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