diff options
Diffstat (limited to 'ext/-test-/popen_deadlock/infinite_loop_dlsym.c')
-rw-r--r-- | ext/-test-/popen_deadlock/infinite_loop_dlsym.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/ext/-test-/popen_deadlock/infinite_loop_dlsym.c b/ext/-test-/popen_deadlock/infinite_loop_dlsym.c new file mode 100644 index 0000000000..1d95a7cc9a --- /dev/null +++ b/ext/-test-/popen_deadlock/infinite_loop_dlsym.c @@ -0,0 +1,50 @@ +#include "ruby/ruby.h" +#include "ruby/thread.h" +#include <dlfcn.h> + +struct data_for_loop_dlsym { + const char *name; + volatile int stop; +}; + +static void* +native_loop_dlsym(void *data) +{ + struct data_for_loop_dlsym *s = data; + + while (!(s->stop)) { + dlsym(RTLD_DEFAULT, s->name); + } + + return NULL; +} + +static void +ubf_for_loop_dlsym(void *data) +{ + struct data_for_loop_dlsym *s = data; + + s->stop = 1; + + return; +} + +static VALUE +loop_dlsym(VALUE self, VALUE name) +{ + struct data_for_loop_dlsym d; + + d.stop = 0; + d.name = StringValuePtr(name); + + rb_thread_call_without_gvl(native_loop_dlsym, &d, + ubf_for_loop_dlsym, &d); + + return self; +} + +void +Init_infinite_loop_dlsym(void) +{ + rb_define_method(rb_cThread, "__infinite_loop_dlsym__", loop_dlsym, 1); +} |