27 lines
907 B
Diff
27 lines
907 B
Diff
diff -up ksh-20120801/src/cmd/ksh93/include/jobs.h.locking ksh-20120801/src/cmd/ksh93/include/jobs.h
|
|
--- ksh-20120801/src/cmd/ksh93/include/jobs.h.locking 2014-06-27 15:51:07.144923719 +0200
|
|
+++ ksh-20120801/src/cmd/ksh93/include/jobs.h 2014-06-27 15:52:56.463272276 +0200
|
|
@@ -149,15 +149,18 @@ extern struct jobs job;
|
|
#define vmbusy() 0
|
|
#endif
|
|
|
|
-#define job_lock() (job.in_critical++)
|
|
+#define asoincint(p) __sync_fetch_and_add(p,1)
|
|
+#define asodecint(p) __sync_fetch_and_sub(p,1)
|
|
+
|
|
+#define job_lock() asoincint(&job.in_critical)
|
|
#define job_unlock() \
|
|
do { \
|
|
int sig; \
|
|
- if (!--job.in_critical && (sig = job.savesig)) \
|
|
+ if (asodecint(&job.in_critical)==1 && (sig = job.savesig)) \
|
|
{ \
|
|
- if (!job.in_critical++ && !vmbusy()) \
|
|
+ if (!asoincint(&job.in_critical) && !vmbusy()) \
|
|
job_reap(sig); \
|
|
- job.in_critical--; \
|
|
+ asodecint(&job.in_critical); \
|
|
} \
|
|
} while(0)
|
|
|