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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <pthread.h>
#include "libcgo.h"
static void* threadentry(void*);
static pthread_key_t km, kg;
void
initcgo(void)
{
if(pthread_key_create(&km, nil) < 0) {
fprintf(stderr, "libcgo: pthread_key_create failed\n");
abort();
}
if(pthread_key_create(&kg, nil) < 0) {
fprintf(stderr, "libcgo: pthread_key_create failed\n");
abort();
}
}
void
libcgo_sys_thread_start(ThreadStart *ts)
{
pthread_attr_t attr;
pthread_t p;
size_t size;
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
ts->g->stackguard = size;
pthread_create(&p, &attr, threadentry, ts);
}
static void*
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
ts.g->stackbase = (uintptr)&ts;
/*
* libcgo_sys_thread_start set stackguard to stack size;
* change to actual guard pointer.
*/
ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;
crosscall_amd64(ts.m, ts.g, ts.fn);
return nil;
}
void
libcgo_set_scheduler(void *m, void *g)
{
pthread_setspecific(km, m);
pthread_setspecific(kg, g);
}
struct get_scheduler_args {
void *m;
void *g;
};
void libcgo_get_scheduler(struct get_scheduler_args *)
__attribute__ ((visibility("hidden")));
void
libcgo_get_scheduler(struct get_scheduler_args *p)
{
p->m = pthread_getspecific(km);
p->g = pthread_getspecific(kg);
}
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