SPVM-Resource-Coro
view release on metacpan or search on metacpan
.gitattributes
.github/workflows/linux-ubuntu-latest-asan.yml
.github/workflows/linux-ubuntu-latest-perls.yml
.github/workflows/linux-ubuntu-latest.yml
.github/workflows/macos-latest.yml
.github/workflows/windows-latest-msvc-debug.yml
.github/workflows/windows-latest-msvc.yml
.github/workflows/windows-latest.yml
.gitignore
Changes
coro_fix.patch
lib/SPVM/Resource/Coro.config
lib/SPVM/Resource/Coro.native/include/.gitkeep
lib/SPVM/Resource/Coro.native/include/coro.h
lib/SPVM/Resource/Coro.native/src/.gitkeep
lib/SPVM/Resource/Coro.native/src/coro.c
lib/SPVM/Resource/Coro.pm
lib/SPVM/Resource/Coro.spvm
LICENSE
Makefile.PL
MANIFEST This list of files
MANIFEST.SKIP
README.md
t/basic.t
t/lib/SPVM/TestCase/Resource/Coro.c
t/lib/SPVM/TestCase/Resource/Coro.config
{
"abstract" : "libcoro Resources",
"author" : [
"Yuki Kimoto<kimoto.yuki@gmail.com>"
],
"dynamic_config" : 1,
"generated_by" : "ExtUtils::MakeMaker version 7.76, CPAN::Meta::Converter version 2.150010",
"license" : [
"mit"
],
"meta-spec" : {
"url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec",
---
abstract: 'libcoro Resources'
author:
- 'Yuki Kimoto<kimoto.yuki@gmail.com>'
build_requires:
ExtUtils::MakeMaker: '0'
configure_requires:
SPVM: '0.990191'
dynamic_config: 1
generated_by: 'ExtUtils::MakeMaker version 7.76, CPAN::Meta::Converter version 2.150010'
license: mit
meta-spec:
coro_fix.patch view on Meta::CPAN
diff --git b/lib/SPVM/Resource/Coro.native/include/coro.h a/lib/SPVM/Resource/Coro.native/include/coro.h
index a90e366..ca39f2c 100644
--- b/lib/SPVM/Resource/Coro.native/include/coro.h
+++ a/lib/SPVM/Resource/Coro.native/include/coro.h
@@ -312,11 +312,11 @@ void coro_stack_free (struct coro_stack *stack);
&& !defined CORO_SJLJ && !defined CORO_LINUX \
&& !defined CORO_IRIX && !defined CORO_ASM \
&& !defined CORO_PTHREAD && !defined CORO_FIBER
-# if defined WINDOWS && (defined __i386__ || (__x86_64__ || defined _M_IX86 || defined _M_AMD64)
+# if defined WINDOWS && (defined __i386__ || (__x86_64__ || defined _M_IX86 || defined _M_AMD64))
# define CORO_ASM 1
# elif defined WINDOWS || defined _WIN32
# define CORO_LOSER 1 /* you don't win with windoze */
-# elif __linux && (__i386__ || (__x86_64__ && !__ILP32__) /*|| (__arm__ && __ARM_ARCH == 7)), not working */
+# elif __linux && (__i386__ || (__x86_64__ && !__ILP32__)) /*|| (__arm__ && __ARM_ARCH == 7)), not working */
# define CORO_ASM 1
# elif defined HAVE_UCONTEXT_H
# define CORO_UCONTEXT 1
@@ -384,7 +384,7 @@ struct coro_context
coro_jmp_buf env;
};
-# define coro_transfer(p,n) do { if (!coro_setjmp ((p)->env)) coro_longjmp ((n)->env); } while (0)
+# 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 CORO_ASM
@@ -438,4 +438,3 @@ void coro_destroy (coro_context *ctx);
#endif
#endif
-
diff --git b/lib/SPVM/Resource/Coro.native/src/coro.c a/lib/SPVM/Resource/Coro.native/src/coro.c
index a4de4c3..cd3a978 100644
--- b/lib/SPVM/Resource/Coro.native/src/coro.c
+++ a/lib/SPVM/Resource/Coro.native/src/coro.c
@@ -90,14 +90,14 @@ coro_init (void)
coro_transfer (new_coro, create_coro);
#if __GCC_HAVE_DWARF2_CFI_ASM && __amd64
- /*asm (".cfi_startproc");*/
- /*asm (".cfi_undefined rip");*/
+ /*__asm__ (".cfi_startproc");*/
+ /*__asm__ (".cfi_undefined rip");*/
#endif
func ((void *)arg);
#if __GCC_HAVE_DWARF2_CFI_ASM && __amd64
- /*asm (".cfi_endproc");*/
+ /*__asm__ (".cfi_endproc");*/
#endif
/* the new coro returned. bad. just abort() for now */
@@ -133,7 +133,7 @@ trampoline (int sig)
#define CORO_WIN_TIB 1
#endif
- asm (
+ __asm__ (
"\t.text\n"
#if _WIN32 || __CYGWIN__
"\t.globl _coro_transfer\n"
@@ -797,4 +797,3 @@ coro_stack_free (struct coro_stack *stack)
}
#endif
-
lib/SPVM/Resource/Coro.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_defines_string {
# 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/Resource/Coro.config view on Meta::CPAN
$DEFINE .= " -DCORO_STACKSIZE=$stacksize";
return $DEFINE;
}
my $config = SPVM::Builder::Config->new_c99;
$config->is_resource(1);
my $coro_defines_string = &get_coro_defines_string();
my @coro_defines = grep { length } map { s/^-D//r } split(/\s+/, $coro_defines_string);
$config->add_define(@coro_defines);
my @source_files = qw(
coro.c
);
$config->add_source_file(@source_files);
$config;
lib/SPVM/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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 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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.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/Resource/Coro.pm view on Meta::CPAN
package SPVM::Resource::Coro;
our $VERSION = "0.001";
1;
=encoding utf8
=head1 Name
SPVM::Resource::Coro - libcoro Resources
=head1 Description
Resource::Coro class in L<SPVM> is a L<resource|SPVM::Document::Resource> class for libcoro.
=head1 Usage
MyClass.config:
my $config = SPVM::Builder::Config->new_c99;
$config->use_resource('Resource::Coro');
$config->add_define(@{$config->get_resource('Resource::Coro')->config->defines});
$config;
MyClass.c:
#include "spvm_native.h"
#include "coro.h"
int32_t SPVM__MyClass__test(SPVM_ENV* env, SPVM_VALUE* stack) {
coro_context ctx;
return 0;
}
=head1 Original Product
L<libcoro|http://software.schmorp.de/pkg/libcoro.html>
=head1 Original Product Version
Use the code bundled in L<Coro 6.57|https://metacpan.org/release/MLEHMANN/Coro-6.57> on CPAN.
=head1 Language
C language
=head1 Language Standard
C99
=head1 Header Files
=over 2
=item * C<coro.h>
=back
=head1 Source Files
=over 2
=item * C<coro.c>
=back
=head1 Compiler Flags
The compiler flags are automatically configured based on the OS and its environment to ensure the correct context switching mechanism (e.g., C, C<setjmp/longjmp>, or C).
Typical flags include:
=over 2
lib/SPVM/Resource/Coro.pm view on Meta::CPAN
=head1 How to Create Resource
=head2 Donwload
mkdir -p .tmp
curl -L https://cpan.metacpan.org/authors/id/M/ML/MLEHMANN/Coro-6.57.tar.gz | tar -xz -C .tmp
=head2 Extracting Source Files
cp .tmp/Coro-6.57/Coro/libcoro/coro.h lib/SPVM/Resource/Coro.native/include/
=head2 Extracting Header Files
cp .tmp/Coro-6.57/Coro/libcoro/coro.c lib/SPVM/Resource/Coro.native/src/
=head2 Apply Patch
patch -p1 < coro_fix.patch
=head1 Repository
L<SPVM::Resource::Coro - Github|https://github.com/yuki-kimoto/SPVM-Resource-Coro>
=head1 Author
Yuki Kimoto C<kimoto.yuki@gmail.com>
=head1 Copyright & License
t/lib/SPVM/TestCase/Resource/Coro.c view on Meta::CPAN
#include "spvm_native.h"
#include "spvm_native.h"
#include "coro.h"
int32_t SPVM__TestCase__Resource__Coro__test(SPVM_ENV* env, SPVM_VALUE* stack) {
coro_context ctx;
stack[0].ival = 1;
return 0;
}
( run in 0.939 second using v1.01-cache-2.11-cpan-600a1bdf6e4 )