diff options
Diffstat (limited to 'boehm-gc/quick_threads.c')
| -rw-r--r-- | boehm-gc/quick_threads.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/boehm-gc/quick_threads.c b/boehm-gc/quick_threads.c new file mode 100644 index 00000000000..adc26da6d59 --- /dev/null +++ b/boehm-gc/quick_threads.c @@ -0,0 +1,55 @@ +/* + * Support code for cooperative coop/quick threads. + * Copyright (c) 1998, 1999 Cygnus Solutions. + */ + +#include "boehm-config.h" + +#ifdef QUICK_THREADS + +#include "gc_priv.h" + +#include "coop.h" + +void GC_push_all_stacks (void) +{ + coop_t *t; + ptr_t lo, hi; + + t = coop_first_thread (); + + if (t == NULL) + { + /* Threads haven't started, so mark the real stack. */ +#ifdef STACK_GROWS_DOWN + GC_push_all_stack( GC_approx_sp(), GC_stackbottom ); +#else + GC_push_all_stack( GC_stackbottom, GC_approx_sp() ); +#endif + } + else + { + for ( ; t != NULL; t = coop_next_thread (t)) + { + if (t == coop_global_curr) + lo = GC_approx_sp (); + else + { + lo = t->top; + /* LO can be NULL when the new thread has not yet been + used. */ + if (! lo) + continue; + } + hi = t->base; + +#ifdef STACK_GROWS_DOWN + GC_push_all_stack (lo, hi); +#else + GC_push_all_stack (hi, lo); +#endif + } + } +} + +#endif /* QUICK_THREADS */ |