new framework to inhibit thread cancellation when needed

[musl] / src / internal / libc.h

diff --git a/src/internal/libc.h b/src/internal/libc.h
index b80cbcc..be88dc0 100644 (file)
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -45,6 +45,8 @@ void __lockfile(FILE *);
 #define CANCELPT_BEGIN CANCELPT(1)
 #define CANCELPT_TRY CANCELPT(0)
 #define CANCELPT_END CANCELPT(-1)
+#define CANCELPT_INHIBIT CANCELPT(2)
+#define CANCELPT_RESUME CANCELPT(-2)
 
 extern char **__environ;
 #define environ __environ