/var/lib/pcp/testsuite/src/hashwalk.c is in pcp-testsuite 3.10.8build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | /*
* Copyright (c) 2013 Red Hat.
*
* Exercise libpcp hash walk interfaces
*/
#include <pcp/pmapi.h>
#include <pcp/impl.h>
void
dumpnode(unsigned int key, long data)
{
printf("%u => %ld\n", key, data);
}
__pmHashWalkState
walker(const __pmHashNode *n, void *v)
{
__pmHashWalkState state = (__pmHashWalkState)(long)v;
dumpnode(n->key, (long)n->data);
return state;
}
void
chained(__pmHashCtl *h)
{
__pmHashNode *n;
for (n = __pmHashWalk(h, PM_HASH_WALK_START);
n != NULL;
n = __pmHashWalk(h, PM_HASH_WALK_NEXT)) {
dumpnode(n->key, (long)n->data);
}
}
int
main(int argc, char **argv)
{
__pmHashCtl hc = { 0 };
printf("adding entries\n");
__pmHashAdd(0, (void *)0L, &hc);
__pmHashAdd(1, (void *)1L, &hc);
__pmHashAdd(2, (void *)2L, &hc);
__pmHashAdd(3, (void *)3L, &hc);
if (argc >= 2) {
if (strcmp(argv[1], "callback") == 0)
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_NEXT, &hc);
else if (strcmp(argv[1], "linked") == 0)
chained(&hc);
exit(0);
}
printf("iterating WALK_STOP\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_STOP, &hc);
printf("iterating WALK_NEXT\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_NEXT, &hc);
printf("iterating WALK_DELETE_STOP\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_DELETE_STOP, &hc);
printf("iterating WALK_NEXT\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_NEXT, &hc);
printf("iterating WALK_DELETE_NEXT\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_DELETE_NEXT, &hc);
printf("iterating WALK_NEXT\n");
__pmHashWalkCB(walker, (void *)PM_HASH_WALK_NEXT, &hc);
exit(0);
}
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