Change 13910 by jhi@alpha on 2001/12/27 14:32:23
More wait status trickery for BeOS.
Affected files ...
.... //depot/perl/ext/POSIX/POSIX.xs#99 edit
Differences ...
==== //depot/perl/ext/POSIX/POSIX.xs#99 (text) ====
Index: perl/ext/POSIX/POSIX.xs
--- perl/ext/POSIX/POSIX.xs.~1~ Thu Dec 27 07:45:08 2001
+++ perl/ext/POSIX/POSIX.xs Thu Dec 27 07:45:08 2001
@@ -351,6 +351,20 @@
#endif
#endif
+/* Background: in most systems the low byte of the wait status
+ * is the signal (the lowest 7 bits) and the coredump flag is
+ * the eight bit, and the second lowest byte is the exit status.
+ * BeOS bucks the trend and has the bytes in different order.
+ * See beos/beos.c for how the reality is bent even in BeOS
+ * to follow the traditional. However, to make the POSIX
+ * wait W*() macros to work in BeOS, we need to unbend the
+ * reality back in place. --jhi */
+#ifdef __BEOS__
+# define WMUNGE(x) (((x) & 0xFF00) >> 8 | ((x) & 0x00FF) << 8)
+#else
+# define WMUNGE(x) (x)
+#endif
+
static int
not_here(char *s)
{
@@ -443,7 +457,7 @@
if (memEQ(name, "WSTOPSIG", 8)) {
/* ^ */
#ifdef WSTOPSIG
- *arg_result = WSTOPSIG(*arg_result);
+ *arg_result = WSTOPSIG(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
@@ -454,7 +468,7 @@
if (memEQ(name, "WTERMSIG", 8)) {
/* ^ */
#ifdef WTERMSIG
- *arg_result = WTERMSIG(*arg_result);
+ *arg_result = WTERMSIG(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
@@ -477,7 +491,7 @@
case 9:
if (memEQ(name, "WIFEXITED", 9)) {
#ifdef WIFEXITED
- *arg_result = WIFEXITED(*arg_result);
+ *arg_result = WIFEXITED(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
@@ -487,7 +501,7 @@
case 10:
if (memEQ(name, "WIFSTOPPED", 10)) {
#ifdef WIFSTOPPED
- *arg_result = WIFSTOPPED(*arg_result);
+ *arg_result = WIFSTOPPED(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
@@ -503,7 +517,7 @@
if (memEQ(name, "WEXITSTATUS", 11)) {
/* ^ */
#ifdef WEXITSTATUS
- *arg_result = WEXITSTATUS(*arg_result);
+ *arg_result = WEXITSTATUS(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
@@ -514,7 +528,7 @@
if (memEQ(name, "WIFSIGNALED", 11)) {
/* ^ */
#ifdef WIFSIGNALED
- *arg_result = WIFSIGNALED(*arg_result);
+ *arg_result = WIFSIGNALED(WMUNGE(*arg_result));
return PERL_constant_ISIV;
#else
return PERL_constant_NOTDEF;
End of Patch.
