2
我只是写了这个示例程序，看看如何将一个单向链表如何释放内存使用glib函数列表项
我试图释放内存上使用巧舌如簧的功能，但它表明，零释放..in下面的背景下..
当使用g_free(list)显示一个免费的，但同时使用的valgrind它显示无效免费..
如何释放内存，并没有任何错误时，Valgrind的？
谢谢
1 #include<headers.h>
2 int main()
3 {
4 printf("SINGLY LINKED LIST\n");
5
6 GSList *list = NULL,*iterator = NULL;
7
8 list = g_slist_append(list,"First_Element");
9 printf("1st--%p\n",list);
10
11 list = g_slist_prepend(list,"Zeroth_Element");
12 printf("0th--%p\n",list);
13
14 list = g_slist_append(list,"second_element");
15 printf("2nd--%p\n",list);
16
17 for(iterator = list;iterator;iterator = iterator->next)
18 printf("%s\n",(char*)iterator->data);
19
20 g_slist_free(list);
21 return 0;
22 }
bash-4.1$ valgrind --leak-check=full --show-reachable=yes ../bin/exe
==8021== Memcheck, a memory error detector
==8021== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==8021== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==8021== Command: ../bin/exe
==8021==
SINGLY LINKED LIST
1st--0x58fff00
0th--0x58fff10
2nd--0x58fff10
Zeroth_Element
First_Element
second_element
==8021==
==8021== HEAP SUMMARY:
==8021== in use at exit: 4,252 bytes in 8 blocks
==8021== total heap usage: 8 allocs, 0 frees, 4,252 bytes allocated
==8021==
==8021== 240 bytes in 1 blocks are possibly lost in loss record 1 of 6
==8021== at 0x4C26588: memalign (vg_replace_malloc.c:727)
==8021== by 0x4C26623: posix_memalign (vg_replace_malloc.c:876)
==8021== by 0x4E8D777: ??? (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8DFFB: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== 252 bytes in 1 blocks are still reachable in loss record 2 of 6
==8021== at 0x4C267BB: calloc (vg_replace_malloc.c:593)
==8021== by 0x4E78BF7: g_malloc0 (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8CFD1: ??? (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8DE8D: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== 504 bytes in 1 blocks are still reachable in loss record 3 of 6
==8021== at 0x4C267BB: calloc (vg_replace_malloc.c:593)
==8021== by 0x4E78BF7: g_malloc0 (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8CFF1: ??? (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8DE8D: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== 504 bytes in 1 blocks are still reachable in loss record 4 of 6
==8021== at 0x4C267BB: calloc (vg_replace_malloc.c:593)
==8021== by 0x4E78BF7: g_malloc0 (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8D011: ??? (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8DE8D: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== 720 bytes in 3 blocks are possibly lost in loss record 5 of 6
==8021== at 0x4C26588: memalign (vg_replace_malloc.c:727)
==8021== by 0x4C26623: posix_memalign (vg_replace_malloc.c:876)
==8021== by 0x4E8D777: ??? (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8E031: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== 2,032 bytes in 1 blocks are still reachable in loss record 6 of 6
==8021== at 0x4C267BB: calloc (vg_replace_malloc.c:593)
==8021== by 0x4E78BF7: g_malloc0 (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8DE32: g_slice_alloc (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x4E8F612: g_slist_append (in /lib64/libglib-2.0.so.0.2800.8)
==8021== by 0x400666: main (ex_main.c:8)
==8021==
==8021== LEAK SUMMARY:
==8021== definitely lost: 0 bytes in 0 blocks
==8021== indirectly lost: 0 bytes in 0 blocks
==8021== possibly lost: 960 bytes in 4 blocks
==8021== still reachable: 3,292 bytes in 4 blocks
==8021== suppressed: 0 bytes in 0 blocks
==8021==
==8021== For counts of detected and suppressed errors, rerun with: -v
==8021== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 6 from 6)
bash-4.1$