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#include <u.h>
#include <libc.h>
#include <bio.h>
#include <thread.h>
#include <plumb.h>
#include <9pclient.h>
#include "dat.h"
void*
emalloc(uint n)
{
void *p;
p = malloc(n);
if(p == nil)
error("can't malloc: %r");
memset(p, 0, n);
setmalloctag(p, getcallerpc(&n));
return p;
}
void*
erealloc(void *p, uint n)
{
p = realloc(p, n);
if(p == nil)
error("can't realloc: %r");
setmalloctag(p, getcallerpc(&n));
return p;
}
char*
estrdup(char *s)
{
char *t;
t = emalloc(strlen(s)+1);
strcpy(t, s);
return t;
}
char*
estrstrdup(char *s, char *t)
{
char *u;
u = emalloc(strlen(s)+strlen(t)+1);
strcpy(u, s);
strcat(u, t);
return u;
}
char*
eappend(char *s, char *sep, char *t)
{
char *u;
if(t == nil)
u = estrstrdup(s, sep);
else{
u = emalloc(strlen(s)+strlen(sep)+strlen(t)+1);
strcpy(u, s);
strcat(u, sep);
strcat(u, t);
}
free(s);
return u;
}
char*
egrow(char *s, char *sep, char *t)
{
s = eappend(s, sep, t);
free(t);
return s;
}
void
error(char *fmt, ...)
{
Fmt f;
char buf[64];
va_list arg;
fmtfdinit(&f, 2, buf, sizeof buf);
fmtprint(&f, "Mail: ");
va_start(arg, fmt);
fmtvprint(&f, fmt, arg);
va_end(arg);
fmtprint(&f, "\n");
fmtfdflush(&f);
threadexitsall(fmt);
}
#if 0 /* jpc */
void
ctlprint(int fd, char *fmt, ...)
{
int n;
va_list arg;
va_start(arg, fmt);
n = vfprint(fd, fmt, arg);
va_end(arg);
fsync(fd);
if(n <= 0)
error("control file write error: %r");
}
#endif
void
ctlprint(CFid* fd, char *fmt, ...)
{
int n;
va_list arg;
char tmp[250];
va_start(arg, fmt);
n = vsnprint(tmp, 250, fmt, arg);
va_end(arg);
n = fswrite(fd, tmp, strlen(tmp));
if(n <= 0)
error("control file write error: %r");
}
int fsprint(CFid *fid, char* fmt, ...) {
// example call this replaces: Bprint(b, ">%s%s\n", lines[i][0]=='>'? "" : " ", lines[i]);
char *tmp;
va_list arg;
int n, tlen;
tmp = emalloc( tlen=(strlen(fmt)+250) ); // leave room for interpolated text
va_start(arg, fmt);
n = vsnprint(tmp, tlen, fmt, arg);
va_end(arg);
if(n == tlen)
error("fsprint formatting error");
n = fswrite(fid, tmp, strlen(tmp));
if(n <= 0)
error("fsprint write error: %r");
free(tmp);
return n;
}
#if 0 /* jpc */
/*
here's a read construct (from winselection) that may be useful in fsprint - think about it.
*/
int m, n;
char *buf;
char tmp[256];
CFid* fid;
fid = winopenfid1(w, "rdsel", OREAD);
if(fid == nil)
error("can't open rdsel: %r");
n = 0;
buf = nil;
for(;;){
m = fsread(fid, tmp, sizeof tmp);
if(m <= 0)
break;
buf = erealloc(buf, n+m+1);
memmove(buf+n, tmp, m);
n += m;
buf[n] = '\0';
}
#endif
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