code: mafs

ref: 390e726c64ee2aca967617ac7f7fd2a44f27646b
dir: /error.c/

#include <u.h>
#include <libc.h>
#include "dat.h"
#include "fns.h"

s8 envpidx = -1;		/* the index in _privates holding the Errenv location. hack: hoping that this will be the same across all processes */
Errenv **envpp = nil;
extern int	dprint(char *fmt, ...);

void
showerrenv(char *msg)
{
	u8 i;
	Errenv *env = *envpp;

	dprint("%s", msg);
	dprint("env 0x%p env->nlabel %hhud\n", env, env->nlabel);
	for(i = 0; i < env->nlabel; i++){
		dprint("i %hhud pc 0x%p\n", i, env->label[i][JMPBUFPC]);
	}
}

void
nexterror(void)
{
	Errenv *env = *envpp;
	// showerrenv("nexterror before\n");
	longjmp(env->label[--env->nlabel], 1);
}

void
error(s8 *fmt, ...)
{
	va_list arg;
	char buf[ERRMAX];

	va_start(arg, fmt);
	vseprint(buf, buf+ERRMAX, fmt, arg);
	va_end(arg);
	// dprint("error: %s\n", buf);
	errstr(buf, ERRMAX);
	nexterror();
}