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uloop: make SIGCHLD signal handling optional

Some programs want to manage their own child life cycle without using
SIGCHLD signal handler. In these cases, uloop is reaping children for
them because they don't have SIGCHLD handler set. This patch makes it
possible to disable reaping children through 'uloop_handle_sigchld'
variable.

Signed-off-by: Petar Paradzik <petar.paradzik@sartura.hr>
master
Petar Paradzik 4 years ago
committed by Felix Fietkau
parent
commit
f714be125c
1 changed files with 4 additions and 1 deletions
  1. +4
    -1
      uloop.c

+ 4
- 1
uloop.c View File

@ -58,6 +58,7 @@ static struct list_head processes = LIST_HEAD_INIT(processes);
static int poll_fd = -1;
bool uloop_cancelled = false;
bool uloop_handle_sigchld = true;
static int uloop_status = 0;
static bool do_sigchld = false;
@ -466,7 +467,9 @@ static void uloop_setup_signals(bool add)
uloop_install_handler(SIGINT, uloop_handle_sigint, &old_sigint, add);
uloop_install_handler(SIGTERM, uloop_handle_sigint, &old_sigterm, add);
uloop_install_handler(SIGCHLD, uloop_sigchld, &old_sigchld, add);
if (uloop_handle_sigchld)
uloop_install_handler(SIGCHLD, uloop_sigchld, &old_sigchld, add);
uloop_ignore_signal(SIGPIPE, add);
}


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