From 348640078e3d991421c6535f3528f6c351ec2922 Mon Sep 17 00:00:00 2001
From: Pixel <pixel@nobis-crew.org>
Date: Thu, 1 Dec 2011 08:23:59 -0800
Subject: Adding the CORO_SJLJ_PTHREAD target, to be pthread-compliant when
 doing the SJLJ method.

---
 coro.c | 26 +++++++++++++++++++++-----
 coro.h |  4 ++--
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/coro.c b/coro.c
index 615af83..b44c8b0 100644
--- a/coro.c
+++ b/coro.c
@@ -45,7 +45,7 @@
 /*****************************************************************************/
 /* ucontext/setjmp/asm backends                                              */
 /*****************************************************************************/
-#if CORO_UCONTEXT || CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX || CORO_ASM
+#if CORO_UCONTEXT || CORO_SJLJ || CORO_SJLJ_PTHREAD || CORO_LOSER || CORO_LINUX || CORO_IRIX || CORO_ASM
 
 # if CORO_UCONTEXT
 #  include <stddef.h>
@@ -70,7 +70,7 @@
 
 # include <stdlib.h>
 
-# if CORO_SJLJ
+# if CORO_SJLJ || CORO_SJLJ_PTHREAD
 #  include <stdio.h>
 #  include <signal.h>
 #  include <unistd.h>
@@ -98,7 +98,7 @@ coro_init (void)
   abort ();
 }
 
-# if CORO_SJLJ
+# if CORO_SJLJ || CORO_SJLJ_PTHREAD
 
 static volatile int trampoline_done;
 
@@ -205,11 +205,15 @@ trampoline (int sig)
 
 # endif
 
+#if CORO_SJLJ_PTHREAD
+#include <pthread.h>
+#endif
+
 void
 coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssize)
 {
   coro_context nctx;
-# if CORO_SJLJ
+# if CORO_SJLJ || CORO_SJLJ_PTHREAD
   stack_t ostk, nstk;
   struct sigaction osa, nsa;
   sigset_t nsig, osig;
@@ -224,12 +228,16 @@ coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssiz
   new_coro    = ctx;
   create_coro = &nctx;
 
-# if CORO_SJLJ
+# if CORO_SJLJ || CORO_SJLJ_PTHREAD
   /* we use SIGUSR2. first block it, then fiddle with it. */
 
   sigemptyset (&nsig);
   sigaddset (&nsig, SIGUSR2);
+#if CORO_SJLJ
   sigprocmask (SIG_BLOCK, &nsig, &osig);
+#else
+  pthread_sigmask (SIG_BLOCK, &nsig, &osig);
+#endif
 
   nsa.sa_handler = trampoline;
   sigemptyset (&nsa.sa_mask);
@@ -253,7 +261,11 @@ coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssiz
     }
 
   trampoline_done = 0;
+#if CORO_SJLJ
   kill (getpid (), SIGUSR2);
+#else
+  pthread_kill (pthread_self(), SIGUSR2);
+#endif
   sigfillset (&nsig); sigdelset (&nsig, SIGUSR2);
 
   while (!trampoline_done)
@@ -272,7 +284,11 @@ coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssiz
     sigaltstack (&ostk, 0);
 
   sigaction (SIGUSR2, &osa, 0);
+#if CORO_SJLJ
   sigprocmask (SIG_SETMASK, &osig, 0);
+#else
+  pthread_sigmask (SIG_SETMASK, &osig, 0);
+#endif
 
 # elif CORO_LOSER
 
diff --git a/coro.h b/coro.h
index 52bb428..c5cf2a4 100644
--- a/coro.h
+++ b/coro.h
@@ -208,7 +208,7 @@ void coro_destroy (coro_context *ctx);
 #if !defined(CORO_LOSER) && !defined(CORO_UCONTEXT) \
     && !defined(CORO_SJLJ) && !defined(CORO_LINUX) \
     && !defined(CORO_IRIX) && !defined(CORO_ASM) \
-    && !defined(CORO_PTHREAD)
+    && !defined(CORO_PTHREAD) && !defined(CORO_SJLJ_PTHREAD)
 # if defined(WINDOWS) || defined(_WIN32)
 #  define CORO_LOSER 1 /* you don't win with windoze */
 # elif defined(__linux) && (defined(__x86) || defined (__amd64))
@@ -235,7 +235,7 @@ struct coro_context {
 # 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
+#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX || CORO_SJLJ_PTHREAD
 
 # if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
 #  define _GNU_SOURCE /* for linux libc */
-- 
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