int unread_position(char *dirfile, board_data_t *ptr)
{
struct fileheader fh;
char filename[STRLEN];
int fd, offset, step, num;
num = ptr->total + 1;
if (ptr->unread && (fd = open (dirfile, O_RDWR))> 0) {
if (!brc_initial (currentuser.userid, ptr->name)) {
num = 1;
} else {
offset = (int) ((char *) &(fh.filename[0]) - (char *) &(fh));
num = ptr->total - 1;
step = 4;
while (num> 0) {
lseek (fd, (off_t) (offset + num * sizeof (fh)), SEEK_SET);
if (read (fd, filename, STRLEN) <= 0 || !brc_unread (filename))
break;
num -= step;
if (step < 32)
step += step / 2;
}
if (num < 0)
num = 0;
while (num < ptr->total) {
lseek (fd, (off_t) (offset + num * sizeof (fh)), SEEK_SET);
if (read (fd, filename, STRLEN) <= 0 || brc_unread (filename))
break;
num++;
}
}
close (fd);
}
if (num < 0)
num = 0;
return num;
}
int gen_super_filter_index2(char *index, struct fileheader* fileinfo, char * boardname, int isbm) {
struct fileheader *ptr1;
struct flock ldata, ldata2;
int fd, fd2, size = sizeof(fileheader), total, i, count = 0;
char direct[PATHLEN];
char newdirect[PATHLEN];
char *ptr;
struct stat buf;
int load_content=0, found=0, load_stat=0;
int gid = fileinfo->groupid;
//TODO: 这么大的index!
load_content = (strstr(index, "content")!=NULL||strstr(index, "文章内容")!=NULL);
load_stat = (strstr(index, "asize")!=NULL||strstr(index, "总长度")!=NULL);
setbdir(DIR_MODE_NORMAL, direct, boardname);
setbdir(DIR_MODE_SUPERFITER, newdirect, boardname);
if ((fd = open(newdirect, O_WRONLY | O_CREAT, 0664)) == -1) {
bbslog("user", "%s", "recopen err");
return -9999;
}
ldata.l_type = F_WRLCK;
ldata.l_whence = 0;
ldata.l_len = 0;
ldata.l_start = 0;
if (fcntl(fd, F_SETLKW, &ldata) == -1) {
bbslog("user", "%s", "reclock err");
close(fd);
return -9999;
}
if ((fd2 = open(direct, O_RDONLY, 0664)) == -1) {
bbslog("user", "%s", "recopen err");
ldata.l_type = F_UNLCK;
fcntl(fd, F_SETLKW, &ldata);
close(fd);
return -9999;
}
fstat(fd2, &buf);
ldata2.l_type = F_RDLCK;
ldata2.l_whence = 0;
ldata2.l_len = 0;
ldata2.l_start = 0;
fcntl(fd2, F_SETLKW, &ldata2);
total = buf.st_size / size;
if ((i = safe_mmapfile_handle(fd2, PROT_READ, MAP_SHARED, (void **) &ptr, &buf.st_size)) != 1) {
if (i == 2)
end_mmapfile((void *) ptr, buf.st_size, -1);
ldata2.l_type = F_UNLCK;
fcntl(fd2, F_SETLKW, &ldata2);
close(fd2);
ldata.l_type = F_UNLCK;
fcntl(fd, F_SETLKW, &ldata);
close(fd);
return -9999;
}
ptr1 = (struct fileheader *) ptr;
libs = (char*)malloc(LIBLEN);
for (i = 0; i < total; i++) {
struct stat st;
char* p;
char ffn[80];
int j=0;
off_t fsize;
libptr = libs;
ferr = 0;
set_vard(fvars+fget_var("cid"), fileinfo->id);
set_vard(fvars+fget_var("creid"), fileinfo->reid);
set_vard(fvars+fget_var("cgroupid"), fileinfo->groupid);
set_vars(fvars+fget_var("cauthor"), fileinfo->owner);
set_vars(fvars+fget_var("cfname"), fileinfo->filename);
set_vard(fvars+fget_var("cftime"), get_posttime(fileinfo));
set_vard(fvars+fget_var("ceffsize"), fileinfo->eff_size);
set_vard(fvars+fget_var("no"), i+1); set_vard(fvars+fget_var("文章号"), i+1);
set_vard(fvars+fget_var("id"), ptr1->id);
set_vard(fvars+fget_var("reid"), ptr1->reid);
set_vard(fvars+fget_var("groupid"), ptr1->groupid);
set_vard(fvars+fget_var("thread"), ptr1->groupid==gid); set_vard(fvars+fget_var("本主题"), ptr1->groupid==gid);
set_vard(fvars+fget_var("origin"), ptr1->id==ptr1->groupid); set_vard(fvars+fget_var("原作"), ptr1->id==ptr1->groupid);
set_vard(fvars+fget_var("m"), ptr1->accessed[0]&FILE_MARKED); set_vard(fvars+fget_var("保留"), ptr1->accessed[0]&FILE_MARKED);
set_vard(fvars+fget_var("g"), ptr1->accessed[0]&FILE_DIGEST); set_vard(fvars+fget_var("文摘"), ptr1->accessed[0]&FILE_DIGEST);
set_vard(fvars+fget_var("b"), (ptr1->accessed[0]&FILE_MARKED)&&(ptr1->accessed[0]&FILE_DIGEST));
if (isbm) {
set_vard(fvars+fget_var("noreply"), ptr1->accessed[1]&FILE_READ); set_vard(fvars+fget_var("不可回复"), ptr1->accessed[1]&FILE_READ);
set_vard(fvars+fget_var("sign"), ptr1->accessed[0]&FILE_SIGN); set_vard(fvars+fget_var("标记"), ptr1->accessed[0]&FILE_SIGN);
#ifdef PERCENT_SIGN_SUPPORT
set_vard(fvars+fget_var("percent"), ptr1->accessed[0]&FILE_PERCENT); set_vard(fvars+fget_var("百分号"), ptr1->accessed[0]&FILE_PERCENT);
#endif
#ifdef FILTER
set_vard(fvars+fget_var("censor"), ptr1->accessed[1]&FILE_CENSOR); set_vard(fvars+fget_var("审核"), ptr1->accessed[1]&FILE_CENSOR);
#endif
set_vard(fvars+fget_var("del"), ptr1->accessed[1]&FILE_DEL); set_vard(fvars+fget_var("删除"), ptr1->accessed[1]&FILE_DEL);
set_vard(fvars+fget_var("import"), ptr1->accessed[0]&FILE_IMPORTED); set_vard(fvars+fget_var("精华"), ptr1->accessed[0]&FILE_IMPORTED);
}
set_vard(fvars+fget_var("attach"), ptr1->attachment); set_vard(fvars+fget_var("附件"), ptr1->attachment);
set_vars(fvars+fget_var("title"), ptr1->title); set_vars(fvars+fget_var("标题"), ptr1->title);
set_vars(fvars+fget_var("author"), ptr1->owner); set_vars(fvars+fget_var("作者"), ptr1->owner);
set_vars(fvars+fget_var("fname"), ptr1->filename); set_vars(fvars+fget_var("文件名"), ptr1->filename);
set_vard(fvars+fget_var("my"), !strcmp(ptr1->owner,getCurrentUser()->userid)); set_vard(fvars+fget_var("我的"), !strcmp(ptr1->owner,getCurrentUser()->userid));
#ifdef HAVE_BRC_CONTROL
set_vard(fvars+fget_var("unread"), brc_unread(ptr1->id, getSession())); set_vard(fvars+fget_var("未读"), brc_unread(ptr1->id, getSession()));
#endif
setbfile(ffn, boardname, ptr1->filename);
set_vard(fvars+fget_var("ftime"), get_posttime(ptr1)); set_vard(fvars+fget_var("时间"), get_posttime(ptr1));
set_vard(fvars+fget_var("effsize"), ptr1->eff_size); set_vard(fvars+fget_var("有效长度"), ptr1->eff_size);
if(load_stat) {
if(stat(ffn, &st)!=-1) {
set_vard(fvars+fget_var("asize"), st.st_size); set_vard(fvars+fget_var("总长度"), st.st_size);
}
else {
set_vard(fvars+fget_var("asize"), 0); set_vard(fvars+fget_var("总长度"), 0);
}
}
if(load_content) {
set_vars(fvars+fget_var("content"), ptr1->filename);
set_vars(fvars+fget_var("文章内容"), ptr1->filename);
j = safe_mmapfile(ffn, O_RDONLY, PROT_READ, MAP_SHARED, (void **) &p, &fsize, NULL);
if(j) {
set_vars(fvars+fget_var("content"), p);
set_vars(fvars+fget_var("文章内容"), p);
}
}
ferr=0;
feval(fvars+fget_var("res"), index, 0, strlen(index)-1);
if(ferr) break;
if(fvars[fget_var("res")].s) {
write(fd, ptr1, size);
count++;
found++;
}
if(load_content) {
if(j)
end_mmapfile((void*)p, fsize, -1);
}
ptr1++;
}
free(libs);
end_mmapfile((void *) ptr, buf.st_size, -1);
ldata2.l_type = F_UNLCK;
fcntl(fd2, F_SETLKW, &ldata2);
close(fd2);
ftruncate(fd, count * size);
ldata.l_type = F_UNLCK;
fcntl(fd, F_SETLKW, &ldata); /* 退出互斥区域*/
close(fd);
if(ferr) {
return -ferr;
}
else {
return count;
}
}
/*
* 根據 stypen 選擇上/下一篇已讀過的文章
*
* @param locmem 用來存在某看板游標位置的 structure。
* @param stypen 游標移動的方法
* CURSOR_NEXT, CURSOR_PREV:
* 與游標目前位置的文章同標題 的 下一篇/前一篇 文章。
*
* @return 新的游標位置
*/
static int
search_read(const int bid, const keeploc_t * locmem, int stypen)
{
fileheader_t fh;
int pos = locmem->crs_ln;
int rk;
int fd = -1;
int forward = (stypen & RS_FORWARD) ? 1 : 0;
time4_t ftime, result;
int ret;
int step = forward ? 1 : -1;
if( last_line <= 1 ) return pos;
/* First load the timestamp of article where cursor points to */
reload_fh:
rk = get_record_keep(currdirect, &fh, sizeof(fileheader_t), pos, &fd);
if( fd < 0 || rk < 0 ) return pos;
if( rk == 0 /* EOF */ ) {
/* 如果是置底文章, 則要將 ftime 設定成最大 (代表比最後一篇還要新) */
ftime = 2147483647;
} else {
#ifdef SAFE_ARTICLE_DELETE
if (fh.filename[0] == '.' || fh.owner[0] == '-') {
/* 游標所在文章已被刪除, 跳過, 往下找下一篇文章 */
close(fd);
pos += step;
goto reload_fh;
}
#endif
ftime = atoi( &fh.filename[2] );
}
/* given the ftime to resolve the read article */
ret = brc_search_read(bid, ftime, forward, &result );
if( ret < 0 ) {
/* No read record is found. Try to traverse from last article to
* the first until a read article is found (via brc_unread()).
* Note that this is O(n) since the brc_unread() returns at
* either (ftime <= brc_expire_time) or (bnum <= 0).
*/
int i;
for( i = last_line; i >= 0; --i ) {
rk = get_record_keep(currdirect, &fh, sizeof(fileheader_t), i, &fd);
if( fd < 0 || rk < 0) goto out;
if( 0 == brc_unread( bid, fh.filename, 0 ) ) {
pos = i;
goto out;
}
}
} else if( ret ) {
/* yes we found the read article and stored in result. */
int i;
/* find out the position for the article result */
for( i = pos; i >= 0 && i <= last_line; i += step ) {
rk = get_record_keep(currdirect, &fh, sizeof(fileheader_t), i, &fd);
if( fd < 0 || rk < 0) goto out;
#ifdef SAFE_ARTICLE_DELETE
if (fh.filename[0] == '.' || fh.owner[0] == '-') {
/* 這篇文章已被刪除, 跳過, 試試下一篇 */
continue;
}
#endif
if( atoi( &fh.filename[2] ) == result ) {
pos = i;
goto out;
}
}
}
out:
if( fd != -1 ) close(fd);
return pos;
}
