mirror of
https://github.com/wiiu-env/WiiUPluginSystem.git
synced 2024-11-14 23:05:13 +01:00
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
#include "wups_reent.h"
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#include "wups_thread_specific.h"
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#include <cstring>
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#include <stdint.h>
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#include <stdlib.h>
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#define __WUPS_CONTEXT_THREAD_SPECIFIC_ID WUT_THREAD_SPECIFIC_1
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extern "C" __attribute__((weak)) void wut_set_thread_specific(__wut_thread_specific_id id, void *value);
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extern "C" __attribute__((weak)) void *wut_get_thread_specific(__wut_thread_specific_id);
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typedef uint32_t OSThread;
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extern const char wups_meta_info_dump[];
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extern "C" void OSFatal(const char *);
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extern "C" void OSReport(const char *, ...);
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extern "C" OSThread *OSGetCurrentThread();
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typedef void (*OSThreadCleanupCallbackFn)(OSThread *thread, void *stack);
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extern "C" OSThreadCleanupCallbackFn
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OSSetThreadCleanupCallback(OSThread *thread,
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OSThreadCleanupCallbackFn callback);
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struct __wups_thread_context {
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struct _reent reent;
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OSThreadCleanupCallbackFn savedCleanup;
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};
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static void
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__wups_thread_cleanup(OSThread *thread,
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void *stack) {
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struct __wups_thread_context *context;
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context = (struct __wups_thread_context *) wut_get_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID);
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if (!context || &context->reent == _GLOBAL_REENT) {
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OSReport("[%s] __wups_thread_cleanup: Context was NULL or reent was global\n", wups_meta_info_dump);
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OSFatal("__wups_thread_cleanup: Context was NULL or reent was global");
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}
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if (context->savedCleanup) {
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context->savedCleanup(thread, stack);
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}
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_reclaim_reent(&context->reent);
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// Use global reent during free since the current reent is getting freed
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wut_set_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID, _GLOBAL_REENT);
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free(context);
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wut_set_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID, NULL);
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}
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struct _reent *
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__wups_getreent(void) {
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struct __wups_thread_context *context;
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context = (struct __wups_thread_context *) wut_get_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID);
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if (!context) {
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// Temporarily use global reent during context allocation
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wut_set_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID, _GLOBAL_REENT);
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context = (struct __wups_thread_context *) malloc(sizeof(*context));
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if (!context) {
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OSReport("[%s] __wups_getreent: Failed to allocate reent context\n", wups_meta_info_dump);
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OSFatal("__wups_getreent: Failed to allocate reent context");
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wut_set_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID, NULL);
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return NULL;
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}
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_REENT_INIT_PTR(&context->reent);
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context->savedCleanup = OSSetThreadCleanupCallback(OSGetCurrentThread(), &__wups_thread_cleanup);
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wut_set_thread_specific(__WUPS_CONTEXT_THREAD_SPECIFIC_ID, context);
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}
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return &context->reent;
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}
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