X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=src%2Flibmemcached%2Fstring.cc;h=14bae430aea122c85646ec0bfb7c038c8b6602fd;hb=26dd4e6e3d500ce8f8865db4071e2508e604864e;hp=b821aca61edcb1de951774d4a81b2ca1f75b19e5;hpb=5e760300d15ef4c5b7eed3fb9f37920ebca2f6ec;p=awesomized%2Flibmemcached diff --git a/src/libmemcached/string.cc b/src/libmemcached/string.cc index b821aca6..14bae430 100644 --- a/src/libmemcached/string.cc +++ b/src/libmemcached/string.cc @@ -1,114 +1,85 @@ -/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab: - * - * Libmemcached library - * - * Copyright (C) 2011 Data Differential, http://datadifferential.com/ - * Copyright (C) 2006-2009 Brian Aker All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * - * * The names of its contributors may not be used to endorse or - * promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - - -#include - -inline static memcached_return_t _string_check(memcached_string_st *string, size_t need) -{ - if (need && need > (size_t)(string->current_size - (size_t)(string->end - string->string))) - { - size_t current_offset= (size_t) (string->end - string->string); - - /* This is the block multiplier. To keep it larger and surive division errors we must round it up */ - size_t adjust= (need - (size_t)(string->current_size - (size_t)(string->end - string->string))) / MEMCACHED_BLOCK_SIZE; +/* + +--------------------------------------------------------------------+ + | libmemcached-awesome - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020-2021 Michael Wallner https://awesome.co/ | + +--------------------------------------------------------------------+ +*/ + +#include "libmemcached/common.h" + +inline static memcached_return_t _string_check(memcached_string_st *string, size_t need) { + if (need && need > (size_t)(string->current_size - (size_t)(string->end - string->string))) { + size_t current_offset = (size_t)(string->end - string->string); + + /* This is the block multiplier. To keep it larger and surive division errors we must round it + * up */ + size_t adjust = (need - (size_t)(string->current_size - (size_t)(string->end - string->string))) + / MEMCACHED_BLOCK_SIZE; adjust++; - size_t new_size= sizeof(char) * (size_t)((adjust * MEMCACHED_BLOCK_SIZE) + string->current_size); + size_t new_size = + sizeof(char) * (size_t)((adjust * MEMCACHED_BLOCK_SIZE) + string->current_size); /* Test for overflow */ - if (new_size < need) - { + if (new_size < need) { char error_message[1024]; - int error_message_length= snprintf(error_message, sizeof(error_message),"Needed %ld, got %ld", (long)need, (long)new_size); - return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT, error_message, error_message_length); + int error_message_length = snprintf(error_message, sizeof(error_message), + "Needed %ld, got %ld", (long) need, (long) new_size); + return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT, + error_message, error_message_length); } - char *new_value= libmemcached_xrealloc(string->root, string->string, new_size, char); + char *new_value = libmemcached_xrealloc(string->root, string->string, new_size, char); - if (new_value == NULL) - { + if (new_value == NULL) { return memcached_set_error(*string->root, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT); } - string->string= new_value; - string->end= string->string + current_offset; + string->string = new_value; + string->end = string->string + current_offset; - string->current_size+= (MEMCACHED_BLOCK_SIZE * adjust); + string->current_size += (MEMCACHED_BLOCK_SIZE * adjust); } return MEMCACHED_SUCCESS; } -static inline void _init_string(memcached_string_st *self) -{ - self->current_size= 0; - self->end= self->string= NULL; +static inline void _init_string(memcached_string_st *self) { + self->current_size = 0; + self->end = self->string = NULL; } -memcached_string_st *memcached_string_create(Memcached *memc, memcached_string_st *self, size_t initial_size) -{ +memcached_string_st *memcached_string_create(Memcached *memc, memcached_string_st *self, + size_t initial_size) { WATCHPOINT_ASSERT(memc); /* Saving malloc calls :) */ - if (self) - { + if (self) { WATCHPOINT_ASSERT(self->options.is_initialized == false); memcached_set_allocated(self, false); - } - else - { - self= libmemcached_xmalloc(memc, memcached_string_st); + } else { + self = libmemcached_xmalloc(memc, memcached_string_st); - if (self == NULL) - { + if (self == NULL) { return NULL; } memcached_set_allocated(self, true); } - self->root= memc; + self->root = memc; _init_string(self); - if (memcached_failed(_string_check(self, initial_size))) - { - if (memcached_is_allocated(self)) - { + if (memcached_failed(_string_check(self, initial_size))) { + if (memcached_is_allocated(self)) { libmemcached_free(memc, self); } @@ -122,49 +93,40 @@ memcached_string_st *memcached_string_create(Memcached *memc, memcached_string_s return self; } -static memcached_return_t memcached_string_append_null(memcached_string_st& string) -{ - if (memcached_failed(_string_check(&string, 1))) - { +static memcached_return_t memcached_string_append_null(memcached_string_st &string) { + if (memcached_failed(_string_check(&string, 1))) { return MEMCACHED_MEMORY_ALLOCATION_FAILURE; } - *string.end= 0; + *string.end = 0; return MEMCACHED_SUCCESS; } -static memcached_return_t memcached_string_append_null(memcached_string_st *string) -{ - if (memcached_failed(_string_check(string, 1))) - { +static memcached_return_t memcached_string_append_null(memcached_string_st *string) { + if (memcached_failed(_string_check(string, 1))) { return MEMCACHED_MEMORY_ALLOCATION_FAILURE; } - *string->end= 0; + *string->end = 0; return MEMCACHED_SUCCESS; } -memcached_return_t memcached_string_append_character(memcached_string_st *string, - char character) -{ - if (memcached_failed(_string_check(string, 1))) - { +memcached_return_t memcached_string_append_character(memcached_string_st *string, char character) { + if (memcached_failed(_string_check(string, 1))) { return MEMCACHED_MEMORY_ALLOCATION_FAILURE; } - *string->end= character; + *string->end = character; string->end++; return MEMCACHED_SUCCESS; } -memcached_return_t memcached_string_append(memcached_string_st *string, - const char *value, size_t length) -{ - if (memcached_failed(_string_check(string, length))) - { +memcached_return_t memcached_string_append(memcached_string_st *string, const char *value, + size_t length) { + if (memcached_failed(_string_check(string, length))) { return MEMCACHED_MEMORY_ALLOCATION_FAILURE; } @@ -173,36 +135,32 @@ memcached_return_t memcached_string_append(memcached_string_st *string, WATCHPOINT_ASSERT(string->end >= string->string); memcpy(string->end, value, length); - string->end+= length; + string->end += length; return MEMCACHED_SUCCESS; } -char *memcached_string_c_copy(memcached_string_st *string) -{ - if (memcached_string_length(string) == 0) - { +char *memcached_string_c_copy(memcached_string_st *string) { + if (memcached_string_length(string) == 0) { return NULL; } - char *c_ptr= static_cast(libmemcached_malloc(string->root, (memcached_string_length(string)+1) * sizeof(char))); + char *c_ptr = static_cast( + libmemcached_malloc(string->root, (memcached_string_length(string) + 1) * sizeof(char))); - if (c_ptr == NULL) - { + if (c_ptr == NULL) { return NULL; } memcpy(c_ptr, memcached_string_value(string), memcached_string_length(string)); - c_ptr[memcached_string_length(string)]= 0; + c_ptr[memcached_string_length(string)] = 0; return c_ptr; } -bool memcached_string_set(memcached_string_st& string, const char* value, size_t length) -{ +bool memcached_string_set(memcached_string_st &string, const char *value, size_t length) { memcached_string_reset(&string); - if (memcached_success(memcached_string_append(&string, value, length))) - { + if (memcached_success(memcached_string_append(&string, value, length))) { memcached_string_append_null(string); return true; } @@ -210,89 +168,70 @@ bool memcached_string_set(memcached_string_st& string, const char* value, size_t return false; } -void memcached_string_reset(memcached_string_st *string) -{ - string->end= string->string; +void memcached_string_reset(memcached_string_st *string) { + string->end = string->string; } -void memcached_string_free(memcached_string_st& ptr) -{ +void memcached_string_free(memcached_string_st &ptr) { memcached_string_free(&ptr); } -void memcached_string_free(memcached_string_st *ptr) -{ - if (ptr == NULL) - { +void memcached_string_free(memcached_string_st *ptr) { + if (ptr == NULL) { return; } - if (ptr->string) - { + if (ptr->string) { libmemcached_free(ptr->root, ptr->string); } - if (memcached_is_allocated(ptr)) - { + if (memcached_is_allocated(ptr)) { libmemcached_free(ptr->root, ptr); - } - else - { - ptr->options.is_initialized= false; + } else { + ptr->options.is_initialized = false; } } -memcached_return_t memcached_string_check(memcached_string_st *string, size_t need) -{ +memcached_return_t memcached_string_check(memcached_string_st *string, size_t need) { return _string_check(string, need); } -bool memcached_string_resize(memcached_string_st& string, const size_t need) -{ +bool memcached_string_resize(memcached_string_st &string, const size_t need) { return memcached_success(_string_check(&string, need)); } -size_t memcached_string_length(const memcached_string_st *self) -{ - return size_t(self->end -self->string); +size_t memcached_string_length(const memcached_string_st *self) { + return size_t(self->end - self->string); } -size_t memcached_string_length(const memcached_string_st& self) -{ - return size_t(self.end -self.string); +size_t memcached_string_length(const memcached_string_st &self) { + return size_t(self.end - self.string); } -size_t memcached_string_size(const memcached_string_st *self) -{ +size_t memcached_string_size(const memcached_string_st *self) { return self->current_size; } -const char *memcached_string_value(const memcached_string_st *self) -{ +const char *memcached_string_value(const memcached_string_st *self) { return self->string; } -const char *memcached_string_value(const memcached_string_st& self) -{ +const char *memcached_string_value(const memcached_string_st &self) { return self.string; } -char *memcached_string_take_value(memcached_string_st *self) -{ - char* value= NULL; +char *memcached_string_take_value(memcached_string_st *self) { + char *value = NULL; assert_msg(self, "Invalid memcached_string_st"); - if (self) - { - if (memcached_string_length(self)) - { + if (self) { + if (memcached_string_length(self)) { // If we fail at adding the null, we copy and move on - if (memcached_failed(memcached_string_append_null(self))) - { + if (memcached_failed(memcached_string_append_null(self))) { return NULL; } - value= self->string; + value = self->string; _init_string(self); } } @@ -300,31 +239,25 @@ char *memcached_string_take_value(memcached_string_st *self) return value; } -char *memcached_string_value_mutable(const memcached_string_st *self) -{ +char *memcached_string_value_mutable(const memcached_string_st *self) { return self->string; } -char *memcached_string_c_str(memcached_string_st& self) -{ +char *memcached_string_c_str(memcached_string_st &self) { return self.string; } -void memcached_string_set_length(memcached_string_st *self, size_t length) -{ - self->end= self->string +length; +void memcached_string_set_length(memcached_string_st *self, size_t length) { + self->end = self->string + length; } -void memcached_string_set_length(memcached_string_st& self, const size_t length) -{ +void memcached_string_set_length(memcached_string_st &self, const size_t length) { assert(self.current_size >= length); - size_t set_length= length; - if (self.current_size > length) - { - if (memcached_failed(_string_check(&self, length))) - { - set_length= self.current_size; + size_t set_length = length; + if (self.current_size > length) { + if (memcached_failed(_string_check(&self, length))) { + set_length = self.current_size; } } - self.end= self.string +set_length; + self.end = self.string + set_length; }