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/*
libco.win (2008-01-28)
authors: Nach, byuu
license: public domain
*/
#define LIBCO_C
#include "libco.h"
#include "settings.h"
#define WINVER 0x0400
#define _WIN32_WINNT 0x0400
#include <windows.h>
#ifdef __cplusplus
extern "C" {
#endif
static thread_local cothread_t co_active_ = 0;
static void __stdcall co_thunk(void* coentry) {
((void (*)(void))coentry)();
}
cothread_t co_active() {
if(!co_active_) {
ConvertThreadToFiber(0);
co_active_ = GetCurrentFiber();
}
return co_active_;
}
cothread_t co_create(unsigned int heapsize, void (*coentry)(void),
size_t *out_size) {
if(!co_active_) {
ConvertThreadToFiber(0);
co_active_ = GetCurrentFiber();
}
*out_size = heapsize;
return (cothread_t)CreateFiber(heapsize, co_thunk, (void*)coentry);
}
void co_delete(cothread_t cothread) {
DeleteFiber(cothread);
}
void co_switch(cothread_t cothread) {
co_active_ = cothread;
SwitchToFiber(cothread);
}
#ifdef __cplusplus
}
#endif
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