diff options
Diffstat (limited to 'src/core/lib/transport/metadata.c')
| -rw-r--r-- | src/core/lib/transport/metadata.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/src/core/lib/transport/metadata.c b/src/core/lib/transport/metadata.c index 0677f29766..4b40c275ad 100644 --- a/src/core/lib/transport/metadata.c +++ b/src/core/lib/transport/metadata.c @@ -278,7 +278,7 @@ static void ref_md_locked(mdtab_shard *shard, internal_metadata *md DEBUG_ARGS) { #ifdef GRPC_METADATA_REFCOUNT_DEBUG gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "ELM REF:%p:%d->%d: '%s' = '%s'", md, + "ELM REF:%p:%zu->%zu: '%s' = '%s'", (void *)md, gpr_atm_no_barrier_load(&md->refcnt), gpr_atm_no_barrier_load(&md->refcnt) + 1, grpc_mdstr_as_c_string((grpc_mdstr *)md->key), @@ -566,7 +566,7 @@ grpc_mdelem *grpc_mdelem_from_metadata_strings(grpc_mdstr *mkey, shard->elems[idx] = md; gpr_mu_init(&md->mu_user_data); #ifdef GRPC_METADATA_REFCOUNT_DEBUG - gpr_log(GPR_DEBUG, "ELM NEW:%p:%d: '%s' = '%s'", md, + gpr_log(GPR_DEBUG, "ELM NEW:%p:%zu: '%s' = '%s'", (void *)md, gpr_atm_no_barrier_load(&md->refcnt), grpc_mdstr_as_c_string((grpc_mdstr *)md->key), grpc_mdstr_as_c_string((grpc_mdstr *)md->value)); @@ -639,7 +639,7 @@ grpc_mdelem *grpc_mdelem_ref(grpc_mdelem *gmd DEBUG_ARGS) { if (is_mdelem_static(gmd)) return gmd; #ifdef GRPC_METADATA_REFCOUNT_DEBUG gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "ELM REF:%p:%d->%d: '%s' = '%s'", md, + "ELM REF:%p:%zu->%zu: '%s' = '%s'", (void *)md, gpr_atm_no_barrier_load(&md->refcnt), gpr_atm_no_barrier_load(&md->refcnt) + 1, grpc_mdstr_as_c_string((grpc_mdstr *)md->key), @@ -649,7 +649,7 @@ grpc_mdelem *grpc_mdelem_ref(grpc_mdelem *gmd DEBUG_ARGS) { this function - meaning that no adjustment to mdtab_free is necessary, simplifying the logic here to be just an atomic increment */ /* use C assert to have this removed in opt builds */ - assert(gpr_atm_no_barrier_load(&md->refcnt) >= 1); + GPR_ASSERT(gpr_atm_no_barrier_load(&md->refcnt) >= 1); gpr_atm_no_barrier_fetch_add(&md->refcnt, 1); return gmd; } @@ -660,14 +660,16 @@ void grpc_mdelem_unref(grpc_mdelem *gmd DEBUG_ARGS) { if (is_mdelem_static(gmd)) return; #ifdef GRPC_METADATA_REFCOUNT_DEBUG gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "ELM UNREF:%p:%d->%d: '%s' = '%s'", md, + "ELM UNREF:%p:%zu->%zu: '%s' = '%s'", (void *)md, gpr_atm_no_barrier_load(&md->refcnt), gpr_atm_no_barrier_load(&md->refcnt) - 1, grpc_mdstr_as_c_string((grpc_mdstr *)md->key), grpc_mdstr_as_c_string((grpc_mdstr *)md->value)); #endif uint32_t hash = GRPC_MDSTR_KV_HASH(md->key->hash, md->value->hash); - if (1 == gpr_atm_full_fetch_add(&md->refcnt, -1)) { + const gpr_atm prev_refcount = gpr_atm_full_fetch_add(&md->refcnt, -1); + GPR_ASSERT(prev_refcount >= 1); + if (1 == prev_refcount) { /* once the refcount hits zero, some other thread can come along and free md at any time: it's unsafe from this point on to access it */ mdtab_shard *shard = @@ -676,10 +678,12 @@ void grpc_mdelem_unref(grpc_mdelem *gmd DEBUG_ARGS) { } } -const char *grpc_mdstr_as_c_string(grpc_mdstr *s) { +const char *grpc_mdstr_as_c_string(const grpc_mdstr *s) { return (const char *)GPR_SLICE_START_PTR(s->slice); } +size_t grpc_mdstr_length(const grpc_mdstr *s) { return GRPC_MDSTR_LENGTH(s); } + grpc_mdstr *grpc_mdstr_ref(grpc_mdstr *gs DEBUG_ARGS) { internal_string *s = (internal_string *)gs; if (is_mdstr_static(gs)) return gs; |