diff options
Diffstat (limited to 'makewrappers')
| -rwxr-xr-x | makewrappers | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/makewrappers b/makewrappers index d269aa3..b0462fe 100755 --- a/makewrappers +++ b/makewrappers @@ -270,7 +270,19 @@ EOF fi # and now the body of the wrapper: cat >&5 <<EOF + sigset_t blocked, saved; + pseudo_debug(4, "called: $name\n"); + /* these are signals for which the handlers often + * invoke operations, such as close(), which are handled + * by pseudo and could result in a deadlock. + */ + sigemptyset(&blocked); + sigaddset(&blocked, SIGCHLD); + sigaddset(&blocked, SIGALRM); + sigaddset(&blocked, SIGUSR1); + sigaddset(&blocked, SIGUSR2); + sigprocmask(SIG_BLOCK, &blocked, &saved); if (pseudo_getlock()) { errno = EBUSY; sigprocmask(SIG_SETMASK, &saved, NULL); @@ -293,11 +305,13 @@ $free_paths } save_errno = errno; pseudo_droplock(); + sigprocmask(SIG_SETMASK, &saved, NULL); errno = save_errno; pseudo_debug(4, "completed: $name\n"); $(write_return rc); } else { pseudo_droplock(); + sigprocmask(SIG_SETMASK, &saved, NULL); pseudo_debug(4, "completed: $name\n"); $(write_return "dummy_$name($argnames)"); } |