ref: e96b9e14a06a019e20988fa6a80b8871d0db2c44
dir: /testextents.c/
#include <u.h>
#include <libc.h>
#include "extents.h"
#include <bio.h>
/*
test the extents functionality
{ echo 2 3 ; echo 100 3; } | ./6.testextents
*/
int chatty9p = 0;
static void
usage(void)
{
fprint(2, "usage: testextents [-D ]\n");
exits("usage");
}
void
panic(char *fmt, ...)
{
char buf[8192], *s;
va_list arg;
s = buf;
s += sprint(s, "%s %d: ", argv0, getpid());
va_start(arg, fmt);
s = vseprint(s, buf + sizeof(buf) / sizeof(*buf), fmt, arg);
va_end(arg);
*s++ = '\n';
write(2, buf, s - buf);
abort();
exits(buf);
}
static void *
emalloc(u32 sz)
{
void *v;
if((v = mallocz(sz, 1)) == nil)
sysfatal("emalloc: %r");
setmalloctag(v, getcallerpc(&sz));
return v;
}
void
main(int argc, char *argv[])
{
Extents es;
s8 *line, *p;
Biobuf *bp;
u64 bno, len;
char act;
ARGBEGIN{
default: usage();
case 'D': chatty9p=8; break;
}ARGEND
if(argc != 0)
usage();
bp = Bfdopen(0, OREAD);
Blethal(bp, nil);
initextents(&es, "testextents", 0, 0, 1, nil, nil, panic, emalloc);
while((line = Brdstr(bp, '\n', 1)) != nil) {
act = line[0];
if(act == '-'){
len = strtoull(line+1, nil, 10);
ualloc(&es, len);
}else{
bno = strtoull(line, &p, 10);
p++; /* for the space */
len = strtoull(p, nil, 10);
ufree(&es, bno, len);
}
free(line);
}
showextentslists(1, "", &es);
/* why bother? just exits(nil) as cinap suggests */
Bterm(bp);
exits(nil);
}