查看“BBS 会话信息”的源代码

BBS的用户相关的东西。这块非常复杂，分成好几个部分。

== UTMP ==

=== UTMPHEAD ===
<source lang="c">
struct UTMPHEAD {
    int next[USHM_SIZE];
    int hashhead[UTMP_HASHSIZE + 1];    /* use UCACHE_HASHSIZE/32 */
    int number;
    int listhead;
    int list_prev[USHM_SIZE];   /* sorted list prev ptr */
    int list_next[USHM_SIZE];   /* sorted list next ptr */
    time_t uptime;
};

static struct UTMPHEAD *utmphead;
</source>
utmphead其实指向一块shared memory，key = UTMP_SHMKEY

UTMPHEAD结构/数据由UtmpHead类处理，全都为GetXXX/SetXXX形式。

== utmp.c ==

; get_utmpshm_addr()
* Utmp.utmpshm

; longlock [(int signo)]
* inside Utmp.Lock()

; utmp_lock
* Utmp.Lock()

; utmp_unlock [(int fd)]
* Utmp.Unlock()

; utmp_setreadonly [(int readonly)]
* UtmpHead.SetReadOnly()

; detach_utmp
仅在WWW中使用。

; resolve_utmp
* Utmp.Init()

; utmp_hash [(const char *userid)]
* Utmp.Hash()

    logloop

; getnewutmpent [(struct user_info *up)]
* Utmp.GetNewUtmpEntry()

; getnewutmpent2 [(struct user_info *up)]
仅在WWW中使用。

    rebuild_list [(struct user_info *up, char *arg, int p)]
    apply_ulist [(APPLY_UTMP_FUNC fptr, void *arg)]
    apply_ulist_addr [(APPLY_UTMP_FUNC fptr, void *arg)]
    apply_utmpuid [(APPLY_UTMP_FUNC fptr, int uid, void *arg)]
    apply_utmp [(APPLY_UTMP_FUNC fptr, int maxcount,const char *userid, void *arg)]
    search_ulist [(struct user_info *uentp, int (*fptr) (int, struct user_info *), int farg)]

; clear_utmp2 [(int uent)]
* Utmp.Clear()

    clear_utmp [(int uent, int useridx, int pid)]

; get_utmp_number
* UtmpHead.GetNumber()

    get_utmpent [(int utmpnum)]
    get_utmpent_num [(struct user_info *uent)]
    cmpfuid [(const void*a,const void*b)]
    getfriendstr [(struct userec* user,struct user_info* puinfo)]
    myfriend [(int uid, char *fexp)]
    hisfriend [(int uid,struct user_info* him)]

== ucache.c ==

; ucache_lock
; ucache_unlock [(int fd)]

    ucache_hashinit
    ucache_hash_deep [(const char *userid)]
    ucache_hash [(const char *userid)]

    fillucache [(struct userec *uentp, int *number, int *prev)]
    flush_ucache
    load_ucache

; resolve_ucache
* UCache.Init()

    detach_ucache

    getuserid [(char *userid, int uid)]

    setuserid_internal [(int num, const char *userid)]
    setuserid2 [(int num, const char *userid)]
    setuserid [(int num, const char *userid)]
    searchnewuser

; searchuser [(const char *userid)]
* UCache.SearchUser()
; getuser [(const char *userid, struct userec **user)]
* UCache.GetUser()

    getuserid2 [(int uid)]
    u_namearray [(char buf[][IDLEN + 1], int *pnum, char *tag)]
    getnewuserid3 [(char *userid)]
    getnewuserid2 [(char *userid)]

; getuserbynum [(int num)]
* UCache.GetUserByUid()

    getnewuserid [(char *userid)]
    update_user [(struct userec *user, int num, int all)]
    apply_users [(int (*fptr) (struct userec *, char *), char *arg)]
    get_giveupinfo [(char* userid,int* basicperm,int s[10][2])]
    save_giveupinfo [(struct userec* lookupuser,int lcount,int s[10][2])]
    setcachehomefile [(char* path,const char* user,int unum,char* file)]
    init_cachedata [(const char* userid,int unum)]
    flush_cachedata [(const char* userid)]
    clean_cachedata [(const char* userid,int unum)]
    do_after_login [(struct userec* user,int unum,int mode)]
    do_after_logout [(struct userec* user,struct user_info* userinfo,int unum,int mode)]

=== 自定义User Title相关 ===
    load_user_title
    flush_user_title
    get_user_title [(unsigned char titleidx)]
    set_user_title [(unsigned char titleidx,char* newtitle)]

=== WWW相关 ===
    longlock [(int signo)]
    www_guest_lock
    www_guest_unlock [(int fd)]
    resolve_guest_table