rc/wait.c, branch master

Report children as soon as possible when waiting for all

2019-12-06T16:57:34+00:00

The following example demonstrates the problem:

    ; false & sleep 300 & wait
    2317 # pid of false
    2318 # pid of sleep
    # blocking for 300s
    2318: done (0)
    2817: done (1)

With this commit the status for false is reported instantly:

    ; false & sleep 300 & wait
    4205 # pid of false
    4206 # pid of sleep
    4205: done (1)
    # blocking for 300s
    4206: done (0)

Bug: yet more wrongly ordered header file includes.

2015-05-16T20:23:21+00:00

add "wait.h"

2015-05-16T20:23:11+00:00

get the stuff right this time

2015-05-16T20:23:10+00:00

sort out includes of

2015-05-16T20:23:10+00:00

abandon waitforall() if rc_wait4() returns with errno == EINTR

2015-05-16T20:23:04+00:00

reinstate rc_wait (but right this time)

2015-05-16T20:23:04+00:00

fix memory leak after fork()

2015-05-16T20:23:03+00:00

remove rc_wait()

reset list of child processes after fork; fixes `{ls & wait} |cat' bug

2015-05-16T20:23:02+00:00

use sigsetjmp, etc.

2015-05-16T20:23:02+00:00