X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fstdio%2Fftrylockfile.c;h=eef4e2502e56af1a6ed1f8d9a08f898bab5ce856;hp=67f4b6a070ca2c1c833c8d92401e6f8ac75c251f;hb=HEAD;hpb=a37452430f93700aeb122d693959ad79d8e43ada diff --git a/src/stdio/ftrylockfile.c b/src/stdio/ftrylockfile.c index 67f4b6a0..eef4e250 100644 --- a/src/stdio/ftrylockfile.c +++ b/src/stdio/ftrylockfile.c @@ -1,16 +1,17 @@ #include "stdio_impl.h" #include "pthread_impl.h" +#include int ftrylockfile(FILE *f) { int tid = pthread_self()->tid; - if (!libc.lockfile) libc.lockfile = __lockfile; if (f->lock == tid) { - if (f->lockcount == INT_MAX) + if (f->lockcount == LONG_MAX) return -1; f->lockcount++; return 0; } + if (f->lock < 0) f->lock = 0; if (f->lock || a_cas(&f->lock, 0, tid)) return -1; f->lockcount = 1;