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use enum class

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This commit is contained in:
Alex Cope 2023-07-07 11:07:33 -07:00 committed by Malavan Sotheeswaran
parent b5a20a4f91
commit 872c60566f
2 changed files with 10 additions and 8 deletions
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15
src/evict.cpp
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@ -66,6 +66,11 @@ struct evictionPoolEntry {
static struct evictionPoolEntry *EvictionPoolLRU;
enum class EvictReason {
User, /* User memory exceeded limit */
System /* System memory exceeded limit */
};
/* ----------------------------------------------------------------------------
* Implementation of eviction, aging and LRU
* --------------------------------------------------------------------------*/
@ -420,7 +425,7 @@ size_t freeMemoryGetNotCountedMemory(void) {
* EVICT_REASON_SYS: available system memory under configurable threshold
* (Populated when C_ERR is returned)
*/
int getMaxmemoryState(size_t *total, size_t *logical, size_t *tofree, float *level, int *reason, bool fQuickCycle, bool fPreSnapshot) {
int getMaxmemoryState(size_t *total, size_t *logical, size_t *tofree, float *level, EvictReason *reason, bool fQuickCycle, bool fPreSnapshot) {
size_t mem_reported, mem_used, mem_tofree;
/* Check if we are over the memory usage limit. If we are not, no need
@ -485,7 +490,7 @@ int getMaxmemoryState(size_t *total, size_t *logical, size_t *tofree, float *lev
if (logical) *logical = mem_used;
if (tofree) *tofree = mem_tofree;
if (reason) *reason = sys_available_mem_buffer < 0 ? EVICT_REASON_SYS : EVICT_REASON_USER;
if (reason) *reason = sys_available_mem_buffer < 0 ? EvictReason::System : EvictReason::User;
return C_ERR;
}
@ -675,7 +680,7 @@ int performEvictions(bool fPreSnapshot) {
const bool fEvictToStorage = !cserver.delete_on_evict && g_pserver->db[0]->FStorageProvider();
int result = EVICT_FAIL;
int ckeysFailed = 0;
int evictReason;
EvictReason evictReason;
std::unique_ptr<FreeMemoryLazyFree> splazy = std::make_unique<FreeMemoryLazyFree>();
@ -862,7 +867,7 @@ int performEvictions(bool fPreSnapshot) {
* across the dbAsyncDelete() call, while the thread can
* release the memory all the time. */
if (g_pserver->lazyfree_lazy_eviction) {
if (evictReason == EVICT_REASON_SYS) {
if (evictReason == EvictReason::System) {
updateSysAvailableMemory();
}
if (getMaxmemoryState(NULL,NULL,NULL,NULL) == C_OK) {
@ -895,7 +900,7 @@ int performEvictions(bool fPreSnapshot) {
}
cant_free:
if (mem_freed > 0 && evictReason == EVICT_REASON_SYS) {
if (mem_freed > 0 && evictReason == EvictReason::System) {
updateSysAvailableMemory();
}

3
src/server.h
View File

@ -3662,9 +3662,6 @@ unsigned long LFUDecrAndReturn(robj_roptr o);
#define EVICT_RUNNING 1
#define EVICT_FAIL 2
int performEvictions(bool fPreSnapshot);
#define EVICT_REASON_NONE 0
#define EVICT_REASON_USER 1
#define EVICT_REASON_SYS 2
/* meminfo.cpp -- get memory info from /proc/memoryinfo for linux distros */
size_t getMemAvailable();