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#include <signal.h>
#include "threadimpl.h"
typedef struct Mainarg Mainarg;
struct Mainarg
{
int argc;
char **argv;
};
int mainstacksize;
int _threadnotefd;
int _threadpasserpid;
static void mainlauncher(void*);
extern void (*_sysfatal)(char*, va_list);
void
_threaddie(int x)
{
extern char *_threadexitsallstatus;
USED(x);
if(_threadexitsallstatus)
exit(_threadexitsallstatus[0] ? 1 : 0);
}
int
main(int argc, char **argv)
{
Mainarg *a;
Proc *p;
signal(SIGTERM, _threaddie);
// rfork(RFREND);
//_threaddebuglevel = (DBGSCHED|DBGCHAN|DBGREND)^~0;
_systhreadinit();
_qlockinit(_threadrendezvous);
_sysfatal = _threadsysfatal;
// notify(_threadnote);
if(mainstacksize == 0)
mainstacksize = 32*1024;
a = _threadmalloc(sizeof *a, 1);
a->argc = argc;
a->argv = argv;
p = _newproc(mainlauncher, a, mainstacksize, "threadmain", 0, 0);
_schedinit(p);
abort(); /* not reached */
return 0;
}
static void
mainlauncher(void *arg)
{
Mainarg *a;
a = arg;
threadmain(a->argc, a->argv);
threadexits("threadmain");
}
void
_threadsignal(void)
{
}
void
_threadsignalpasser(void)
{
}
int
_schedfork(Proc *p)
{
int pid;
lock(&p->lock);
pid = ffork(RFMEM|RFNOWAIT, _schedinit, p);
p->pid = pid;
unlock(&p->lock);
return pid;
}
void
_schedexit(Proc *p)
{
char ex[ERRMAX];
Proc **l;
lock(&_threadpq.lock);
for(l=&_threadpq.head; *l; l=&(*l)->next){
if(*l == p){
*l = p->next;
if(*l == nil)
_threadpq.tail = l;
break;
}
}
unlock(&_threadpq.lock);
strncpy(ex, p->exitstr, sizeof ex);
ex[sizeof ex-1] = '\0';
free(p);
_exit(ex[0]);
}
int
nrand(int n)
{
return random()%n;
}
void
_systhreadinit(void)
{
}
void
threadstats(void)
{
extern int _threadnrendez, _threadhighnrendez,
_threadnalt, _threadhighnentry;
fprint(2, "*** THREAD LIBRARY STATS ***\n");
fprint(2, "nrendez %d high simultaneous %d\n",
_threadnrendez, _threadhighnrendez);
fprint(2, "nalt %d high simultaneous entry %d\n",
_threadnalt, _threadhighnentry);
}
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