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#include "stdinc.h"
#include "dat.h"
#include "fns.h"
int
namecmp(char *s, char *t)
{
return strncmp(s, t, ANameSize);
}
void
namecp(char *dst, char *src)
{
strncpy(dst, src, ANameSize - 1);
dst[ANameSize - 1] = '\0';
}
int
nameok(char *name)
{
char *t;
int c;
if(name == nil)
return -1;
for(t = name; c = *t; t++)
if(t - name >= ANameSize
|| c < ' ' || c >= 0x7f)
return -1;
return 0;
}
int
stru32int(char *s, u32int *r)
{
char *t;
u32int n, nn, m;
int c;
m = TWID32 / 10;
n = 0;
for(t = s; ; t++){
c = *t;
if(c < '0' || c > '9')
break;
if(n > m)
return -1;
nn = n * 10 + c - '0';
if(nn < n)
return -1;
n = nn;
}
*r = n;
return s != t && *t == '\0';
}
int
stru64int(char *s, u64int *r)
{
char *t;
u64int n, nn, m;
int c;
m = TWID64 / 10;
n = 0;
for(t = s; ; t++){
c = *t;
if(c < '0' || c > '9')
break;
if(n > m)
return -1;
nn = n * 10 + c - '0';
if(nn < n)
return -1;
n = nn;
}
*r = n;
return s != t && *t == '\0';
}
int
vttypevalid(int type)
{
return type < VtMaxType;
}
static char*
logit(int severity, char *fmt, va_list args)
{
char *s;
s = vsmprint(fmt, args);
if(s == nil)
return nil;
if(severity != EOk){
if(argv0 == nil)
fprint(2, "%T %s: err %d: %s\n", argv0, severity, s);
else
fprint(2, "%T err %d: %s\n", severity, s);
}
return s;
}
void
seterr(int severity, char *fmt, ...)
{
char *s;
va_list args;
va_start(args, fmt);
s = logit(severity, fmt, args);
va_end(args);
if(s == nil)
werrstr("error setting error");
else{
werrstr("%s", s);
free(s);
}
}
void
logerr(int severity, char *fmt, ...)
{
char *s;
va_list args;
va_start(args, fmt);
s = logit(severity, fmt, args);
va_end(args);
free(s);
}
u32int
now(void)
{
return time(nil);
}
int abortonmem = 1;
void *
emalloc(ulong n)
{
void *p;
p = malloc(n);
if(p == nil){
if(abortonmem)
abort();
sysfatal("out of memory allocating %lud", n);
}
memset(p, 0xa5, n);
setmalloctag(p, getcallerpc(&n));
if(0)print("emalloc %p-%p by %#p\n", p, (char*)p+n, getcallerpc(&n));
return p;
}
void *
ezmalloc(ulong n)
{
void *p;
p = malloc(n);
if(p == nil){
if(abortonmem)
abort();
sysfatal("out of memory allocating %lud", n);
}
memset(p, 0, n);
setmalloctag(p, getcallerpc(&n));
if(0)print("ezmalloc %p-%p by %#p\n", p, (char*)p+n, getcallerpc(&n));
return p;
}
void *
erealloc(void *p, ulong n)
{
p = realloc(p, n);
if(p == nil){
if(abortonmem)
abort();
sysfatal("out of memory allocating %lud", n);
}
setrealloctag(p, getcallerpc(&p));
if(0)print("erealloc %p-%p by %#p\n", p, (char*)p+n, getcallerpc(&p));
return p;
}
char *
estrdup(char *s)
{
char *t;
int n;
n = strlen(s) + 1;
t = emalloc(n);
memmove(t, s, n);
setmalloctag(t, getcallerpc(&s));
if(0)print("estrdup %p-%p by %#p\n", t, (char*)t+n, getcallerpc(&s));
return t;
}
/*
* return floor(log2(v))
*/
int
u64log2(u64int v)
{
int i;
for(i = 0; i < 64; i++)
if((v >> i) <= 1)
break;
return i;
}
int
vtproc(void (*fn)(void*), void *arg)
{
proccreate(fn, arg, 256*1024);
return 0;
}
int
ientryfmt(Fmt *fmt)
{
IEntry *ie;
ie = va_arg(fmt->args, IEntry*);
return fmtprint(fmt, "%V %22lld %3d %5d %3d",
ie->score, ie->ia.addr, ie->ia.type, ie->ia.size, ie->ia.blocks);
}
void
ventifmtinstall(void)
{
fmtinstall('F', vtfcallfmt);
fmtinstall('H', encodefmt);
fmtinstall('I', ientryfmt);
fmtinstall('T', vttimefmt);
fmtinstall('V', vtscorefmt);
}
uint
msec(void)
{
return nsec()/1000000;
}
uint
countbits(uint n)
{
n = (n&0x55555555)+((n>>1)&0x55555555);
n = (n&0x33333333)+((n>>2)&0x33333333);
n = (n&0x0F0F0F0F)+((n>>4)&0x0F0F0F0F);
n = (n&0x00FF00FF)+((n>>8)&0x00FF00FF);
n = (n&0x0000FFFF)+((n>>16)&0x0000FFFF);
return n;
}
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