diff options
Diffstat (limited to 'src/core/ext/client_channel/method_config.c')
-rw-r--r-- | src/core/ext/client_channel/method_config.c | 56 |
1 files changed, 50 insertions, 6 deletions
diff --git a/src/core/ext/client_channel/method_config.c b/src/core/ext/client_channel/method_config.c index 49d1ad344e..4313ad5e0e 100644 --- a/src/core/ext/client_channel/method_config.c +++ b/src/core/ext/client_channel/method_config.c @@ -254,12 +254,12 @@ int grpc_method_config_table_cmp(const grpc_method_config_table* table1, return grpc_mdstr_hash_table_cmp(table1, table2); } -grpc_method_config* grpc_method_config_table_get_method_config( - const grpc_method_config_table* table, const grpc_mdstr* path) { - grpc_method_config* method_config = grpc_mdstr_hash_table_get(table, path); +void* grpc_method_config_table_get(const grpc_mdstr_hash_table* table, + const grpc_mdstr* path) { + void* value = grpc_mdstr_hash_table_get(table, path); // If we didn't find a match for the path, try looking for a wildcard // entry (i.e., change "/service/method" to "/service/*"). - if (method_config == NULL) { + if (value == NULL) { const char* path_str = grpc_mdstr_as_c_string(path); const char* sep = strrchr(path_str, '/') + 1; const size_t len = (size_t)(sep - path_str); @@ -269,10 +269,10 @@ grpc_method_config* grpc_method_config_table_get_method_config( buf[len + 1] = '\0'; grpc_mdstr* wildcard_path = grpc_mdstr_from_string(buf); gpr_free(buf); - method_config = grpc_mdstr_hash_table_get(table, wildcard_path); + value = grpc_mdstr_hash_table_get(table, wildcard_path); GRPC_MDSTR_UNREF(wildcard_path); } - return method_config; + return value; } static void* copy_arg(void* p) { return grpc_method_config_table_ref(p); } @@ -294,3 +294,47 @@ grpc_arg grpc_method_config_table_create_channel_arg( arg.value.pointer.vtable = &arg_vtable; return arg; } + +// State used by convert_entry() below. +typedef struct conversion_state { + void* (*convert_value)(const grpc_method_config* method_config); + const grpc_mdstr_hash_table_vtable* vtable; + size_t num_entries; + grpc_mdstr_hash_table_entry* entries; +} conversion_state; + +// A function to be passed to grpc_mdstr_hash_table_iterate() to create +// a copy of the entries. +static void convert_entry(const grpc_mdstr_hash_table_entry* entry, + void* user_data) { + conversion_state* state = user_data; + state->entries[state->num_entries].key = GRPC_MDSTR_REF(entry->key); + state->entries[state->num_entries].value = state->convert_value(entry->value); + state->entries[state->num_entries].vtable = state->vtable; + ++state->num_entries; +} + +grpc_mdstr_hash_table* grpc_method_config_table_convert( + const grpc_method_config_table* table, + void* (*convert_value)(const grpc_method_config* method_config), + const grpc_mdstr_hash_table_vtable* vtable) { + // Create an array of the entries in the table with converted values. + conversion_state state; + state.convert_value = convert_value; + state.vtable = vtable; + state.num_entries = 0; + state.entries = gpr_malloc(sizeof(grpc_mdstr_hash_table_entry) * + grpc_mdstr_hash_table_num_entries(table)); + grpc_mdstr_hash_table_iterate(table, convert_entry, &state); + // Create a new table based on the array we just constructed. + grpc_mdstr_hash_table* new_table = + grpc_mdstr_hash_table_create(state.num_entries, state.entries); + // Clean up the array. + for (size_t i = 0; i < state.num_entries; ++i) { + GRPC_MDSTR_UNREF(state.entries[i].key); + vtable->destroy_value(state.entries[i].value); + } + gpr_free(state.entries); + // Return the new table. + return new_table; +} |