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Subject: [dpdk-dev] Get the socket id
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hi,
   all
   I'm confused with the following code(Eal_memory.c in lib\librte_eal\linuxapp\eal directory, LINE 373):
 
   nodestr = strstr(buf," N");
   if(nodestr == NULL) {...}
   nodestr += 2;
   end = strstr(nodestr,"=");
   if(end == NULL) {...}
   // here nodestr = "0=1"
   end[0] = '\0';
   end = NULL;
  // here nodestr = "0"
   socket_id = strtoul(nodestr,&end,0);
 
   Through "printf", I know that:
   buf = "00200000 default file=/mnt/dpdk/huge/rtemap_1 huge dirty=1 N0=1"
   And finally socket_id=0
   My question is :why we get the socket_id before "=" instead of after "=" ?
   and if we want to get the character after "N", isn't this code too complex?
 
   I will be very appreciate for any help.
   Regards!
 
Maria
  
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<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><DIV>hi,</DIV>
<DIV>&nbsp;&nbsp; all</DIV>
<DIV>&nbsp;&nbsp; I'm confused with the following code(Eal_memory.c in lib\librte_eal\linuxapp\eal directory, LINE 373):</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp; nodestr = strstr(buf," N");</DIV>
<DIV>&nbsp;&nbsp; if(nodestr == NULL) {...}</DIV>
<DIV>&nbsp;&nbsp; nodestr += 2;</DIV>
<DIV>&nbsp;&nbsp; end = strstr(nodestr,"=");</DIV>
<DIV>&nbsp;&nbsp; if(end == NULL) {...}</DIV><SPAN style="COLOR: #880000">
<DIV>&nbsp;&nbsp; // here nodestr = "0=1"</DIV></SPAN>
<DIV><SPAN style="COLOR: #880000"></SPAN>&nbsp;&nbsp; end[0] = '\0';</DIV>
<DIV>&nbsp;&nbsp; end = NULL;</DIV>
<DIV>&nbsp;<SPAN style="COLOR: #880000"> // here nodestr = "0"</SPAN></DIV>
<DIV><SPAN style="COLOR: #880000"></SPAN>&nbsp;&nbsp; socket_id = strtoul(nodestr,&amp;end,0);</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp; Through "printf", I know that:</DIV>
<DIV>&nbsp;&nbsp; buf = "00200000 default file=/mnt/dpdk/huge/rtemap_1 huge dirty=1 N0=1"</DIV>
<DIV>&nbsp;&nbsp; And finally socket_id=0</DIV>
<DIV>&nbsp;&nbsp; My question is :why we get&nbsp;the&nbsp;socket_id before "=" instead of after "=" ?</DIV>
<DIV>&nbsp;&nbsp; and if we want to get the character after "N", isn't this code too complex?</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;&nbsp; I will be very appreciate for any help.</DIV>
<DIV>&nbsp;&nbsp; Regards!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Maria</DIV>
<DIV>&nbsp;&nbsp; </DIV></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>
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