mirror of
https://github.com/libretro/RetroArch
synced 2025-01-31 15:32:59 +00:00
93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
/*
|
|
libco.win (2016-09-06)
|
|
authors: frangarcj
|
|
license: public domain
|
|
*/
|
|
|
|
#define LIBCO_C
|
|
#include <libco.h>
|
|
#include <stdlib.h>
|
|
#include <psp2/sysmodule.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
static thread_local cothread_t co_active_ = 0;
|
|
|
|
typedef struct SceFiber
|
|
{
|
|
char reserved[128];
|
|
} SceFiber __attribute__( ( aligned ( 8 ) ) ) ;
|
|
|
|
/* Forward declarations */
|
|
int32_t _sceFiberInitializeImpl(SceFiber *fiber, char *name, void *entry, uint32_t argOnInitialize,
|
|
void* addrContext, int32_t sizeContext, void* params);
|
|
int32_t sceFiberFinalize(SceFiber* fiber);
|
|
int32_t sceFiberRun(SceFiber* fiber, uint32_t argOnRunTo, uint32_t* argOnRun);
|
|
int32_t sceFiberSwitch(SceFiber* fiber, uint32_t argOnRunTo, uint32_t* argOnRun);
|
|
int32_t sceFiberReturnToThread(uint32_t argOnReturn, uint32_t* argOnRun);
|
|
|
|
static void co_thunk(uint32_t argOnInitialize, uint32_t argOnRun)
|
|
{
|
|
((void (*)(void))argOnInitialize)();
|
|
}
|
|
|
|
cothread_t co_active(void)
|
|
{
|
|
if (!co_active_)
|
|
{
|
|
sceSysmoduleLoadModule(SCE_SYSMODULE_FIBER);
|
|
co_active_ = (cothread_t)1;
|
|
}
|
|
return co_active_;
|
|
}
|
|
|
|
cothread_t co_create(unsigned int heapsize, void (*coentry)(void))
|
|
{
|
|
int ret;
|
|
SceFiber* tail_fiber = malloc(sizeof(SceFiber));
|
|
char * m_ctxbuf = malloc(sizeof(char)*heapsize);
|
|
if (!co_active_)
|
|
{
|
|
sceSysmoduleLoadModule(SCE_SYSMODULE_FIBER);
|
|
co_active_ = (cothread_t)1;
|
|
}
|
|
|
|
/* _sceFiberInitializeImpl */
|
|
if ((ret = _sceFiberInitializeImpl(
|
|
tail_fiber, "tailFiber", co_thunk,
|
|
(uint32_t)coentry, (void*)m_ctxbuf, heapsize, NULL)) == 0)
|
|
return (cothread_t)tail_fiber;
|
|
return (cothread_t)ret;
|
|
}
|
|
|
|
void co_delete(cothread_t cothread)
|
|
{
|
|
if (cothread != (cothread_t)1)
|
|
sceFiberFinalize((SceFiber*)cothread);
|
|
}
|
|
|
|
void co_switch(cothread_t cothread)
|
|
{
|
|
uint32_t argOnReturn = 0;
|
|
if (cothread == (cothread_t)1)
|
|
{
|
|
co_active_ = cothread;
|
|
sceFiberReturnToThread(0, NULL);
|
|
}
|
|
else
|
|
{
|
|
SceFiber* theFiber = (SceFiber*)cothread;
|
|
co_active_ = cothread;
|
|
if (co_active_ == (cothread_t)1)
|
|
sceFiberRun(theFiber, 0, &argOnReturn);
|
|
else
|
|
sceFiberSwitch(theFiber, 0, &argOnReturn);
|
|
}
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|