swad-core/swad_global.c

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2014-12-01 23:55:08 +01:00
// swad_global.c: global variables
/*
SWAD (Shared Workspace At a Distance),
is a web platform developed at the University of Granada (Spain),
and used to support university teaching.
This file is part of SWAD core.
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Copyright (C) 1999-2016 Antonio Ca<EFBFBD>as Vargas
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This program 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 of the
License, or (at your option) any later version.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/********************************* Headers ***********************************/
/*****************************************************************************/
#include <locale.h> // For setlocale
#include <limits.h> // For INT_MAX, LONG_MAX
#include <linux/stddef.h> // For NULL
#include <stdlib.h> // For exit, system, malloc, calloc, free, etc
#include <string.h> // For string functions
#include <sys/time.h> // For gettimeofday
#include <sys/types.h> // For getpid
#include <unistd.h> // For getpid
#include "swad_action.h"
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#include "swad_calendar.h"
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#include "swad_config.h"
#include "swad_constant.h"
#include "swad_exam.h"
#include "swad_global.h"
#include "swad_icon.h"
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#include "swad_parameter.h"
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#include "swad_preference.h"
#include "swad_theme.h"
#include "swad_web_service.h"
/*****************************************************************************/
/****************************** Public variables *****************************/
/*****************************************************************************/
struct Globals Gbl; // All the global parameters and variables must be in this structure
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private constants *****************************/
/*****************************************************************************/
/*****************************************************************************/
/******************************* Private types *******************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private variables *****************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
/*****************************************************************************/
/************* Intialize globals variables when starting program *************/
/*****************************************************************************/
void Gbl_InitializeGlobals (void)
{
extern const char *The_ThemeId[The_NUM_THEMES];
extern const char *Ico_IconSetId[Ico_NUM_ICON_SETS];
extern const unsigned Txt_Current_CGI_SWAD_Language;
Txt_Language_t Lan;
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setlocale (LC_ALL,"es_ES.utf8");
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gettimeofday (&Gbl.tvStart, &Gbl.tz);
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Dat_GetStartExecutionTimeUTC ();
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Dat_GetAndConvertCurrentDateTime ();
Gbl.Config.DatabasePassword[0] = '\0';
Gbl.Config.SMTPPassword[0] = '\0';
Gbl.TimeGenerationInMicroseconds = Gbl.TimeSendInMicroseconds = 0L;
Gbl.PID = getpid ();
Sta_GetRemoteAddr ();
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Cry_CreateUniqueNameEncrypted (Gbl.UniqueNameEncrypted);
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srand ((unsigned int) Gbl.StartExecutionTimeUTC); // Initialize seed for rand()
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Gbl.WebService.IsWebService = false;
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Gbl.Params.ContentLength = 0;
Gbl.Params.QueryString = NULL;
Gbl.Params.List = NULL;
Gbl.Params.GetMethod = false;
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Gbl.F.Out = stdout;
Gbl.F.Tmp = NULL;
Gbl.F.XML = NULL;
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Gbl.Form.Num = -1; // Number of form. It's increased by 1 at the begin of each form
Gbl.Form.Inside = false; // Set to true inside a form to avoid nested forms
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Gbl.Error = false;
Gbl.Layout.WritingHTMLStart =
Gbl.Layout.HTMLStartWritten =
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Gbl.Layout.DivsEndWritten =
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Gbl.Layout.HTMLEndWritten = false;
Gbl.DB.DatabaseIsOpen = false;
Gbl.DB.LockedTables = false;
Gbl.HiddenParamsInsertedIntoDB = false;
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Gbl.Prefs.Language = Txt_Current_CGI_SWAD_Language;
Gbl.Prefs.FirstDayOfWeek = Cal_FIRST_DAY_OF_WEEK_DEFAULT; // Default first day of week
Gbl.Prefs.Menu = Mnu_MENU_DEFAULT; // Default menu
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Gbl.Prefs.Theme = The_THEME_DEFAULT; // Default theme
Gbl.Prefs.IconSet = Ico_ICON_SET_DEFAULT; // Default icon set
sprintf (Gbl.Prefs.IconsURL,"%s/%s",
Cfg_HTTPS_URL_SWAD_PUBLIC,Cfg_FOLDER_PUBLIC_ICON);
sprintf (Gbl.Prefs.PathTheme,"%s/%s/%s",
Gbl.Prefs.IconsURL,
Cfg_ICON_FOLDER_THEMES,
The_ThemeId[Gbl.Prefs.Theme]);
sprintf (Gbl.Prefs.PathIconSet,"%s/%s/%s",
Gbl.Prefs.IconsURL,Cfg_ICON_FOLDER_ICON_SETS,
Ico_IconSetId[Gbl.Prefs.IconSet]);
Gbl.Session.NumSessions = 0;
Gbl.Session.IsOpen = false;
Gbl.Session.HasBeenDisconnected = false;
Gbl.YearOK = false;
Gbl.Usrs.Me.UsrIdLogin[0] = '\0';
Gbl.Usrs.Me.LoginPlainPassword[0] = '\0';
Gbl.Usrs.Me.UsrDat.UsrCod = -1L;
Gbl.Usrs.Me.UsrDat.UsrIDNickOrEmail[0] = '\0';
Usr_UsrDataConstructor (&Gbl.Usrs.Me.UsrDat);
Usr_ResetMyLastData ();
Gbl.Session.Id[0] = '\0';
Gbl.Usrs.Me.Logged = false;
Gbl.Usrs.Me.AvailableRoles = 0;
Gbl.Usrs.Me.RoleFromSession =
Gbl.Usrs.Me.LoggedRole =
Gbl.Usrs.Me.LoggedRoleBeforeCloseSession =
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Gbl.Usrs.Me.MaxRole = Rol_UNKNOWN;
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Gbl.Usrs.Me.IBelongToCurrentIns = false;
Gbl.Usrs.Me.IBelongToCurrentCtr = false;
Gbl.Usrs.Me.IBelongToCurrentDeg = false;
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Gbl.Usrs.Me.IBelongToCurrentCrs = false;
Gbl.Usrs.Me.MyPhotoExists = false;
Gbl.Usrs.Me.NumAccWithoutPhoto = 0;
Gbl.Usrs.Me.TimeLastAccToThisFileBrowser = LONG_MAX; // Initialized to a big value, so by default files are not shown as recent or new
Gbl.Usrs.Me.MyInstitutions.Filled = false;
Gbl.Usrs.Me.MyCentres.Filled = false;
Gbl.Usrs.Me.MyDegrees.Filled = false;
Gbl.Usrs.Me.MyCourses.Filled = false;
Gbl.Usrs.Me.MyCourses.Num = 0;
Gbl.Usrs.Me.MyAdminDegs.Num = 0;
Gbl.Usrs.Me.MyAdminDegs.Lst = NULL;
Gbl.Usrs.Other.UsrDat.UsrCod = -1L;
Gbl.Usrs.Other.UsrDat.UsrIDNickOrEmail[0] = '\0';
Usr_UsrDataConstructor (&Gbl.Usrs.Other.UsrDat);
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Gbl.Action.Act = ActUnk;
Gbl.Action.UsesAJAX = false;
Gbl.Action.Tab = TabUnk;
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Gbl.Usrs.LstGsts.NumUsrs = 0;
Gbl.Usrs.LstGsts.Lst = NULL;
Gbl.Usrs.LstStds.NumUsrs = 0;
Gbl.Usrs.LstStds.Lst = NULL;
Gbl.Usrs.LstTchs.NumUsrs = 0;
Gbl.Usrs.LstTchs.Lst = NULL;
Gbl.Usrs.LstAdms.NumUsrs = 0;
Gbl.Usrs.LstAdms.Lst = NULL;
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Gbl.ExamAnnouncements.NumExaAnns = 0;
Gbl.ExamAnnouncements.Lst = NULL;
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Gbl.ExamAnnouncements.HighlightExaCod = -1L;
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Gbl.ExamAnnouncements.HighlightDate[0] = '\0'; // No exam announcements highlighted
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Gbl.Usrs.Select.All =
Gbl.Usrs.Select.Std =
Gbl.Usrs.Select.Tch =
Gbl.Usrs.ListOtherRecipients = NULL;
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Gbl.Msg.Subject[0] = '\0';
Gbl.Msg.ShowOnlyUnreadMsgs = false;
Gbl.Msg.ExpandedMsgCod = -1L;
Gbl.Pag.CurrentPage = 1; // By default, go to the first page
Gbl.CurrentCty.Cty.CtyCod = -1L;
Gbl.CurrentIns.Ins.InsCod = -1L; // Unknown institution
Gbl.CurrentIns.Ins.ShortName[0] = '\0';
Gbl.CurrentIns.Ins.FullName[0] = '\0';
Gbl.CurrentIns.Ins.WWW[0] = '\0';
Gbl.CurrentIns.Ins.NumCtrs = Gbl.CurrentIns.Ins.NumDpts = Gbl.CurrentIns.Ins.NumDegs = 0;
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Gbl.CurrentIns.Ins.NumUsrs = 0;
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Gbl.CurrentCtr.Ctr.CtrCod = -1L;
Gbl.CurrentCtr.Ctr.InsCod = -1L;
Gbl.CurrentCtr.Ctr.PlcCod = -1L;
Gbl.CurrentCtr.Ctr.ShortName[0] = '\0';
Gbl.CurrentCtr.Ctr.FullName[0] = '\0';
Gbl.CurrentDegTyp.DegTyp.DegTypCod = -1L;
Gbl.CurrentDegTyp.DegTyp.DegTypName[0] = '\0';
Gbl.CurrentDeg.Deg.DegCod = -1L;
Gbl.CurrentDeg.Deg.ShortName[0] = Gbl.CurrentDeg.Deg.FullName[0] = '\0';
Gbl.CurrentCrs.Crs.CrsCod = -1L;
Gbl.CurrentCrs.Crs.ShortName[0] = Gbl.CurrentCrs.Crs.FullName[0] = '\0';
Gbl.CurrentCrs.Info.ShowMsgMustBeRead = 0;
Gbl.CurrentCrs.Notices.HighlightNotCod = -1L; // No notice highlighted
Gbl.Inss.Num = 0;
Gbl.Inss.Lst = NULL;
Gbl.Inss.SelectedOrderType = Ins_DEFAULT_ORDER_TYPE;
Gbl.Inss.EditingIns.InsCod = -1L;
Gbl.Inss.EditingIns.CtyCod = -1L;
Gbl.Inss.EditingIns.ShortName[0] = '\0';
Gbl.Inss.EditingIns.FullName[0] = '\0';
Gbl.Inss.EditingIns.WWW[0] = '\0';
Gbl.Inss.EditingIns.NumCtrs = Gbl.Inss.EditingIns.NumDpts = Gbl.Inss.EditingIns.NumDegs = 0;
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Gbl.Inss.EditingIns.NumUsrs = 0;
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Gbl.Ctys.Num = 0;
Gbl.Ctys.Lst = NULL;
Gbl.Ctys.SelectedOrderType = Cty_DEFAULT_ORDER_TYPE;
Gbl.Ctys.EditingCty.CtyCod = -1L;
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for (Lan = (Txt_Language_t) 1;
Lan <= Txt_NUM_LANGUAGES;
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Lan++)
Gbl.Ctys.EditingCty.Name[Lan][0] = '\0';
Gbl.Ctrs.Num = 0;
Gbl.Ctrs.Lst = NULL;
Gbl.Ctrs.SelectedOrderType = Ctr_DEFAULT_ORDER_TYPE;
Gbl.Ctrs.EditingCtr.CtrCod = -1L;
Gbl.Ctrs.EditingCtr.InsCod = -1L;
Gbl.Ctrs.EditingCtr.CtrCod = -1L;
Gbl.Ctrs.EditingCtr.ShortName[0] = '\0';
Gbl.Ctrs.EditingCtr.FullName[0] = '\0';
Gbl.Ctrs.EditingCtr.WWW[0] = '\0';
Gbl.Dpts.Num = 0;
Gbl.Dpts.Lst = NULL;
Gbl.Dpts.SelectedOrderType = Dpt_DEFAULT_ORDER_TYPE;
Gbl.Dpts.EditingDpt.DptCod = -1L;
Gbl.Dpts.EditingDpt.ShortName[0] = '\0';
Gbl.Dpts.EditingDpt.FullName[0] = '\0';
Gbl.Dpts.EditingDpt.WWW[0] = '\0';
Gbl.Plcs.Num = 0;
Gbl.Plcs.Lst = NULL;
Gbl.Plcs.SelectedOrderType = Plc_DEFAULT_ORDER_TYPE;
Gbl.Plcs.EditingPlc.PlcCod = -1L;
Gbl.Plcs.EditingPlc.ShortName[0] = '\0';
Gbl.Plcs.EditingPlc.FullName[0] = '\0';
Gbl.Hlds.LstIsRead = false; // List is not read
Gbl.Hlds.Num = 0;
Gbl.Hlds.Lst = NULL;
Gbl.Hlds.SelectedOrderType = Hld_DEFAULT_ORDER_TYPE;
Gbl.Hlds.EditingHld.HldCod = -1L;
Gbl.Hlds.EditingHld.PlcCod = -1L;
Gbl.Hlds.EditingHld.HldTyp = Hld_HOLIDAY;
Gbl.Hlds.EditingHld.StartDate.Year = Gbl.Hlds.EditingHld.EndDate.Year = Gbl.Now.Date.Year;
Gbl.Hlds.EditingHld.StartDate.Month = Gbl.Hlds.EditingHld.EndDate.Month = Gbl.Now.Date.Month;
Gbl.Hlds.EditingHld.StartDate.Day = Gbl.Hlds.EditingHld.EndDate.Day = Gbl.Now.Date.Day;
Gbl.Hlds.EditingHld.Name[0] = '\0';
Gbl.Degs.DegTypes.Num = 0;
Gbl.Degs.DegTypes.Lst = NULL;
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Gbl.Degs.EditingDegTyp.DegTypCod = -1L;
Gbl.Degs.EditingDegTyp.DegTypName[0] = '\0';
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Gbl.Degs.EditingDeg.DegCod = -1L;
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Gbl.Degs.EditingDeg.ShortName[0] = '\0';
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Gbl.Degs.EditingDeg.FullName[0] = '\0';
Gbl.Degs.EditingDeg.WWW[0] = '\0';
Gbl.Degs.EditingDeg.LstCrss = NULL;
Gbl.Degs.EditingCrs.CrsCod = -1L;
Gbl.Degs.EditingCrs.DegCod = -1L;
Gbl.Degs.EditingCrs.Year = 0;
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Gbl.Degs.EditingCrs.ShortName[0] = '\0';
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Gbl.Degs.EditingCrs.FullName[0] = '\0';
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Gbl.CurrentCrs.Grps.NumGrps = 0;
Gbl.CurrentCrs.Grps.WhichGrps = Grp_ALL_GROUPS;
Gbl.CurrentCrs.Grps.GrpTypes.LstGrpTypes = NULL;
Gbl.CurrentCrs.Grps.GrpTypes.Num = 0;
Gbl.CurrentCrs.Grps.GrpTypes.NestedCalls = 0;
Gbl.CurrentCrs.Grps.GrpTyp.GrpTypName[0] = '\0';
Gbl.CurrentCrs.Grps.GrpTyp.MandatoryEnrollment = true;
Gbl.CurrentCrs.Grps.GrpTyp.MultipleEnrollment = false;
Gbl.CurrentCrs.Grps.GrpTyp.MustBeOpened = false;
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Gbl.CurrentCrs.Grps.GrpTyp.OpenTimeUTC = (time_t) 0;
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Gbl.CurrentCrs.Grps.GrpCod = -1L; // -1L stands for the whole course
Gbl.CurrentCrs.Grps.GrpName[0] = '\0';
Gbl.CurrentCrs.Grps.MaxStudents = INT_MAX;
Gbl.CurrentCrs.Grps.Open = false;
Gbl.CurrentCrs.Grps.LstGrpsSel.GrpCod = NULL;
Gbl.CurrentCrs.Grps.LstGrpsSel.NumGrps = 0;
Gbl.CurrentCrs.Grps.LstGrpsSel.NestedCalls = 0;
Gbl.Usrs.ClassPhoto.AllGroups = true;
Gbl.CurrentCrs.Records.Field.Name[0] = '\0';
Gbl.CurrentCrs.Records.Field.NumLines = Rec_MIN_LINES_IN_EDITION_FIELD;
Gbl.CurrentCrs.Records.Field.Visibility = Rec_HIDDEN_FIELD;
Gbl.CurrentCrs.Records.LstFields.Lst = NULL;
Gbl.CurrentCrs.Records.LstFields.Num = 0;
Gbl.CurrentCrs.Records.LstFields.NestedCalls = 0;
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Gbl.Syllabus.EditionIsActive = false;
Gbl.Syllabus.WhichSyllabus = Syl_DEFAULT_WHICH_SYLLABUS;
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Gbl.Search.WhatToSearch = Sch_SEARCH_ALL;
Gbl.Search.Str[0] = '\0';
Gbl.Asgs.LstIsRead = false; // List is not read
Gbl.Asgs.Num = 0;
Gbl.Asgs.LstAsgCods = NULL;
Gbl.Asgs.SelectedOrderType = Asg_DEFAULT_ORDER_TYPE;
Gbl.AttEvents.LstIsRead = false; // List is not read
Gbl.AttEvents.Num = 0;
Gbl.AttEvents.Lst = NULL;
Gbl.AttEvents.SelectedOrderType = Att_DEFAULT_ORDER_TYPE;
Gbl.AttEvents.AttCod = -1L;
Gbl.Mails.Num = 0;
Gbl.Mails.Lst = NULL;
Gbl.Mails.SelectedOrderType = Mai_DEFAULT_ORDER_TYPE;
Gbl.Banners.Num = 0;
Gbl.Banners.Lst = NULL;
Gbl.Banners.EditingBan.BanCod = -1L;
Gbl.Banners.EditingBan.ShortName[0] = '\0';
Gbl.Banners.EditingBan.FullName[0] = '\0';
Gbl.Banners.EditingBan.WWW[0] = '\0';
Gbl.Banners.BanCodClicked = 0L;
Gbl.Links.Num = 0;
Gbl.Links.Lst = NULL;
Gbl.Links.EditingLnk.LnkCod = -1L;
Gbl.Links.EditingLnk.ShortName[0] = '\0';
Gbl.Links.EditingLnk.FullName[0] = '\0';
Gbl.Links.EditingLnk.WWW[0] = '\0';
Gbl.Usrs.Listing.RecsUsrs = Rec_RECORD_USERS_UNKNOWN;
Gbl.Usrs.Listing.RecsPerPag = 1;
Gbl.Usrs.Listing.WithPhotos = true;
Gbl.Usrs.ClassPhoto.Cols = Usr_CLASS_PHOTO_COLS_DEF;
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/* Statistics */
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Gbl.Stat.ClicksGroupedBy = Sta_CLICKS_CRS_PER_USR;
Gbl.Stat.CountType = Sta_TOTAL_CLICKS;
Gbl.Stat.Role = Sta_IDENTIFIED_USRS;
Gbl.Stat.NumAction = ActAll;
Gbl.Stat.RowsPerPage = 50;
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Gbl.Stat.FigureType = Sta_USERS;
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Gbl.Scope.Current = Sco_SCOPE_CRS;
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Gbl.Usrs.Connected.TimeToRefreshInMs = Con_MAX_TIME_TO_REFRESH_CONNECTED_IN_MS;
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/* Tests */
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Gbl.Test.Config.Pluggable = Tst_PLUGGABLE_UNKNOWN;
Gbl.Test.NumQsts = Tst_CONFIG_DEFAULT_DEF_QUESTIONS;
Gbl.Test.AllowTeachers = false; // Must the exam be saved?
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Gbl.Test.AllAnsTypes = false;
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Gbl.Test.ListAnsTypes[0] = '\0';
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Gbl.Test.Tags.Num = 0;
Gbl.Test.Tags.All = false;
Gbl.Test.Tags.List = NULL;
/* Forums */
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Gbl.Forum.ForumType = (For_ForumType_t) 0;
Gbl.Forum.WhichForums = For_DEFAULT_WHICH_FORUMS;
Gbl.Forum.SelectedOrderType = For_DEFAULT_ORDER;
Gbl.Forum.ThreadToMove = -1L;
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/* User nickname */
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Gbl.Usrs.Me.UsrDat.Nickname[0] = '\0';
/* File browser */
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Gbl.FileBrowser.Id = 0;
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Gbl.FileBrowser.Type = Brw_UNKNOWN;
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Gbl.FileBrowser.FileType = Brw_IS_UNKNOWN;
Gbl.FileBrowser.UploadingWithDropzone = false;
/* To alternate colors where listing rows */
Gbl.RowEvenOdd = 0;
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Gbl.ColorRows[0] = "COLOR0"; // Darker
Gbl.ColorRows[1] = "COLOR1"; // Lighter
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/* Imported data from external site */
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Gbl.Imported.ExternalUsrId[0] = '\0';
Gbl.Imported.ExternalSesId[0] = '\0';
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Gbl.Imported.ExternalRole = Rol_UNKNOWN;
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Gbl.WebService.Function = Svc_unknown;
}
/*****************************************************************************/
/************* Free memory, close files, remove lock file, etc. **************/
/*****************************************************************************/
void Gbl_Cleanup (void)
{
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extern struct Act_Actions Act_Actions[Act_NUM_ACTIONS];
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if (!Gbl.Action.UsesAJAX &&
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!Gbl.WebService.IsWebService &&
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Act_Actions[Gbl.Action.Act].BrowserWindow == Act_MAIN_WINDOW &&
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!Gbl.HiddenParamsInsertedIntoDB)
Ses_RemoveHiddenParFromThisSession ();
Usr_UsrDataDestructor (&Gbl.Usrs.Me.UsrDat);
Usr_UsrDataDestructor (&Gbl.Usrs.Other.UsrDat);
Rec_FreeListFields ();
Grp_FreeListGrpTypesAndGrps ();
Grp_FreeListCodSelectedGrps ();
Crs_FreeListCoursesInDegree (&Gbl.Degs.EditingDeg);
Deg_FreeListMyAdminDegs ();
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DT_FreeListDegreeTypes ();
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Ins_FreeListInstitutions ();
Ctr_FreeListCentres ();
Cty_FreeListCountries ();
Dpt_FreeListDepartments ();
Plc_FreeListPlaces ();
Hld_FreeListHolidays ();
Lnk_FreeListLinks ();
Plg_FreeListPlugins ();
Usr_FreeUsrsList (&Gbl.Usrs.LstAdms);
Usr_FreeUsrsList (&Gbl.Usrs.LstTchs);
Usr_FreeUsrsList (&Gbl.Usrs.LstStds);
Usr_FreeListOtherRecipients ();
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Usr_FreeListsSelectedUsrCods ();
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Syl_FreeListItemsSyllabus ();
Tst_FreeTagsList ();
Exa_FreeMemExamAnnouncement ();
Exa_FreeListExamAnnouncements ();
if (Gbl.F.Tmp)
fclose (Gbl.F.Tmp);
Fil_CloseXMLFile ();
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Par_FreeParams ();
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}