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Commit | Line | Data |
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1 | /* proxyscanalloc.c */ | |
2 | ||
3 | #include "proxyscan.h" | |
4 | ||
5 | #include <stdlib.h> | |
6 | ||
7 | #define ALLOCUNIT 1024 | |
8 | ||
9 | scan *freescans; | |
10 | cachehost *freecachehosts; | |
11 | pendingscan *freependingscans; | |
12 | foundproxy *freefoundproxies; | |
13 | ||
14 | void *mallocs=NULL; | |
15 | ||
16 | void *smalloc(size_t size) { | |
17 | void **mem; | |
18 | ||
19 | /* Get the memory we want, with an extra four bytes for our pointer */ | |
20 | mem=(void **)malloc(size+sizeof(void *)); | |
21 | ||
22 | /* Set the first word to point at the last chunk we got */ | |
23 | *mem=mallocs; | |
24 | ||
25 | /* Now set the "last chunk" pointer to the address of this one */ | |
26 | mallocs=(void *)mem; | |
27 | ||
28 | /* Return the rest of the memory to the caller */ | |
29 | return (void *)(mem+1); | |
30 | } | |
31 | ||
32 | void sfreeall() { | |
33 | void *vp,**vp2; | |
34 | ||
35 | vp=mallocs; | |
36 | ||
37 | while (vp!=NULL) { | |
38 | vp2=(void **)vp; | |
39 | vp=*vp2; | |
40 | free((void *)vp2); | |
41 | } | |
42 | } | |
43 | ||
44 | scan *getscan() { | |
45 | int i; | |
46 | scan *sp; | |
47 | ||
48 | if (freescans==NULL) { | |
49 | /* Eep. Allocate more. */ | |
50 | freescans=(scan *)smalloc(ALLOCUNIT*sizeof(scan)); | |
51 | for (i=0;i<(ALLOCUNIT-1);i++) { | |
52 | freescans[i].next=&(freescans[i+1]); | |
53 | } | |
54 | freescans[ALLOCUNIT-1].next=NULL; | |
55 | } | |
56 | ||
57 | sp=freescans; | |
58 | freescans=sp->next; | |
59 | ||
60 | return sp; | |
61 | } | |
62 | ||
63 | void freescan(scan *sp) { | |
64 | sp->next=freescans; | |
65 | freescans=sp; | |
66 | } | |
67 | ||
68 | cachehost *getcachehost() { | |
69 | int i; | |
70 | cachehost *chp; | |
71 | ||
72 | if (freecachehosts==NULL) { | |
73 | freecachehosts=(cachehost *)smalloc(ALLOCUNIT*sizeof(cachehost)); | |
74 | for (i=0;i<(ALLOCUNIT-1);i++) { | |
75 | freecachehosts[i].next=&(freecachehosts[i+1]); | |
76 | } | |
77 | freecachehosts[ALLOCUNIT-1].next=NULL; | |
78 | } | |
79 | ||
80 | chp=freecachehosts; | |
81 | freecachehosts=chp->next; | |
82 | ||
83 | return chp; | |
84 | } | |
85 | ||
86 | void freecachehost(cachehost *chp) { | |
87 | chp->next=freecachehosts; | |
88 | freecachehosts=chp; | |
89 | } | |
90 | ||
91 | pendingscan *getpendingscan() { | |
92 | int i; | |
93 | pendingscan *psp; | |
94 | ||
95 | if (!freependingscans) { | |
96 | freependingscans=(pendingscan *)smalloc(ALLOCUNIT * sizeof(pendingscan)); | |
97 | for (i=0;i<(ALLOCUNIT-1);i++) | |
98 | freependingscans[i].next = freependingscans+i+1; | |
99 | freependingscans[ALLOCUNIT-1].next=NULL; | |
100 | } | |
101 | ||
102 | psp=freependingscans; | |
103 | freependingscans=psp->next; | |
104 | ||
105 | return psp; | |
106 | } | |
107 | ||
108 | void freependingscan(pendingscan *psp) { | |
109 | psp->next=freependingscans; | |
110 | freependingscans=psp; | |
111 | } | |
112 | ||
113 | foundproxy *getfoundproxy() { | |
114 | int i; | |
115 | foundproxy *fpp; | |
116 | ||
117 | if (!freefoundproxies) { | |
118 | freefoundproxies=(foundproxy *)smalloc(ALLOCUNIT * sizeof(foundproxy)); | |
119 | for (i=0;i<(ALLOCUNIT-1);i++) | |
120 | freefoundproxies[i].next = freefoundproxies+i+1; | |
121 | freefoundproxies[ALLOCUNIT-1].next=NULL; | |
122 | } | |
123 | ||
124 | fpp=freefoundproxies; | |
125 | freefoundproxies=fpp->next; | |
126 | ||
127 | return fpp; | |
128 | } | |
129 | ||
130 | void freefoundproxy(foundproxy *fpp) { | |
131 | fpp->next=freefoundproxies; | |
132 | freefoundproxies=fpp; | |
133 | } | |
134 |