我正在为一个嵌入式平台开发一个应用程序,也就是TI的DM385,它运行的是arago。
在通过http上传大于3-4MB的文件时,我遇到了一个奇怪的问题。
有时上传效果很好,有时文件被上传,但数据被破坏,HTTP报头出现在文件的二进制数据中间。
其他时候,我会得到glibc()错误(malloc或free),或者SIGSEGV和boa崩溃。
当使用较小的文件时,如1MB或更小,一切工作正常。我试图通过在整个程序流程中添加大量的调试打印来调试这个问题。这反过来确实减慢了服务器的运行速度,并暂时解决了问题-文件上传每次都工作得很好。
似乎在数据传输过程中使用的一个文件描述符中发生了某种类型的缓冲区欠载,但我真的不能指出任何具体的东西。
有没有人可以分享一些关于这个问题或类似问题的知识?
来自评论的更新:
构建过程中的警告:
boa.c: In function 'main':
boa.c:290: warning: passing argument 4 of 'pthread_create' makes pointer from integer without a cast
boa.c:292: warning: implicit declaration of function 'onvif_dbg'
boa.c: In function 'create_server_socket_udp_hello':
boa.c:376: warning: unused variable 'one'
boa.c: At top level:
boa.c:374: warning: 'create_server_socket_udp_hello' defined but not used
buffer.c: In function 'req_flush':
buffer.c:219: warning: implicit declaration of function 'onvif_dbg'
cgi.c: In function 'uri_decoding':
cgi.c:329: warning: pointer targets in passing argument 1 of 'ascii_to_hex' differ in signedness
config.c: In function 'read_config_files':
config.c:294: warning: implicit declaration of function 'onvif_trace'
request.c: In function 'uri_mpeg4':
request.c:3327: warning: implicit declaration of function 'onvif_dbg'
request.c: In function 'process_requests':
request.c:4730: warning: suggest parentheses around assignment used as truth value
request.c: At top level:
request.c:49: warning: 'sts' defined but not used
In file included from response.c:26:
/home/user/IPNC_RDK/Source/ipnc_rdk/../ipnc_rdk/ipnc_app/interface/inc/system_default.h:16:1: warning: "IPNC_DM385" redefined
<command-line>: warning: this is the location of the previous definition
In file included from select.c:27:
onvif.h:33:12: warning: missing whitespace after the macro name
select.c: In function 'probe_thr':
select.c:46: warning: implicit declaration of function 'GetSysInfo'
select.c:46: warning: initialization makes pointer from integer without a cast
select.c:51: warning: control reaches end of non-void function
select.c: In function 'select_loop':
select.c:66: warning: implicit declaration of function 'pthread_create'
select.c:68: warning: implicit declaration of function 'onvif_dbg'
发布于 2014-03-18 00:58:22
最好的方法是修复所有警告。
然而(注释指的是上面的警告):
boa.c: In function 'main':
boa.c:290: warning: passing argument 4 of 'pthread_create' makes pointer from integer without a cast
检查这个,它可能是致命的。
boa.c:292: warning: implicit declaration of function 'onvif_dbg'
解决这个问题。
boa.c: In function 'create_server_socket_udp_hello':
boa.c:376: warning: unused variable 'one'
不是很好,但却是无害的。
boa.c: At top level:
boa.c:374: warning: 'create_server_socket_udp_hello' defined but not used
不是很好,但却是无害的。
buffer.c: In function 'req_flush':
buffer.c:219: warning: implicit declaration of function 'onvif_dbg'
解决这个问题。
cgi.c: In function 'uri_decoding':
cgi.c:329: warning: pointer targets in passing argument 1 of 'ascii_to_hex' differ in signedness
检查这个,它可能是致命的。
config.c: In function 'read_config_files':
config.c:294: warning: implicit declaration of function 'onvif_trace'
解决这个问题。
request.c: In function 'uri_mpeg4':
request.c:3327: warning: implicit declaration of function 'onvif_dbg'
解决这个问题。
request.c: In function 'process_requests':
request.c:4730: warning: suggest parentheses around assignment used as truth value
检查这个,它可能是致命的。
request.c: At top level:
request.c:49: warning: 'sts' defined but not used
不是很好,但却是无害的。
In file included from response.c:26:
/home/user/IPNC_RDK/Source/ipnc_rdk/../ipnc_rdk/ipnc_app/interface/inc/system_default.h:16:1: warning: "IPNC_DM385" redefined
<command-line>: warning: this is the location of the previous definition
In file included from select.c:27:
检查这个,它可能是致命的。
onvif.h:33:12: warning: missing whitespace after the macro name
检查这个,它可能是致命的。
select.c: In function 'probe_thr':
select.c:46: warning: implicit declaration of function 'GetSysInfo'
解决这个问题。
select.c:46: warning: initialization makes pointer from integer without a cast
解决这个问题。
select.c:51: warning: control reaches end of non-void function
解决这个问题。
select.c: In function 'select_loop':
select.c:66: warning: implicit declaration of function 'pthread_create'
解决这个问题。
select.c:68: warning: implicit declaration of function 'onvif_dbg'
解决这个问题。
https://stackoverflow.com/questions/22378462
复制相似问题