1.一文分析DPDK跟踪库tracepoint源码
2.python代ç 大å
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3.c# 使ç¨point 缺å°ä»ä¹using å¼ç¨
一文分析DPDK跟踪库tracepoint源码
在DPDK跟踪库tracepoint的源码分析中,关键流程包括rte_eal_trace_thread_remote_launch以及初始化过程。初始化流程由`eal_trace_init`执行,挂载`tracepoint`,php在线广告设计源码其核心在于`RTE_TRACE_POINT_DEFINE`宏与`RTE_TRACE_POINT_REGISTER`定义的转换。rte_eal_trace_thread_remote_launch函数定义于`lib\librte_eal\include\rte_eal_trace.h`文件,源码cc是远程线程操作的函数。
接着观察`__rte_trace_point_emit_header_generic`函数,通过分析其流程可以看出其主要分为两部分:获取内存区域与填充函数指针、arg指针等数据。在调用这个宏时,内存区域将用于存储时间戳及标志位等信息,然后填入由宏提供的车标源码数据类型,包括函数指针、arg指针、bits的fusion源码slave_id和int型rc变量。这些操作在`rte_eal_remote_launch`函数中执行时完成,DPDK的tracepoint功能最终实现。
为了深入理解这些细节,soul源码建议参考相关资源,如《全网讲的最好的DPDK,由简到精,系统学习,资深老师带你聊透DPDK 为什么说实现CM的挑战不在硬件而在软件》等材料,并且实际操作学习DPDK的tracepoint实现方法,通过实践深化对源码的理解。
参考资料链接:t.csdn.cn/NhKEJ
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class?Point:
row=0col=0def?__init__(self,?row,?col):self.row=row
self.col=col
def?copy(self):return?Point(row=self.row,?col=self.col)
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import?pygame
import?random
#åå§å
pygame.init()
W=
H=
ROW=
COL=
size=(W,H)
window=pygame.display.set_mode(size)
pygame.display.set_caption('è´ªåè')
bg_color=(,,)
snake_color=(,,)
head=Point(row=int(ROW/2),?col=int(COL/2))
head_color=(0,,)
snakes=[
Point(row=head.row,?col=head.col+1),Point(row=head.row,?col=head.col+2),Point(row=head.row,?col=head.col+3)]
#çæé£ç©
def?gen_food():
while?1:pos=Point(row=random.randint(0,ROW-1),?col=random.randint(0,COL-1))
#
is_coll=False
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if?head.row==pos.row?and?head.col==pos.col:
is_coll=True#è身å
for?snake?in?snakes:
if?snake.row==pos.row?and?snake.col==pos.col:is_coll=True
break
if?not?is_coll:
breakreturn?pos#å®ä¹åæ
food=gen_food()
food_color=(,,0)
direct='left'#left,right,up,down
#
def?rect(point,?color):
cell_width=W/COLcell_height=H/ROWleft=point.col*cell_widthtop=point.row*cell_heightpygame.draw.rect(window,?color,
(left,?top,?cell_width,?cell_height)
)pass#游æ循ç¯
quit=True
clock=pygame.time.Clock()
while?quit:
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quit=Falseelif?event.type==pygame.KEYDOWN:
if?event.key==?or?event.key==:if?direct=='left'?or?direct=='right':
direct='up'elif?event.key==?or?event.key==:if?direct?==?'left'?or?direct?==?'right':
direct='down'elif?event.key==?or?event.key==:if?direct?==?'up'?or?direct?==?'down':
direct='left'elif?event.key==?or?event.key==:if?direct?==?'up'?or?direct?==?'down':
direct='right'#åä¸è¥¿eat=(head.row==food.row?and?head.col==food.col)#éæ°äº§çé£ç©if?eat:food?=?gen_food()
#å¤ç身å#1.æåæ¥ç头ï¼æå ¥å°snakesç头ä¸snakes.insert(0,?head.copy())#2.æsnakesçæåä¸ä¸ªå æif?not?eat:snakes.pop()
#移å¨if?direct=='left':head.col-=1
elif?direct=='right':head.col+=1
elif?direct=='up':head.row-=1
elif?direct=='down':head.row+=1
#æ£æµdead=False#1.æå¢if?head.col0?or?head.row0?or?head.col=COL?or?head.row=ROW:dead=True
#2.æèªå·±for?snake?in?snakes:if?head.col==snake.col?and?head.row==snake.row:
dead=Truebreakif?dead:print('æ»äº')
quit=False
#渲æââç»åºæ¥#èæ¯pygame.draw.rect(window,?bg_color,?(0,0,W,H))#è头for?snake?in?snakes:rect(snake,?snake_color)
rect(head,?head_color)rect(food,?food_color)#pygame.display.flip()#设置帧é¢ï¼é度ï¼clock.tick(8)#æ¶å°¾å·¥ä½
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