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authorPatrick Hogg <phogg@novamoon.net>2019-01-25 03:22:05 +0300
committerJunio C Hamano <gitster@pobox.com>2019-01-28 22:22:12 +0300
commitedb673cf1001eeff140370c41139aaa06e67cea0 (patch)
tree0b21611c4c5edcb3f27f5622b64b4459f68d8699 /pack-objects.h
parent459307b139c9a859ca0b6ca5276cf9be3d2b8e3e (diff)
pack-objects: merge read_lock and lock in packing_data struct
Rename the packing_data lock to obd_lock and upgrade it to a recursive mutex to make it suitable for current read_lock usages. Additionally remove the superfluous #ifndef NO_PTHREADS guard around mutex initialization in prepare_packing_data as the mutex functions themselves are already protected. Signed-off-by: Patrick Hogg <phogg@novamoon.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'pack-objects.h')
-rw-r--r--pack-objects.h21
1 files changed, 8 insertions, 13 deletions
diff --git a/pack-objects.h b/pack-objects.h
index 0a038e3bc6..1667cbad8f 100644
--- a/pack-objects.h
+++ b/pack-objects.h
@@ -145,8 +145,11 @@ struct packing_data {
struct packed_git **in_pack_by_idx;
struct packed_git **in_pack;
- pthread_mutex_t lock;
- pthread_mutex_t read_lock;
+ /*
+ * During packing with multiple threads, protect the in-core
+ * object database from concurrent accesses.
+ */
+ pthread_mutex_t odb_lock;
/*
* This list contains entries for bases which we know the other side
@@ -166,22 +169,14 @@ struct packing_data {
void prepare_packing_data(struct packing_data *pdata);
+/* Protect access to object database */
static inline void packing_data_lock(struct packing_data *pdata)
{
- pthread_mutex_lock(&pdata->lock);
+ pthread_mutex_lock(&pdata->odb_lock);
}
static inline void packing_data_unlock(struct packing_data *pdata)
{
- pthread_mutex_unlock(&pdata->lock);
-}
-
-static inline void packing_data_read_lock(struct packing_data *pdata)
-{
- pthread_mutex_lock(&pdata->read_lock);
-}
-static inline void packing_data_read_unlock(struct packing_data *pdata)
-{
- pthread_mutex_unlock(&pdata->read_lock);
+ pthread_mutex_unlock(&pdata->odb_lock);
}
struct object_entry *packlist_alloc(struct packing_data *pdata,