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#include "uint32.h"
#include "fmt.h"
#include "buffer.h"
#include "strerr.h"
#include "seek.h"
#include "cdb.h"
#define FATAL "cdbstats: fatal: "
void die_read(void)
{
strerr_die2sys(111,FATAL,"unable to read input: ");
}
void die_readformat(void)
{
strerr_die2x(111,FATAL,"unable to read input: truncated file");
}
void die_write(void)
{
strerr_die2sys(111,FATAL,"unable to write output: ");
}
void put(char *buf,unsigned int len)
{
if (buffer_put(buffer_1small,buf,len) == -1) die_write();
}
void putflush(void)
{
if (buffer_flush(buffer_1small) == -1) die_write();
}
uint32 pos = 0;
void get(char *buf,unsigned int len)
{
int r;
while (len > 0) {
r = buffer_get(buffer_0,buf,len);
if (r == -1) die_read();
if (r == 0) die_readformat();
pos += r;
buf += r;
len -= r;
}
}
void getnum(uint32 *num)
{
char buf[4];
get(buf,4);
uint32_unpack(buf,num);
}
char strnum[FMT_ULONG];
void putnum(char *label,unsigned long count)
{
unsigned int i;
put(label,strlen(label));
for (i = fmt_ulong(0,count);i < 10;++i) put(" ",1);
put(strnum,fmt_ulong(strnum,count));
put("\n",1);
}
char key[1024];
static struct cdb c;
static unsigned long numrecords;
static unsigned long numd[11];
main()
{
uint32 eod;
uint32 klen;
uint32 dlen;
seek_pos rest;
int r;
cdb_init(&c,0);
getnum(&eod);
while (pos < CDB_SIZE_HASH_TABLE_POINTER) getnum(&dlen);
while (pos < eod) {
getnum(&klen);
getnum(&dlen);
if (klen > sizeof key) {
while (klen) { get(key,1); --klen; }
}
else {
get(key,klen);
rest = seek_cur(0);
cdb_findstart(&c);
do {
switch(cdb_findnext(&c,key,klen)) {
case -1: die_read();
case 0: die_readformat();
}
} while (cdb_datapos(&c) != pos);
if (!c.loop) die_readformat();
++numrecords;
if (c.loop > 10)
++numd[10];
else
++numd[c.loop - 1];
if (seek_set(0,rest) == -1) die_read();
}
while (dlen) { get(key,1); --dlen; }
}
putnum("records ",numrecords);
putnum("d0 ",numd[0]);
putnum("d1 ",numd[1]);
putnum("d2 ",numd[2]);
putnum("d3 ",numd[3]);
putnum("d4 ",numd[4]);
putnum("d5 ",numd[5]);
putnum("d6 ",numd[6]);
putnum("d7 ",numd[7]);
putnum("d8 ",numd[8]);
putnum("d9 ",numd[9]);
putnum(">9 ",numd[10]);
putflush();
_exit(0);
}
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