do_compat_select

函数名称：do_compat_select

函数原型：static int do_compat_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp, compat_ulong_t __user *exp, struct old_timeval32 __user *tvp)

返回类型：int

参数：

类型	参数	名称
int	n
compat_ulong_t __user *	inp
compat_ulong_t __user *	outp
compat_ulong_t __user *	exp
struct old_timeval32 __user *	tvp

1249

struct timespec64 end_time, * to = NULL

1253

如果tvp则

1254

如果copy_from_user( & tv, tvp, tv的长度)则返回:负EFAULT

1257

to等于end_time

1258

如果poll_select_set_timeout - helper function to setup the timeout value*@to: pointer to timespec64 variable for the final timeout*@sec: seconds (from user space)*@nsec: nanoseconds (from user space)* Note, we do not use a timespec for the user space value 则返回:负EINVAL

1264

ret等于We can actually return ERESTARTSYS instead of EINTR, but I'd* like to be certain this leads to no problems. So I return* EINTR just for safety.* Update: ERESTARTSYS breaks at least the xview clock binary, so

1265

返回:poll_select_finish( & end_time, tvp, PT_OLD_TIMEVAL, ret)

**调用者**
名称	描述
COMPAT_SYSCALL_DEFINE5
COMPAT_SYSCALL_DEFINE1

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

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