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author | bmaupin | 2019-09-13 13:44:12 -0400 |
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committer | bmaupin | 2019-09-13 13:44:12 -0400 |
commit | 16958ba2a798aae6ec933073a183db837a30883a (patch) | |
tree | 99e7dc57ee666a45af2982c639dfc7dfac633987 /libco | |
parent | efd437a2b40ccfb84be20523362164eb42219ab8 (diff) | |
download | picogpsp-16958ba2a798aae6ec933073a183db837a30883a.tar.gz picogpsp-16958ba2a798aae6ec933073a183db837a30883a.tar.bz2 picogpsp-16958ba2a798aae6ec933073a183db837a30883a.zip |
Add libco implementation for PSP
Diffstat (limited to 'libco')
-rw-r--r-- | libco/libco.c | 2 | ||||
-rw-r--r-- | libco/psp1.c | 45 |
2 files changed, 47 insertions, 0 deletions
diff --git a/libco/libco.c b/libco/libco.c index 1d7ec51..95a04f5 100644 --- a/libco/libco.c +++ b/libco/libco.c @@ -12,6 +12,8 @@ #include "ppc.c" #elif defined(VITA) #include "scefiber.c" +#elif defined(PSP) + #include "psp1.c" #elif defined(__GNUC__) && defined(__aarch64__) #include "aarch64.c" #elif defined(__GNUC__) && (defined(__ARM_EABI__) || defined(__arm__)) diff --git a/libco/psp1.c b/libco/psp1.c new file mode 100644 index 0000000..90702ce --- /dev/null +++ b/libco/psp1.c @@ -0,0 +1,45 @@ +#define LIBCO_C +#include "libco.h" + +#include <stdlib.h> +#include <pspthreadman.h> + +/* Since cothread_t is a void pointer it must contain an address. We can't return a reference to a local variable + * because it would go out of scope, so we create a static variable instead so we can return a reference to it. + */ +static SceUID active_thread_id = 0; + +cothread_t co_active() +{ + active_thread_id = sceKernelGetThreadId(); + return &active_thread_id; +} + +cothread_t co_create(unsigned int size, void (*entrypoint)(void)) +{ + /* Similar scenario as with active_thread_id except there will only be one active_thread_id while there could be many + * new threads each with their own handle, so we create them on the heap instead and delete them manually when they're + * no longer needed in co_delete(). + */ + cothread_t handle = malloc(sizeof(cothread_t)); + + /* SceKernelThreadEntry has a different signature than entrypoint, but in practice this seems to work */ + SceUID new_thread_id = sceKernelCreateThread("cothread", (SceKernelThreadEntry)entrypoint, 0x12, size, 0, NULL); + sceKernelStartThread(new_thread_id, 0, NULL); + + *(SceUID *)handle = new_thread_id; + return handle; +} + +void co_delete(cothread_t handle) +{ + sceKernelTerminateDeleteThread(*(SceUID *)handle); + free(handle); +} + +void co_switch(cothread_t handle) +{ + sceKernelWakeupThread(*(SceUID *)handle); + /* Sleep the currently active thread so the new thread can start */ + sceKernelSleepThread(); +} |