diff options
Diffstat (limited to 'mbbsd/cache.c')
| -rw-r--r-- | mbbsd/cache.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/mbbsd/cache.c b/mbbsd/cache.c index a1088160..c78dbed4 100644 --- a/mbbsd/cache.c +++ b/mbbsd/cache.c @@ -500,11 +500,15 @@ cmpboardclass(boardheader_t ** brd, boardheader_t ** tmp) strcasecmp((*brd)->brdname, (*tmp)->brdname); } -static void +void sort_bcache(void) { int i; - /* critical section 不能單獨呼叫 呼叫reload_bcache or reset_board */ + /* critical section 盡量不要呼叫 */ + /* 只有新增 或移除看板 需要呼叫到 */ + if(SHM->Bbusystate) + { sleep(1); return; } + SHM->Bbusystate = 1; for (i = 0; i < SHM->Bnumber; i++) { SHM->bsorted[1][i] = SHM->bsorted[0][i] = &bcache[i]; } @@ -512,6 +516,12 @@ sort_bcache(void) (QCAST) cmpboardname); qsort(SHM->bsorted[1], SHM->Bnumber, sizeof(boardheader_t *), (QCAST) cmpboardclass); + + for (i = 0; i < SHM->Bnumber; i++) { + bcache[i].firstchild[0] = NULL; + bcache[i].firstchild[1] = NULL; + } + SHM->Bbusystate = 0; } void @@ -521,7 +531,7 @@ reload_bcache(void) safe_sleep(1); } else { - int fd, i; + int fd; SHM->Bbusystate = 1; if ((fd = open(fn_board, O_RDONLY)) > 0) { @@ -534,12 +544,8 @@ reload_bcache(void) /* 等所有 boards 資料更新後再設定 uptime */ SHM->Buptime = SHM->Btouchtime; log_usies("CACHE", "reload bcache"); - sort_bcache(); - for (i = 0; i < SHM->Bnumber; ++i) { - bcache[i].firstchild[0] = NULL; - bcache[i].firstchild[1] = NULL; - } SHM->Bbusystate = 0; + sort_bcache(); } } @@ -567,7 +573,7 @@ void addbrd_touchcache(void) void reset_board(int bid) /* XXXbid: from 1 */ { /* Ptt: 這樣就不用老是touch board了 */ - int fd, i, nuser; + int fd, nuser; boardheader_t *bhdr; if (--bid < 0) @@ -585,11 +591,6 @@ reset_board(int bid) /* XXXbid: from 1 */ read(fd, bhdr, sizeof(boardheader_t)); close(fd); } - sort_bcache(); - for (i = 0; i < SHM->Bnumber; i++) { - bcache[i].firstchild[0] = NULL; - bcache[i].firstchild[1] = NULL; - } SHM->busystate_b[bid] = 0; buildBMcache(bid + 1); /* XXXbid */ |