X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_fetch.c;h=d3f012197d6a177a30356b90161650c4739c7653;hb=b923c009bf61ac5b82379ae1e48f243ad61a4ef0;hp=37cec5d30366a857b9e99f7e7424170a5ff75326;hpb=34a8c3858f30b02568c87f56a827f618aba6d6be;p=awesomized%2Flibmemcached diff --git a/libmemcached/memcached_fetch.c b/libmemcached/memcached_fetch.c index 37cec5d3..d3f01219 100644 --- a/libmemcached/memcached_fetch.c +++ b/libmemcached/memcached_fetch.c @@ -1,225 +1,102 @@ #include "common.h" #include "memcached_io.h" -memcached_return value_fetch(memcached_server_st *ptr, - char *buffer, - memcached_result_st *result) +char *memcached_fetch(memcached_st *ptr, char *key, size_t *key_length, + size_t *value_length, + uint32_t *flags, + memcached_return *error) { - memcached_return rc= MEMCACHED_SUCCESS; - char *string_ptr; - char *end_ptr; - char *next_ptr; - size_t value_length; - size_t read_length; - size_t to_read; - char *value_ptr; - - end_ptr= buffer + MEMCACHED_DEFAULT_COMMAND_SIZE; - - result->key_length= 0; - result->flags= 0; - memcached_string_reset(&result->value); - - string_ptr= buffer; - string_ptr+= 6; /* "VALUE " */ - + memcached_result_st *result_buffer= &ptr->result; - /* We load the key */ + unlikely (ptr->flags & MEM_USE_UDP) { - char *key; - - key= result->key; - result->key_length= 0; - - for (; isgraph(*string_ptr); string_ptr++) - { - *key= *string_ptr; - key++; - result->key_length++; - } - result->key[result->key_length]= 0; + *error= MEMCACHED_NOT_SUPPORTED; + return NULL; } - if (end_ptr == string_ptr) - goto read_error; + result_buffer= memcached_fetch_result(ptr, result_buffer, error); - /* Flags fetch move past space */ - string_ptr++; - if (end_ptr == string_ptr) - goto read_error; - for (next_ptr= string_ptr; isdigit(*string_ptr); string_ptr++); - result->flags= (uint32_t)strtol(next_ptr, &string_ptr, 10); - - if (end_ptr == string_ptr) - goto read_error; - - /* Length fetch move past space*/ - string_ptr++; - if (end_ptr == string_ptr) - goto read_error; - - for (next_ptr= string_ptr; isdigit(*string_ptr); string_ptr++); - value_length= (size_t)strtoll(next_ptr, &string_ptr, 10); - - if (end_ptr == string_ptr) - goto read_error; - - /* Skip spaces */ - if (*string_ptr == '\r') + if (result_buffer == NULL || *error != MEMCACHED_SUCCESS) { - /* Skip past the \r\n */ - string_ptr+= 2; - result->cas= 0; - } - else - { - string_ptr++; - for (next_ptr= string_ptr; isdigit(*string_ptr); string_ptr++); - result->cas= (size_t)strtoll(next_ptr, &string_ptr, 10); + WATCHPOINT_ASSERT(result_buffer == NULL); + *value_length= 0; + return NULL; } - if (end_ptr < string_ptr) - goto read_error; + *value_length= memcached_string_length(&result_buffer->value); - /* We add two bytes so that we can walk the \r\n */ - rc= memcached_string_check(&result->value, value_length+2); - if (rc != MEMCACHED_SUCCESS) + if (key) { - value_length= 0; - return MEMCACHED_MEMORY_ALLOCATION_FAILURE; + strncpy(key, result_buffer->key, result_buffer->key_length); + *key_length= result_buffer->key_length; } - value_ptr= memcached_string_value(&result->value); - read_length= 0; - /* - We read the \r\n into the string since not doing so is more - cycles then the waster of memory to do so. - - We are null terminating through, which will most likely make - some people lazy about using the return length. - */ - to_read= (value_length) + 2; - read_length= memcached_io_read(ptr, value_ptr, to_read); - if (read_length != (size_t)(value_length + 2)) - { - goto read_error; - } - -/* This next bit blows the API, but this is internal....*/ - { - char *char_ptr; - char_ptr= memcached_string_value(&result->value);; - char_ptr[value_length]= 0; - char_ptr[value_length + 1]= 0; - memcached_string_set_length(&result->value, value_length); - } - - return MEMCACHED_SUCCESS; - -read_error: - memcached_io_reset(ptr); + if (result_buffer->flags) + *flags= result_buffer->flags; + else + *flags= 0; - return MEMCACHED_PARTIAL_READ; + return memcached_string_c_copy(&result_buffer->value); } -char *memcached_fetch(memcached_st *ptr, char *key, size_t *key_length, - size_t *value_length, - uint32_t *flags, - memcached_return *error) +memcached_result_st *memcached_fetch_result(memcached_st *ptr, + memcached_result_st *result, + memcached_return *error) { - memcached_result_st *result_buffer= &ptr->result; + memcached_server_st *server; - while (ptr->cursor_server < ptr->number_of_hosts) + unlikely (ptr->flags & MEM_USE_UDP) { - char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE]; - - if (memcached_server_response_count(&ptr->hosts[ptr->cursor_server]) == 0) - { - ptr->cursor_server++; - continue; - } - - *error= memcached_response(&ptr->hosts[ptr->cursor_server], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, result_buffer); - - if (*error == MEMCACHED_END) /* END means that we move on to the next */ - { - memcached_server_response_reset(&ptr->hosts[ptr->cursor_server]); - ptr->cursor_server++; - continue; - } - else if (*error == MEMCACHED_SUCCESS) - { - *value_length= memcached_string_length(&result_buffer->value); - - if (key) - { - strncpy(key, result_buffer->key, result_buffer->key_length); - *key_length= result_buffer->key_length; - } - - if (result_buffer->flags) - *flags= result_buffer->flags; - else - *flags= 0; - - return memcached_string_c_copy(&result_buffer->value); - } - else - { - *value_length= 0; - return NULL; - } + *error= MEMCACHED_NOT_SUPPORTED; + return NULL; } - ptr->cursor_server= 0; - *value_length= 0; - return NULL; -} - -memcached_result_st *memcached_fetch_result(memcached_st *ptr, - memcached_result_st *result, - memcached_return *error) -{ if (result == NULL) - result= memcached_result_create(ptr, NULL); - - WATCHPOINT_ASSERT(result->value.is_allocated != MEMCACHED_USED); - -#ifdef UNUSED - if (ptr->flags & MEM_NO_BLOCK) - memcached_io_preread(ptr); -#endif + if ((result= memcached_result_create(ptr, NULL)) == NULL) + return NULL; - while (ptr->cursor_server < ptr->number_of_hosts) + while ((server = memcached_io_get_readable_server(ptr)) != NULL) { char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE]; + *error= memcached_response(server, buffer, sizeof(buffer), result); - if (memcached_server_response_count(&ptr->hosts[ptr->cursor_server]) == 0) - { - ptr->cursor_server++; - continue; - } - - *error= memcached_response(&ptr->hosts[ptr->cursor_server], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, result); - - if (*error == MEMCACHED_END) /* END means that we move on to the next */ - { - memcached_server_response_reset(&ptr->hosts[ptr->cursor_server]); - ptr->cursor_server++; - continue; - } - else if (*error == MEMCACHED_SUCCESS) + if (*error == MEMCACHED_SUCCESS) return result; + else if (*error == MEMCACHED_END) + memcached_server_response_reset(server); else - return NULL; + break; } /* We have completed reading data */ - if (result->is_allocated == MEMCACHED_ALLOCATED) + if (result->is_allocated) memcached_result_free(result); else memcached_string_reset(&result->value); - ptr->cursor_server= 0; return NULL; } + +memcached_return memcached_fetch_execute(memcached_st *ptr, + memcached_execute_function *callback, + void *context, + unsigned int number_of_callbacks) +{ + memcached_result_st *result= &ptr->result; + memcached_return rc= MEMCACHED_FAILURE; + unsigned int x; + + while ((result= memcached_fetch_result(ptr, result, &rc)) != NULL) + { + if (rc == MEMCACHED_SUCCESS) + { + for (x= 0; x < number_of_callbacks; x++) + { + rc= (*callback[x])(ptr, result, context); + if (rc != MEMCACHED_SUCCESS) + break; + } + } + } + return rc; +}