From 5989869a493d6bb1fc49ec0f85e45e20922ae241 Mon Sep 17 00:00:00 2001
From: root <root>
Date: Thu, 30 Nov 2006 18:21:14 +0000
Subject: *** empty log message ***

---
 coro.c | 16 +++++++++++-----
 coro.h | 18 ++++++++++--------
 2 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/coro.c b/coro.c
index d431054..196a4d3 100644
--- a/coro.c
+++ b/coro.c
@@ -100,9 +100,9 @@ trampoline (int sig)
 #endif
 
 /* initialize a machine state */
-void coro_create(coro_context *ctx,
-                 coro_func coro, void *arg,
-                 void *sptr, long ssize)
+void coro_create (coro_context *ctx,
+                  coro_func coro, void *arg,
+                  void *sptr, long ssize)
 {
 #if CORO_UCONTEXT
 
@@ -142,7 +142,10 @@ void coro_create(coro_context *ctx,
   nsa.sa_flags = SA_ONSTACK;
 
   if (sigaction (SIGUSR2, &nsa, &osa))
-    perror ("sigaction");
+    {
+      perror ("sigaction");
+      abort ();
+    }
 
   /* set the new stack */
   nstk.ss_sp    = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */
@@ -150,7 +153,10 @@ void coro_create(coro_context *ctx,
   nstk.ss_flags = 0;
 
   if (sigaltstack (&nstk, &ostk) < 0)
-    perror ("sigaltstack");
+    {
+      perror ("sigaltstack");
+      abort ();
+    }
 
   trampoline_count = 0;
   kill (getpid (), SIGUSR2);
diff --git a/coro.h b/coro.h
index b74ee22..788810f 100644
--- a/coro.h
+++ b/coro.h
@@ -101,9 +101,9 @@
 typedef void (*coro_func)(void *);
 
 /*
- * A coroutine state is saved in the following structure. Treat it as a
+ * 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 it.
+ * implement your own switching primitive if you need that.
  */
 typedef struct coro_context coro_context;
 
@@ -115,9 +115,11 @@ typedef struct coro_context coro_context;
  * Allocating/deallocating the stack is your own responsibility, so there is
  * no coro_destroy function.
  */
-void coro_create (coro_context *ctx,
-                  coro_func coro, void *arg,
-                  void *sptr, long ssize);
+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 */
+                  long ssize);       /* size of stack area */
 
 /*
  * The following prototype defines the coroutine switching function. It is
@@ -162,7 +164,7 @@ struct coro_context {
 #elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
 
 #if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
-# define _GNU_SOURCE // for linux libc
+# define _GNU_SOURCE /* for linux libc */
 #endif
 
 #include <setjmp.h>
@@ -172,9 +174,9 @@ struct coro_context {
 };
 
 #if CORO_LINUX
-# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while(0)
+# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while (0)
 #else
-# define coro_transfer(p,n) do { if (!setjmp  ((p)->env)) longjmp  ((n)->env, 1); } while(0)
+# define coro_transfer(p,n) do { if (!setjmp  ((p)->env)) longjmp  ((n)->env, 1); } while (0)
 #endif
 
 #endif
-- 
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