| 520 |
|
|
| 521 |
return ret; |
return ret; |
| 522 |
} |
} |
| 523 |
|
|
| 524 |
|
int query_user_info(int32_t uid, USER_INFO *p_user) |
| 525 |
|
{ |
| 526 |
|
int left; |
| 527 |
|
int right; |
| 528 |
|
int mid; |
| 529 |
|
int ret = 0; |
| 530 |
|
|
| 531 |
|
if (p_user == NULL) |
| 532 |
|
{ |
| 533 |
|
log_error("NULL pointer error\n"); |
| 534 |
|
return -1; |
| 535 |
|
} |
| 536 |
|
|
| 537 |
|
// acquire lock of user list |
| 538 |
|
if (user_list_rd_lock() < 0) |
| 539 |
|
{ |
| 540 |
|
log_error("user_list_rd_lock() error\n"); |
| 541 |
|
return -2; |
| 542 |
|
} |
| 543 |
|
|
| 544 |
|
left = 0; |
| 545 |
|
right = p_user_list_pool->p_current->user_count - 1; |
| 546 |
|
|
| 547 |
|
while (left < right) |
| 548 |
|
{ |
| 549 |
|
mid = (left + right) / 2; |
| 550 |
|
if (uid < p_user_list_pool->p_current->users[mid].uid) |
| 551 |
|
{ |
| 552 |
|
right = mid; |
| 553 |
|
} |
| 554 |
|
else if (uid > p_user_list_pool->p_current->users[mid].uid) |
| 555 |
|
{ |
| 556 |
|
left = mid + 1; |
| 557 |
|
} |
| 558 |
|
else // if (uid == p_user_list_pool->p_current->users[mid].uid) |
| 559 |
|
{ |
| 560 |
|
left = mid; |
| 561 |
|
break; |
| 562 |
|
} |
| 563 |
|
} |
| 564 |
|
|
| 565 |
|
if (uid == p_user_list_pool->p_current->users[left].uid) // Found |
| 566 |
|
{ |
| 567 |
|
*p_user = p_user_list_pool->p_current->users[left]; |
| 568 |
|
ret = 1; |
| 569 |
|
} |
| 570 |
|
|
| 571 |
|
// release lock of user list |
| 572 |
|
if (user_list_rd_unlock() < 0) |
| 573 |
|
{ |
| 574 |
|
log_error("user_list_rd_unlock() error\n"); |
| 575 |
|
ret = -1; |
| 576 |
|
} |
| 577 |
|
|
| 578 |
|
return ret; |
| 579 |
|
} |
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