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authorGravatar Craig Tiller <ctiller@google.com>2017-03-29 09:07:14 -0700
committerGravatar Craig Tiller <ctiller@google.com>2017-03-29 09:07:14 -0700
commitd9bc2bf8252c6a29fb7fcc21be22f7ccd285e619 (patch)
treee992992b0b9995ccad398f7b7db37ff511d4efe4 /src/core/lib/iomgr
parent1a7692683fc40579180dee72bb2863a9bca827b6 (diff)
parentd07275764717272c451ace7d7bd10c8d9a51ab6a (diff)
Merge github.com:grpc/grpc into atomic-timers
Diffstat (limited to 'src/core/lib/iomgr')
-rw-r--r--src/core/lib/iomgr/resource_quota.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/core/lib/iomgr/resource_quota.c b/src/core/lib/iomgr/resource_quota.c
index 511ffdcdf1..8dcd80d001 100644
--- a/src/core/lib/iomgr/resource_quota.c
+++ b/src/core/lib/iomgr/resource_quota.c
@@ -279,11 +279,17 @@ static void rq_step_sched(grpc_exec_ctx *exec_ctx,
/* update the atomically available resource estimate - use no barriers since
timeliness of delivery really doesn't matter much */
static void rq_update_estimate(grpc_resource_quota *resource_quota) {
+ gpr_atm memory_usage_estimation = MEMORY_USAGE_ESTIMATION_MAX;
+ if (resource_quota->size != 0) {
+ memory_usage_estimation =
+ GPR_CLAMP((gpr_atm)((1.0 -
+ ((double)resource_quota->free_pool) /
+ ((double)resource_quota->size)) *
+ MEMORY_USAGE_ESTIMATION_MAX),
+ 0, MEMORY_USAGE_ESTIMATION_MAX);
+ }
gpr_atm_no_barrier_store(&resource_quota->memory_usage_estimation,
- (gpr_atm)((1.0 -
- ((double)resource_quota->free_pool) /
- ((double)resource_quota->size)) *
- MEMORY_USAGE_ESTIMATION_MAX));
+ memory_usage_estimation);
}
/* returns true if all allocations are completed */