X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=src%2Fbin%2Fmemdump.cc;h=7bed49232b8e983101fad4cf031678d5db8c524a;hb=b9f2cc374d16fa40dbaf32bb88934d2fc35d4298;hp=8e12066ba20e6103147d9732133bdd96d707dac5;hpb=5bb6f975322d3da0caf082b8d890132194d0a4ea;p=awesomized%2Flibmemcached diff --git a/src/bin/memdump.cc b/src/bin/memdump.cc index 8e12066b..7bed4923 100644 --- a/src/bin/memdump.cc +++ b/src/bin/memdump.cc @@ -1,239 +1,89 @@ -/* LibMemcached - * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/ - * Copyright (C) 2006-2009 Brian Aker - * All rights reserved. - * - * Use and distribution licensed under the BSD license. See - * the COPYING file in the parent directory for full text. - * - * Summary: - * - */ - +/* + +--------------------------------------------------------------------+ + | libmemcached - 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 Michael Wallner | + +--------------------------------------------------------------------+ +*/ + +#include #include "mem_config.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "libmemcached-1.0/memcached.h" - -#include "client_options.h" -#include "utilities.h" - -#define PROGRAM_NAME "memdump" +#define PROGRAM_NAME "memdump" #define PROGRAM_DESCRIPTION "Dump all values from one or many servers." +#define PROGRAM_VERSION "1.1" -/* Prototypes */ -static void options_parse(int argc, char *argv[]); - -static bool opt_binary=0; -static int opt_verbose= 0; -static char *opt_servers= NULL; -static char *opt_hash= NULL; -static char *opt_username; -static char *opt_passwd; - -/* Print the keys and counter how many were found */ -static memcached_return_t key_printer(const memcached_st *, - const char *key, size_t key_length, - void *) -{ - std::cout.write(key, key_length); - std::cout << std::endl; +#include "common/options.hpp" +#include "common/checks.hpp" +static memcached_return_t print(const memcached_st *, const char *k, size_t l, void *ctx) { + auto out = static_cast(ctx); + out->write(k, l); + out->put('\n'); return MEMCACHED_SUCCESS; } -int main(int argc, char *argv[]) -{ - memcached_dump_fn callbacks[1]; - - callbacks[0]= &key_printer; - - options_parse(argc, argv); - - if (opt_servers == NULL) - { - char *temp; +int main(int argc, char *argv[]) { + client_options opt{PROGRAM_NAME, PROGRAM_VERSION, PROGRAM_DESCRIPTION}; - if ((temp= getenv("MEMCACHED_SERVERS"))) - { - opt_servers= strdup(temp); - } - else if (argc >= 1 and argv[--argc]) - { - opt_servers= strdup(argv[argc]); - } - - if (opt_servers == NULL) - { - std::cerr << "No Servers provided" << std::endl; - exit(EXIT_FAILURE); + for (const auto &def : opt.defaults) { + switch (def.opt.val) { + case 'H': // no need for --hash + case 'b': // binary proto not available + break; + default: + opt.add(def); } } - memcached_server_st* servers= memcached_servers_parse(opt_servers); - if (servers == NULL or memcached_server_list_count(servers) == 0) - { - std::cerr << "Invalid server list provided:" << opt_servers << std::endl; - return EXIT_FAILURE; - } + opt.add("file", 'f', required_argument, "Output to file instead of standard output."); - memcached_st *memc= memcached_create(NULL); - if (memc == NULL) - { - std::cerr << "Could not allocate a memcached_st structure.\n" << std::endl; - return EXIT_FAILURE; - } - process_hash_option(memc, opt_hash); - - memcached_server_push(memc, servers); - memcached_server_list_free(servers); - memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL, - (uint64_t)opt_binary); - - if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0) - { - memcached_free(memc); - std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl; - return EXIT_FAILURE; + if (!opt.parse(argc, argv)) { + exit(EXIT_FAILURE); } - if (opt_username) - { - memcached_return_t ret; - if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd))) - { - std::cerr << memcached_last_error_message(memc) << std::endl; - memcached_free(memc); - return EXIT_FAILURE; - } + if (opt.isset("quiet") && !opt.isset("file")) { + std::cerr << "--quiet operation was requested, but --file was not set.\n"; + exit(EXIT_FAILURE); } - memcached_return_t rc= memcached_dump(memc, callbacks, NULL, 1); - - int exit_code= EXIT_SUCCESS; - if (memcached_failed(rc)) - { - if (opt_verbose) - { - std::cerr << "Failed to dump keys: " << memcached_last_error_message(memc) << std::endl; - } - exit_code= EXIT_FAILURE; + memcached_st memc; + if (!check_memcached(opt, memc)) { + exit(EXIT_FAILURE); } - memcached_free(memc); - - if (opt_servers) - { - free(opt_servers); - } - if (opt_hash) - { - free(opt_hash); + if (!opt.apply(&memc)) { + exit(EXIT_FAILURE); } - return exit_code; -} + memcached_dump_fn cb[1] = {&print}; + std::ofstream outfile{}; + std::ostream *outstream = check_ostream(opt, opt.argof("file"), outfile); -static void options_parse(int argc, char *argv[]) -{ - static struct option long_options[]= - { - {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION}, - {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP}, - {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET}, - {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE}, - {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG}, - {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS}, - {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH}, - {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY}, - {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME}, - {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD}, - {0, 0, 0, 0} - }; - - int option_index= 0; - bool opt_version= false; - bool opt_help= false; - while (1) - { - int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index); - - if (option_rv == -1) break; - - switch (option_rv) - { - case 0: - break; + auto rc = memcached_dump(&memc, cb, outstream, 1); - case OPT_BINARY: - opt_binary= true; - break; - - case OPT_VERBOSE: /* --verbose or -v */ - opt_verbose= OPT_VERBOSE; - break; - - case OPT_DEBUG: /* --debug or -d */ - opt_verbose= OPT_DEBUG; - break; - - case OPT_VERSION: /* --version or -V */ - opt_verbose= true; - break; - - case OPT_HELP: /* --help or -h */ - opt_help= true; - break; - - case OPT_SERVERS: /* --servers or -s */ - opt_servers= strdup(optarg); - break; - - case OPT_HASH: - opt_hash= strdup(optarg); - break; - - case OPT_USERNAME: - opt_username= optarg; - break; - - case OPT_PASSWD: - opt_passwd= optarg; - break; - - case OPT_QUIET: - close_stdio(); - break; - - case '?': - /* getopt_long already printed an error message. */ - exit(1); - default: - abort(); + if (outfile) { + if (opt.isset("debug")) { + std::cerr << "Flushing " << opt.argof("file") << ".\n"; } + outfile.flush(); } - if (opt_version) - { - version_command(PROGRAM_NAME); - exit(EXIT_SUCCESS); + if (MEMCACHED_SUCCESS != rc) { + if (!opt.isset("quiet")) { + std::cerr << "Failed to dump keys:" << memcached_last_error_message(&memc) << "\n"; + } + memcached_free(&memc); + exit(EXIT_FAILURE); } - if (opt_help) - { - help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL); - exit(EXIT_SUCCESS); - } + memcached_free(&memc); + exit(EXIT_SUCCESS); }