acl::dbuf_guard下的dbuf_alloc方法分配buffer的遇到的json解析问题

我用socket接收数据，分别用两种方式建接收buf。从以下日志可以看出第一种方式在第二次调用json.update后，剩下的串理应是原串的部分且是json，但这时串乱了：（。奇怪的是当一步步调试，有时对有时又乱了。改了，第二种方式用buf[4096]就好了。我分析是dbuf->dbuf_alloc(nLen)生成的buf有问题。

第一种方式
int nLen = 4096;
acl::dbuf_guard *dbuf = new acl::dbuf_guard;
char* buf = (char*)dbuf->dbuf_alloc(nLen);
--------------------
===收到数据===>{"cmdexec":[{"cmd":"filetruncate","file":"/home/mm/centostest/centostest1","len":"214000"}]}<======
---调用json.update前------>{"cmdexec":[{"cmd":"filetruncate","file":"/home/mm/centostest/centostest1","len":"214000"}]}<----------
***调用json.update后*****><*********
===收到数据===>{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"0","cmd":"fill","vol":"8192","content":"0"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"8192","cmd":"fill","vol":"8192","content":"1"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"16384","cmd":"fill","vol":"8192","content":"2"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"24576","cmd":"fill","vol":"8192","content":"3"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"32768","cmd":"fill","vol":"8192","content":"4"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"40960","cmd":"fill","vol":"8192","content":"5"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"49152","cmd":"fill","vol":"8192","content":"6"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"57344","cmd":"fill","vol":"8192","content":"7"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"65536","cmd":"fill","vol":"8192","content":"8"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"73728","cmd":"fill","vol":"8192","content":"9"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<======
---调用json.update前------>{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"0","cmd":"fill","vol":"8192","content":"0"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"8192","cmd":"fill","vol":"8192","content":"1"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"16384","cmd":"fill","vol":"8192","content":"2"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"24576","cmd":"fill","vol":"8192","content":"3"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"32768","cmd":"fill","vol":"8192","content":"4"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"40960","cmd":"fill","vol":"8192","content":"5"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"49152","cmd":"fill","vol":"8192","content":"6"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"57344","cmd":"fill","vol":"8192","content":"7"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"65536","cmd":"fill","vol":"8192","content":"8"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"73728","cmd":"fill","vol":"8192","content":"9"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<----------

***调用json.update后*****>md":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<*********

第二种方式
char buf[4096];

===收到数据===>{"cmdexec":[{"cmd":"filetruncate","file":"/home/mm/centostest/centostest1","len":"214000"}]}<======
---调用json.update前------>{"cmdexec":[{"cmd":"filetruncate","file":"/home/mm/centostest/centostest1","len":"214000"}]}<----------
***调用json.update后*****><*********
===收到数据===>{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"0","cmd":"fill","vol":"8192","content":"0"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"8192","cmd":"fill","vol":"8192","content":"1"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"16384","cmd":"fill","vol":"8192","content":"2"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"24576","cmd":"fill","vol":"8192","content":"3"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"32768","cmd":"fill","vol":"8192","content":"4"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"40960","cmd":"fill","vol":"8192","content":"5"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"49152","cmd":"fill","vol":"8192","content":"6"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"57344","cmd":"fill","vol":"8192","content":"7"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"65536","cmd":"fill","vol":"8192","content":"8"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"73728","cmd":"fill","vol":"8192","content":"9"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<======
---调用json.update前------>{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"0","cmd":"fill","vol":"8192","content":"0"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"8192","cmd":"fill","vol":"8192","content":"1"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"16384","cmd":"fill","vol":"8192","content":"2"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"24576","cmd":"fill","vol":"8192","content":"3"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"32768","cmd":"fill","vol":"8192","content":"4"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"40960","cmd":"fill","vol":"8192","content":"5"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"49152","cmd":"fill","vol":"8192","content":"6"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"57344","cmd":"fill","vol":"8192","content":"7"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"65536","cmd":"fill","vol":"8192","content":"8"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"73728","cmd":"fill","vol":"8192","content":"9"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<----------
***调用json.update后*****>{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"8192","cmd":"fill","vol":"8192","content":"1"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"16384","cmd":"fill","vol":"8192","content":"2"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"24576","cmd":"fill","vol":"8192","content":"3"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"32768","cmd":"fill","vol":"8192","content":"4"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"40960","cmd":"fill","vol":"8192","content":"5"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"49152","cmd":"fill","vol":"8192","content":"6"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"57344","cmd":"fill","vol":"8192","content":"7"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"65536","cmd":"fill","vol":"8192","content":"8"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"73728","cmd":"fill","vol":"8192","content":"9"}}
{"cmdfile":{"file":"/home/mm/centostest/centostest1","idx":"81920","cmd":"fill","wait":"1","vol":"8192","content":"10"}}<*********

GVP acl-dev/acl

内容风险标识

评论 (0)

GVPacl-dev/acl

内容风险标识