| 26 |
#include <sys/sem.h> |
#include <sys/sem.h> |
| 27 |
#include <sys/shm.h> |
#include <sys/shm.h> |
| 28 |
|
|
| 29 |
#ifdef _SEM_SEMUN_UNDEFINED |
#if defined(_SEM_SEMUN_UNDEFINED) || defined(__MSYS__) || defined(__MINGW32__) |
| 30 |
union semun |
union semun |
| 31 |
{ |
{ |
| 32 |
int val; /* Value for SETVAL */ |
int val; /* Value for SETVAL */ |
| 35 |
struct seminfo *__buf; /* Buffer for IPC_INFO |
struct seminfo *__buf; /* Buffer for IPC_INFO |
| 36 |
(Linux-specific) */ |
(Linux-specific) */ |
| 37 |
}; |
}; |
| 38 |
#endif // #ifdef _SEM_SEMUN_UNDEFINED |
#endif // #if defined(_SEM_SEMUN_UNDEFINED) |
| 39 |
|
|
| 40 |
enum _user_list_constant_t |
enum _user_list_constant_t |
| 41 |
{ |
{ |
| 531 |
shmid = p_user_list_pool->shmid; |
shmid = p_user_list_pool->shmid; |
| 532 |
|
|
| 533 |
// Remap shared memory in read-only mode |
// Remap shared memory in read-only mode |
| 534 |
|
#if defined(__MSYS__) || defined(__MINGW32__) |
| 535 |
|
if (shmdt(p_user_list_pool) == -1) |
| 536 |
|
{ |
| 537 |
|
log_error("shmdt(user_list_pool) error (%d)\n", errno); |
| 538 |
|
return -1; |
| 539 |
|
} |
| 540 |
|
p_shm = shmat(shmid, p_user_list_pool, SHM_RDONLY); |
| 541 |
|
#else |
| 542 |
p_shm = shmat(shmid, p_user_list_pool, SHM_RDONLY | SHM_REMAP); |
p_shm = shmat(shmid, p_user_list_pool, SHM_RDONLY | SHM_REMAP); |
| 543 |
|
#endif |
| 544 |
if (p_shm == (void *)-1) |
if (p_shm == (void *)-1) |
| 545 |
{ |
{ |
| 546 |
log_error("shmat(user_list_pool shmid = %d) error (%d)\n", shmid, errno); |
log_error("shmat(user_list_pool shmid = %d) error (%d)\n", shmid, errno); |
| 652 |
int user_list_try_rd_lock(int semid, int wait_sec) |
int user_list_try_rd_lock(int semid, int wait_sec) |
| 653 |
{ |
{ |
| 654 |
struct sembuf sops[2]; |
struct sembuf sops[2]; |
| 655 |
|
#if !defined(__MSYS__) && !defined(__MINGW32__) |
| 656 |
struct timespec timeout; |
struct timespec timeout; |
| 657 |
|
#endif |
| 658 |
int ret; |
int ret; |
| 659 |
|
|
| 660 |
sops[0].sem_num = 1; // w_sem |
sops[0].sem_num = 1; // w_sem |
| 665 |
sops[1].sem_op = 1; // lock |
sops[1].sem_op = 1; // lock |
| 666 |
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
sops[1].sem_flg = SEM_UNDO; // undo on terminate |
| 667 |
|
|
| 668 |
|
#if defined(__MSYS__) || defined(__MINGW32__) |
| 669 |
|
ret = semop(semid, sops, 2); |
| 670 |
|
#else |
| 671 |
timeout.tv_sec = wait_sec; |
timeout.tv_sec = wait_sec; |
| 672 |
timeout.tv_nsec = 0; |
timeout.tv_nsec = 0; |
| 673 |
|
|
| 674 |
ret = semtimedop(semid, sops, 2, &timeout); |
ret = semtimedop(semid, sops, 2, &timeout); |
| 675 |
|
#endif |
| 676 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 677 |
{ |
{ |
| 678 |
log_error("semtimedop(lock read) error %d\n", errno); |
log_error("semop(lock read) error %d\n", errno); |
| 679 |
} |
} |
| 680 |
|
|
| 681 |
return ret; |
return ret; |
| 684 |
int user_list_try_rw_lock(int semid, int wait_sec) |
int user_list_try_rw_lock(int semid, int wait_sec) |
| 685 |
{ |
{ |
| 686 |
struct sembuf sops[3]; |
struct sembuf sops[3]; |
| 687 |
|
#if !defined(__MSYS__) && !defined(__MINGW32__) |
| 688 |
struct timespec timeout; |
struct timespec timeout; |
| 689 |
|
#endif |
| 690 |
int ret; |
int ret; |
| 691 |
|
|
| 692 |
sops[0].sem_num = 1; // w_sem |
sops[0].sem_num = 1; // w_sem |
| 701 |
sops[2].sem_op = 0; // wait until unlocked |
sops[2].sem_op = 0; // wait until unlocked |
| 702 |
sops[2].sem_flg = 0; |
sops[2].sem_flg = 0; |
| 703 |
|
|
| 704 |
|
#if defined(__MSYS__) || defined(__MINGW32__) |
| 705 |
|
ret = semop(semid, sops, 3); |
| 706 |
|
#else |
| 707 |
timeout.tv_sec = wait_sec; |
timeout.tv_sec = wait_sec; |
| 708 |
timeout.tv_nsec = 0; |
timeout.tv_nsec = 0; |
| 709 |
|
|
| 710 |
ret = semtimedop(semid, sops, 3, &timeout); |
ret = semtimedop(semid, sops, 3, &timeout); |
| 711 |
|
#endif |
| 712 |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
if (ret == -1 && errno != EAGAIN && errno != EINTR) |
| 713 |
{ |
{ |
| 714 |
log_error("semtimedop(lock write) error %d\n", errno); |
log_error("semop(lock write) error %d\n", errno); |
| 715 |
} |
} |
| 716 |
|
|
| 717 |
return ret; |
return ret; |
| 840 |
goto cleanup; |
goto cleanup; |
| 841 |
} |
} |
| 842 |
|
|
| 843 |
*p_page_count = p_user_list_pool->p_current->user_count / BBS_user_limit_per_page + |
*p_page_count = (p_user_list_pool->p_current->user_count + BBS_user_limit_per_page - 1) / |
| 844 |
(p_user_list_pool->p_current->user_count % BBS_user_limit_per_page == 0 ? 0 : 1); |
BBS_user_limit_per_page; |
| 845 |
|
|
| 846 |
if (page_id < 0 || page_id >= *p_page_count) |
if (page_id < 0 || page_id >= *p_page_count) |
| 847 |
{ |
{ |
| 896 |
goto cleanup; |
goto cleanup; |
| 897 |
} |
} |
| 898 |
|
|
| 899 |
*p_page_count = p_user_list_pool->p_online_current->user_count / BBS_user_limit_per_page + |
*p_page_count = (p_user_list_pool->p_online_current->user_count + BBS_user_limit_per_page - 1) / BBS_user_limit_per_page; |
|
(p_user_list_pool->p_online_current->user_count % BBS_user_limit_per_page == 0 ? 0 : 1); |
|
| 900 |
|
|
| 901 |
if (page_id < 0 || page_id >= *p_page_count) |
if (page_id < 0 || page_id >= *p_page_count) |
| 902 |
{ |
{ |