From 7f1944a47823fc48eef244257b80675a226f86b8 Mon Sep 17 00:00:00 2001 From: oharboe Date: Mon, 25 Feb 2008 17:32:53 +0000 Subject: Pavel Chromy - multiple log listeners - added OUTPUT() to replace printf - fix formatting git-svn-id: svn://svn.berlios.de/openocd/trunk@346 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/helper/command.c | 1225 +++++++++++++++++++++++++------------------------- 1 file changed, 607 insertions(+), 618 deletions(-) (limited to 'src/helper/command.c') diff --git a/src/helper/command.c b/src/helper/command.c index 4b6de26c..f13a86c1 100644 --- a/src/helper/command.c +++ b/src/helper/command.c @@ -1,618 +1,607 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.de * - * * - * part of this file is taken from libcli (libcli.sourceforge.net) * - * Copyright (C) David Parrish (david@dparrish.com) * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - * This program is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU General Public License for more details. * - * * - * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "replacements.h" - -#include "command.h" - -#include "log.h" -#include "time_support.h" - -#include -#include -#include -#include -#include -#include - -void command_print_help_line(command_context_t* context, struct command_s *command, int indent); - -int handle_sleep_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int build_unique_lengths(command_context_t *context, command_t *commands) -{ - command_t *c, *p; - - /* iterate through all commands */ - for (c = commands; c; c = c->next) - { - /* find out how many characters are required to uniquely identify a command */ - for (c->unique_len = 1; c->unique_len <= strlen(c->name); c->unique_len++) - { - int foundmatch = 0; - - /* for every command, see if the current length is enough */ - for (p = commands; p; p = p->next) - { - /* ignore the command itself */ - if (c == p) - continue; - - /* compare commands up to the current length */ - if (strncmp(p->name, c->name, c->unique_len) == 0) - foundmatch++; - } - - /* when none of the commands matched, we've found the minimum length required */ - if (!foundmatch) - break; - } - - /* if the current command has children, build the unique lengths for them */ - if (c->children) - build_unique_lengths(context, c->children); - } - - return ERROR_OK; -} - -/* Avoid evaluating this each time we add a command. Reduces overhead from O(n^2) to O(n). - * Makes a difference on ARM7 types machines and is not observable on GHz machines. - */ -static int unique_length_dirty = 1; - -command_t* register_command(command_context_t *context, command_t *parent, char *name, int (*handler)(struct command_context_s *context, char* name, char** args, int argc), enum command_mode mode, char *help) -{ - command_t *c, *p; - unique_length_dirty = 1; - - if (!context || !name) - return NULL; - - c = malloc(sizeof(command_t)); - - c->name = strdup(name); - c->parent = parent; - c->children = NULL; - c->handler = handler; - c->mode = mode; - if (help) - c->help = strdup(help); - else - c->help = NULL; - c->unique_len = 0; - c->next = NULL; - - /* place command in tree */ - if (parent) - { - if (parent->children) - { - /* find last child */ - for (p = parent->children; p && p->next; p = p->next); - if (p) - p->next = c; - } - else - { - parent->children = c; - } - } - else - { - if (context->commands) - { - /* find last command */ - for (p = context->commands; p && p->next; p = p->next); - if (p) - p->next = c; - } - else - { - context->commands = c; - } - } - - return c; -} - -int unregister_command(command_context_t *context, char *name) -{ - unique_length_dirty = 1; - - command_t *c, *p = NULL, *c2; - - if ((!context) || (!name)) - return ERROR_INVALID_ARGUMENTS; - - /* find command */ - for (c = context->commands; c; c = c->next) - { - if (strcmp(name, c->name) == 0) - { - /* unlink command */ - if (p) - { - p->next = c->next; - } - else - { - context->commands = c->next; - } - - /* unregister children */ - if (c->children) - { - for (c2 = c->children; c2; c2 = c2->next) - { - free(c2->name); - if (c2->help) - free(c2->help); - free(c2); - } - } - - /* delete command */ - free(c->name); - if (c->help) - free(c->help); - free(c); - } - - /* remember the last command for unlinking */ - p = c; - } - - return ERROR_OK; -} - -int parse_line(char *line, char *words[], int max_words) -{ - int nwords = 0; - char *p = line; - char *word_start = line; - int inquote = 0; - - while (nwords < max_words - 1) - { - /* check if we reached - * a terminating NUL - * a matching closing quote character " or ' - * we're inside a word but not a quote, and the current character is whitespace - */ - if (!*p || *p == inquote || (word_start && !inquote && isspace(*p))) - { - /* we're inside a word or quote, and reached its end*/ - if (word_start) - { - int len; - char *word_end=p; - - /* This will handle extra whitespace within quotes */ - while (isspace(*word_start)&&(word_start0) - { - /* copy the word */ - memcpy(words[nwords] = malloc(len + 1), word_start, len); - /* add terminating NUL */ - words[nwords++][len] = 0; - } - } - /* we're done parsing the line */ - if (!*p) - break; - - /* skip over trailing quote or whitespace*/ - if (inquote || isspace(*p)) - p++; - while (isspace(*p)) - p++; - - inquote = 0; - word_start = 0; - } - else if (*p == '"' || *p == '\'') - { - /* we've reached the beginning of a quote */ - inquote = *p++; - word_start = p; - } - else - { - /* we've reached the beginning of a new word */ - if (!word_start) - word_start = p; - - /* normal character, skip */ - p++; - } - } - - return nwords; -} - -void command_print(command_context_t *context, char *format, ...) -{ - char *buffer = NULL; - int n, size = 0; - char *p; - - /* process format string */ - for (;;) - { - va_list ap; - va_start(ap, format); - if (!buffer || (n = vsnprintf(buffer, size, format, ap)) >= size) - { - /* increase buffer until it fits the whole string */ - if (!(p = realloc(buffer, size += 4096))) - { - /* gotta free up */ - if (buffer) - free(buffer); - va_end(ap); - return; - } - - buffer = p; - - va_end(ap); - continue; - } - va_end(ap); - break; - } - - /* vsnprintf failed */ - if (n < 0) - { - if (buffer) - free(buffer); - return; - } - - p = buffer; - - /* process lines in buffer */ - do { - char *next = strchr(p, '\n'); - - if (next) - *next++ = 0; - - if (context->output_handler) - context->output_handler(context, p); - - p = next; - } while (p); - - if (buffer) - free(buffer); -} - -int find_and_run_command(command_context_t *context, command_t *commands, char *words[], int num_words, int start_word) -{ - command_t *c; - - if (unique_length_dirty) - { - unique_length_dirty = 0; - /* update unique lengths */ - build_unique_lengths(context, context->commands); - } - - for (c = commands; c; c = c->next) - { - if (strncasecmp(c->name, words[start_word], c->unique_len)) - continue; - - if (strncasecmp(c->name, words[start_word], strlen(words[start_word]))) - continue; - - if ((context->mode == COMMAND_CONFIG) || (c->mode == COMMAND_ANY) || (c->mode == context->mode) ) - { - if (!c->children) - { - if (!c->handler) - { - command_print(context, "No handler for command"); - break; - } - else - { - int retval = c->handler(context, c->name, words + start_word + 1, num_words - start_word - 1); - if (retval == ERROR_COMMAND_SYNTAX_ERROR) - { - command_print(context, "Syntax error:"); - command_print_help_line(context, c, 0); - } - return retval; - } - } - else - { - if (start_word == num_words - 1) - { - command_print(context, "Incomplete command"); - break; - } - return find_and_run_command(context, c->children, words, num_words, start_word + 1); - } - } - } - - command_print(context, "Command %s not found", words[start_word]); - return ERROR_OK; -} - -static int command_run_line_inner(command_context_t *context, char *line) -{ - int nwords; - char *words[128] = {0}; - int retval; - int i; - - if ((!context) || (!line)) - return ERROR_INVALID_ARGUMENTS; - - /* skip preceding whitespace */ - while (isspace(*line)) - line++; - - /* empty line, ignore */ - if (!*line) - return ERROR_OK; - - /* ignore comments */ - if (*line && (line[0] == '#')) - return ERROR_OK; - - if (context->echo) - { - command_print(context, "%s", line); - } - - nwords = parse_line(line, words, sizeof(words) / sizeof(words[0])); - - if (nwords > 0) - retval = find_and_run_command(context, context->commands, words, nwords, 0); - else - return ERROR_INVALID_ARGUMENTS; - - for (i = 0; i < nwords; i++) - free(words[i]); - - return retval; -} - -int command_run_line(command_context_t *context, char *line) -{ - int retval=command_run_line_inner(context, line); - // we don't want any dangling callbacks! - // - // Capturing output from logging is *very* loosly modeled on C/C++ exceptions. - // the capture must be set up at function entry and - // stops when the function call returns - log_setCallback(NULL, NULL); - return retval; -} -int command_run_file(command_context_t *context, FILE *file, enum command_mode mode) -{ - int retval = ERROR_OK; - int old_command_mode; - char *buffer=malloc(4096); - if (buffer==NULL) - { - return ERROR_INVALID_ARGUMENTS; - } - - old_command_mode = context->mode; - context->mode = mode; - - while (fgets(buffer, 4096, file)) - { - char *p; - char *cmd, *end; - - /* stop processing line after a comment (#, !) or a LF, CR were encountered */ - if ((p = strpbrk(buffer, "#!\r\n"))) - *p = 0; - - /* skip over leading whitespace */ - cmd = buffer; - while (isspace(*cmd)) - cmd++; - - /* empty (all whitespace) line? */ - if (!*cmd) - continue; - - /* search the end of the current line, ignore trailing whitespace */ - for (p = end = cmd; *p; p++) - if (!isspace(*p)) - end = p; - - /* terminate end */ - *++end = 0; - if (strcasecmp(cmd, "quit") == 0) - break; - - /* run line */ - if ((retval = command_run_line_inner(context, cmd)) == ERROR_COMMAND_CLOSE_CONNECTION) - break; - } - - context->mode = old_command_mode; - - - free(buffer); - - return retval; -} - -void command_print_help_line(command_context_t* context, struct command_s *command, int indent) -{ - command_t *c; - char indents[32] = {0}; - char *help = "no help available"; - char name_buf[64]; - int i; - - for (i = 0; i < indent; i+=2) - { - indents[i*2] = ' '; - indents[i*2+1] = '-'; - } - indents[i*2] = 0; - - if (command->help) - help = command->help; - - snprintf(name_buf, 64, command->name); - strncat(name_buf, indents, 64); - command_print(context, "%20s\t%s", name_buf, help); - - if (command->children) - { - for (c = command->children; c; c = c->next) - { - command_print_help_line(context, c, indent + 1); - } - } -} - -int command_print_help(command_context_t* context, char* name, char** args, int argc) -{ - command_t *c; - - for (c = context->commands; c; c = c->next) - { - if (argc == 1) - { - if (strncasecmp(c->name, args[0], c->unique_len)) - continue; - - if (strncasecmp(c->name, args[0], strlen(args[0]))) - continue; - } - - command_print_help_line(context, c, 0); - } - - return ERROR_OK; -} - -void command_set_output_handler(command_context_t* context, int (*output_handler)(struct command_context_s *context, char* line), void *priv) -{ - context->output_handler = output_handler; - context->output_handler_priv = priv; -} - -command_context_t* copy_command_context(command_context_t* context) -{ - command_context_t* copy_context = malloc(sizeof(command_context_t)); - - *copy_context = *context; - - return copy_context; -} - -int command_done(command_context_t *context) -{ - free(context); - context = NULL; - - return ERROR_OK; -} - -command_context_t* command_init() -{ - command_context_t* context = malloc(sizeof(command_context_t)); - - context->mode = COMMAND_EXEC; - context->commands = NULL; - context->current_target = 0; - context->echo = 0; - context->output_handler = NULL; - context->output_handler_priv = NULL; - - register_command(context, NULL, "help", command_print_help, - COMMAND_EXEC, "display this help"); - - register_command(context, NULL, "sleep", handle_sleep_command, - COMMAND_ANY, "sleep for milliseconds"); - - register_command(context, NULL, "time", handle_time_command, - COMMAND_ANY, "time - execute and print time it took"); - - return context; -} - -/* sleep command sleeps for miliseconds - * this is useful in target startup scripts - */ -int handle_sleep_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - unsigned long duration = 0; - - if (argc == 1) - { - duration = strtoul(args[0], NULL, 0); - usleep(duration * 1000); - } - - return ERROR_OK; -} - -int handle_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc<1) - return ERROR_COMMAND_SYNTAX_ERROR; - - duration_t duration; - char *duration_text; - int retval; - - duration_start_measure(&duration); - - retval = find_and_run_command(cmd_ctx, cmd_ctx->commands, args, argc, 0); - - duration_stop_measure(&duration, &duration_text); - - float t=duration.duration.tv_sec; - t+=((float)duration.duration.tv_usec / 1000000.0); - command_print(cmd_ctx, "%s took %fs", args[0], t); - - free(duration_text); - - return retval; -} +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * part of this file is taken from libcli (libcli.sourceforge.net) * + * Copyright (C) David Parrish (david@dparrish.com) * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "command.h" + +#include "log.h" +#include "time_support.h" + +#include +#include +#include +#include +#include +#include + +void command_print_help_line(command_context_t* context, struct command_s *command, int indent); + +int handle_sleep_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int build_unique_lengths(command_context_t *context, command_t *commands) +{ + command_t *c, *p; + + /* iterate through all commands */ + for (c = commands; c; c = c->next) + { + /* find out how many characters are required to uniquely identify a command */ + for (c->unique_len = 1; c->unique_len <= strlen(c->name); c->unique_len++) + { + int foundmatch = 0; + + /* for every command, see if the current length is enough */ + for (p = commands; p; p = p->next) + { + /* ignore the command itself */ + if (c == p) + continue; + + /* compare commands up to the current length */ + if (strncmp(p->name, c->name, c->unique_len) == 0) + foundmatch++; + } + + /* when none of the commands matched, we've found the minimum length required */ + if (!foundmatch) + break; + } + + /* if the current command has children, build the unique lengths for them */ + if (c->children) + build_unique_lengths(context, c->children); + } + + return ERROR_OK; +} + +/* Avoid evaluating this each time we add a command. Reduces overhead from O(n^2) to O(n). + * Makes a difference on ARM7 types machines and is not observable on GHz machines. + */ +static int unique_length_dirty = 1; + +command_t* register_command(command_context_t *context, command_t *parent, char *name, int (*handler)(struct command_context_s *context, char* name, char** args, int argc), enum command_mode mode, char *help) +{ + command_t *c, *p; + unique_length_dirty = 1; + + if (!context || !name) + return NULL; + + c = malloc(sizeof(command_t)); + + c->name = strdup(name); + c->parent = parent; + c->children = NULL; + c->handler = handler; + c->mode = mode; + if (help) + c->help = strdup(help); + else + c->help = NULL; + c->unique_len = 0; + c->next = NULL; + + /* place command in tree */ + if (parent) + { + if (parent->children) + { + /* find last child */ + for (p = parent->children; p && p->next; p = p->next); + if (p) + p->next = c; + } + else + { + parent->children = c; + } + } + else + { + if (context->commands) + { + /* find last command */ + for (p = context->commands; p && p->next; p = p->next); + if (p) + p->next = c; + } + else + { + context->commands = c; + } + } + + return c; +} + +int unregister_command(command_context_t *context, char *name) +{ + unique_length_dirty = 1; + + command_t *c, *p = NULL, *c2; + + if ((!context) || (!name)) + return ERROR_INVALID_ARGUMENTS; + + /* find command */ + for (c = context->commands; c; c = c->next) + { + if (strcmp(name, c->name) == 0) + { + /* unlink command */ + if (p) + { + p->next = c->next; + } + else + { + context->commands = c->next; + } + + /* unregister children */ + if (c->children) + { + for (c2 = c->children; c2; c2 = c2->next) + { + free(c2->name); + if (c2->help) + free(c2->help); + free(c2); + } + } + + /* delete command */ + free(c->name); + if (c->help) + free(c->help); + free(c); + } + + /* remember the last command for unlinking */ + p = c; + } + + return ERROR_OK; +} + +int parse_line(char *line, char *words[], int max_words) +{ + int nwords = 0; + char *p = line; + char *word_start = line; + int inquote = 0; + + while (nwords < max_words - 1) + { + /* check if we reached + * a terminating NUL + * a matching closing quote character " or ' + * we're inside a word but not a quote, and the current character is whitespace + */ + if (!*p || *p == inquote || (word_start && !inquote && isspace(*p))) + { + /* we're inside a word or quote, and reached its end*/ + if (word_start) + { + int len; + char *word_end=p; + + /* This will handle extra whitespace within quotes */ + while (isspace(*word_start)&&(word_start0) + { + /* copy the word */ + memcpy(words[nwords] = malloc(len + 1), word_start, len); + /* add terminating NUL */ + words[nwords++][len] = 0; + } + } + /* we're done parsing the line */ + if (!*p) + break; + + /* skip over trailing quote or whitespace*/ + if (inquote || isspace(*p)) + p++; + while (isspace(*p)) + p++; + + inquote = 0; + word_start = 0; + } + else if (*p == '"' || *p == '\'') + { + /* we've reached the beginning of a quote */ + inquote = *p++; + word_start = p; + } + else + { + /* we've reached the beginning of a new word */ + if (!word_start) + word_start = p; + + /* normal character, skip */ + p++; + } + } + + return nwords; +} + +void command_print(command_context_t *context, char *format, ...) +{ + char *buffer = NULL; + int n, size = 0; + char *p; + + /* process format string */ + for (;;) + { + va_list ap; + va_start(ap, format); + if (!buffer || (n = vsnprintf(buffer, size, format, ap)) >= size) + { + /* increase buffer until it fits the whole string */ + if (!(p = realloc(buffer, size += 4096))) + { + /* gotta free up */ + if (buffer) + free(buffer); + va_end(ap); + return; + } + + buffer = p; + + va_end(ap); + continue; + } + va_end(ap); + break; + } + + /* vsnprintf failed */ + if (n < 0) + { + if (buffer) + free(buffer); + return; + } + + p = buffer; + + /* process lines in buffer */ + do { + char *next = strchr(p, '\n'); + + if (next) + *next++ = 0; + + if (context->output_handler) + context->output_handler(context, p); + + p = next; + } while (p); + + if (buffer) + free(buffer); +} + +int find_and_run_command(command_context_t *context, command_t *commands, char *words[], int num_words, int start_word) +{ + command_t *c; + + if (unique_length_dirty) + { + unique_length_dirty = 0; + /* update unique lengths */ + build_unique_lengths(context, context->commands); + } + + for (c = commands; c; c = c->next) + { + if (strncasecmp(c->name, words[start_word], c->unique_len)) + continue; + + if (strncasecmp(c->name, words[start_word], strlen(words[start_word]))) + continue; + + if ((context->mode == COMMAND_CONFIG) || (c->mode == COMMAND_ANY) || (c->mode == context->mode) ) + { + if (!c->children) + { + if (!c->handler) + { + command_print(context, "No handler for command"); + break; + } + else + { + int retval = c->handler(context, c->name, words + start_word + 1, num_words - start_word - 1); + if (retval == ERROR_COMMAND_SYNTAX_ERROR) + { + command_print(context, "Syntax error:"); + command_print_help_line(context, c, 0); + } + return retval; + } + } + else + { + if (start_word == num_words - 1) + { + command_print(context, "Incomplete command"); + break; + } + return find_and_run_command(context, c->children, words, num_words, start_word + 1); + } + } + } + + command_print(context, "Command %s not found", words[start_word]); + return ERROR_OK; +} + +int command_run_line(command_context_t *context, char *line) +{ + int nwords; + char *words[128] = {0}; + int retval; + int i; + + if ((!context) || (!line)) + return ERROR_INVALID_ARGUMENTS; + + /* skip preceding whitespace */ + while (isspace(*line)) + line++; + + /* empty line, ignore */ + if (!*line) + return ERROR_OK; + + /* ignore comments */ + if (*line && (line[0] == '#')) + return ERROR_OK; + + if (context->echo) + { + command_print(context, "%s", line); + } + + nwords = parse_line(line, words, sizeof(words) / sizeof(words[0])); + + if (nwords > 0) + retval = find_and_run_command(context, context->commands, words, nwords, 0); + else + return ERROR_INVALID_ARGUMENTS; + + for (i = 0; i < nwords; i++) + free(words[i]); + + return retval; +} + +int command_run_file(command_context_t *context, FILE *file, enum command_mode mode) +{ + int retval = ERROR_OK; + int old_command_mode; + char *buffer=malloc(4096); + if (buffer==NULL) + { + return ERROR_INVALID_ARGUMENTS; + } + + old_command_mode = context->mode; + context->mode = mode; + + while (fgets(buffer, 4096, file)) + { + char *p; + char *cmd, *end; + + /* stop processing line after a comment (#, !) or a LF, CR were encountered */ + if ((p = strpbrk(buffer, "#!\r\n"))) + *p = 0; + + /* skip over leading whitespace */ + cmd = buffer; + while (isspace(*cmd)) + cmd++; + + /* empty (all whitespace) line? */ + if (!*cmd) + continue; + + /* search the end of the current line, ignore trailing whitespace */ + for (p = end = cmd; *p; p++) + if (!isspace(*p)) + end = p; + + /* terminate end */ + *++end = 0; + if (strcasecmp(cmd, "quit") == 0) + break; + + /* run line */ + if ((retval = command_run_line(context, cmd)) == ERROR_COMMAND_CLOSE_CONNECTION) + break; + } + + context->mode = old_command_mode; + + + free(buffer); + + return retval; +} + +void command_print_help_line(command_context_t* context, struct command_s *command, int indent) +{ + command_t *c; + char indents[32] = {0}; + char *help = "no help available"; + char name_buf[64]; + int i; + + for (i = 0; i < indent; i+=2) + { + indents[i*2] = ' '; + indents[i*2+1] = '-'; + } + indents[i*2] = 0; + + if (command->help) + help = command->help; + + snprintf(name_buf, 64, command->name); + strncat(name_buf, indents, 64); + command_print(context, "%20s\t%s", name_buf, help); + + if (command->children) + { + for (c = command->children; c; c = c->next) + { + command_print_help_line(context, c, indent + 1); + } + } +} + +int command_print_help(command_context_t* context, char* name, char** args, int argc) +{ + command_t *c; + + for (c = context->commands; c; c = c->next) + { + if (argc == 1) + { + if (strncasecmp(c->name, args[0], c->unique_len)) + continue; + + if (strncasecmp(c->name, args[0], strlen(args[0]))) + continue; + } + + command_print_help_line(context, c, 0); + } + + return ERROR_OK; +} + +void command_set_output_handler(command_context_t* context, int (*output_handler)(struct command_context_s *context, char* line), void *priv) +{ + context->output_handler = output_handler; + context->output_handler_priv = priv; +} + +command_context_t* copy_command_context(command_context_t* context) +{ + command_context_t* copy_context = malloc(sizeof(command_context_t)); + + *copy_context = *context; + + return copy_context; +} + +int command_done(command_context_t *context) +{ + free(context); + context = NULL; + + return ERROR_OK; +} + +command_context_t* command_init() +{ + command_context_t* context = malloc(sizeof(command_context_t)); + + context->mode = COMMAND_EXEC; + context->commands = NULL; + context->current_target = 0; + context->echo = 0; + context->output_handler = NULL; + context->output_handler_priv = NULL; + + register_command(context, NULL, "help", command_print_help, + COMMAND_EXEC, "display this help"); + + register_command(context, NULL, "sleep", handle_sleep_command, + COMMAND_ANY, "sleep for milliseconds"); + + register_command(context, NULL, "time", handle_time_command, + COMMAND_ANY, "time - execute and print time it took"); + + return context; +} + +/* sleep command sleeps for miliseconds + * this is useful in target startup scripts + */ +int handle_sleep_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + unsigned long duration = 0; + + if (argc == 1) + { + duration = strtoul(args[0], NULL, 0); + usleep(duration * 1000); + } + + return ERROR_OK; +} + +int handle_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc<1) + return ERROR_COMMAND_SYNTAX_ERROR; + + duration_t duration; + char *duration_text; + int retval; + + duration_start_measure(&duration); + + retval = find_and_run_command(cmd_ctx, cmd_ctx->commands, args, argc, 0); + + duration_stop_measure(&duration, &duration_text); + + float t=duration.duration.tv_sec; + t+=((float)duration.duration.tv_usec / 1000000.0); + command_print(cmd_ctx, "%s took %fs", args[0], t); + + free(duration_text); + + return retval; +} -- cgit v1.2.3