diff options
| author | Christopher Faylor <me@cgf.cx> | 2006-07-14 22:15:12 +0000 |
|---|---|---|
| committer | Christopher Faylor <me@cgf.cx> | 2006-07-14 22:15:12 +0000 |
| commit | fbadc634cb3a805c94fd71d4136291b51784cd04 (patch) | |
| tree | 84fca13db58b9dc1cbc687d06e58f4961abe75db /winsup/cygwin | |
| parent | d9ceecd2d2d8c94f21468325384975c7308ad899 (diff) | |
| download | cygnal-fbadc634cb3a805c94fd71d4136291b51784cd04.tar.gz cygnal-fbadc634cb3a805c94fd71d4136291b51784cd04.tar.bz2 cygnal-fbadc634cb3a805c94fd71d4136291b51784cd04.zip | |
* fork.cc (fork): Lock the process before forking to prevent things like new
fds from being opened, etc.
* sync.h (lock_process::dont_bother): New function.
Diffstat (limited to 'winsup/cygwin')
| -rw-r--r-- | winsup/cygwin/ChangeLog | 6 | ||||
| -rw-r--r-- | winsup/cygwin/fork.cc | 6 | ||||
| -rw-r--r-- | winsup/cygwin/sync.h | 1 |
3 files changed, 12 insertions, 1 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index a292b9537..cf8ac0a65 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,5 +1,11 @@ 2006-07-14 Christopher Faylor <cgf@timesys.com> + * fork.cc (fork): Lock the process before forking to prevent things + like new fds from being opened, etc. + * sync.h (lock_process::dont_bother): New function. + +2006-07-14 Christopher Faylor <cgf@timesys.com> + * include/cygwin/types.h: Update copyright. 2006-07-14 Christopher Faylor <cgf@timesys.com> diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc index 204362911..ed85e74cf 100644 --- a/winsup/cygwin/fork.cc +++ b/winsup/cygwin/fork.cc @@ -533,6 +533,7 @@ fork () return -1; } + lock_process now; if (sig_send (NULL, __SIGHOLD)) { if (exit_state) @@ -547,7 +548,10 @@ fork () __asm__ volatile ("movl %%esp,%0": "=r" (esp)); if (ischild) - res = grouped.child (esp); + { + res = grouped.child (esp); + now.dont_bother (); + } else { res = grouped.parent (esp); diff --git a/winsup/cygwin/sync.h b/winsup/cygwin/sync.h index 8fd01df3a..f7ce7e1b4 100644 --- a/winsup/cygwin/sync.h +++ b/winsup/cygwin/sync.h @@ -50,6 +50,7 @@ class lock_process static muto locker; public: static void init () {locker.init ("lock_process");} + void dont_bother () {skip_unlock = true;} lock_process (bool exiting = false) { locker.acquire (); |