1 files changed, 63 insertions, 0 deletions
diff --git a/coroutine/pthread/Context.h b/coroutine/pthread/Context.h
new file mode 100644
index 0000000000..6d551ee9df
--- /dev/null
+++ b/coroutine/pthread/Context.h
@@ -0,0 +1,63 @@
+/*
+ *  This file is part of the "Coroutine" project and released under the MIT License.
+ *
+ *  Created by Samuel Williams on 24/6/2021.
+ *  Copyright, 2021, by Samuel Williams.
+*/
+
+#pragma once
+
+#include <assert.h>
+#include <stddef.h>
+#include <pthread.h>
+
+#define COROUTINE void
+
+#define COROUTINE_PTHREAD_CONTEXT
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#if INTPTR_MAX <= INT32_MAX
+#define COROUTINE_LIMITED_ADDRESS_SPACE
+#endif
+#endif
+
+struct coroutine_context;
+
+struct coroutine_shared
+{
+    pthread_mutex_t guard;
+    struct coroutine_context * main;
+
+    size_t count;
+};
+
+typedef COROUTINE(* coroutine_start)(struct coroutine_context *from, struct coroutine_context *self);
+
+struct coroutine_context
+{
+    struct coroutine_shared * shared;
+
+    coroutine_start start;
+    void *argument;
+
+    void *stack;
+    size_t size;
+
+    pthread_t id;
+    pthread_cond_t schedule;
+    struct coroutine_context * from;
+};
+
+void coroutine_initialize_main(struct coroutine_context * context);
+
+void coroutine_initialize(
+    struct coroutine_context *context,
+    coroutine_start start,
+    void *stack,
+    size_t size
+);
+
+struct coroutine_context * coroutine_transfer(struct coroutine_context * current, struct coroutine_context * target);
+
+void coroutine_destroy(struct coroutine_context * context);