rb_update

函数名称：_update_event - update event type and data*@event: the event to update*@type: the type of event*@length: the size of the event field in the ring buffer* Update the type and data fields of the event

函数原型：static void rb_update_event(struct ring_buffer_per_cpu *cpu_buffer, struct ring_buffer_event *event, struct rb_event_info *info)

返回类型：void

参数：

类型	参数	名称
struct ring_buffer_per_cpu *	cpu_buffer
struct ring_buffer_event *	event
struct rb_event_info *	info

2347

length等于length

2348

delta等于delta

2351

如果此条件成立可能性小(为编译器优化)(!rb_event_is_commit(cpu_buffer, event))则delta等于0

2358

如果此条件成立可能性小(为编译器优化)(add_timestamp)则

2359

abs等于ring_buffer_time_stamp_abs(buffer)

2361

event等于Slow path, do not inline

2362

length减等于RB_LEN_TIME_EXTEND

2363

delta等于0

2366

time_delta等于delta

2367

length减等于RB_EVNT_HDR_SIZE

2368

如果length大于RB_MAX_SMALL_DATA则

2369

type_len等于0

2370

array[0]等于length

2371

否则type_len等于DIV_ROUND_UP(length, RB_ALIGNMENT)

**调用者**
名称	描述
__rb_reserve_next

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

函数逻辑报告