diff options
Diffstat (limited to 'private.c')
| -rw-r--r-- | private.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -17,7 +17,8 @@ _pthread_getthreadindex(pthread_t thread) /* The hash table works as follows: hash into the table, if the thread in this slot doesn't match then start single - stepping from there until we find it. + stepping from there until we find it, or we hit an empty slot, or + we end up where we started from. The scheme should have these characteristics: - if the thread handle is a sequence number then the hash will @@ -25,14 +26,16 @@ _pthread_getthreadindex(pthread_t thread) - if the thread handle is a pseudo randomish value (eg. a pointer) then the hash should succeed first time most times. */ - int t = _PTHREAD_HASH_INDEX(*thread); - int it = t; /* The initial thread index */ + int t = _PTHREAD_HASH_INDEX(thread); + int it = t; /* Remember where we started from. */ while ((_pthread_threads_table[t])->thread != thread) { t++; + if (t == PTHREAD_THREADS_MAX) t = 0; /* Wrap around to the first slot */ - if (t == it) + + if ((_pthread_threads_table[t])->thread == NULL || t == it) return -1; /* Failed to find the thread */ } return t; |