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authorRich Felker <dalias@aerifal.cx>2011-03-29 12:58:22 -0400
committerRich Felker <dalias@aerifal.cx>2011-03-29 12:58:22 -0400
commitbf619d82c82052741323aa63c107fbd346c8aaba (patch)
tree11f97d73195bb633df6c6e679ab65a7f8f0fd477 /src/internal/pthread_impl.h
parent70c31c7bd779400d2eb56dcb4075bb37227081db (diff)
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major improvements to cancellation handling
- there is no longer any risk of spoofing cancellation requests, since
  the cancel flag is set in pthread_cancel rather than in the signal
  handler.

- cancellation signal is no longer unblocked when running the
  cancellation handlers. instead, pthread_create will cause any new
  threads created from a cancellation handler to unblock their own
  cancellation signal.

- various tweaks in preparation for POSIX timer support.
Diffstat (limited to 'src/internal/pthread_impl.h')
-rw-r--r--src/internal/pthread_impl.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 615b963a..f2d0ae8c 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -41,10 +41,14 @@ struct pthread {
 		long off;
 		void *pending;
 	} robust_list;
+	int unblock_cancel;
 };
 
 struct __timer {
-	struct sigevent sev;
+	int timerid;
+	union sigval val;
+	void (*notify)(union sigval);
+	pthread_t thread;
 };
 
 #define __SU (sizeof(size_t)/sizeof(int))
@@ -73,7 +77,6 @@ struct __timer {
 
 #define SIGCANCEL 32
 #define SIGSYSCALL 33
-#define SIGTIMER  32 /* ?? */
 
 int __set_thread_area(void *);
 int __libc_sigaction(int, const struct sigaction *, struct sigaction *);