46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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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 <pspthreadman.h>
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/* Since cothread_t is a void pointer it must contain an address. We can't return a reference to a local variable
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* because it would go out of scope, so we create a static variable instead so we can return a reference to it.
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*/
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static SceUID active_thread_id = 0;
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cothread_t co_active()
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{
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active_thread_id = sceKernelGetThreadId();
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return &active_thread_id;
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}
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cothread_t co_create(unsigned int size, void (*entrypoint)(void))
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{
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/* Similar scenario as with active_thread_id except there will only be one active_thread_id while there could be many
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* new threads each with their own handle, so we create them on the heap instead and delete them manually when they're
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* no longer needed in co_delete().
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*/
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cothread_t handle = malloc(sizeof(cothread_t));
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/* SceKernelThreadEntry has a different signature than entrypoint, but in practice this seems to work */
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SceUID new_thread_id = sceKernelCreateThread("cothread", (SceKernelThreadEntry)entrypoint, 0x12, size, 0, NULL);
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sceKernelStartThread(new_thread_id, 0, NULL);
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*(SceUID *)handle = new_thread_id;
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return handle;
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}
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void co_delete(cothread_t handle)
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{
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sceKernelTerminateDeleteThread(*(SceUID *)handle);
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free(handle);
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}
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void co_switch(cothread_t handle)
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{
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sceKernelWakeupThread(*(SceUID *)handle);
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/* Sleep the currently active thread so the new thread can start */
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sceKernelSleepThread();
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}
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