mbuf.c (26940) | mbuf.c (28679) |
---|---|
1/* 2 * PPP Memory handling module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * | 1/* 2 * PPP Memory handling module 3 * 4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 5 * 6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 7 * 8 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the Internet Initiative Japan, Inc. The name of the 14 * IIJ may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * |
20 * $Id: mbuf.c,v 1.7 1997/06/09 03:27:29 brian Exp $ | 20 * $Id: mbuf.c,v 1.8 1997/06/25 19:30:02 brian Exp $ |
21 * 22 */ 23#include <sys/types.h> 24#include <sys/socket.h> 25#include <sys/param.h> 26#include <netinet/in.h> 27#include "defs.h" 28#include "loadalias.h" 29#include "vars.h" 30#include "server.h" 31 32struct memmap { 33 struct mbuf *queue; | 21 * 22 */ 23#include <sys/types.h> 24#include <sys/socket.h> 25#include <sys/param.h> 26#include <netinet/in.h> 27#include "defs.h" 28#include "loadalias.h" 29#include "vars.h" 30#include "server.h" 31 32struct memmap { 33 struct mbuf *queue; |
34 int count; 35} MemMap[MB_MAX+2]; | 34 int count; 35} MemMap[MB_MAX + 2]; |
36 37static int totalalloced; 38 39int | 36 37static int totalalloced; 38 39int |
40plength(bp) 41struct mbuf *bp; | 40plength(struct mbuf * bp) |
42{ 43 int len; 44 45 for (len = 0; bp; bp = bp->next) 46 len += bp->cnt; | 41{ 42 int len; 43 44 for (len = 0; bp; bp = bp->next) 45 len += bp->cnt; |
47 return(len); | 46 return (len); |
48} 49 50struct mbuf * | 47} 48 49struct mbuf * |
51mballoc(cnt, type) 52int cnt; 53int type; | 50mballoc(int cnt, int type) |
54{ 55 u_char *p; 56 struct mbuf *bp; 57 58 if (type > MB_MAX) 59 LogPrintf(LogERROR, "Bad mbuf type %d\n", type); | 51{ 52 u_char *p; 53 struct mbuf *bp; 54 55 if (type > MB_MAX) 56 LogPrintf(LogERROR, "Bad mbuf type %d\n", type); |
60 bp = (struct mbuf *)malloc(sizeof(struct mbuf)); | 57 bp = (struct mbuf *) malloc(sizeof(struct mbuf)); |
61 if (bp == NULL) { 62 LogPrintf(LogALERT, "failed to allocate memory: %u\n", sizeof(struct mbuf)); 63 ServerClose(); 64 exit(1); 65 } 66 bzero(bp, sizeof(struct mbuf)); | 58 if (bp == NULL) { 59 LogPrintf(LogALERT, "failed to allocate memory: %u\n", sizeof(struct mbuf)); 60 ServerClose(); 61 exit(1); 62 } 63 bzero(bp, sizeof(struct mbuf)); |
67 p = (u_char *)malloc(cnt); | 64 p = (u_char *) malloc(cnt); |
68 if (p == NULL) { 69 LogPrintf(LogALERT, "failed to allocate memory: %d\n", cnt); 70 ServerClose(); 71 exit(1); 72 } 73 MemMap[type].count += cnt; 74 totalalloced += cnt; 75 bp->base = p; 76 bp->size = bp->cnt = cnt; 77 bp->type = type; | 65 if (p == NULL) { 66 LogPrintf(LogALERT, "failed to allocate memory: %d\n", cnt); 67 ServerClose(); 68 exit(1); 69 } 70 MemMap[type].count += cnt; 71 totalalloced += cnt; 72 bp->base = p; 73 bp->size = bp->cnt = cnt; 74 bp->type = type; |
78 return(bp); | 75 return (bp); |
79} 80 81struct mbuf * | 76} 77 78struct mbuf * |
82mbfree(struct mbuf *bp) | 79mbfree(struct mbuf * bp) |
83{ 84 struct mbuf *nbp; 85 86 if (bp) { 87 nbp = bp->next; 88 MemMap[bp->type].count -= bp->size; 89 totalalloced -= bp->size; 90 free(bp->base); 91 free(bp); | 80{ 81 struct mbuf *nbp; 82 83 if (bp) { 84 nbp = bp->next; 85 MemMap[bp->type].count -= bp->size; 86 totalalloced -= bp->size; 87 free(bp->base); 88 free(bp); |
92 return(nbp); | 89 return (nbp); |
93 } | 90 } |
94 return(bp); | 91 return (bp); |
95} 96 97void | 92} 93 94void |
98pfree(struct mbuf *bp) | 95pfree(struct mbuf * bp) |
99{ 100 while (bp) 101 bp = mbfree(bp); 102} 103 104struct mbuf * | 96{ 97 while (bp) 98 bp = mbfree(bp); 99} 100 101struct mbuf * |
105mbread(bp, ptr, len) 106struct mbuf *bp; 107u_char *ptr; 108int len; | 102mbread(struct mbuf * bp, u_char * ptr, int len) |
109{ 110 int nb; 111 112 while (bp && len > 0) { 113 if (len > bp->cnt) 114 nb = bp->cnt; 115 else 116 nb = len; --- 5 unchanged lines hidden (view full) --- 122 if (bp->cnt == 0) { 123#ifdef notdef 124 bp = bp->next; 125#else 126 bp = mbfree(bp); 127#endif 128 } 129 } | 103{ 104 int nb; 105 106 while (bp && len > 0) { 107 if (len > bp->cnt) 108 nb = bp->cnt; 109 else 110 nb = len; --- 5 unchanged lines hidden (view full) --- 116 if (bp->cnt == 0) { 117#ifdef notdef 118 bp = bp->next; 119#else 120 bp = mbfree(bp); 121#endif 122 } 123 } |
130 return(bp); | 124 return (bp); |
131} 132 133void | 125} 126 127void |
134mbwrite(bp, ptr, cnt) 135struct mbuf *bp; 136u_char *ptr; 137int cnt; | 128mbwrite(struct mbuf * bp, u_char * ptr, int cnt) |
138{ 139 int plen; 140 int nb; 141 142 plen = plength(bp); 143 if (plen < cnt) 144 cnt = plen; 145 146 while (cnt > 0) { | 129{ 130 int plen; 131 int nb; 132 133 plen = plength(bp); 134 if (plen < cnt) 135 cnt = plen; 136 137 while (cnt > 0) { |
147 nb = (cnt < bp->cnt)? cnt : bp->cnt; | 138 nb = (cnt < bp->cnt) ? cnt : bp->cnt; |
148 bcopy(ptr, MBUF_CTOP(bp), nb); 149 cnt -= bp->cnt; 150 bp = bp->next; 151 } 152} 153 154int 155ShowMemMap() 156{ 157 int i; 158 159 if (!VarTerm) 160 return 1; 161 162 for (i = 0; i <= MB_MAX; i += 2) 163 fprintf(VarTerm, "%d: %d %d: %d\n", | 139 bcopy(ptr, MBUF_CTOP(bp), nb); 140 cnt -= bp->cnt; 141 bp = bp->next; 142 } 143} 144 145int 146ShowMemMap() 147{ 148 int i; 149 150 if (!VarTerm) 151 return 1; 152 153 for (i = 0; i <= MB_MAX; i += 2) 154 fprintf(VarTerm, "%d: %d %d: %d\n", |
164 i, MemMap[i].count, i+1, MemMap[i+1].count); | 155 i, MemMap[i].count, i + 1, MemMap[i + 1].count); |
165 166 return 0; 167} 168 169void 170LogMemory() 171{ 172 LogPrintf(LogDEBUG, "LogMemory: mem alloced: %d\n", totalalloced); 173 LogPrintf(LogDEBUG, "LogMemory: 1: %d 2: %d 3: %d 4: %d\n", 174 MemMap[1].count, MemMap[2].count, MemMap[3].count, MemMap[4].count); 175 LogPrintf(LogDEBUG, "LogMemory: 5: %d 6: %d 7: %d 8: %d\n", 176 MemMap[5].count, MemMap[6].count, MemMap[7].count, MemMap[8].count); 177} | 156 157 return 0; 158} 159 160void 161LogMemory() 162{ 163 LogPrintf(LogDEBUG, "LogMemory: mem alloced: %d\n", totalalloced); 164 LogPrintf(LogDEBUG, "LogMemory: 1: %d 2: %d 3: %d 4: %d\n", 165 MemMap[1].count, MemMap[2].count, MemMap[3].count, MemMap[4].count); 166 LogPrintf(LogDEBUG, "LogMemory: 5: %d 6: %d 7: %d 8: %d\n", 167 MemMap[5].count, MemMap[6].count, MemMap[7].count, MemMap[8].count); 168} |