X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=filter.c;h=1d938c45ac059a92ac59ac364be5abc73ebc2a13;hp=b97bdaaa3cbc9de39d62573da476495c73cc3e6a;hb=fa578bf1d070161cafcbcc69ca7b810414ee1a4b;hpb=e9caff38b33b06cf0bc90802539bffd13bfe07bc diff --git a/filter.c b/filter.c index b97bdaaa..1d938c45 100644 --- a/filter.c +++ b/filter.c @@ -1,16 +1,20 @@ /* - * Copyright (C) 2005-2008 Andre Noll + * Copyright (C) 2005-2011 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ /** \file filter.c The stand-alone filter program. */ -#include "para.h" +#include +#include +#include "para.h" #include "filter.cmdline.h" #include "list.h" #include "sched.h" +#include "ggo.h" +#include "buffer_tree.h" #include "filter.h" #include "string.h" #include "stdin.h" @@ -30,11 +34,6 @@ static struct stdin_task stdin_task_struct; /** pointer to the stdin task. */ static struct stdin_task *sit = &stdin_task_struct; -/** The task that filters the data. */ -static struct filter_chain filter_chain_struct; -/** Pointer to the filter chain. */ -static struct filter_chain *fc = &filter_chain_struct; - /** The task that writes converted data to stdout. */ static struct stdout_task stdout_task_struct; /** Pointer to the stdout task. */ @@ -43,66 +42,35 @@ static struct stdout_task *sot = &stdout_task_struct; /** Gengetopt struct that holds the command line args. */ static struct filter_args_info conf; -INIT_STDERR_LOGGING(conf.loglevel_arg); +static int loglevel; +INIT_STDERR_LOGGING(loglevel); -static void open_filters(void) +__noreturn static void print_help_and_die(void) { - int i; - struct filter_node *fn; - - FOR_EACH_FILTER_NODE(fn, fc, i) { - struct filter *f = filters + fn->filter_num; - f->open(fn); - PARA_INFO_LOG("opened %s filter\n", f->name); - fc->outbuf = fn->buf; - fc->out_loaded = &fn->loaded; - } -} - -static int init_filter_chain(void) -{ - int i, ret; - struct filter_node *fn; - - if (!conf.filter_given) - return -E_NO_FILTERS; - fc->num_filters = conf.filter_given; - fc->filter_nodes = para_malloc(fc->num_filters * sizeof(struct filter_node)); - fc->inbuf = sit->buf; - fc->in_loaded = &sit->loaded; - fc->input_error = &sit->task.error; - fc->task.error = 0; - fc->output_error = &sot->task.error; - fc->task.pre_select = filter_pre_select; - sprintf(fc->task.status, "filter chain"); - - FOR_EACH_FILTER_NODE(fn, fc, i) { - char *fa = conf.filter_arg[i]; - fn = fc->filter_nodes + i; - ret = check_filter_arg(fa, &fn->conf); - if (ret < 0) - goto err; - fn->filter_num = ret; - fn->fc = fc; - INIT_LIST_HEAD(&fn->callbacks); - PARA_DEBUG_LOG("filter #%d: %s\n", i, filters[fn->filter_num].name); - } - open_filters(); - return 1; -err: - free(fc->filter_nodes); - return ret; + int d = conf.detailed_help_given; + const char **p = d? filter_args_info_detailed_help + : filter_args_info_help; + + printf_or_die("%s\n\n", FILTER_CMDLINE_PARSER_PACKAGE "-" + FILTER_CMDLINE_PARSER_VERSION); + printf_or_die("%s\n\n", filter_args_info_usage); + for (; *p; p++) + printf_or_die("%s\n", *p); + print_filter_helps(d); + exit(0); } static int parse_config(int argc, char *argv[]) { static char *cf; /* config file */ struct stat statbuf; - int i; if (filter_cmdline_parser(argc, argv, &conf)) return -E_FILTER_SYNTAX; HANDLE_VERSION_FLAG("filter", conf); + if (conf.help_given || conf.detailed_help_given) + print_help_and_die(); + loglevel = get_loglevel_by_name(conf.loglevel_arg); if (!cf) { char *home = para_homedir(); cf = make_message("%s/.paraslash/filter.conf", home); @@ -113,20 +81,15 @@ static int parse_config(int argc, char *argv[]) .override = 0, .initialize = 0, .check_required = 0, - .check_ambiguity = 0 + .check_ambiguity = 0, + .print_errors = 1 }; if (filter_cmdline_parser_config_file(cf, &conf, ¶ms)) return -E_FILTER_SYNTAX; } - if (!conf.list_filters_given) - return 1; - printf("available filters: "); - FOR_EACH_SUPPORTED_FILTER(i) - printf("%s%s%s", i? " " : "", filters[i].name, - filters[i].parse_config? "*": ""); - printf("\nFilters marked with \"*\" have further command line options. Try\n" - "\tpara_filter -f ' -h'\nfor more information.\n"); - exit(EXIT_SUCCESS); + if (!conf.filter_given) + return -E_NO_FILTERS; + return 1; } /** @@ -143,36 +106,70 @@ static int parse_config(int argc, char *argv[]) */ int main(int argc, char *argv[]) { - int ret; static struct sched s; + int i, ret; + struct filter *f; + struct btr_node *parent; + struct filter_node **fns; - stdin_set_defaults(sit); - sit->buf = para_malloc(sit->bufsize), - - filter_init(filters); + filter_init(); ret = parse_config(argc, argv); if (ret < 0) goto out; - ret = init_filter_chain(); - if (ret < 0) - goto out; - sit->output_error = &fc->task.error; + sit->btrn = btr_new_node(&(struct btr_node_description) + EMBRACE(.name = "stdin")); + stdin_set_defaults(sit); + register_task(&sit->task); - stdout_set_defaults(sot); - sot->buf = fc->outbuf; - sot->loaded = fc->out_loaded; - sot->input_error = &fc->task.error; + fns = para_malloc(conf.filter_given * sizeof(*fns)); + for (i = 0, parent = sit->btrn; i < conf.filter_given; i++) { + char *fa = conf.filter_arg[i]; + struct filter_node *fn; - register_task(&sit->task); - register_task(&fc->task); + fn = fns[i] = para_calloc(sizeof(*fn)); + ret = check_filter_arg(fa, &fn->conf); + if (ret < 0) { + free(fn); + goto out_cleanup; + } + fn->filter_num = ret; + f = filters + fn->filter_num; + sprintf(fn->task.status, "%s", f->name); + PARA_DEBUG_LOG("filter #%d: %s\n", i, f->name); + fn->btrn = btr_new_node(&(struct btr_node_description) + EMBRACE(.name = f->name, .parent = parent, + .handler = f->execute, .context = fn)); + fn->task.pre_select = f->pre_select; + fn->task.post_select = f->post_select; + f->open(fn); + register_task(&fn->task); + parent = fn->btrn; + } + sot->btrn = btr_new_node(&(struct btr_node_description) + EMBRACE(.name = "stdout", .parent = parent)); + stdout_set_defaults(sot); register_task(&sot->task); + s.default_timeout.tv_sec = 1; s.default_timeout.tv_usec = 0; + btr_log_tree(sit->btrn, LL_INFO); ret = schedule(&s); - close_filters(fc); +out_cleanup: + for (i--; i >= 0; i--) { + struct filter_node *fn = fns[i]; + + f = filters + fn->filter_num; + if (f->close) + f->close(fn); + btr_free_node(fn->btrn); + free(fn->conf); + free(fn); + } + free(fns); + btr_free_node(sit->btrn); + btr_free_node(sot->btrn); out: - free(sit->buf); if (ret < 0) PARA_EMERG_LOG("%s\n", para_strerror(-ret)); - return ret < 0? EXIT_FAILURE : EXIT_SUCCESS; + exit(ret < 0? EXIT_FAILURE : EXIT_SUCCESS); }