60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
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#ifndef _WIN32
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// #include <thread>
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// #include <stdexcept>
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// #include <atomic>
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#include <pthread.h>
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#include <signal.h>
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#include <limits.h>
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#include "ultra64.h"
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#include "multilibultra.hpp"
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constexpr int pause_thread_signum = SIGUSR1;
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// void cleanup_current_thread(OSThread *t) {
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// debug_printf("Thread cleanup %d\n", t->id);
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// // delete t->context;
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// }
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void sig_handler(int signum, siginfo_t *info, void *context) {
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if (signum == pause_thread_signum) {
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OSThread *t = Multilibultra::this_thread();
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debug_printf("[Sig] Thread %d paused\n", t->id);
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// Wait until the thread is marked as running again
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t->context->running.wait(false);
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debug_printf("[Sig] Thread %d resumed\n", t->id);
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}
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}
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void Multilibultra::native_init(void) {
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// Set up a signal handler to capture pause signals
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struct sigaction sigact;
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sigemptyset(&sigact.sa_mask);
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sigact.sa_flags = SA_SIGINFO | SA_RESTART;
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sigact.sa_sigaction = sig_handler;
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sigaction(pause_thread_signum, &sigact, nullptr);
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}
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void Multilibultra::native_thread_init(OSThread *t) {
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debug_printf("[Native] Init thread %d\n", t->id);
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}
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void Multilibultra::pause_thread_native_impl(OSThread *t) {
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debug_printf("[Native] Pause thread %d\n", t->id);
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// Send a pause signal to the thread, which will trigger it to wait on its pause barrier in the signal handler
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pthread_kill(t->context->host_thread.native_handle(), pause_thread_signum);
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}
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void Multilibultra::resume_thread_native_impl(UNUSED OSThread *t) {
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debug_printf("[Native] Resume thread %d\n", t->id);
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// Nothing to do here
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}
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#endif
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