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authorJustin M. Keyes <justinkz@gmail.com>2019-09-02 18:01:13 +0200
committerJustin M. Keyes <justinkz@gmail.com>2019-09-03 16:14:29 +0200
commit58318af71844c71db1621706d1f6a7bbed8e8621 (patch)
tree88563e2bc1953518750da91eba9ec8586704d268
parenta00eb23c27da7a0b79ea0030370074a1e383e457 (diff)
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jobwait(): fix race if job exits before waiting on it
Problem: If a job exits while waiting on another job, the on_exit handler is queued but f_jobwait() skips it. Solution: Always do process_wait(), so that handlers are run during f_jobwait(). fix #8302 Test case: $ BUSTED_ARGS="--repeat=2000 --no-keep-going" TEST_FILE=test/functional/core/job_spec.lua TEST_FILTER=waiting make functionaltest Failure example (macOS CI): FAILED test/functional/core/job_spec.lua: jobs jobwait will run callbacks while waiting test/functional/core/job_spec.lua:606: Expected objects to be the same. Passed in: (table: 0x1be77c80) { [1] = 'notification' [2] = 'wait' *[3] = { *[1] = 3 } } Expected: (table: 0x1be77d10) { [1] = 'notification' [2] = 'wait' *[3] = { *[1] = 4 } } stack traceback: test/functional/core/job_spec.lua:606: in function <test/functional/core/job_spec.lua:583
-rw-r--r--runtime/doc/eval.txt11
-rw-r--r--src/nvim/eval.c2
-rw-r--r--test/functional/core/job_spec.lua1
3 files changed, 7 insertions, 7 deletions
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index f45f99ede2..06f88955c9 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -5411,7 +5411,8 @@ jobstop({id}) *jobstop()*
See |job-control|.
jobwait({ids}[, {timeout}]) *jobwait()*
- Wait for a set of jobs to complete.
+ Wait for a set of jobs and their |on_exit| handlers to
+ complete.
{ids} is a list of |job-id|s to wait for.
{timeout} is the maximum waiting time in milliseconds, -1
@@ -5427,10 +5428,10 @@ jobwait({ids}[, {timeout}]) *jobwait()*
Returns a list of len({ids}) integers, where each integer is
the wait-result of the corresponding job. Each wait-result is
one of the following:
- * Exit-code, if the job exited
- * -1 if the timeout was exceeded
- * -2 if the job was interrupted
- * -3 if the |job-id| is invalid
+ Exit-code, if the job exited
+ -1 if the timeout was exceeded
+ -2 if the job was interrupted (by |CTRL-C|)
+ -3 if the job-id is invalid
join({list} [, {sep}]) *join()*
Join the items in {list} together into one String.
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 683d44a245..89aaab4c4e 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -12487,7 +12487,7 @@ static void f_jobwait(typval_T *argvars, typval_T *rettv, FunPtr fptr)
}
// if the job already exited, but wasn't freed yet
- if (jobs[i] == NULL || jobs[i]->stream.proc.status >= 0) {
+ if (jobs[i] == NULL) {
continue;
}
diff --git a/test/functional/core/job_spec.lua b/test/functional/core/job_spec.lua
index dec7c1422d..3a1be7bc52 100644
--- a/test/functional/core/job_spec.lua
+++ b/test/functional/core/job_spec.lua
@@ -607,7 +607,6 @@ describe('jobs', function()
\ ])
call rpcnotify(g:channel, 'wait', sort(g:jobs), sort(g:exits))
]])
- assert:set_parameter('TableFormatLevel', 1000000)
eq({'notification', 'wait',
{{3,4,5,6}, {3,4,5,6}}}, next_msg())
end)