diff options
Diffstat (limited to 'src/test/modules/test_dsm_registry')
4 files changed, 108 insertions, 17 deletions
diff --git a/src/test/modules/test_dsm_registry/expected/test_dsm_registry.out b/src/test/modules/test_dsm_registry/expected/test_dsm_registry.out index 8ffbd343a05..8ded82e59d6 100644 --- a/src/test/modules/test_dsm_registry/expected/test_dsm_registry.out +++ b/src/test/modules/test_dsm_registry/expected/test_dsm_registry.out @@ -5,6 +5,12 @@ SELECT set_val_in_shmem(1236); (1 row) +SELECT set_val_in_hash('test', '1414'); + set_val_in_hash +----------------- + +(1 row) + \c SELECT get_val_in_shmem(); get_val_in_shmem @@ -12,3 +18,9 @@ SELECT get_val_in_shmem(); 1236 (1 row) +SELECT get_val_in_hash('test'); + get_val_in_hash +----------------- + 1414 +(1 row) + diff --git a/src/test/modules/test_dsm_registry/sql/test_dsm_registry.sql b/src/test/modules/test_dsm_registry/sql/test_dsm_registry.sql index b3351be0a16..c2e25cddaae 100644 --- a/src/test/modules/test_dsm_registry/sql/test_dsm_registry.sql +++ b/src/test/modules/test_dsm_registry/sql/test_dsm_registry.sql @@ -1,4 +1,6 @@ CREATE EXTENSION test_dsm_registry; SELECT set_val_in_shmem(1236); +SELECT set_val_in_hash('test', '1414'); \c SELECT get_val_in_shmem(); +SELECT get_val_in_hash('test'); diff --git a/src/test/modules/test_dsm_registry/test_dsm_registry--1.0.sql b/src/test/modules/test_dsm_registry/test_dsm_registry--1.0.sql index 8c55b0919b1..5da45155be9 100644 --- a/src/test/modules/test_dsm_registry/test_dsm_registry--1.0.sql +++ b/src/test/modules/test_dsm_registry/test_dsm_registry--1.0.sql @@ -8,3 +8,9 @@ CREATE FUNCTION set_val_in_shmem(val INT) RETURNS VOID CREATE FUNCTION get_val_in_shmem() RETURNS INT AS 'MODULE_PATHNAME' LANGUAGE C; + +CREATE FUNCTION set_val_in_hash(key TEXT, val TEXT) RETURNS VOID + AS 'MODULE_PATHNAME' LANGUAGE C; + +CREATE FUNCTION get_val_in_hash(key TEXT) RETURNS TEXT + AS 'MODULE_PATHNAME' LANGUAGE C; diff --git a/src/test/modules/test_dsm_registry/test_dsm_registry.c b/src/test/modules/test_dsm_registry/test_dsm_registry.c index 462a80f8790..141c8ed1b34 100644 --- a/src/test/modules/test_dsm_registry/test_dsm_registry.c +++ b/src/test/modules/test_dsm_registry/test_dsm_registry.c @@ -15,6 +15,7 @@ #include "fmgr.h" #include "storage/dsm_registry.h" #include "storage/lwlock.h" +#include "utils/builtins.h" PG_MODULE_MAGIC; @@ -24,15 +25,31 @@ typedef struct TestDSMRegistryStruct LWLock lck; } TestDSMRegistryStruct; -static TestDSMRegistryStruct *tdr_state; +typedef struct TestDSMRegistryHashEntry +{ + char key[64]; + dsa_pointer val; +} TestDSMRegistryHashEntry; + +static TestDSMRegistryStruct *tdr_dsm; +static dsa_area *tdr_dsa; +static dshash_table *tdr_hash; + +static const dshash_parameters dsh_params = { + offsetof(TestDSMRegistryHashEntry, val), + sizeof(TestDSMRegistryHashEntry), + dshash_strcmp, + dshash_strhash, + dshash_strcpy +}; static void -tdr_init_shmem(void *ptr) +init_tdr_dsm(void *ptr) { - TestDSMRegistryStruct *state = (TestDSMRegistryStruct *) ptr; + TestDSMRegistryStruct *dsm = (TestDSMRegistryStruct *) ptr; - LWLockInitialize(&state->lck, LWLockNewTrancheId()); - state->val = 0; + LWLockInitialize(&dsm->lck, LWLockNewTrancheId()); + dsm->val = 0; } static void @@ -40,11 +57,17 @@ tdr_attach_shmem(void) { bool found; - tdr_state = GetNamedDSMSegment("test_dsm_registry", - sizeof(TestDSMRegistryStruct), - tdr_init_shmem, - &found); - LWLockRegisterTranche(tdr_state->lck.tranche, "test_dsm_registry"); + tdr_dsm = GetNamedDSMSegment("test_dsm_registry_dsm", + sizeof(TestDSMRegistryStruct), + init_tdr_dsm, + &found); + LWLockRegisterTranche(tdr_dsm->lck.tranche, "test_dsm_registry"); + + if (tdr_dsa == NULL) + tdr_dsa = GetNamedDSA("test_dsm_registry_dsa", &found); + + if (tdr_hash == NULL) + tdr_hash = GetNamedDSHash("test_dsm_registry_hash", &dsh_params, &found); } PG_FUNCTION_INFO_V1(set_val_in_shmem); @@ -53,9 +76,9 @@ set_val_in_shmem(PG_FUNCTION_ARGS) { tdr_attach_shmem(); - LWLockAcquire(&tdr_state->lck, LW_EXCLUSIVE); - tdr_state->val = PG_GETARG_UINT32(0); - LWLockRelease(&tdr_state->lck); + LWLockAcquire(&tdr_dsm->lck, LW_EXCLUSIVE); + tdr_dsm->val = PG_GETARG_INT32(0); + LWLockRelease(&tdr_dsm->lck); PG_RETURN_VOID(); } @@ -68,9 +91,57 @@ get_val_in_shmem(PG_FUNCTION_ARGS) tdr_attach_shmem(); - LWLockAcquire(&tdr_state->lck, LW_SHARED); - ret = tdr_state->val; - LWLockRelease(&tdr_state->lck); + LWLockAcquire(&tdr_dsm->lck, LW_SHARED); + ret = tdr_dsm->val; + LWLockRelease(&tdr_dsm->lck); + + PG_RETURN_INT32(ret); +} + +PG_FUNCTION_INFO_V1(set_val_in_hash); +Datum +set_val_in_hash(PG_FUNCTION_ARGS) +{ + TestDSMRegistryHashEntry *entry; + char *key = TextDatumGetCString(PG_GETARG_DATUM(0)); + char *val = TextDatumGetCString(PG_GETARG_DATUM(1)); + bool found; + + if (strlen(key) >= offsetof(TestDSMRegistryHashEntry, val)) + ereport(ERROR, + (errmsg("key too long"))); + + tdr_attach_shmem(); + + entry = dshash_find_or_insert(tdr_hash, key, &found); + if (found) + dsa_free(tdr_dsa, entry->val); + + entry->val = dsa_allocate(tdr_dsa, strlen(val) + 1); + strcpy(dsa_get_address(tdr_dsa, entry->val), val); + + dshash_release_lock(tdr_hash, entry); + + PG_RETURN_VOID(); +} + +PG_FUNCTION_INFO_V1(get_val_in_hash); +Datum +get_val_in_hash(PG_FUNCTION_ARGS) +{ + TestDSMRegistryHashEntry *entry; + char *key = TextDatumGetCString(PG_GETARG_DATUM(0)); + text *val = NULL; + + tdr_attach_shmem(); + + entry = dshash_find(tdr_hash, key, false); + if (entry == NULL) + PG_RETURN_NULL(); + + val = cstring_to_text(dsa_get_address(tdr_dsa, entry->val)); + + dshash_release_lock(tdr_hash, entry); - PG_RETURN_UINT32(ret); + PG_RETURN_TEXT_P(val); } |