X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/00b2e701ab8ca3dd350bb8e9d65313986cabe8f0..c1194401ce4a41ff54a7591f4cf33c9ce2756978:/src/simgrid/sg_config.cpp diff --git a/src/simgrid/sg_config.cpp b/src/simgrid/sg_config.cpp index 415a9c78d1..aad9dd65fa 100644 --- a/src/simgrid/sg_config.cpp +++ b/src/simgrid/sg_config.cpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2009-2019. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -18,6 +18,21 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid"); +static simgrid::config::Flag cfg_continue_after_help + {"help-nostop", "Do not stop the execution when --help is found", false}; + +/** @brief Allow other libraries to react to the --help flag, too + * + * When finding --help on the command line, simgrid usually stops right after displaying its help message. + * If you are writing a library using simgrid, you may want to display your own help message before everything stops. + * If so, just call this function before having simgrid parsing the command line, and you will be given the control + * even if the user is asking for help. + */ +void sg_config_continue_after_help() +{ + cfg_continue_after_help = true; +} + /* 0: beginning of time (config cannot be changed yet) * 1: initialized: cfg_set created (config can now be changed) * 2: configured: command line parsed and config part of platform file was @@ -38,21 +53,25 @@ bool _sg_cfg_exit_asap = false; /* Parse the command line, looking for options */ static void sg_config_cmd_line(int *argc, char **argv) { - int shall_exit = 0; + bool shall_exit = false; int i; int j; + bool parse_args = true; // Stop parsing the parameters once we found '--' for (j = i = 1; i < *argc; i++) { - if (not strncmp(argv[i], "--cfg=", strlen("--cfg="))) { + if (not strcmp("--", argv[i])) { + parse_args = false; + // Remove that '--' from the arguments + } else if (parse_args && not strncmp(argv[i], "--cfg=", strlen("--cfg="))) { char *opt = strchr(argv[i], '='); opt++; simgrid::config::set_parse(opt); XBT_DEBUG("Did apply '%s' as config setting", opt); - } else if (not strcmp(argv[i], "--version")) { + } else if (parse_args && not strcmp(argv[i], "--version")) { printf("%s\n", SIMGRID_VERSION_STRING); - shall_exit = 1; - } else if (not strcmp(argv[i], "--cfg-help") || not strcmp(argv[i], "--help")) { + shall_exit = true; + } else if (parse_args && (not strcmp(argv[i], "--cfg-help") || not strcmp(argv[i], "--help"))) { printf("Description of the configuration accepted by this simulator:\n"); simgrid::config::help(); printf( @@ -69,13 +88,14 @@ static void sg_config_cmd_line(int *argc, char **argv) " --version to get SimGrid version information.\n" "\n" ); - shall_exit = 1; - } else if (not strcmp(argv[i], "--help-aliases")) { + shall_exit = not cfg_continue_after_help; + argv[j++] = argv[i]; // Preserve the --help in argv just in case someone else wants to see it + } else if (parse_args && not strcmp(argv[i], "--help-aliases")) { printf("Here is a list of all deprecated option names, with their replacement.\n"); simgrid::config::show_aliases(); printf("Please consider using the recent names\n"); - shall_exit = 1; - } else if (not strcmp(argv[i], "--help-models")) { + shall_exit = true; + } else if (parse_args && not strcmp(argv[i], "--help-models")) { model_help("host", surf_host_model_description); printf("\n"); model_help("CPU", surf_cpu_model_description); @@ -87,10 +107,10 @@ static void sg_config_cmd_line(int *argc, char **argv) surf_optimization_mode_description[k].name, surf_optimization_mode_description[k].description); printf("Both network and CPU models have 'Lazy' as default optimization level\n\n"); - shall_exit = 1; - } else if (not strcmp(argv[i], "--help-tracing")) { + shall_exit = true; + } else if (parse_args && not strcmp(argv[i], "--help-tracing")) { TRACE_help(); - shall_exit = 1; + shall_exit = true; } else { argv[j++] = argv[i]; } @@ -299,8 +319,8 @@ void sg_config_init(int *argc, char **argv) extern bool _sg_do_verbose_exit; simgrid::config::bind_flag(_sg_do_verbose_exit, "verbose-exit", "Activate the \"do nothing\" mode in Ctrl-C"); - simgrid::config::declare_flag("contexts/stack-size", "Stack size of contexts in KiB", 8 * 1024, - [](int value) { smx_context_stack_size = value * 1024; }); + simgrid::config::declare_flag("contexts/stack-size", "Stack size of contexts in KiB (not with threads)", + 8 * 1024, [](int value) { smx_context_stack_size = value * 1024; }); simgrid::config::alias("contexts/stack-size", {"contexts/stack_size"}); /* guard size for contexts stacks in memory pages */ @@ -324,7 +344,7 @@ void sg_config_init(int *argc, char **argv) /* synchronization mode for parallel user contexts */ #if HAVE_FUTEX_H std::string default_synchro_mode = "futex"; -#else //No futex on mac and posix is unimplememted yet +#else // No futex on mac and posix is unimplemented yet std::string default_synchro_mode = "busy_wait"; #endif simgrid::config::declare_flag("contexts/synchro", "Synchronization mode to use when running contexts in " @@ -446,9 +466,6 @@ void sg_config_init(int *argc, char **argv) simgrid::config::declare_flag("smpi/alltoallv", "Which collective to use for alltoallv", ""); simgrid::config::declare_flag("smpi/bcast", "Which collective to use for bcast", ""); simgrid::config::declare_flag("smpi/reduce", "Which collective to use for reduce", ""); - - simgrid::config::declare_flag("smpi/plugin/lb/migration-frequency", "After how many migrations should the load balancer" - "compute a new mapping?", 10); #endif // HAVE_SMPI /* Others */