Subversion Repositories wimsdev

/*    Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

/* student score management, definitions */

#include <utime.h>

#include <sys/socket.h>

#include <sys/un.h>

#include "../Lib/libwims.h"

/* how many seconds in a minute? */

#define MINLENGTH 47

/* maximal running minutes, in order to avoid leaking */

#define MAX_MIN 300

/* queue of socket requests */

#define SOCKET_QUEUE 32

/* socket buffer length */

#define BUFFERLEN (MAX_LINELEN+sizeof(scoreresult)*MAX_CLASSEXOS)

/* number of log lines */

#define MAX_LOGLINES (102400)

/* cuttime buffer, for all exams in a class */

#define CTBUFLEN 4096

/* text buffer length in a sheet cache */

#define SHEETBUFLEN 8192

/* number of cached classes */

/* Storage requirement: about MAX_CLASSCACHE*(MAX_CLASSEXOS*10+CTBUFLEN) bytes. */

#define MAX_CLASSCACHE 20

/* number of cached sheets */

/* Storage requirement: about MAX_SHEETCACHE*SHEETBUFLEN bytes. */

#define MAX_SHEETCACHE 32

/* Refreshment rate for class caches, in seconds */

#define CLASSCACHE_DELAY 100

/* Refreshment rate for sheet caches, in seconds */

#define SHEETCACHE_DELAY 50

/* Maximal debug file length. Debug will be activated once the debug file exists. */

#define MAX_DEBUGLENGTH 1000000

/* delay before ins files are erased. In seconds */

#define INS_DELAY 500

#define evalue strevalue

#define tmpd "tmp/log"

#define classd "log/classes"

#define sesd "sessions"

#define modd "public_html/modules"

#define logd "log"

#define pidfile "tmp/log/wimslogd.pid"

#define sockfile "tmp/log/.wimslogd"

#define debugfile "tmp/log/wimslogd.debug"

/* from cache.c */

typedef struct exodata {

    int active;

    float weight, require;

} exodata; /* General information of an exercise. Size: 10 bytes. */

typedef struct sheetdata {

    unsigned short int start, indstart, exocnt, techcnt, techval, techoffset;

} sheetdata; /* General information of a sheet. Size: xx bytes. */

extern struct classdata {

    char name[MAX_CLASSLEN+1];

    char sclass[MAX_CLASSLEN+1];

    char techs[MAX_LINELEN];

    time_t start, last, modif;

    int sheetcnt, exocnt, examcnt, examstart, access;

    struct exodata exos[MAX_CLASSEXOS];

    char ctbuf[CTBUFLEN];

    short int ctptr[MAX_EXOS];

    struct sheetdata exam, sheets[MAX_SHEETS+1];

} classdata[MAX_CLASSCACHE];

int search_data(void *list, int items, size_t item_size, unsigned short int t);

struct classdata *getclasscache(char *cl);

extern char opt_class[MAX_CLASSLEN+1];

extern char **environ;

extern int classcaches, sheetcaches;

void cleancache(void);

/* from cleaning.c */

void cleaning(int withmain); /* Clean obsolete session directories. */

/* from cmd.c */

extern struct cmdlist {

    char *name;

    void (*routine) (char *p);

} cmdlist[];

extern int cmdcnt;

/* from homedir.c */

void homedir(void);

/* from housekeep.c */

void backup(void);

void housekeep(void);

void modupdate(void); /* module update */

/* from options.c */

extern int options(void);

extern char opt_user[MAX_FNAME+1];

void cmd(void);

/* from wimslogdscore.c */

void cmd_getscore(char *p);

void cmd_scorelog(char *p);

/* from socket.c */

void sockerror(int type, char *p,...);

void opensock(void);

void answer(int fh);

/* from wimslogd.c */

extern char cwd[MAX_FNAME+1];

extern int cwdtype;

enum {dir_home, dir_class, dir_session, dir_module};

extern char qbuf[MAX_LINELEN+1]; /* quota buffer */

extern char ipbuf[64];

extern char loadavg[MAX_LINELEN+1]; /* dans wims.h extern char loadavg[64];*/

extern time_t nowtime, lastcleantime;

extern int idle_time, idle_time2, idle_time3, anti_time;

extern char keepdate[32];

extern char nowstr[64];

extern char mupdate[32], backdate[32];

extern int GEN_LOG_LIMIT, MODULE_LOG_LIMIT, OLD_LOG_FILES, LOG_DELETE;

/* from fork.c */

extern int forkcnt;

void addfork(pid_t pid, int type);

void forkman(int kz);

void wait_children(void);

void dispatch_log(void);

/*from files.c */

void readfile(char *fname, char buf[], long int buflen); /* read the content of a file */

/* datafile structure: number of records.

 * tag=1 if direct access

 */

unsigned int datafile_recordnum(char *p);

char *datafile_fnd_record(char *p, int n, char bf[]); /* datafile structure: find record n, starting from 1 */

int ftest(char *fname);

enum{is_file, is_dir, is_exec, is_fifo, is_socket, is_unknown};

/* from wimslogdlines.c */

void wimslogd_error(char *msg);

extern int commsock, answerlen, debugging;

extern char commbuf[BUFFERLEN+1];

#define textbuf (commbuf+sizeof(int))

void debug(char *p,...);

void my_debug(char *p,...);

extern char *textptr;

void wlogdaccessfile(char *content, char *type, char *s,...);

int call_ssh(int wait,char *s,...);

int call_sh(int wait,char *s,...);

extern int exec_wait;

void getdef(char *fname, char *name, char value[]);