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Adopt owning_lock for job_ids

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ridiculousfish 2017-01-29 13:03:54 -08:00
parent eaf143dd8a
commit 017836cffa
1 changed files with 5 additions and 4 deletions
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9
src/proc.cpp
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@ -156,11 +156,11 @@ int proc_get_last_status() { return last_status; }
// Basic thread safe job IDs. The vector consumed_job_ids has a true value wherever the job ID
// corresponding to that slot is in use. The job ID corresponding to slot 0 is 1.
static pthread_mutex_t job_id_lock = PTHREAD_MUTEX_INITIALIZER;
static std::vector<bool> consumed_job_ids;
static owning_lock<std::vector<bool>> locked_consumed_job_ids;
job_id_t acquire_job_id(void) {
scoped_lock locker(job_id_lock);
auto locker = locked_consumed_job_ids.acquire();
std::vector<bool> &consumed_job_ids = locker.value;
// Find the index of the first 0 slot.
std::vector<bool>::iterator slot =
@ -179,7 +179,8 @@ job_id_t acquire_job_id(void) {
void release_job_id(job_id_t jid) {
assert(jid > 0);
scoped_lock locker(job_id_lock);
auto locker = locked_consumed_job_ids.acquire();
std::vector<bool> &consumed_job_ids = locker.value;
size_t slot = (size_t)(jid - 1), count = consumed_job_ids.size();
// Make sure this slot is within our vector and is currently set to consumed.