| 1 |
/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
| 2 |
user_list.c - description |
/* |
| 3 |
------------------- |
* user_list |
| 4 |
Copyright : (C) 2004-2025 by Leaflet |
* - data model and basic operations of (online) user list |
| 5 |
Email : leaflet@leafok.com |
* |
| 6 |
***************************************************************************/ |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
| 7 |
|
*/ |
| 8 |
/*************************************************************************** |
|
| 9 |
* * |
#ifdef HAVE_CONFIG_H |
| 10 |
* This program is free software; you can redistribute it and/or modify * |
#include "config.h" |
| 11 |
* it under the terms of the GNU General Public License as published by * |
#endif |
|
* the Free Software Foundation; either version 3 of the License, or * |
|
|
* (at your option) any later version. * |
|
|
* * |
|
|
***************************************************************************/ |
|
| 12 |
|
|
| 13 |
#include "common.h" |
#include "common.h" |
| 14 |
#include "database.h" |
#include "database.h" |
| 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(__CYGWIN__) |
| 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 |
#define USER_LIST_TRY_LOCK_WAIT_TIME 1 // second |
enum _user_list_constant_t |
| 41 |
#define USER_LIST_TRY_LOCK_TIMES 10 |
{ |
| 42 |
|
USER_LIST_TRY_LOCK_WAIT_TIME = 1, // second |
| 43 |
|
USER_LIST_TRY_LOCK_TIMES = 10, |
| 44 |
|
}; |
| 45 |
|
|
| 46 |
struct user_list_pool_t |
struct user_list_pool_t |
| 47 |
{ |
{ |
| 188 |
p_list->users[i].signup_dt = (row[8] == NULL ? 0 : atol(row[8])); |
p_list->users[i].signup_dt = (row[8] == NULL ? 0 : atol(row[8])); |
| 189 |
p_list->users[i].last_login_dt = (row[9] == NULL ? 0 : atol(row[9])); |
p_list->users[i].last_login_dt = (row[9] == NULL ? 0 : atol(row[9])); |
| 190 |
p_list->users[i].last_logout_dt = (row[10] == NULL ? 0 : atol(row[10])); |
p_list->users[i].last_logout_dt = (row[10] == NULL ? 0 : atol(row[10])); |
| 191 |
p_list->users[i].birthday = (row[10] == NULL ? 0 : atol(row[11])); |
p_list->users[i].birthday = (row[11] == NULL ? 0 : atol(row[11])); |
| 192 |
intro_len = strlen((row[12] == NULL ? "" : row[12])); |
intro_len = strlen((row[12] == NULL ? "" : row[12])); |
| 193 |
if (intro_len >= sizeof(p_list->user_intro_buf) - 1 - intro_buf_offset) |
if (intro_len >= sizeof(p_list->user_intro_buf) - 1 - intro_buf_offset) |
| 194 |
{ |
{ |
| 342 |
} |
} |
| 343 |
|
|
| 344 |
qsort(p_online_list->index_uid, (size_t)user_cnt, sizeof(USER_INFO_INDEX_UID), user_info_index_uid_comp); |
qsort(p_online_list->index_uid, (size_t)user_cnt, sizeof(USER_INFO_INDEX_UID), user_info_index_uid_comp); |
|
|
|
|
#ifdef _DEBUG |
|
|
log_error("Rebuild index of %d online users\n", user_cnt); |
|
|
#endif |
|
| 345 |
} |
} |
| 346 |
|
|
| 347 |
p_online_list->user_count = user_cnt; |
p_online_list->user_count = user_cnt; |
| 348 |
p_online_list->guest_count = guest_cnt; |
p_online_list->guest_count = guest_cnt; |
| 349 |
|
|
|
#ifdef _DEBUG |
|
|
log_error("Loaded %d online users and %d guest users\n", p_list->user_count, p_list->guest_count); |
|
|
#endif |
|
|
|
|
| 350 |
cleanup: |
cleanup: |
| 351 |
mysql_free_result(rs); |
mysql_free_result(rs); |
| 352 |
|
|
| 502 |
log_error("shmdt(shmid = %d) error (%d)\n", shmid, errno); |
log_error("shmdt(shmid = %d) error (%d)\n", shmid, errno); |
| 503 |
} |
} |
| 504 |
|
|
| 505 |
if (shmctl(shmid, IPC_RMID, NULL) == -1) |
if (shmid != 0 && shmctl(shmid, IPC_RMID, NULL) == -1) |
| 506 |
{ |
{ |
| 507 |
log_error("shmctl(shmid = %d, IPC_RMID) error (%d)\n", shmid, errno); |
log_error("shmctl(shmid = %d, IPC_RMID) error (%d)\n", shmid, errno); |
| 508 |
} |
} |
| 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(__CYGWIN__) |
| 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(__CYGWIN__) |
| 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(__CYGWIN__) |
| 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(__CYGWIN__) |
| 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(__CYGWIN__) |
| 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 |
{ |
{ |