diff options
Diffstat (limited to 'src/mds-registry/mds-registry.c')
-rw-r--r-- | src/mds-registry/mds-registry.c | 151 |
1 files changed, 1 insertions, 150 deletions
diff --git a/src/mds-registry/mds-registry.c b/src/mds-registry/mds-registry.c index b41733a..fa6a3b5 100644 --- a/src/mds-registry/mds-registry.c +++ b/src/mds-registry/mds-registry.c @@ -19,6 +19,7 @@ #include "util.h" #include "globals.h" +#include "reexec.h" #include <libmdsserver/macros.h> #include <libmdsserver/util.h> @@ -36,8 +37,6 @@ -#define MDS_REGISTRY_VARS_VERSION 0 - /** @@ -148,154 +147,6 @@ int postinitialise_server(void) /** - * Calculate the number of bytes that will be stored by `marshal_server` - * - * On failure the program should `abort()` or exit by other means. - * However it should not be possible for this function to fail. - * - * @return The number of bytes that will be stored by `marshal_server` - */ -size_t marshal_server_size(void) -{ - size_t i, rc = 2 * sizeof(int) + sizeof(int32_t) + 3 * sizeof(size_t); - hash_entry_t* entry; - - rc += mds_message_marshal_size(&received); - - foreach_hash_table_entry (reg_table, i, entry) - { - char* command = (char*)(void*)(entry->key); - size_t len = strlen(command) + 1; - client_list_t* list = (client_list_t*)(void*)(entry->value); - - rc += len + sizeof(size_t) + client_list_marshal_size(list); - } - - return rc; -} - - -/** - * Marshal server implementation specific data into a buffer - * - * @param state_buf The buffer for the marshalled data - * @return Non-zero on error - */ -int marshal_server(char* state_buf) -{ - size_t i, n = mds_message_marshal_size(&received); - hash_entry_t* entry; - - buf_set_next(state_buf, int, MDS_REGISTRY_VARS_VERSION); - buf_set_next(state_buf, int, connected); - buf_set_next(state_buf, int32_t, message_id); - buf_set_next(state_buf, size_t, n); - mds_message_marshal(&received, state_buf); - state_buf += n / sizeof(char); - - buf_set_next(state_buf, size_t, reg_table.capacity); - buf_set_next(state_buf, size_t, reg_table.size); - foreach_hash_table_entry (reg_table, i, entry) - { - char* command = (char*)(void*)(entry->key); - size_t len = strlen(command) + 1; - client_list_t* list = (client_list_t*)(void*)(entry->value); - - memcpy(state_buf, command, len * sizeof(char)); - state_buf += len; - - n = client_list_marshal_size(list); - buf_set_next(state_buf, size_t, n); - client_list_marshal(list, state_buf); - state_buf += n / sizeof(char); - } - - hash_table_destroy(®_table, (free_func*)reg_table_free_key, (free_func*)reg_table_free_value); - mds_message_destroy(&received); - return 0; -} - - -/** - * Unmarshal server implementation specific data and update the servers state accordingly - * - * On critical failure the program should `abort()` or exit by other means. - * That is, do not let `reexec_failure_recover` run successfully, if it unrecoverable - * error has occurred or one severe enough that it is better to simply respawn. - * - * @param state_buf The marshalled data that as not been read already - * @return Non-zero on error - */ -int unmarshal_server(char* state_buf) -{ - char* command; - client_list_t* list; - size_t i, n, m; - int stage = 0; - - /* buf_get_next(state_buf, int, MDS_REGISTRY_VARS_VERSION); */ - buf_next(state_buf, int, 1); - buf_get_next(state_buf, int, connected); - buf_get_next(state_buf, int32_t, message_id); - buf_get_next(state_buf, size_t, n); - fail_if (mds_message_unmarshal(&received, state_buf)); - state_buf += n / sizeof(char); - stage = 1; - - buf_get_next(state_buf, size_t, n); - fail_if (hash_table_create_tuned(®_table, n)); - buf_get_next(state_buf, size_t, n); - for (i = 0; i < n; i++) - { - stage = 1; - fail_if ((command = strdup(state_buf)) == NULL); - state_buf += strlen(command) + 1; - - stage = 2; - fail_if ((list = malloc(sizeof(client_list_t))) == NULL); - buf_get_next(state_buf, size_t, m); - stage = 3; - fail_if (client_list_unmarshal(list, state_buf)); - state_buf += m / sizeof(char); - - hash_table_put(®_table, (size_t)(void*)command, (size_t)(void*)list); - fail_if (errno); - } - - reg_table.key_comparator = (compare_func*)string_comparator; - reg_table.hasher = (hash_func*)string_hash; - - return 0; - pfail: - perror(*argv); - mds_message_destroy(&received); - if (stage >= 1) - hash_table_destroy(®_table, (free_func*)reg_table_free_key, (free_func*)reg_table_free_value); - if (stage >= 2) - free(command); - if (stage >= 3) - { - client_list_destroy(list); - free(list); - } - abort(); - return -1; -} - - -/** - * Attempt to recover from a re-exec failure that has been - * detected after the server successfully updated it execution image - * - * @return Non-zero on error - */ -int __attribute__((const)) reexec_failure_recover(void) -{ - return -1; -} - - -/** * Perform the server's mission * * @return Non-zero on error |