Function report |
Source Code:fs\select.c |
Create Date:2022-07-28 20:07:04 |
Last Modify:2020-03-18 10:25:38 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:do_poll
Proto:static int do_poll(struct poll_list *list, struct poll_wqueues *wait, struct timespec64 *end_time)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct poll_list * | list | |
struct poll_wqueues * | wait | |
struct timespec64 * | end_time |
877 | slack = 0 |
878 | busy_flag = If net_busy_loop_on() Then POLL_BUSY_LOOP Else 0 |
879 | busy_start = 0 |
882 | If end_time && Not seconds && Not nanoseconds Then |
887 | If end_time && Not timed_out Then slack = select_estimate_accuracy(end_time) |
890 | cycle |
892 | bool can_busy_loop = false |
921 | _qproc = NULL |
922 | If Not count Then |
924 | If signal_pending(current process) Then count = -start if no handler.. |
931 | If can_busy_loop && Not need_resched() Then |
932 | If Not busy_start Then |
933 | busy_start = busy_loop_current_time() |
934 | Continue |
936 | If Not poll/select we use the global sysctl_net_ll_poll value Then Continue |
939 | busy_flag = 0 |
951 | If Not poll_schedule_timeout(wait, TASK_INTERRUPTIBLE, to, slack) Then timed_out = 1 |
954 | Return count |
Name | Describe |
---|---|
do_sys_poll |
Source code conversion tool public plug-in interface | X |
---|---|
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |