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Commit | Line | Data |
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1 | ||
2 | /* | |
3 | * Handle the scan queues | |
4 | */ | |
5 | ||
6 | #include "proxyscan.h" | |
7 | #include "../irc/irc.h" | |
8 | #include "../core/error.h" | |
9 | ||
10 | pendingscan *ps_normalqueue=NULL; | |
11 | pendingscan *ps_prioqueue=NULL; | |
12 | pendingscan *ps_normalqueueend=NULL; | |
13 | ||
14 | unsigned int normalqueuedscans=0; | |
15 | unsigned int prioqueuedscans=0; | |
16 | ||
17 | unsigned long countpendingscan=0; | |
18 | ||
19 | void queuescan(patricia_node_t *node, short scantype, unsigned short port, char class, time_t when) { | |
20 | pendingscan *psp, *psp2; | |
21 | ||
22 | /* we can just blindly queue the scans as node extension cleanhost cache blocks duplicate scans normally. | |
23 | * Scans may come from: | |
24 | * a) scan <node> (from an oper) | |
25 | * b) newnick handler - which ignores clean hosts, only scans new hosts or dirty hosts | |
26 | * c) adding a new scan type (rare) | |
27 | */ | |
28 | ||
29 | /* If there are scans spare, just start it immediately.. | |
30 | * provided we're not supposed to wait */ | |
31 | if (activescans < maxscans && when<=time(NULL) && ps_ready) { | |
32 | startscan(node, scantype, port, class); | |
33 | return; | |
34 | } | |
35 | ||
36 | /* We have to queue it */ | |
37 | if (!(psp=getpendingscan())) | |
38 | Error("proxyscan",ERR_STOP,"Unable to allocate memory"); | |
39 | ||
40 | countpendingscan++; | |
41 | ||
42 | psp->node=node; | |
43 | psp->type=scantype; | |
44 | psp->port=port; | |
45 | psp->class=class; | |
46 | psp->when=when; | |
47 | psp->next=NULL; | |
48 | ||
49 | if (!when) { | |
50 | /* normal queue */ | |
51 | normalqueuedscans++; | |
52 | if (ps_normalqueueend) { | |
53 | ps_normalqueueend->next=psp; | |
54 | ps_normalqueueend=psp; | |
55 | } else { | |
56 | ps_normalqueueend=ps_normalqueue=psp; | |
57 | } | |
58 | } else { | |
59 | prioqueuedscans++; | |
60 | if (!ps_prioqueue || ps_prioqueue->when > when) { | |
61 | psp->next=ps_prioqueue; | |
62 | ps_prioqueue=psp; | |
63 | } else { | |
64 | for (psp2=ps_prioqueue; ;psp2=psp2->next) { | |
65 | if (!psp2->next || psp2->next->when > when) { | |
66 | psp->next = psp2->next; | |
67 | psp2->next = psp; | |
68 | break; | |
69 | } | |
70 | } | |
71 | } | |
72 | } | |
73 | } | |
74 | ||
75 | void startqueuedscans() { | |
76 | pendingscan *psp=NULL; | |
77 | ||
78 | while (activescans < maxscans) { | |
79 | if (ps_prioqueue && (ps_prioqueue->when <= time(NULL))) { | |
80 | psp=ps_prioqueue; | |
81 | ps_prioqueue=psp->next; | |
82 | prioqueuedscans--; | |
83 | } else if (ps_normalqueue) { | |
84 | psp=ps_normalqueue; | |
85 | ps_normalqueue=psp->next; | |
86 | if (!ps_normalqueue) | |
87 | ps_normalqueueend=NULL; | |
88 | normalqueuedscans--; | |
89 | } | |
90 | ||
91 | if (psp) { | |
92 | startscan(psp->node, psp->type, psp->port, psp->class); | |
93 | freependingscan(psp); | |
94 | countpendingscan--; | |
95 | psp=NULL; | |
96 | } else { | |
97 | break; | |
98 | } | |
99 | } | |
100 | } | |
101 | ||
102 |