SPVM-Go
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lib/SPVM/Go.pm
lib/SPVM/Go.spvm
lib/SPVM/Go/Channel.pm
lib/SPVM/Go/Channel.spvm
lib/SPVM/Go/Channel/Wait.pm
lib/SPVM/Go/Channel/Wait.spvm
lib/SPVM/Go/Coroutine.c
lib/SPVM/Go/Coroutine.config
lib/SPVM/Go/Coroutine.native/include/.gitkeep
lib/SPVM/Go/Coroutine.native/include/coro.h
lib/SPVM/Go/Coroutine.native/src/.gitkeep
lib/SPVM/Go/Coroutine.native/src/coro.c
lib/SPVM/Go/Coroutine.pm
lib/SPVM/Go/Coroutine.spvm
lib/SPVM/Go/Error/IOTimeout.pm
lib/SPVM/Go/Error/IOTimeout.spvm
lib/SPVM/Go/OS/Signal.pm
lib/SPVM/Go/OS/Signal.spvm
lib/SPVM/Go/Poll.pm
lib/SPVM/Go/Poll.spvm
lib/SPVM/Go/Schedule.pm
lib/SPVM/Go/Schedule.spvm
lib/SPVM/Go.pm view on Meta::CPAN
=head1 Repository
L<SPVM::Go - Github|https://github.com/yuki-kimoto/SPVM-Go>
=head1 See Also
=over 2
=item * L<The Go Programming Language|https://go.dev/> - SPVM::Go is a porting of goroutines.
=item * L<Coro> - SPVM::Go uses coroutines.
=back
=head1 Author
Yuki Kimoto C<kimoto.yuki@gmail.com>
=head1 Copyright & License
Copyright (c) 2023 Yuki Kimoto
lib/SPVM/Go/Channel.spvm view on Meta::CPAN
return undef;
}
if ($self->{write_waits}->length) {
my $write_wait = (Go::Channel::Wait)$self->{write_waits}->shift;
my $ok = 1;
&finish_wait($write_wait, $ok);
my $write_wait_coroutine = $write_wait->{coroutine};
unless ($write_wait_coroutine) {
$self->{length}--;
}
my $value = $write_wait->{value};
return $value;
}
else {
my $read_wait = Go::Channel::Wait->new;
my $schedule = $self->{schedule};
my $current_coroutine = $schedule->{current_coroutine};
unless ($current_coroutine) {
die "There is no currently running goroutine.";
}
$current_coroutine->{disable} = 1;
$read_wait->{coroutine} = $current_coroutine;
$self->{read_waits}->push($read_wait);
while (1) {
my $finish = $read_wait->{finish};
if ($finish) {
my $value = $read_wait->{value};
lib/SPVM/Go/Channel.spvm view on Meta::CPAN
if ($self->{write_waits}->length) {
if ($read_wait == $self->{read_waits}->get(0)) {
my $write_wait = (Go::Channel::Wait)$self->{write_waits}->shift;
my $ok = 1;
&finish_wait($write_wait, $ok);
my $value = $write_wait->{value};
my $write_wait_coroutine = $write_wait->{coroutine};
unless ($write_wait_coroutine) {
$self->{length}--;
}
$self->{read_waits}->shift;
return $value;
}
}
$schedule->schedule;
lib/SPVM/Go/Channel.spvm view on Meta::CPAN
my $capacity = $self->{capacity};
if ($length < $capacity) {
if ($self->{read_waits}->length) {
my $read_wait = (Go::Channel::Wait)$self->{read_waits}->shift;
$read_wait->{finish} = 1;
$read_wait->{ok} = 1;
my $read_wait_coroutine = $read_wait->{coroutine};
if ($read_wait_coroutine) {
$read_wait_coroutine->{disable} = 0;
}
$read_wait->{value} = $value;
return;
}
else {
my $write_wait = Go::Channel::Wait->new;
$write_wait->{value} = $value;
lib/SPVM/Go/Channel.spvm view on Meta::CPAN
return;
}
else {
my $write_wait = Go::Channel::Wait->new;
$write_wait->{value} = $value;
my $schedule = $self->{schedule};
my $current_coroutine = $schedule->{current_coroutine};
unless ($current_coroutine) {
die "There is no currently running goroutine.";
}
$current_coroutine->{disable} = 1;
$write_wait->{coroutine} = $current_coroutine;
$self->{write_waits}->push($write_wait);
while (1) {
my $finish = $write_wait->{finish};
if ($finish) {
return;
}
lib/SPVM/Go/Channel.spvm view on Meta::CPAN
method len : int () {
return $self->{length};
}
private static method finish_wait : void ($wait : Go::Channel::Wait, $ok : int) {
$wait->{finish} = 1;
$wait->{ok} = (byte)$ok;
my $wait_coroutine = $wait->{coroutine};
if ($wait_coroutine) {
$wait_coroutine->{disable} = 0;
}
}
}
lib/SPVM/Go/Channel/Wait.spvm view on Meta::CPAN
# Copyright (c) 2023 Yuki Kimoto
# MIT License
class Go::Channel::Wait {
allow Go::Schedule;
allow Go::Channel;
use Go::Coroutine;
has coroutine : Go::Coroutine;
has value : object;
has finish : byte;
has in_buffer : byte;
has ok : byte;
# Class Methods
lib/SPVM/Go/Coroutine.c view on Meta::CPAN
// Copyright (c) 2023 Yuki Kimoto
// MIT License
#include <assert.h>
#include "spvm_native.h"
#include "coro.h"
static const char* FILE_NAME = "Go/Coroutine.c";
static void coroutine_handler (void* obj_self) {
int32_t error_id = 0;
void** pointer_items = (void**)SPVM_NATIVE_GET_POINTER(obj_self);
SPVM_ENV* env = pointer_items[2];
SPVM_VALUE* stack = pointer_items[3];
void* obj_task = env->get_field_object_by_name(env, stack, obj_self, "task", &error_id, __func__, FILE_NAME, __LINE__);
lib/SPVM/Go/Coroutine.c view on Meta::CPAN
fprintf(env->api->runtime->get_spvm_stderr(env->runtime), "[An exception thrown in a goroutine is converted to a warning]\n");
env->print_stderr(env, stack, obj_exception);
fprintf(env->api->runtime->get_spvm_stderr(env->runtime), "\n");
}
void* obj_return_back = env->get_field_object_by_name(env, stack, obj_self, "return_back", &error_id, __func__, FILE_NAME, __LINE__);
assert(error_id == 0);
coro_context* coroutine_context = pointer_items[0];
void** coroutine_context_return_back_pointer_items = env->get_pointer(env, stack, obj_return_back);
coro_context* coroutine_context_return_back = coroutine_context_return_back_pointer_items[0];
assert(error_id == 0);
env->set_field_byte_by_name(env, stack, obj_self, "finished", 1, &error_id, __func__, FILE_NAME, __LINE__);
assert(error_id == 0);
coro_transfer(coroutine_context, coroutine_context_return_back);
assert(0);
}
int32_t SPVM__Go__Coroutine__init_coroutine(SPVM_ENV* env, SPVM_VALUE* stack) {
int32_t error_id = 0;
void* obj_self = stack[0].oval;
void* obj_task = env->get_field_object_by_name(env, stack, obj_self, "task", &error_id, __func__, FILE_NAME, __LINE__);
if (error_id) { return error_id; }
coro_context* coroutine_context = env->new_memory_block(env, stack, sizeof(coro_context));
struct coro_stack* coroutine_stack = NULL;
if (obj_task) {
coroutine_stack = env->new_memory_block(env, stack, sizeof(struct coro_stack));
if (!coro_stack_alloc(coroutine_stack, 0)) {
return env->die(env, stack, "coro_stack_alloc failed.", __func__, FILE_NAME, __LINE__);
}
coro_create(coroutine_context, coroutine_handler, obj_self, coroutine_stack->sptr, coroutine_stack->ssze);
}
else {
coro_create(coroutine_context, NULL, NULL, NULL, 0);
}
void** pointer_items = env->new_memory_block(env, stack, sizeof(void*) * 4);
SPVM_VALUE* coroutine_spvm_stack = env->new_stack(env);
pointer_items[0] = coroutine_context;
pointer_items[1] = coroutine_stack;
pointer_items[2] = env;
pointer_items[3] = coroutine_spvm_stack;
env->set_pointer(env, stack, obj_self, pointer_items);
return 0;
}
int32_t SPVM__Go__Coroutine__transfer(SPVM_ENV* env, SPVM_VALUE* stack) {
void* obj_coroutine_from = stack[0].oval;
if (!obj_coroutine_from) {
return env->die(env, stack, "$from must be defined.", __func__, FILE_NAME, __LINE__);
}
void** coroutine_from_pointer_items = env->get_pointer(env, stack, obj_coroutine_from);
coro_context* coroutine_context_from = coroutine_from_pointer_items[0];
void* obj_coroutine_to = stack[1].oval;
if (!obj_coroutine_to) {
return env->die(env, stack, "$to must be defined.", __func__, FILE_NAME, __LINE__);
}
void** coroutine_to_pointer_items = env->get_pointer(env, stack, obj_coroutine_to);
coro_context* coroutine_context_to = coroutine_to_pointer_items[0];
coro_transfer(coroutine_context_from, coroutine_context_to);
return 0;
}
int32_t SPVM__Go__Coroutine__DESTROY(SPVM_ENV* env, SPVM_VALUE* stack) {
void* obj_self = stack[0].oval;
void** pointer_items = env->get_pointer(env, stack, obj_self);
coro_context* coroutine_context = pointer_items[0];
struct coro_stack* coroutine_stack = pointer_items[1];
SPVM_VALUE* coroutine_spvm_stack = pointer_items[3];
env->free_stack(env, coroutine_spvm_stack);
if (coroutine_stack) {
coro_destroy(coroutine_context);
coro_stack_free(coroutine_stack);
env->free_memory_block(env, stack, coroutine_stack);
}
env->free_memory_block(env, stack, coroutine_context);
env->free_memory_block(env, stack, pointer_items);
return 0;
}
lib/SPVM/Go/Coroutine.config view on Meta::CPAN
# Copyright (c) 2023 Yuki Kimoto
# MIT License
use strict;
use warnings;
use Config;
use SPVM::Builder::Config;
sub get_coro_define {
# Copied from Coro/Makefile.PL
sub have_inc($) {
scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
}
my $iface;
my $LIBS = [];
# default to assembly on x86 and x86_64 sometimes
my $iface_asm = $Config{archname} =~ /^(i[3456]86|amd64|x86_64|MSWin32-x64)-/ ? "a" : undef;
lib/SPVM/Go/Coroutine.config view on Meta::CPAN
my $stacksize = $^O eq "linux" && $] < 5.008008 ? 128 * 1024 : 16384;
$DEFINE .= " -DCORO_STACKSIZE=$stacksize";
return $DEFINE;
}
my $config = SPVM::Builder::Config->new_gnu99(file => __FILE__);
my $coro_define = &get_coro_define();
# TODO: why do heading spaces have an compile error?
$coro_define =~ s/^ //;
my @coro_define = split(/\s+/, $coro_define);
$config->add_ccflag(@coro_define);
my @source_files = qw(
coro.c
);
$config->add_source_file(@source_files);
$config;
lib/SPVM/Go/Coroutine.native/include/coro.h view on Meta::CPAN
* version of this file under the BSD license, indicate your decision
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file under
* either the BSD or the GPL.
*
* This library is modelled strictly after Ralf S. Engelschalls article at
* http://www.gnu.org/software/pth/rse-pmt.ps. So most of the credit must
* go to Ralf S. Engelschall <rse@engelschall.com>.
*
* This coroutine library is very much stripped down. You should either
* build your own process abstraction using it or - better - just use GNU
* Portable Threads, http://www.gnu.org/software/pth/.
*
*/
/*
* 2006-10-26 Include stddef.h on OS X to work around one of its bugs.
* Reported by Michael_G_Schwern.
* 2006-11-26 Use _setjmp instead of setjmp on GNU/Linux.
* 2007-04-27 Set unwind frame info if gcc 3+ and ELF is detected.
lib/SPVM/Go/Coroutine.native/include/coro.h view on Meta::CPAN
* 2007-05-02 Add assembly versions for x86 and amd64 (to avoid reliance
* on SIGUSR2 and sigaltstack in Crossfire).
* 2008-01-21 Disable CFI usage on anything but GNU/Linux.
* 2008-03-02 Switched to 2-clause BSD license with GPL exception.
* 2008-04-04 New (but highly unrecommended) pthreads backend.
* 2008-04-24 Reinstate CORO_LOSER (had wrong stack adjustments).
* 2008-10-30 Support assembly method on x86 with and without frame pointer.
* 2008-11-03 Use a global asm statement for CORO_ASM, idea by pippijn.
* 2008-11-05 Hopefully fix misaligned stacks with CORO_ASM/SETJMP.
* 2008-11-07 rbp wasn't saved in CORO_ASM on x86_64.
* introduce coro_destroy, which is a nop except for pthreads.
* speed up CORO_PTHREAD. Do no longer leak threads either.
* coro_create now allows one to create source coro_contexts.
* do not rely on makecontext passing a void * correctly.
* try harder to get _setjmp/_longjmp.
* major code cleanup/restructuring.
* 2008-11-10 the .cfi hacks are no longer needed.
* 2008-11-16 work around a freebsd pthread bug.
* 2008-11-19 define coro_*jmp symbols for easier porting.
* 2009-06-23 tentative win32-backend support for mingw32 (Yasuhiro Matsumoto).
* 2010-12-03 tentative support for uclibc (which lacks all sorts of things).
* 2011-05-30 set initial callee-saved-registers to zero with CORO_ASM.
* use .cfi_undefined rip on linux-amd64 for better backtraces.
* 2011-06-08 maybe properly implement weird windows amd64 calling conventions.
* 2011-07-03 rely on __GCC_HAVE_DWARF2_CFI_ASM for cfi detection.
* 2011-08-08 cygwin trashes stacks, use pthreads with double stack on cygwin.
* 2012-12-04 reduce misprediction penalty for x86/amd64 assembly switcher.
* 2012-12-05 experimental fiber backend (allocates stack twice).
* 2012-12-07 API version 3 - add coro_stack_alloc/coro_stack_free.
* 2012-12-21 valgrind stack registering was broken.
* 2015-12-05 experimental asm be for arm7, based on a patch by Nick Zavaritsky.
* use __name__ for predefined symbols, as in libecb.
* enable guard pages on arm, aarch64 and mips.
* 2016-08-27 try to disable _FORTIFY_SOURCE with CORO_SJLJ, as it
* breaks setjmp/longjmp. Also disable CORO_ASM for asm by default,
* as it was reported to crash.
* 2016-11-18 disable cfi_undefined again - backtraces might be worse, but
* compile compatibility is improved.
* 2018-08-14 use a completely different pthread strategy that should allow
* sharing of coroutines among different threads. this would
* undefined behaviour before as mutexes would be unlocked on
* a different thread. overall, this might be slower than
* using a pipe for synchronisation, but pipes eat fd's...
*/
#ifndef CORO_H
#define CORO_H
#if __cplusplus
extern "C" {
#endif
/*
* This library consists of only three files
* coro.h, coro.c and LICENSE (and optionally README)
*
* It implements what is known as coroutines, in a hopefully
* portable way.
*
* All compiletime symbols must be defined both when including coro.h
* (using libcoro) as well as when compiling coro.c (the implementation).
*
* You can manually specify which flavour you want. If you don't define
* any of these, libcoro tries to choose a safe and fast default:
*
* -DCORO_UCONTEXT
*
* This flavour uses SUSv2's get/set/swap/makecontext functions that
* unfortunately only some unices support, and is quite slow.
*
* -DCORO_SJLJ
*
* This flavour uses SUSv2's setjmp/longjmp and sigaltstack functions to
* do it's job. Coroutine creation is much slower than UCONTEXT, but
lib/SPVM/Go/Coroutine.native/include/coro.h view on Meta::CPAN
* Hand coded assembly, known to work only on a few architectures/ABI:
* GCC + arm7/x86/IA32/amd64/x86_64 + GNU/Linux and a few BSDs. Fastest
* choice, if it works.
*
* -DCORO_PTHREAD
*
* Use the pthread API. You have to provide <pthread.h> and -lpthread.
* This is likely the slowest backend, and it also does not support fork(),
* so avoid it at all costs.
*
* If you define neither of these symbols, coro.h will try to autodetect
* the best/safest model. To help with the autodetection, you should check
* (e.g. using autoconf) and define the following symbols: HAVE_UCONTEXT_H
* / HAVE_SETJMP_H / HAVE_SIGALTSTACK.
*/
/*
* Changes when the API changes incompatibly.
* This is ONLY the API version - there is no ABI compatibility between releases.
*
* Changes in API version 2:
* replaced bogus -DCORO_LOOSE with grammatically more correct -DCORO_LOSER
* Changes in API version 3:
* introduced stack management (CORO_STACKALLOC)
*/
#define CORO_VERSION 3
#include <stddef.h>
/*
* This is the type for the initialization function of a new coroutine.
*/
typedef void (*coro_func)(void *);
/*
* A coroutine state is saved in the following structure. Treat it as an
* opaque type. errno and sigmask might be saved, but don't rely on it,
* implement your own switching primitive if you need that.
*/
typedef struct coro_context coro_context;
/*
* This function creates a new coroutine. Apart from a pointer to an
* uninitialised coro_context, it expects a pointer to the entry function
* and the single pointer value that is given to it as argument.
*
* Allocating/deallocating the stack is your own responsibility.
*
* As a special case, if coro, arg, sptr and ssze are all zero,
* then an "empty" coro_context will be created that is suitable
* as an initial source for coro_transfer.
*
* This function is not reentrant, but putting a mutex around it
* will work.
*/
void coro_create (coro_context *ctx, /* an uninitialised coro_context */
coro_func coro, /* the coroutine code to be executed */
void *arg, /* a single pointer passed to the coro */
void *sptr, /* start of stack area */
size_t ssze); /* size of stack area in bytes */
/*
* The following prototype defines the coroutine switching function. It is
* sometimes implemented as a macro, so watch out.
*
* This function is thread-safe and reentrant.
*/
#if 0
void coro_transfer (coro_context *prev, coro_context *next);
#endif
/*
* The following prototype defines the coroutine destroy function. It
* is sometimes implemented as a macro, so watch out. It also serves no
* purpose unless you want to use the CORO_PTHREAD backend, where it is
* used to clean up the thread. You are responsible for freeing the stack
* and the context itself.
*
* This function is thread-safe and reentrant.
*/
#if 0
void coro_destroy (coro_context *ctx);
#endif
/*****************************************************************************/
/* optional stack management */
/*****************************************************************************/
/*
* You can disable all of the stack management functions by
* defining CORO_STACKALLOC to 0. Otherwise, they are enabled by default.
*
* If stack management is enabled, you can influence the implementation via these
* symbols:
*
* -DCORO_USE_VALGRIND
*
* If defined, then libcoro will include valgrind/valgrind.h and register
* and unregister stacks with valgrind.
*
* -DCORO_GUARDPAGES=n
*
* libcoro will try to use the specified number of guard pages to protect against
* stack overflow. If n is 0, then the feature will be disabled. If it isn't
* defined, then libcoro will choose a suitable default. If guardpages are not
* supported on the platform, then the feature will be silently disabled.
*/
#ifndef CORO_STACKALLOC
# define CORO_STACKALLOC 1
#endif
#if CORO_STACKALLOC
/*
* The only allowed operations on these struct members is to read the
* "sptr" and "ssze" members to pass it to coro_create, to read the "sptr"
* member to see if it is false, in which case the stack isn't allocated,
* and to set the "sptr" member to 0, to indicate to coro_stack_free to
* not actually do anything.
*/
struct coro_stack
{
void *sptr;
size_t ssze;
#if CORO_USE_VALGRIND
int valgrind_id;
#endif
};
/*
* Try to allocate a stack of at least the given size and return true if
* successful, or false otherwise.
*
* The size is *NOT* specified in bytes, but in units of sizeof (void *),
* i.e. the stack is typically 4(8) times larger on 32 bit(64 bit) platforms
* then the size passed in.
*
* If size is 0, then a "suitable" stack size is chosen (usually 1-2MB).
*/
int coro_stack_alloc (struct coro_stack *stack, unsigned int size);
/*
* Free the stack allocated by coro_stack_alloc again. It is safe to
* call this function on the coro_stack structure even if coro_stack_alloc
* failed.
*/
void coro_stack_free (struct coro_stack *stack);
#endif
/*
* That was it. No other user-serviceable parts below here.
*/
/*****************************************************************************/
#if !defined CORO_LOSER && !defined CORO_UCONTEXT \
lib/SPVM/Go/Coroutine.native/include/coro.h view on Meta::CPAN
error unknown or unsupported architecture
# endif
#endif
/*****************************************************************************/
#if CORO_UCONTEXT
# include <ucontext.h>
struct coro_context
{
ucontext_t uc;
};
# define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
# define coro_destroy(ctx) (void *)(ctx)
#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
# if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
# define _GNU_SOURCE /* for glibc */
# endif
/* try to disable well-meant but buggy checks in some libcs */
# ifdef _FORTIFY_SOURCE
# undef _FORTIFY_SOURCE
lib/SPVM/Go/Coroutine.native/include/coro.h view on Meta::CPAN
/* solaris is hopelessly borked, it expands _XOPEN_UNIX to nothing */
# if __sun
# undef _XOPEN_UNIX
# define _XOPEN_UNIX 1
# endif
# include <setjmp.h>
# if _XOPEN_UNIX > 0 || defined (_setjmp)
# define coro_jmp_buf jmp_buf
# define coro_setjmp(env) _setjmp (env)
# define coro_longjmp(env) _longjmp ((env), 1)
# elif CORO_LOSER
# define coro_jmp_buf jmp_buf
# define coro_setjmp(env) setjmp (env)
# define coro_longjmp(env) longjmp ((env), 1)
# else
# define coro_jmp_buf sigjmp_buf
# define coro_setjmp(env) sigsetjmp (env, 0)
# define coro_longjmp(env) siglongjmp ((env), 1)
# endif
struct coro_context
{
coro_jmp_buf env;
};
# define coro_transfer(p,n) do { if (!coro_setjmp (((struct coro_context*)p)->env)) coro_longjmp (((struct coro_context*)n)->env); } while (0)
# define coro_destroy(ctx) (void *)(ctx)
#elif defined CORO_ASM
struct coro_context
{
void **sp; /* must be at offset 0 */
};
#if __i386__ || __x86_64__
void __attribute__ ((__noinline__, __regparm__(2)))
#else
void __attribute__ ((__noinline__))
#endif
coro_transfer (coro_context *prev, coro_context *next);
# define coro_destroy(ctx) (void *)(ctx)
#elif CORO_PTHREAD
# include <pthread.h>
extern pthread_mutex_t coro_mutex;
struct coro_context
{
int flags;
pthread_cond_t cv;
};
void coro_transfer (coro_context *prev, coro_context *next);
void coro_destroy (coro_context *ctx);
#elif CORO_FIBER
struct coro_context
{
void *fiber;
/* only used for initialisation */
coro_func coro;
void *arg;
};
void coro_transfer (coro_context *prev, coro_context *next);
void coro_destroy (coro_context *ctx);
#endif
#if __cplusplus
}
#endif
#endif
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete the
* provisions above, a recipient may use your version of this file under
* either the BSD or the GPL.
*
* This library is modelled strictly after Ralf S. Engelschalls article at
* http://www.gnu.org/software/pth/rse-pmt.ps. So most of the credit must
* go to Ralf S. Engelschall <rse@engelschall.com>.
*/
#include "coro.h"
#include <stddef.h>
#include <string.h>
/*****************************************************************************/
/* ucontext/setjmp/asm backends */
/*****************************************************************************/
#if CORO_UCONTEXT || CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX || CORO_ASM
# if CORO_UCONTEXT
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
# endif
# include <stdlib.h>
# if CORO_SJLJ
# include <stdio.h>
# include <signal.h>
# include <unistd.h>
# endif
static coro_func coro_init_func;
static void *coro_init_arg;
static coro_context *new_coro, *create_coro;
static void
coro_init (void)
{
volatile coro_func func = coro_init_func;
volatile void *arg = coro_init_arg;
coro_transfer (new_coro, create_coro);
#if __GCC_HAVE_DWARF2_CFI_ASM && __amd64
/*asm (".cfi_startproc");*/
/*asm (".cfi_undefined rip");*/
#endif
func ((void *)arg);
#if __GCC_HAVE_DWARF2_CFI_ASM && __amd64
/*asm (".cfi_endproc");*/
#endif
/* the new coro returned. bad. just abort() for now */
abort ();
}
# if CORO_SJLJ
static volatile int trampoline_done;
/* trampoline signal handler */
static void
trampoline (int sig)
{
if (coro_setjmp (new_coro->env))
coro_init (); /* start it */
else
trampoline_done = 1;
}
# endif
# if CORO_ASM
#if __arm__ && \
(defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
#define CORO_ARM 1
#endif
#if _WIN32 || __CYGWIN__
#define CORO_WIN_TIB 1
#endif
asm (
"\t.text\n"
#if _WIN32 || __CYGWIN__
"\t.globl _coro_transfer\n"
"_coro_transfer:\n"
#else
"\t.globl coro_transfer\n"
"coro_transfer:\n"
#endif
/* windows, of course, gives a shit on the amd64 ABI and uses different registers */
/* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */
#if __amd64
#if _WIN32 || __CYGWIN__
#define NUM_SAVED 29
"\tsubq $168, %rsp\t" /* one dummy qword to improve alignment */
"\tmovaps %xmm6, (%rsp)\n"
"\tmovaps %xmm7, 16(%rsp)\n"
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
#endif
#else
#error unsupported architecture
#endif
);
# endif
void
coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, size_t ssize)
{
coro_context nctx;
# if CORO_SJLJ
stack_t ostk, nstk;
struct sigaction osa, nsa;
sigset_t nsig, osig;
# endif
if (!coro)
return;
coro_init_func = coro;
coro_init_arg = arg;
new_coro = ctx;
create_coro = &nctx;
# if CORO_SJLJ
/* we use SIGUSR2. first block it, then fiddle with it. */
sigemptyset (&nsig);
sigaddset (&nsig, SIGUSR2);
sigprocmask (SIG_BLOCK, &nsig, &osig);
nsa.sa_handler = trampoline;
sigemptyset (&nsa.sa_mask);
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
abort ();
if (~ostk.ss_flags & SS_DISABLE)
sigaltstack (&ostk, 0);
sigaction (SIGUSR2, &osa, 0);
sigprocmask (SIG_SETMASK, &osig, 0);
# elif CORO_LOSER
coro_setjmp (ctx->env);
#if __CYGWIN__ && __i386__
ctx->env[8] = (long) coro_init;
ctx->env[7] = (long) ((char *)sptr + ssize) - sizeof (long);
#elif __CYGWIN__ && __x86_64__
ctx->env[7] = (long) coro_init;
ctx->env[6] = (long) ((char *)sptr + ssize) - sizeof (long);
#elif defined __MINGW32__
ctx->env[5] = (long) coro_init;
ctx->env[4] = (long) ((char *)sptr + ssize) - sizeof (long);
#elif defined _M_IX86
((_JUMP_BUFFER *)&ctx->env)->Eip = (long) coro_init;
((_JUMP_BUFFER *)&ctx->env)->Esp = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
#elif defined _M_AMD64
((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64) coro_init;
((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
#elif defined _M_IA64
((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64) coro_init;
((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64);
#else
#error "microsoft libc or architecture not supported"
#endif
# elif CORO_LINUX
coro_setjmp (ctx->env);
#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP)
ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
ctx->env[0].__jmpbuf[JB_SP] = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
#elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__)
ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init;
ctx->env[0].__jmpbuf[0].__sp = (int *) ((char *)sptr + ssize) - sizeof (long);
#elif defined (__GNU_LIBRARY__) && defined (__i386__)
ctx->env[0].__jmpbuf[0].__pc = (char *) coro_init;
ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long);
#elif defined (__GNU_LIBRARY__) && defined (__x86_64__)
ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init;
ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long);
#else
#error "linux libc or architecture not supported"
#endif
# elif CORO_IRIX
coro_setjmp (ctx->env, 0);
ctx->env[JB_PC] = (__uint64_t)coro_init;
ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long);
# elif CORO_ASM
#if __i386__ || __x86_64__
ctx->sp = (void **)(ssize + (char *)sptr);
*--ctx->sp = (void *)abort; /* needed for alignment only */
*--ctx->sp = (void *)coro_init;
#if CORO_WIN_TIB
*--ctx->sp = 0; /* ExceptionList */
*--ctx->sp = (char *)sptr + ssize; /* StackBase */
*--ctx->sp = sptr; /* StackLimit */
#endif
#elif CORO_ARM
/* return address stored in lr register, don't push anything */
#else
#error unsupported architecture
#endif
ctx->sp -= NUM_SAVED;
memset (ctx->sp, 0, sizeof (*ctx->sp) * NUM_SAVED);
#if __i386__ || __x86_64__
/* done already */
#elif CORO_ARM
ctx->sp[0] = coro; /* r4 */
ctx->sp[1] = arg; /* r5 */
ctx->sp[8] = (char *)coro_init; /* lr */
#else
#error unsupported architecture
#endif
# elif CORO_UCONTEXT
getcontext (&(ctx->uc));
ctx->uc.uc_link = 0;
ctx->uc.uc_stack.ss_sp = sptr;
ctx->uc.uc_stack.ss_size = (size_t)ssize;
ctx->uc.uc_stack.ss_flags = 0;
makecontext (&(ctx->uc), (void (*)())coro_init, 0);
# endif
coro_transfer (create_coro, new_coro);
}
/*****************************************************************************/
/* pthread backend */
/*****************************************************************************/
#elif CORO_PTHREAD
/* this mutex will be locked by the running coroutine */
pthread_mutex_t coro_mutex = PTHREAD_MUTEX_INITIALIZER;
struct coro_init_args
{
coro_func func;
void *arg;
coro_context *self, *main;
};
static void *
coro_init (void *args_)
{
struct coro_init_args *args = (struct coro_init_args *)args_;
coro_func func = args->func;
void *arg = args->arg;
coro_transfer (args->self, args->main);
func (arg);
return 0;
}
void
coro_transfer (coro_context *prev, coro_context *next)
{
pthread_mutex_lock (&coro_mutex);
next->flags = 1;
pthread_cond_signal (&next->cv);
prev->flags = 0;
while (!prev->flags)
pthread_cond_wait (&prev->cv, &coro_mutex);
if (prev->flags == 2)
{
pthread_mutex_unlock (&coro_mutex);
pthread_cond_destroy (&prev->cv);
pthread_detach (pthread_self ());
pthread_exit (0);
}
pthread_mutex_unlock (&coro_mutex);
}
void
coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, size_t ssize)
{
static coro_context nctx;
static int once;
if (!once)
{
once = 1;
pthread_cond_init (&nctx.cv, 0);
}
pthread_cond_init (&ctx->cv, 0);
if (coro)
{
pthread_attr_t attr;
struct coro_init_args args;
pthread_t id;
args.func = coro;
args.arg = arg;
args.self = ctx;
args.main = &nctx;
pthread_attr_init (&attr);
#if __UCLIBC__
/* exists, but is borked */
/*pthread_attr_setstacksize (&attr, (size_t)ssize);*/
#elif __CYGWIN__
/* POSIX, not here */
pthread_attr_setstacksize (&attr, (size_t)ssize);
#else
pthread_attr_setstack (&attr, sptr, (size_t)ssize);
#endif
pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
pthread_create (&id, &attr, coro_init, &args);
coro_transfer (args.main, args.self);
}
}
void
coro_destroy (coro_context *ctx)
{
pthread_mutex_lock (&coro_mutex);
ctx->flags = 2;
pthread_cond_signal (&ctx->cv);
pthread_mutex_unlock (&coro_mutex);
}
/*****************************************************************************/
/* fiber backend */
/*****************************************************************************/
#elif CORO_FIBER
#define WIN32_LEAN_AND_MEAN
#if _WIN32_WINNT < 0x0400
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
#endif
#include <windows.h>
VOID CALLBACK
coro_init (PVOID arg)
{
coro_context *ctx = (coro_context *)arg;
ctx->coro (ctx->arg);
}
void
coro_transfer (coro_context *prev, coro_context *next)
{
if (!prev->fiber)
{
prev->fiber = GetCurrentFiber ();
if (prev->fiber == 0 || prev->fiber == (void *)0x1e00)
prev->fiber = ConvertThreadToFiber (0);
}
SwitchToFiber (next->fiber);
}
void
coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, size_t ssize)
{
ctx->fiber = 0;
ctx->coro = coro;
ctx->arg = arg;
if (!coro)
return;
ctx->fiber = CreateFiber (ssize, coro_init, ctx);
}
void
coro_destroy (coro_context *ctx)
{
DeleteFiber (ctx->fiber);
}
#else
#error unsupported backend
#endif
/*****************************************************************************/
/* stack management */
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
#ifndef CORO_GUARDPAGES
# define CORO_GUARDPAGES 0
#endif
#if !PAGESIZE
#if !CORO_MMAP
#define PAGESIZE 4096
#else
static size_t
coro_pagesize (void)
{
static size_t pagesize;
if (!pagesize)
pagesize = sysconf (_SC_PAGESIZE);
return pagesize;
}
#define PAGESIZE coro_pagesize ()
#endif
#endif
int
coro_stack_alloc (struct coro_stack *stack, unsigned int size)
{
if (!size)
size = 256 * 1024;
stack->sptr = 0;
stack->ssze = ((size_t)size * sizeof (void *) + PAGESIZE - 1) / PAGESIZE * PAGESIZE;
#if CORO_FIBER
stack->sptr = (void *)stack;
lib/SPVM/Go/Coroutine.native/src/coro.c view on Meta::CPAN
stack->valgrind_id = VALGRIND_STACK_REGISTER ((char *)base, ((char *)base) + ssze - CORO_GUARDPAGES * PAGESIZE);
#endif
stack->sptr = base;
return 1;
#endif
}
void
coro_stack_free (struct coro_stack *stack)
{
#if CORO_FIBER
/* nop */
#else
#if CORO_USE_VALGRIND
VALGRIND_STACK_DEREGISTER (stack->valgrind_id);
#endif
#if CORO_MMAP
if (stack->sptr)
lib/SPVM/Go/Coroutine.pm view on Meta::CPAN
1;
=head1 Name
SPVM::Go::Coroutine - Coroutines
=head1 Description
The Go::Coroutine class in L<SPVM> has methods to manipulate coroutines.
=head1 Usage
use Go::Coroutine;
=head1 Copyright & License
Copyright (c) 2023 Yuki Kimoto
MIT License
lib/SPVM/Go/Coroutine.spvm view on Meta::CPAN
# Class Methods
static method new : Go::Coroutine ($task : Callback = undef, $return_back : Go::Coroutine = undef) {
my $self = new Go::Coroutine;
$self->{task} = $task;
$self->{return_back} = $return_back;
$self->init_coroutine;
$self->{fd} = -1;
return $self;
}
native static method transfer : void ($from : Go::Coroutine, $to : Go::Coroutine);
# Instance Methods
native private method init_coroutine : void ();
native method DESTROY : void ();
}
lib/SPVM/Go/Poll.spvm view on Meta::CPAN
class Go::Poll {
allow Go::Schedule;
allow Go::Schedule::Task;
use Go::Coroutine;
use List;
use Sys::Poll::PollfdArray;
use Sys::Poll::Constant as POLL;
use Sys::Poll;
has coroutines_h : Hash of Go::Coroutine;
static method new : Go::Poll () {
my $self = new Go::Poll;
$self->{coroutines_h} = Hash->new;
return $self;
}
private method check : void () {
my $poll_coroutines_h = $self->{coroutines_h};
my $poll_coroutines_length = $poll_coroutines_h->keys_length;
if ($poll_coroutines_length > 0) {
my $poll_fd_array = Sys::Poll::PollfdArray->new($poll_coroutines_length);
my $poll_coroutine_addresses = $poll_coroutines_h->keys;
my $poll_index = 0;
for my $address (@$poll_coroutine_addresses) {
my $poll_coroutine = (Go::Coroutine)$poll_coroutines_h->get($address);
my $fd = $poll_coroutine->{fd};
$poll_fd_array->set_fd($poll_index, $fd);
my $is_write = $poll_coroutine->{is_write};
if ($is_write) {
$poll_fd_array->set_events($poll_index, POLL->POLLOUT);
}
else {
$poll_fd_array->set_events($poll_index, POLL->POLLIN);
}
$poll_coroutine->{poll_index} = $poll_index;
$poll_index++;
}
my $status = Sys::Poll->poll($poll_fd_array, $poll_coroutines_length, 0);
for my $address (@$poll_coroutine_addresses) {
my $poll_coroutine = (Go::Coroutine)$poll_coroutines_h->get($address);
my $poll_index = $poll_coroutine->{poll_index};
my $revent = $poll_fd_array->revents($poll_index);
my $io_ready = 0;
if ($poll_coroutine->{is_write}) {
if ($revent & POLL->POLLOUT) {
$io_ready = 1;
}
}
else {
if ($revent & POLL->POLLIN) {
$io_ready = 1;
}
}
my $io_timeout_occur = 0;
unless ($io_ready) {
my $deadline_base_io_timeout = $poll_coroutine->{deadline_base_io_timeout};
if ($deadline_base_io_timeout) {
my $io_timeout = $poll_coroutine->{io_timeout};
$io_timeout_occur = &check_io_timeout($deadline_base_io_timeout, $io_timeout);
$poll_coroutine->{io_timeout_occur} = (byte)$io_timeout_occur;
}
}
if ($io_ready || $io_timeout_occur) {
my $ready_coroutine = (Go::Coroutine)$poll_coroutines_h->delete($address);
$ready_coroutine->{disable} = 0;
$ready_coroutine->{fd} = -1;
$ready_coroutine->{deadline_base_io_timeout} = undef;
}
}
}
}
private static method check_io_timeout : int ($deadline_base : Sys::Time::Timespec, $timeout : double) {
my $deadline_now = Go::Schedule->clock_gettime;
my $interval = Sys::Time::Util->timespec_interval($deadline_base, $deadline_now);
lib/SPVM/Go/Poll.spvm view on Meta::CPAN
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Check IO timeout(Timeout:%f, ElapsedTime:%f, TimeoutOccur:%d).", [(object)$timeout, $interval, $timeout_occur]));
}
return $timeout_occur;
}
method DESTROY : void () {
my $poll_coroutines_h = $self->{coroutines_h};
my $poll_coroutniens_length = $poll_coroutines_h->keys_length;
unless ($poll_coroutniens_length == 0) {
die "[Unexpected Error]The number of goroutines for IO must be 0 in DESTROY.";
}
}
}
lib/SPVM/Go/Schedule.spvm view on Meta::CPAN
use Sys::Time::Timespec;
use Go::Poll;
use Thread::ID;
use Thread::ThisThread;
use Go::Error::IOTimeout;
use Error::System;
use Time::HiRes;
use Sys::Time::Util;
use Sys::Time::Constant as TIME;
has coroutines : List of Go::Coroutine;
has current_coroutine : Go::Coroutine;
has schedule_task_coroutine : Go::Coroutine;
has poll : Go::Poll;
has thread_id : Thread::ID;
# Class Methods
private static method new : Go::Schedule () {
my $self = new Go::Schedule;
my $coroutines = List->new(new Go::Coroutine[0]);;
$self->{coroutines} = $coroutines;
$self->{poll} = Go::Poll->new;
$self->{thread_id} = Thread::ThisThread->get_id;
return $self;
}
private static method clock_gettime : Sys::Time::Timespec () {
my $now_ts = (Sys::Time::Timespec)undef;
lib/SPVM/Go/Schedule.spvm view on Meta::CPAN
}
private method schedule : int ($after : double = 0, $fd : int = -1, $is_write : int = 0, $timeout : double = 0) {
my $called_from_main_thread = Thread::ID->eq(Thread::ThisThread->get_id, $self->{thread_id});
unless ($called_from_main_thread) {
die "The schedule method in the Go::Schedule class must be called from the main thread.";
}
my $current_coroutine = $self->{current_coroutine};
if ($current_coroutine) {
my $schedule_task_coroutine = $self->{schedule_task_coroutine};
unless ($after <= Fn->INT_MAX) {
die "\$after must be less than or equal to Fn->INT_MAX.";
}
if ($fd >= 0 && $after > 0) {
die "The arguments must not both \$fd is greater than or equal to 0 and \$after is greater than 0.";
}
# IO
if ($fd >= 0) {
$current_coroutine->{fd} = $fd;
$current_coroutine->{is_write} = (byte)$is_write;
unless ($timeout >= 0) {
die "\$timeout must be greater than or equal to 0.";
}
unless ($timeout <= Fn->INT_MAX) {
die "\$timeout must be less than or equal to Fn->INT_MAX.";
}
# IO timeout
if ($timeout > 0) {
$current_coroutine->{deadline_base_io_timeout} = &clock_gettime;
$current_coroutine->{io_timeout} = $timeout;
}
}
else {
$current_coroutine->{fd} = -1;
# Timer
if ($after > 0) {
$current_coroutine->{deadline_base_timer} = &clock_gettime;
$current_coroutine->{after} = $after;
}
}
Go::Coroutine->transfer($current_coroutine, $schedule_task_coroutine);
if ($current_coroutine->{io_timeout_occur}) {
$current_coroutine->{io_timeout_occur} = 0;
die Go::Error::IOTimeout "IO timeout occur";
}
}
else {
if ($after > 0) {
die "\$after(or \$timeout) must be given in a goroutine.";
}
my $return_back = Go::Coroutine->new;
my $schedule_task = Go::Schedule::Task->new;
$schedule_task->{schedule} = $self;
my $schedule_task_coroutine = Go::Coroutine->new($schedule_task);
$schedule_task_coroutine->{return_back} = $return_back;
$self->{schedule_task_coroutine} = $schedule_task_coroutine;
Go::Coroutine->transfer($return_back, $schedule_task_coroutine);
$schedule_task->{schedule} = undef;
$self->{schedule_task_coroutine} = undef;
$self->{current_coroutine} = undef;
$schedule_task = undef;
$schedule_task_coroutine->{task} = undef;
}
}
private method add_task : void ($task : Callback) {
my $coroutine = Go::Coroutine->new($task);
$self->{coroutines}->push($coroutine);
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Push new goroutine with the callback %p.", [(object)$task]));
}
}
}
lib/SPVM/Go/Schedule/Task.spvm view on Meta::CPAN
private method : void () {
my $schedule = $self->{schedule};
my $poll = $schedule->{poll};
my $loop_count = 0;
while (1) {
my $coroutines = $schedule->{coroutines};
if ($coroutines->length == 0) {
last;
}
my $check_io = $loop_count % 60 == 0;
if ($check_io) {
$poll->check;
}
else {
my $coroutine = (Go::Coroutine)undef;
if ($coroutines->length > 0) {
$coroutine = (Go::Coroutine)$coroutines->get(0);
}
if ($coroutine->{finished}) {
$coroutines->shift;
$schedule->{current_coroutine} = undef;
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]End goroutine (Callback:%p, QueueNum:%d.)", [(object)$coroutine->{task}, $coroutines->length]));
}
}
elsif ($coroutine->{disable}) {
$coroutines->push($coroutines->shift);
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Rotate IO goroutine (Callback:%p, QueueNum:%d.)", [(object)$coroutine->{task}, $coroutines->length]));
}
}
else {
my $is_over_deadline = 0;
my $deadline_base_timer = $coroutine->{deadline_base_timer};
my $after = $coroutine->{after};
if ($deadline_base_timer) {
$is_over_deadline = Go::Schedule->is_over_deadline($deadline_base_timer, $after);
if ($is_over_deadline) {
$coroutine->{deadline_base_timer} = undef;
}
else {
$coroutines->push($coroutines->shift);
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Rotate timer goroutine (Callback:%p, QueueNum:%d)", [(object)$coroutine->{task}, $coroutines->length]));
}
}
}
else {
$is_over_deadline = 1;
}
my $fd = $coroutine->{fd};
if ($fd >= 0) {
$coroutine->{disable} = 1;
my $coroutine_address = Fn->to_address($coroutine);
$schedule->{poll}->{coroutines_h}->set($coroutine_address, $coroutine);
$coroutines->push($coroutines->shift);
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Rotate IO goroutine first time (Callback:%p, QueueNum:%d.)", [(object)$coroutine->{task}, $coroutines->length]));
}
}
else {
if ($is_over_deadline) {
my $schedule_task_coroutine = $schedule->{schedule_task_coroutine};
$coroutines->push($coroutines->shift);
$coroutine->{return_back} = $schedule_task_coroutine;
$schedule->{current_coroutine} = $coroutine;
Go::Coroutine->transfer($schedule_task_coroutine, $coroutine);
if (Go->ENV_DEBUG) {
Fn->say_stderr(Fn->sprintf("[Go Debug]Start or resume goroutine (Callback:%p, QueueNum:%d.)", [(object)$coroutine->{task}, $coroutines->length]));
}
}
}
}
}
$loop_count++;
}
}
t/lib/SPVM/TestCase/Go/Coroutine.spvm view on Meta::CPAN
use Point;
use IntList;
use Array;
our $RESULT : IntList;
static method transfer_minimal : int () {
$RESULT = IntList->new;
my $coroutine_return_back = Go::Coroutine->new;
my $coroutine = Go::Coroutine->new(method : void () {
$RESULT->push(2);
}, $coroutine_return_back);
$RESULT->push(1);
Go::Coroutine->transfer($coroutine_return_back, $coroutine);
$RESULT->push(3);
unless (Array->equals_int($RESULT->to_array, [1, 2, 3])) {
return 0;
}
$RESULT = undef;
return 1;
}
static method transfer_create_many_objects : int () {
my $coroutine_return_back = Go::Coroutine->new;
my $coroutine = Go::Coroutine->new(method : void () {
for (my $i = 0; $i < 100; $i++) {
my $point = Point->new;
}
}, $coroutine_return_back);
Go::Coroutine->transfer($coroutine_return_back, $coroutine);
return 1;
}
static method transfer : int () {
$RESULT = IntList->new;
my $coroutines = new Go::Coroutine[2];
my $coroutine_return_back = Go::Coroutine->new;
my $coroutine0 = Go::Coroutine->new([has coroutines : Go::Coroutine[] = $coroutines] method : void () {
$RESULT->push(2);
my $coroutines = $self->{coroutines};
my $coroutine1 = Go::Coroutine->new([has coroutines : Go::Coroutine[] = $coroutines] method : void () {
$RESULT->push(4);
&foo;
$RESULT->push(6);
Go::Coroutine->transfer($self->{coroutines}[1], $self->{coroutines}[0]);
$RESULT->push(8);
}, $coroutines->[0]);
$coroutines->[1] = $coroutine1;
$RESULT->push(3);
Go::Coroutine->transfer($coroutines->[0], $coroutines->[1]);
$RESULT->push(7);
Go::Coroutine->transfer($coroutines->[0], $coroutines->[1]);
$RESULT->push(9);
}, $coroutine_return_back);
$coroutines->[0] = $coroutine0;
$RESULT->push(1);
Go::Coroutine->transfer($coroutine_return_back, $coroutines->[0]);
$RESULT->push(10);
unless (Array->equals_int($RESULT->to_array, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10])) {
return 0;
}
$RESULT = undef;
$coroutines->[0] = undef;
$coroutines->[1] = undef;
return 1;
}
static method foo : void () {
$RESULT->push(5);
}
static method die : int () {
$RESULT = IntList->new;
my $coroutine_return_back = Go::Coroutine->new;
my $coroutine = Go::Coroutine->new(method : void () {
$RESULT->push(2);
die "Coroutine Error.";
$RESULT->push(4);
}, $coroutine_return_back);
$RESULT->push(1);
Go::Coroutine->transfer($coroutine_return_back, $coroutine);
$RESULT->push(3);
unless (Array->equals_int($RESULT->to_array, [1, 2, 3])) {
return 0;
}
$RESULT = undef;
return 1;
( run in 0.595 second using v1.01-cache-2.11-cpan-3cd7ad12f66 )