使用这个简单的程序:
#include "fcgi_stdio.h"
int main(void)
{
while(FCGI_Accept() >= 0)
{
}
FCGI_Finish();
return(0);
}
我从valgrind得到这个结果:
Memcheck, a memory error detector
Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
Command: ./val
HEAP SUMMARY:
in use at exit: 768 bytes in 1 blocks
total heap usage: 1 allocs, 0 frees, 768 bytes allocated
768 bytes in 1 blocks are still reachable in loss record 1 of 1
at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
by 0x4E3D986: OS_LibInit (os_unix.c:171)
by 0x4E3C80A: FCGX_Init (fcgiapp.c:2088)
by 0x4E3C89A: FCGX_IsCGI (fcgiapp.c:1946)
by 0x4E3CCA4: FCGI_Accept (fcgi_stdio.c:120)
by 0x4006F6: main (in /home/[me]/kod/val)
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
indirectly lost: 0 bytes in 0 blocks
possibly lost: 0 bytes in 0 blocks
still reachable: 768 bytes in 1 blocks
suppressed: 0 bytes in 0 blocks
For counts of detected and suppressed errors, rerun with: -v
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
如何在使用FCGI后正确释放所有内存?
最佳答案
我遇到了同样的问题好像是FCGI的一个漏洞解决方法是直接调用库函数进行清理OS_LibShutdown()通过内部调用FCGX_init()的FCGI_Accept()释放内存init对于多线程应用程序,您必须自己调用FCGX_Init()。
// Declare this (extern "C" is only required if from CPP)...
extern "C"
{
void OS_LibShutdown(void);
}
// From clean up code, call this...
OS_LibShutdown();
关于c - Valgrind和FCGI:如何在使用后正确释放所有内存,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/25323933/