param s Session parameters
* @param[out] session_data Pointer to session data for the session
*
* session_data is only set if E_SCP_CREATE_OK is returned
* @return status
*/
enum scp_screate_status
session_start(struct login_info *login_info,
const struct session_parameters *s,
struct session_data **session_data);
/**
* Processes an exited child process
*
* The PID of the child process is removed from the session_data.
*
* @param sd session_data for this session
* @param pid PID of exited process
* @param e Exit status of the exited process
*/
void
session_process_child_exit(struct session_data *sd,
int pid,
const struct proc_exit_status *e);
/**
* Returns a count of active processes in the session
*
* @param sd session_data for this session
*/
unsigned int
session_active(const struct session_data *sd);
/**
* Returns the start time for an active session
*
* @param sd session_data for this session
*/
time_t
session_get_start_time(const struct session_data *sd);
/***
* Ask a session to terminate by signalling the window manager
*
* @param sd session_data for this session
*/
void
session_send_term(struct session_data *sd);
/**
* Frees a session_data object
*
* @param sd session_data for this session
*
* Do not call this until session_active() returns zero, or you
* lose the ability to track the session PIDs
*/
void
session_data_free(struct session_data *session_data);
/**
* Runs the reconnect script for the session
*/
void
session_reconnect(struct login_info *login_info,
struct session_data *sd);
#endif // SESSION_H