* 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. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
+
#ifndef COMMAND_H
#define COMMAND_H
-#include "types.h"
-
-/* Integrate the JIM TCL interpretor into the command processing. */
-#if BUILD_ECOSBOARD
-#include <stdio.h>
-#include <stdarg.h>
-/* Jim is provied by eCos */
-#include <cyg/jimtcl/jim.h>
-#else
-#include "jim.h"
-#endif
+#include <jim-nvp.h>
/* To achieve C99 printf compatibility in MinGW, gnu_printf should be
* used for __attribute__((format( ... ))), with GCC v4.4 or later
#define PRINTF_ATTRIBUTE_FORMAT printf
#endif
-enum command_mode
-{
+enum command_mode {
COMMAND_EXEC,
COMMAND_CONFIG,
COMMAND_ANY,
struct command_context;
-/// The type signature for command context's output handler.
+/** The type signature for command context's output handler. */
typedef int (*command_output_handler_t)(struct command_context *context,
- const char* line);
+ const char *line);
-struct command_context
-{
+struct command_context {
+ Jim_Interp *interp;
enum command_mode mode;
struct command *commands;
int current_target;
- /* Execute a command.
- *
- * If the command fails, it *MUST* return a value != ERROR_OK
- * (many commands break this rule, patches welcome!)
- *
- * This is *especially* important for commands such as writing
- * to flash or verifying memory. The reason is that those commands
- * can be used by programs to determine if the operation succeded
- * or not. If the operation failed, then a program can try
- * an alternative approach.
- *
- * Returning ERROR_COMMAND_SYNTAX_ERROR will have the effect of
- * printing out the syntax of the command.
- */
command_output_handler_t output_handler;
void *output_handler_priv;
};
+struct command;
+
/**
* When run_command is called, a new instance will be created on the
* stack, filled with the proper values, and passed by reference to the
*/
struct command_invocation {
struct command_context *ctx;
+ struct command *current;
const char *name;
unsigned argc;
const char **argv;
* set provided by command.c. This macro uses C99 magic to allow
* defining all such derivative types using this macro.
*/
-#define __COMMAND_HANDLER(name, extra...) \
- int name(struct command_invocation *cmd, ##extra)
+#define __COMMAND_HANDLER(name, extra ...) \
+ int name(struct command_invocation *cmd, ## extra)
/**
* Use this to macro to call a command helper (or a nested handler).
* helper function, or care must be taken to avoid redefining the same
* variables in intervening scope(s) by accident.
*/
-#define CALL_COMMAND_HANDLER(name, extra...) \
- name(cmd, ##extra)
+#define CALL_COMMAND_HANDLER(name, extra ...) \
+ name(cmd, ## extra)
/**
* Always use this macro to define new command handler functions.
* they be can be used by other macros (e.g. COMMAND_PARSE_NUMBER).
* All command handler functions must be defined as static in scope.
*/
-#define COMMAND_HANDLER(name) static __COMMAND_HANDLER(name)
+#define COMMAND_HANDLER(name) \
+ static __COMMAND_HANDLER(name)
/**
* Similar to COMMAND_HANDLER, except some parameters are expected.
* A helper is globally-scoped because it may be shared between several
* source files (e.g. the s3c24xx device command helper).
*/
-#define COMMAND_HELPER(name, extra...) __COMMAND_HANDLER(name, extra)
+#define COMMAND_HELPER(name, extra ...) __COMMAND_HANDLER(name, extra)
/**
* Use this macro to access the context of the command being handled,
* rather than accessing the variable directly. It may be moved.
*/
-#define CMD_CTX cmd->ctx
+#define CMD_CTX (cmd->ctx)
/**
* Use this macro to access the number of arguments for the command being
* handled, rather than accessing the variable directly. It may be moved.
*/
-#define CMD_ARGC cmd->argc
+#define CMD_ARGC (cmd->argc)
/**
* Use this macro to access the arguments for the command being handled,
* rather than accessing the variable directly. It may be moved.
*/
-#define CMD_ARGV cmd->argv
+#define CMD_ARGV (cmd->argv)
/**
* Use this macro to access the name of the command being handled,
* rather than accessing the variable directly. It may be moved.
*/
-#define CMD_NAME cmd->name
-
+#define CMD_NAME (cmd->name)
+/**
+ * Use this macro to access the current command being handled,
+ * rather than accessing the variable directly. It may be moved.
+ */
+#define CMD_CURRENT (cmd->current)
+/**
+ * Use this macro to access the invoked command handler's data pointer,
+ * rather than accessing the variable directly. It may be moved.
+ */
+#define CMD_DATA (CMD_CURRENT->jim_handler_data)
-/// The type signature for commands' handler functions.
+/**
+ * The type signature for command handling functions. They are
+ * usually registered as part of command_registration, providing
+ * a high-level means for executing a command.
+ *
+ * If the command fails, it *MUST* return a value != ERROR_OK
+ * (many commands break this rule, patches welcome!)
+ *
+ * This is *especially* important for commands such as writing
+ * to flash or verifying memory. The reason is that those commands
+ * can be used by programs to determine if the operation succeded
+ * or not. If the operation failed, then a program can try
+ * an alternative approach.
+ *
+ * Returning ERROR_COMMAND_SYNTAX_ERROR will have the effect of
+ * printing out the syntax of the command.
+ */
typedef __COMMAND_HANDLER((*command_handler_t));
-struct command
-{
- char *name;
+struct command {
+ const char *name;
const char *help;
+ const char *usage;
struct command *parent;
struct command *children;
command_handler_t handler;
+ Jim_CmdProc jim_handler;
+ void *jim_handler_data;
enum command_mode mode;
struct command *next;
};
struct command_registration {
const char *name;
command_handler_t handler;
+ Jim_CmdProc jim_handler;
+ void *jim_handler_data;
enum command_mode mode;
const char *help;
+ /** a string listing the options and arguments, required or optional */
+ const char *usage;
+
+ /**
+ * If non-NULL, the commands in @c chain will be registered in
+ * the same context and scope of this registration record.
+ * This allows modules to inherit lists commands from other
+ * modules.
+ */
+ const struct command_registration *chain;
};
+/** Use this as the last entry in an array of command_registration records. */
+#define COMMAND_REGISTRATION_DONE { .name = NULL, .chain = NULL }
+
/**
* Register a command @c handler that can be called from scripts during
* the execution @c mode specified.
* command parameters.
* @returns The new command, if successful; otherwise, NULL.
*/
-struct command* register_command(struct command_context *cmd_ctx,
- struct command *parent, const struct command_registration *rec);
-
-#define COMMAND_REGISTER(_cmd_ctx, _parent, _name, _handler, _mode, _help) \
- ({ \
- struct command_registration cr = { \
- .name = _name, \
- .handler = _handler, \
- .mode = _mode, \
- .help = _help, \
- }; \
- register_command(_cmd_ctx, _parent, &cr); \
- })
+struct command *register_command(struct command_context *cmd_ctx,
+ struct command *parent, const struct command_registration *rec);
+
+/**
+ * Register one or more commands in the specified context, as children
+ * of @c parent (or top-level commends, if NULL). In a registration's
+ * record contains a non-NULL @c chain member and name is NULL, the
+ * commands on the chain will be registered in the same context.
+ * Otherwise, the chained commands are added as children of the command.
+ *
+ * @param cmd_ctx The command_context in which to register the command.
+ * @param parent Register this command as a child of this, or NULL to
+ * register a top-level command.
+ * @param cmds Pointer to an array of command_registration records that
+ * contains the desired command parameters. The last record must have
+ * NULL for all fields.
+ * @returns ERROR_OK on success; ERROR_FAIL if any registration fails.
+ */
+int register_commands(struct command_context *cmd_ctx, struct command *parent,
+ const struct command_registration *cmds);
+
/**
* Unregisters command @c name from the given context, @c cmd_ctx.
int unregister_all_commands(struct command_context *cmd_ctx,
struct command *parent);
-void command_set_output_handler(struct command_context* context,
+struct command *command_find_in_context(struct command_context *cmd_ctx,
+ const char *name);
+struct command *command_find_in_parent(struct command *parent,
+ const char *name);
+
+/**
+ * Update the private command data field for a command and all descendents.
+ * This is used when creating a new heirarchy of commands that depends
+ * on obtaining a dynamically created context. The value will be available
+ * in command handlers by using the CMD_DATA macro.
+ * @param c The command (group) whose data pointer(s) will be updated.
+ * @param p The new data pointer to use for the command or its descendents.
+ */
+void command_set_handler_data(struct command *c, void *p);
+
+void command_set_output_handler(struct command_context *context,
command_output_handler_t output_handler, void *priv);
-struct command_context* copy_command_context(struct command_context* context);
int command_context_mode(struct command_context *context, enum command_mode mode);
+/* Return the current command context associated with the Jim interpreter or
+ * alternatively the global default command interpreter
+ */
+struct command_context *current_command_context(Jim_Interp *interp);
+/**
+ * Creates a new command context using the startup TCL provided and
+ * the existing Jim interpreter, if any. If interp == NULL, then command_init
+ * creates a command interpreter.
+ */
+struct command_context *command_init(const char *startup_tcl, Jim_Interp *interp);
+/**
+ * Creates a copy of an existing command context. This does not create
+ * a deep copy of the command list, so modifications in one context will
+ * affect all shared contexts. The caller must track reference counting
+ * and ensure the commands are freed before destroying the last instance.
+ * @param cmd_ctx The command_context that will be copied.
+ * @returns A new command_context with the same state as the original.
+ */
+struct command_context *copy_command_context(struct command_context *cmd_ctx);
/**
- * Creates a new command context using the startup TCL provided.
+ * Frees the resources associated with a command context. The commands
+ * are not removed, so unregister_all_commands() must be called first.
+ * @param context The command_context that will be destroyed.
*/
-struct command_context* command_init(const char *startup_tcl);
-int command_done(struct command_context *context);
+void command_done(struct command_context *context);
void command_print(struct command_context *context, const char *format, ...)
- __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
+__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
void command_print_sameline(struct command_context *context, const char *format, ...)
- __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
+__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
int command_run_line(struct command_context *context, char *line);
int command_run_linef(struct command_context *context, const char *format, ...)
- __attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
+__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 2, 3)));
void command_output_text(struct command_context *context, const char *data);
-void process_jim_events(void);
-
-#define ERROR_COMMAND_CLOSE_CONNECTION (-600)
-#define ERROR_COMMAND_SYNTAX_ERROR (-601)
-#define ERROR_COMMAND_NOTFOUND (-602)
-#define ERROR_COMMAND_ARGUMENT_INVALID (-603)
-#define ERROR_COMMAND_ARGUMENT_OVERFLOW (-604)
-#define ERROR_COMMAND_ARGUMENT_UNDERFLOW (-605)
-
-extern Jim_Interp *interp;
+void process_jim_events(struct command_context *cmd_ctx);
-void register_jim(struct command_context *context, const char *name,
- Jim_CmdProc cmd, const char *help);
+#define ERROR_COMMAND_CLOSE_CONNECTION (-600)
+#define ERROR_COMMAND_SYNTAX_ERROR (-601)
+#define ERROR_COMMAND_NOTFOUND (-602)
+#define ERROR_COMMAND_ARGUMENT_INVALID (-603)
+#define ERROR_COMMAND_ARGUMENT_OVERFLOW (-604)
+#define ERROR_COMMAND_ARGUMENT_UNDERFLOW (-605)
int parse_ulong(const char *str, unsigned long *ul);
int parse_ullong(const char *str, unsigned long long *ul);
int parse_llong(const char *str, long long *ul);
#define DECLARE_PARSE_WRAPPER(name, type) \
- int parse##name(const char *str, type *ul)
+ int parse ## name(const char *str, type * ul)
DECLARE_PARSE_WRAPPER(_uint, unsigned);
+DECLARE_PARSE_WRAPPER(_u64, uint64_t);
DECLARE_PARSE_WRAPPER(_u32, uint32_t);
DECLARE_PARSE_WRAPPER(_u16, uint16_t);
DECLARE_PARSE_WRAPPER(_u8, uint8_t);
*/
#define COMMAND_PARSE_NUMBER(type, in, out) \
do { \
- int retval = parse_##type(in, &(out)); \
- if (ERROR_OK != retval) { \
+ int retval_macro_tmp = parse_ ## type(in, &(out)); \
+ if (ERROR_OK != retval_macro_tmp) { \
command_print(CMD_CTX, stringify(out) \
" option value ('%s') is not valid", in); \
- return retval; \
+ return retval_macro_tmp; \
} \
} while (0)
#define COMMAND_PARSE_BOOL(in, out, on, off) \
do { \
bool value; \
- int retval = command_parse_bool_arg(in, &value); \
- if (ERROR_OK != retval) { \
+ int retval_macro_tmp = command_parse_bool_arg(in, &value); \
+ if (ERROR_OK != retval_macro_tmp) { \
command_print(CMD_CTX, stringify(out) \
" option value ('%s') is not valid", in); \
command_print(CMD_CTX, " choices are '%s' or '%s'", \
on, off); \
- return retval; \
+ return retval_macro_tmp; \
} \
out = value; \
} while (0)
int command_parse_bool_arg(const char *in, bool *out);
COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label);
-/// parses an on/off command argument
+/** parses an on/off command argument */
#define COMMAND_PARSE_ON_OFF(in, out) \
- COMMAND_PARSE_BOOL(in, out, "on", "off")
-/// parses an enable/disable command argument
+ COMMAND_PARSE_BOOL(in, out, "on", "off")
+/** parses an enable/disable command argument */
#define COMMAND_PARSE_ENABLE(in, out) \
- COMMAND_PARSE_BOOL(in, out, "enable", "disable")
+ COMMAND_PARSE_BOOL(in, out, "enable", "disable")
void script_debug(Jim_Interp *interp, const char *cmd,
- unsigned argc, Jim_Obj *const *argv);
+ unsigned argc, Jim_Obj * const *argv);
-#endif /* COMMAND_H */
+#endif /* COMMAND_H */
Code Review / openocd.git / blobdiff