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| author | Peter Stephenson <pws@users.sourceforge.net> | 2007-05-23 11:44:47 +0000 |
|---|---|---|
| committer | Peter Stephenson <pws@users.sourceforge.net> | 2007-05-23 11:44:47 +0000 |
| commit | 6503964dad4555a9999c449dde6d499fa97a2f2e (patch) | |
| tree | ce4990df663f9b1f2a26f23dbfb3177e98b97636 /Src | |
| parent | fcd2c9243fcb0e29098da9d9f815373d73d6b192 (diff) | |
| download | zsh-6503964dad4555a9999c449dde6d499fa97a2f2e.tar.gz zsh-6503964dad4555a9999c449dde6d499fa97a2f2e.tar.xz zsh-6503964dad4555a9999c449dde6d499fa97a2f2e.zip | |
John Buddery: 23461: fix race setting up input multios
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/exec.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Src/exec.c b/Src/exec.c index 5aa3dba12..f711f3d30 100644 --- a/Src/exec.c +++ b/Src/exec.c @@ -1549,20 +1549,29 @@ closemn(struct multio **mfds, int fd) pid_t pid; struct timeval bgtime; + /* + * We need to block SIGCHLD in case the process + * we are spawning terminates before the job table + * is set up to handle it. + */ + child_block(); if ((pid = zfork(&bgtime))) { for (i = 0; i < mn->ct; i++) zclose(mn->fds[i]); zclose(mn->pipe); - if (pid == -1) { + if (pid == -1) { mfds[fd] = NULL; + child_unblock(); return; } mn->ct = 1; mn->fds[0] = fd; addproc(pid, NULL, 1, &bgtime); + child_unblock(); return; } /* pid == 0 */ + child_unblock(); closeallelse(mn); if (mn->rflag) { /* tee process */ |