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https://github.com/zephyrproject-rtos/zephyr
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1e968a1976
This patch increases the amount of slab memory per item for the shell history to match the maximum command input buffer size plus the accounting information for the dnode list item. Signed-off-by: Andy Gross <andy.gross@linaro.org>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* Copyright (c) 2018 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef SHELL_HISTORY_H__
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#define SHELL_HISTORY_H__
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#include <zephyr.h>
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#include <misc/util.h>
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#include <misc/dlist.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct shell_history {
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struct k_mem_slab *mem_slab;
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sys_dlist_t list;
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sys_dnode_t *current;
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};
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struct shell_history_item {
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sys_dnode_t dnode;
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u16_t len;
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char data[];
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};
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#if CONFIG_SHELL_HISTORY
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#define SHELL_HISTORY_DEFINE(_name, block_size, block_count) \
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\
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K_MEM_SLAB_DEFINE(_name##_history_memslab, \
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ROUND_UP(block_size + sizeof(struct shell_history_item), \
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sizeof(void *)), block_count, 4); \
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static struct shell_history _name##_history = { \
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.mem_slab = &_name##_history_memslab \
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}
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#define SHELL_HISTORY_PTR(_name) (&_name##_history)
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#else /* CONFIG_SHELL_HISTORY */
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#define SHELL_HISTORY_DEFINE(_name, block_size, block_count) /*empty*/
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#define SHELL_HISTORY_PTR(_name) NULL
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#endif
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void shell_history_init(struct shell_history *history);
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void shell_history_purge(struct shell_history *history);
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void shell_history_mode_exit(struct shell_history *history);
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/* returns true if remains in history mode.*/
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bool shell_history_get(struct shell_history *history, bool up,
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u8_t *dst, u16_t *len);
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void shell_history_put(struct shell_history *history, u8_t *line, size_t len);
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static inline bool shell_history_active(struct shell_history *history)
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{
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return (history->current) ? true : false;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* SHELL_HISTORY_H__ */
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