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-rw-r--r--trunk/cont.c780
1 files changed, 780 insertions, 0 deletions
diff --git a/trunk/cont.c b/trunk/cont.c
new file mode 100644
index 0000000000..ad2c358264
--- /dev/null
+++ b/trunk/cont.c
@@ -0,0 +1,780 @@
+/**********************************************************************
+
+ cont.c -
+
+ $Author$
+ created at: Thu May 23 09:03:43 2007
+
+ Copyright (C) 2007 Koichi Sasada
+
+**********************************************************************/
+
+#include "ruby/ruby.h"
+#include "vm_core.h"
+#include "gc.h"
+#include "eval_intern.h"
+
+enum context_type {
+ CONTINUATION_CONTEXT = 0,
+ FIBER_CONTEXT = 1,
+ ROOT_FIBER_CONTEXT = 2
+};
+
+typedef struct rb_context_struct {
+ VALUE self;
+ VALUE value;
+ VALUE *vm_stack;
+ VALUE *machine_stack;
+ VALUE *machine_stack_src;
+#ifdef __ia64
+ VALUE *machine_register_stack;
+ VALUE *machine_register_stack_src;
+ int machine_register_stack_size;
+#endif
+ rb_thread_t saved_thread;
+ rb_jmpbuf_t jmpbuf;
+ int machine_stack_size;
+ VALUE prev;
+ int alive;
+ enum context_type type;
+} rb_context_t;
+
+static VALUE rb_cContinuation;
+static VALUE rb_cFiber;
+static VALUE rb_eFiberError;
+
+#define GetContPtr(obj, ptr) \
+ Data_Get_Struct(obj, rb_context_t, ptr)
+
+NOINLINE(static VALUE cont_capture(volatile int *stat));
+
+void rb_thread_mark(rb_thread_t *th);
+
+static void
+cont_mark(void *ptr)
+{
+ RUBY_MARK_ENTER("cont");
+ if (ptr) {
+ rb_context_t *cont = ptr;
+ rb_gc_mark(cont->value);
+ rb_gc_mark(cont->prev);
+ rb_thread_mark(&cont->saved_thread);
+
+ if (cont->vm_stack) {
+ rb_gc_mark_locations(cont->vm_stack,
+ cont->vm_stack + cont->saved_thread.stack_size);
+ }
+
+ if (cont->machine_stack) {
+ rb_gc_mark_locations(cont->machine_stack,
+ cont->machine_stack + cont->machine_stack_size);
+ }
+#ifdef __ia64
+ if (cont->machine_register_stack) {
+ rb_gc_mark_locations(cont->machine_register_stack,
+ cont->machine_register_stack + cont->machine_register_stack_size);
+ }
+#endif
+ }
+ RUBY_MARK_LEAVE("cont");
+}
+
+static void
+cont_free(void *ptr)
+{
+ RUBY_FREE_ENTER("cont");
+ if (ptr) {
+ rb_context_t *cont = ptr;
+ RUBY_FREE_UNLESS_NULL(cont->saved_thread.stack);
+ RUBY_FREE_UNLESS_NULL(cont->machine_stack);
+#ifdef __ia64
+ RUBY_FREE_UNLESS_NULL(cont->machine_register_stack);
+#endif
+ RUBY_FREE_UNLESS_NULL(cont->vm_stack);
+
+ if (cont->type == FIBER_CONTEXT) {
+ st_free_table(cont->saved_thread.local_storage);
+ }
+
+ ruby_xfree(ptr);
+ }
+ RUBY_FREE_LEAVE("cont");
+}
+
+static void
+cont_save_machine_stack(rb_thread_t *th, rb_context_t *cont)
+{
+ int size;
+ rb_thread_t *sth = &cont->saved_thread;
+
+ SET_MACHINE_STACK_END(&th->machine_stack_end);
+#ifdef __ia64
+ th->machine_register_stack_end = rb_ia64_bsp();
+#endif
+
+ if (th->machine_stack_start > th->machine_stack_end) {
+ size = cont->machine_stack_size = th->machine_stack_start - th->machine_stack_end;
+ cont->machine_stack_src = th->machine_stack_end;
+ }
+ else {
+ size = cont->machine_stack_size = th->machine_stack_end - th->machine_stack_start;
+ cont->machine_stack_src = th->machine_stack_start;
+ }
+
+ if (cont->machine_stack) {
+ REALLOC_N(cont->machine_stack, VALUE, size);
+ }
+ else {
+ cont->machine_stack = ALLOC_N(VALUE, size);
+ }
+
+ FLUSH_REGISTER_WINDOWS;
+ MEMCPY(cont->machine_stack, cont->machine_stack_src, VALUE, size);
+
+#ifdef __ia64
+ rb_ia64_flushrs();
+ size = cont->machine_register_stack_size = th->machine_register_stack_end - th->machine_register_stack_start;
+ cont->machine_register_stack_src = th->machine_register_stack_start;
+ if (cont->machine_register_stack) {
+ REALLOC_N(cont->machine_register_stack, VALUE, size);
+ }
+ else {
+ cont->machine_register_stack = ALLOC_N(VALUE, size);
+ }
+
+ MEMCPY(cont->machine_register_stack, cont->machine_register_stack_src, VALUE, size);
+#endif
+
+ sth->machine_stack_start = sth->machine_stack_end = 0;
+#ifdef __ia64
+ sth->machine_register_stack_start = sth->machine_register_stack_end = 0;
+#endif
+}
+
+static rb_context_t *
+cont_new(VALUE klass)
+{
+ rb_context_t *cont;
+ volatile VALUE contval;
+ rb_thread_t *th = GET_THREAD();
+
+ contval = Data_Make_Struct(klass, rb_context_t, cont_mark, cont_free, cont);
+
+ cont->self = contval;
+ cont->alive = Qtrue;
+
+ /* save thread context */
+ cont->saved_thread = *th;
+
+ return cont;
+}
+
+void vm_stack_to_heap(rb_thread_t *th);
+
+static VALUE
+cont_capture(volatile int *stat)
+{
+ rb_context_t *cont;
+ rb_thread_t *th = GET_THREAD(), *sth;
+ volatile VALUE contval;
+
+ vm_stack_to_heap(th);
+ cont = cont_new(rb_cContinuation);
+ contval = cont->self;
+ sth = &cont->saved_thread;
+
+ cont->vm_stack = ALLOC_N(VALUE, th->stack_size);
+ MEMCPY(cont->vm_stack, th->stack, VALUE, th->stack_size);
+ sth->stack = 0;
+
+ cont_save_machine_stack(th, cont);
+
+ if (ruby_setjmp(cont->jmpbuf)) {
+ VALUE value;
+
+ value = cont->value;
+ cont->value = Qnil;
+ *stat = 1;
+ return value;
+ }
+ else {
+ *stat = 0;
+ return cont->self;
+ }
+}
+
+NORETURN(static void cont_restore_1(rb_context_t *));
+
+static void
+cont_restore_1(rb_context_t *cont)
+{
+ rb_thread_t *th = GET_THREAD(), *sth = &cont->saved_thread;
+
+ /* restore thread context */
+ if (cont->type == CONTINUATION_CONTEXT) {
+ /* continuation */
+ VALUE fib;
+
+ th->fiber = sth->fiber;
+ fib = th->fiber ? th->fiber : th->root_fiber;
+
+ if (fib) {
+ rb_context_t *fcont;
+ GetContPtr(fib, fcont);
+ th->stack_size = fcont->saved_thread.stack_size;
+ th->stack = fcont->saved_thread.stack;
+ }
+ MEMCPY(th->stack, cont->vm_stack, VALUE, sth->stack_size);
+ }
+ else {
+ /* fiber */
+ th->stack = sth->stack;
+ th->stack_size = sth->stack_size;
+ th->local_storage = sth->local_storage;
+ th->fiber = cont->self;
+ }
+
+ th->cfp = sth->cfp;
+ th->safe_level = sth->safe_level;
+ th->raised_flag = sth->raised_flag;
+ th->state = sth->state;
+ th->status = sth->status;
+ th->tag = sth->tag;
+ th->trap_tag = sth->trap_tag;
+ th->errinfo = sth->errinfo;
+ th->first_proc = sth->first_proc;
+
+ /* restore machine stack */
+#ifdef _M_AMD64
+ {
+ /* workaround for x64 SEH */
+ jmp_buf buf;
+ setjmp(buf);
+ ((_JUMP_BUFFER*)(&cont->jmpbuf))->Frame =
+ ((_JUMP_BUFFER*)(&buf))->Frame;
+ }
+#endif
+ if (cont->machine_stack_src) {
+ FLUSH_REGISTER_WINDOWS;
+ MEMCPY(cont->machine_stack_src, cont->machine_stack,
+ VALUE, cont->machine_stack_size);
+ }
+
+#ifdef __ia64
+ if (cont->machine_register_stack_src) {
+ MEMCPY(cont->machine_register_stack_src, cont->machine_register_stack,
+ VALUE, cont->machine_register_stack_size);
+ }
+#endif
+
+ ruby_longjmp(cont->jmpbuf, 1);
+}
+
+NORETURN(NOINLINE(static void cont_restore_0(rb_context_t *, VALUE *)));
+
+#ifdef __ia64
+#define C(a) rse_##a##0, rse_##a##1, rse_##a##2, rse_##a##3, rse_##a##4
+#define E(a) rse_##a##0= rse_##a##1= rse_##a##2= rse_##a##3= rse_##a##4
+static volatile int C(a), C(b), C(c), C(d), C(e);
+static volatile int C(f), C(g), C(h), C(i), C(j);
+static volatile int C(k), C(l), C(m), C(n), C(o);
+static volatile int C(p), C(q), C(r), C(s), C(t);
+int rb_dummy_false = 0;
+NORETURN(NOINLINE(static void register_stack_extend(rb_context_t *, VALUE *)));
+static void
+register_stack_extend(rb_context_t *cont, VALUE *curr_bsp)
+{
+ if (rb_dummy_false) {
+ /* use registers as much as possible */
+ E(a) = E(b) = E(c) = E(d) = E(e) =
+ E(f) = E(g) = E(h) = E(i) = E(j) =
+ E(k) = E(l) = E(m) = E(n) = E(o) =
+ E(p) = E(q) = E(r) = E(s) = E(t) = 0;
+ E(a) = E(b) = E(c) = E(d) = E(e) =
+ E(f) = E(g) = E(h) = E(i) = E(j) =
+ E(k) = E(l) = E(m) = E(n) = E(o) =
+ E(p) = E(q) = E(r) = E(s) = E(t) = 0;
+ }
+ if (curr_bsp < cont->machine_register_stack_src+cont->machine_register_stack_size) {
+ register_stack_extend(cont, (VALUE*)rb_ia64_bsp());
+ }
+ cont_restore_1(cont);
+}
+#undef C
+#undef E
+#endif
+
+static void
+cont_restore_0(rb_context_t *cont, VALUE *addr_in_prev_frame)
+{
+ if (cont->machine_stack_src) {
+#define STACK_PAD_SIZE 1024
+ VALUE space[STACK_PAD_SIZE];
+
+#if STACK_GROW_DIRECTION < 0 /* downward */
+ if (addr_in_prev_frame > cont->machine_stack_src) {
+ cont_restore_0(cont, &space[0]);
+ }
+#elif STACK_GROW_DIRECTION > 0 /* upward */
+ if (addr_in_prev_frame < cont->machine_stack_src + cont->machine_stack_size) {
+ cont_restore_0(cont, &space[STACK_PAD_SIZE-1]);
+ }
+#else
+ if (addr_in_prev_frame > &space[0]) {
+ /* Stack grows downward */
+ if (addr_in_prev_frame > cont->machine_stack_src) {
+ cont_restore_0(cont, &space[0]);
+ }
+ }
+ else {
+ /* Stack grows upward */
+ if (addr_in_prev_frame < cont->machine_stack_src + cont->machine_stack_size) {
+ cont_restore_0(cont, &space[STACK_PAD_SIZE-1]);
+ }
+ }
+#endif
+ }
+#ifdef __ia64
+ register_stack_extend(cont, (VALUE*)rb_ia64_bsp());
+#else
+ cont_restore_1(cont);
+#endif
+}
+
+/*
+ * Document-class: Continuation
+ *
+ * Continuation objects are generated by
+ * <code>Kernel#callcc</code>. They hold a return address and execution
+ * context, allowing a nonlocal return to the end of the
+ * <code>callcc</code> block from anywhere within a program.
+ * Continuations are somewhat analogous to a structured version of C's
+ * <code>setjmp/longjmp</code> (although they contain more state, so
+ * you might consider them closer to threads).
+ *
+ * For instance:
+ *
+ * arr = [ "Freddie", "Herbie", "Ron", "Max", "Ringo" ]
+ * callcc{|$cc|}
+ * puts(message = arr.shift)
+ * $cc.call unless message =~ /Max/
+ *
+ * <em>produces:</em>
+ *
+ * Freddie
+ * Herbie
+ * Ron
+ * Max
+ *
+ * This (somewhat contrived) example allows the inner loop to abandon
+ * processing early:
+ *
+ * callcc {|cont|
+ * for i in 0..4
+ * print "\n#{i}: "
+ * for j in i*5...(i+1)*5
+ * cont.call() if j == 17
+ * printf "%3d", j
+ * end
+ * end
+ * }
+ * print "\n"
+ *
+ * <em>produces:</em>
+ *
+ * 0: 0 1 2 3 4
+ * 1: 5 6 7 8 9
+ * 2: 10 11 12 13 14
+ * 3: 15 16
+ */
+
+/*
+ * call-seq:
+ * callcc {|cont| block } => obj
+ *
+ * Generates a <code>Continuation</code> object, which it passes to the
+ * associated block. Performing a <em>cont</em><code>.call</code> will
+ * cause the <code>callcc</code> to return (as will falling through the
+ * end of the block). The value returned by the <code>callcc</code> is
+ * the value of the block, or the value passed to
+ * <em>cont</em><code>.call</code>. See class <code>Continuation</code>
+ * for more details. Also see <code>Kernel::throw</code> for
+ * an alternative mechanism for unwinding a call stack.
+ */
+
+static VALUE
+rb_callcc(VALUE self)
+{
+ volatile int called;
+ volatile VALUE val = cont_capture(&called);
+
+ if (called) {
+ return val;
+ }
+ else {
+ return rb_yield(val);
+ }
+}
+
+static VALUE
+make_passing_arg(int argc, VALUE *argv)
+{
+ switch(argc) {
+ case 0:
+ return Qnil;
+ case 1:
+ return argv[0];
+ default:
+ return rb_ary_new4(argc, argv);
+ }
+}
+
+/*
+ * call-seq:
+ * cont.call(args, ...)
+ * cont[args, ...]
+ *
+ * Invokes the continuation. The program continues from the end of the
+ * <code>callcc</code> block. If no arguments are given, the original
+ * <code>callcc</code> returns <code>nil</code>. If one argument is
+ * given, <code>callcc</code> returns it. Otherwise, an array
+ * containing <i>args</i> is returned.
+ *
+ * callcc {|cont| cont.call } #=> nil
+ * callcc {|cont| cont.call 1 } #=> 1
+ * callcc {|cont| cont.call 1, 2, 3 } #=> [1, 2, 3]
+ */
+
+static VALUE
+rb_cont_call(int argc, VALUE *argv, VALUE contval)
+{
+ rb_context_t *cont;
+ rb_thread_t *th = GET_THREAD();
+ GetContPtr(contval, cont);
+
+ if (cont->saved_thread.self != th->self) {
+ rb_raise(rb_eRuntimeError, "continuation called across threads");
+ }
+ if (cont->saved_thread.trap_tag != th->trap_tag) {
+ rb_raise(rb_eRuntimeError, "continuation called across trap");
+ }
+ if (cont->saved_thread.fiber) {
+ rb_context_t *fcont;
+ GetContPtr(cont->saved_thread.fiber, fcont);
+
+ if (th->fiber != cont->saved_thread.fiber) {
+ rb_raise(rb_eRuntimeError, "continuation called across fiber");
+ }
+
+ if (!fcont->alive) {
+ rb_raise(rb_eRuntimeError, "continuation called dead fiber");
+ }
+ }
+
+ cont->value = make_passing_arg(argc, argv);
+
+ cont_restore_0(cont, &contval);
+ return Qnil; /* unreachable */
+}
+
+/*********/
+/* fiber */
+/*********/
+
+#define FIBER_VM_STACK_SIZE (4 * 1024)
+
+static rb_context_t *
+fiber_alloc(VALUE klass)
+{
+ rb_context_t *cont = cont_new(klass);
+
+ cont->type = FIBER_CONTEXT;
+ cont->prev = Qnil;
+
+ return cont;
+}
+
+static VALUE
+fiber_new(VALUE klass, VALUE proc)
+{
+ rb_context_t *cont = fiber_alloc(klass);
+ VALUE contval = cont->self;
+ rb_thread_t *th = &cont->saved_thread;
+
+ /* initialize */
+ cont->vm_stack = 0;
+
+ th->stack = 0;
+ th->stack_size = FIBER_VM_STACK_SIZE;
+ th->stack = ALLOC_N(VALUE, th->stack_size);
+
+ th->cfp = (void *)(th->stack + th->stack_size);
+ th->cfp--;
+ th->cfp->pc = 0;
+ th->cfp->sp = th->stack + 1;
+ th->cfp->bp = 0;
+ th->cfp->lfp = th->stack;
+ *th->cfp->lfp = 0;
+ th->cfp->dfp = th->stack;
+ th->cfp->self = Qnil;
+ th->cfp->flag = 0;
+ th->cfp->iseq = 0;
+ th->cfp->proc = 0;
+ th->cfp->block_iseq = 0;
+ th->tag = 0;
+ th->local_storage = st_init_numtable();
+
+ th->first_proc = proc;
+
+ MEMCPY(&cont->jmpbuf, &th->root_jmpbuf, rb_jmpbuf_t, 1);
+
+ return contval;
+}
+
+VALUE
+rb_fiber_new(VALUE (*func)(ANYARGS), VALUE obj)
+{
+ return fiber_new(rb_cFiber, rb_proc_new(func, obj));
+}
+
+static VALUE
+rb_fiber_s_new(VALUE self)
+{
+ return fiber_new(self, rb_block_proc());
+}
+
+static VALUE
+return_fiber(void)
+{
+ rb_context_t *cont;
+ VALUE curr = rb_fiber_current();
+ GetContPtr(curr, cont);
+
+ if (cont->prev == Qnil) {
+ rb_thread_t *th = GET_THREAD();
+
+ if (th->root_fiber != curr) {
+ return th->root_fiber;
+ }
+ else {
+ rb_raise(rb_eFiberError, "can't yield from root fiber");
+ }
+ }
+ else {
+ VALUE prev = cont->prev;
+ cont->prev = Qnil;
+ return prev;
+ }
+}
+
+VALUE rb_fiber_transfer(VALUE fib, int argc, VALUE *argv);
+
+static void
+rb_fiber_terminate(rb_context_t *cont)
+{
+ VALUE value = cont->value;
+ cont->alive = Qfalse;
+ rb_fiber_transfer(return_fiber(), 1, &value);
+}
+
+void
+rb_fiber_start(void)
+{
+ rb_thread_t *th = GET_THREAD();
+ rb_context_t *cont;
+ rb_proc_t *proc;
+ VALUE args;
+ int state;
+
+ GetContPtr(th->fiber, cont);
+ TH_PUSH_TAG(th);
+ if ((state = EXEC_TAG()) == 0) {
+ GetProcPtr(cont->saved_thread.first_proc, proc);
+ args = cont->value;
+ cont->value = Qnil;
+ th->errinfo = Qnil;
+ th->local_lfp = proc->block.lfp;
+ th->local_svar = Qnil;
+
+ cont->value = vm_invoke_proc(th, proc, proc->block.self, 1, &args, 0);
+ }
+ TH_POP_TAG();
+
+ if (state) {
+ if (TAG_RAISE) {
+ th->thrown_errinfo = th->errinfo;
+ }
+ else {
+ th->thrown_errinfo =
+ vm_make_jump_tag_but_local_jump(state, th->errinfo);
+ }
+ RUBY_VM_SET_INTERRUPT(th);
+ }
+
+ rb_fiber_terminate(cont);
+ rb_bug("rb_fiber_start: unreachable");
+}
+
+VALUE
+rb_fiber_current()
+{
+ rb_thread_t *th = GET_THREAD();
+ if (th->fiber == 0) {
+ /* save root */
+ rb_context_t *cont = fiber_alloc(rb_cFiber);
+ cont->type = ROOT_FIBER_CONTEXT;
+ th->root_fiber = th->fiber = cont->self;
+ }
+ return th->fiber;
+}
+
+static VALUE
+fiber_store(rb_context_t *next_cont)
+{
+ rb_thread_t *th = GET_THREAD();
+ rb_context_t *cont;
+
+ if (th->fiber) {
+ GetContPtr(th->fiber, cont);
+ cont->saved_thread = *th;
+ }
+ else {
+ /* create current fiber */
+ cont = fiber_alloc(rb_cFiber); /* no need to allocate vm stack */
+ cont->type = ROOT_FIBER_CONTEXT;
+ th->root_fiber = th->fiber = cont->self;
+ }
+
+ cont_save_machine_stack(th, cont);
+
+ if (ruby_setjmp(cont->jmpbuf)) {
+ /* restored */
+ GetContPtr(th->fiber, cont);
+ return cont->value;
+ }
+ else {
+ return Qundef;
+ }
+}
+
+static inline VALUE
+fiber_switch(VALUE fib, int argc, VALUE *argv, int is_resume)
+{
+ VALUE value;
+ rb_context_t *cont;
+ rb_thread_t *th = GET_THREAD();
+
+ GetContPtr(fib, cont);
+
+ if (cont->saved_thread.self != th->self) {
+ rb_raise(rb_eFiberError, "fiber called across threads");
+ }
+ else if (cont->saved_thread.trap_tag != th->trap_tag) {
+ rb_raise(rb_eFiberError, "fiber called across trap");
+ }
+ else if (!cont->alive) {
+ rb_raise(rb_eFiberError, "dead fiber called");
+ }
+
+ if (is_resume) {
+ cont->prev = rb_fiber_current();
+ }
+
+ cont->value = make_passing_arg(argc, argv);
+
+ if ((value = fiber_store(cont)) == Qundef) {
+ cont_restore_0(cont, &value);
+ rb_bug("rb_fiber_resume: unreachable");
+ }
+
+ RUBY_VM_CHECK_INTS();
+
+ return value;
+}
+
+VALUE
+rb_fiber_transfer(VALUE fib, int argc, VALUE *argv)
+{
+ return fiber_switch(fib, argc, argv, 0);
+}
+
+VALUE
+rb_fiber_resume(VALUE fib, int argc, VALUE *argv)
+{
+ rb_context_t *cont;
+ GetContPtr(fib, cont);
+
+ if (cont->prev != Qnil) {
+ rb_raise(rb_eFiberError, "double resume");
+ }
+
+ return fiber_switch(fib, argc, argv, 1);
+}
+
+VALUE
+rb_fiber_yield(int argc, VALUE *argv)
+{
+ return rb_fiber_transfer(return_fiber(), argc, argv);
+}
+
+VALUE
+rb_fiber_alive_p(VALUE fib)
+{
+ rb_context_t *cont;
+ GetContPtr(fib, cont);
+ return cont->alive;
+}
+
+static VALUE
+rb_fiber_m_resume(int argc, VALUE *argv, VALUE fib)
+{
+ return rb_fiber_resume(fib, argc, argv);
+}
+
+static VALUE
+rb_fiber_m_transfer(int argc, VALUE *argv, VALUE fib)
+{
+ return rb_fiber_transfer(fib, argc, argv);
+}
+
+static VALUE
+rb_fiber_s_yield(int argc, VALUE *argv, VALUE klass)
+{
+ return rb_fiber_yield(argc, argv);
+}
+
+static VALUE
+rb_fiber_s_current(VALUE klass)
+{
+ return rb_fiber_current();
+}
+
+void
+Init_Cont(void)
+{
+ rb_cFiber = rb_define_class("Fiber", rb_cObject);
+ rb_undef_alloc_func(rb_cFiber);
+ rb_eFiberError = rb_define_class("FiberError", rb_eStandardError);
+ rb_define_singleton_method(rb_cFiber, "new", rb_fiber_s_new, 0);
+ rb_define_singleton_method(rb_cFiber, "yield", rb_fiber_s_yield, -1);
+ rb_define_method(rb_cFiber, "resume", rb_fiber_m_resume, -1);
+}
+
+void
+Init_Continuation_body(void)
+{
+ rb_cContinuation = rb_define_class("Continuation", rb_cObject);
+ rb_undef_alloc_func(rb_cContinuation);
+ rb_undef_method(CLASS_OF(rb_cContinuation), "new");
+ rb_define_method(rb_cContinuation, "call", rb_cont_call, -1);
+ rb_define_method(rb_cContinuation, "[]", rb_cont_call, -1);
+ rb_define_global_function("callcc", rb_callcc, 0);
+}
+
+void
+Init_Fiber_as_Coroutine(void)
+{
+ rb_define_method(rb_cFiber, "transfer", rb_fiber_m_transfer, -1);
+ rb_define_method(rb_cFiber, "alive?", rb_fiber_alive_p, 0);
+ rb_define_singleton_method(rb_cFiber, "current", rb_fiber_s_current, 0);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 02:18:45 +0000