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Revert "Explicitly nulling chained_wait_prev after munmap()"

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This reverts commit 47d8a7e882.
It was meant for the major branch.
This commit is contained in:
Kurtis Rader
2017-08-13 15:30:09 -07:00
parent 4429518667
commit c304ca1a1c
1 changed files with 1 additions and 3 deletions
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4
src/exec.cpp
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@@ -1071,9 +1071,8 @@ void exec_job(parser_t &parser, job_t *j) {
{
pid = execute_fork(false);
if (pid == 0) {
// usleep is a hack that fixes any tcsetpgrp errors caused by race conditions
// a hack that fixes any tcsetpgrp errors caused by race conditions
// usleep(20 * 1000);
// it should no longer be needed with the chained_wait_next code below.
if (chained_wait_next != nullptr) {
debug(3, L"Waiting for next command in chain to start.\n");
sem_wait(chained_wait_next);
@@ -1127,7 +1126,6 @@ void exec_job(parser_t &parser, job_t *j) {
debug(3, L"Unblocking previous command in chain.\n");
sem_post(chained_wait_prev);
munmap(chained_wait_prev, sizeof(sem_t));
chained_wait_prev = nullptr;
}
if (chained_wait_next != nullptr) {
chained_wait_prev = chained_wait_next;