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48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
#ifndef thread_h_INCLUDED
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#define thread_h_INCLUDED
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#include "datatypes.h"
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/* Get the current stack frame */
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#define gst_thread_stack(t) ((t)->data + (t)->count)
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/* Create a new thread */
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GstThread *gst_thread(Gst *vm, GstValue callee, uint32_t capacity);
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/* Ensure that the thread has enough EXTRA capacity */
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void gst_thread_ensure_extra(Gst *vm, GstThread *thread, uint32_t extra);
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/* Push a value on the current stack frame*/
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void gst_thread_push(Gst *vm, GstThread *thread, GstValue x);
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/* Push n nils onto the stack */
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void gst_thread_pushnil(Gst *vm, GstThread *thread, uint32_t n);
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/* Package up extra args after and including n into tuple at n*/
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void gst_thread_tuplepack(Gst *vm, GstThread *thread, uint32_t n);
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/* Expand a callee on the stack frame to its delegate function. This means that
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* objects and userdata that have a "call" attribut in their class will be
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* replaced with their delegate function. Call this before pushing any
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* arguments to the stack. Returns the new stack. */
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GstValue *gst_thread_expand_callable(Gst *vm, GstThread *thread, GstValue callee);
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/* Push a stack frame to a thread, with space for arity arguments. Returns the new
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* stack. */
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GstValue *gst_thread_beginframe(Gst *vm, GstThread *thread, GstValue callee, uint32_t arity);
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/* After pushing arguments to a stack frame created with gst_thread_beginframe, call this
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* to finalize the frame before starting a function call. */
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void gst_thread_endframe(Gst *vm, GstThread *thread);
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/* Pop a stack frame from the thread. Returns the new stack frame, or
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* NULL if there are no more frames */
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GstValue *gst_thread_popframe(Gst *vm, GstThread *thread);
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/* Move the current stack frame over its parent stack frame, allowing
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* for primitive tail calls. Return new stack. */
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GstValue *gst_thread_tail(Gst *vm, GstThread *thread);
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#endif // thread_h_INCLUDED
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