49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#ifndef __APP_HF_MSG_PRS_H__
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#define __APP_HF_MSG_PRS_H__
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typedef enum {
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HF_MSG_PRS_ERR_OK = 0, // a complete message is finished
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HF_MSG_PRS_ERR_IN_PROGRESS, // message parsing is in progress
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HF_MSG_PRS_ERR_HDR_UNDETECTED, // header not detected
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HF_MSG_PRS_ERR_HDR_SYNC_FAILED, // failed to sync header
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HF_MSG_PRS_ERR_BUF_OVERFLOW, // exceeds the buffer size: HF_MSG_LEN_MAX
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} hf_msg_prs_err_t;
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typedef enum {
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HF_MSG_PRS_IDLE = 0,
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HF_MSG_PRS_HDR,
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HF_MSG_PRS_PAYL,
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} hf_msg_prs_state_t;
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typedef void (*hf_msg_callback)(char *buf, int len);
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#define HF_MSG_LEN_MAX (128)
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typedef struct {
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hf_msg_prs_state_t state;
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char buf[HF_MSG_LEN_MAX + 1];
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int cnt;
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int h_idx;
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int t_idx;
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hf_msg_callback callback;
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} hf_msg_prs_cb_t;
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void hf_msg_parser_reset_state(hf_msg_prs_cb_t *prs);
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void hf_msg_parser_register_callback(hf_msg_prs_cb_t *prs, hf_msg_callback cb);
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hf_msg_prs_err_t hf_msg_parse(char c, hf_msg_prs_cb_t *prs);
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void hf_msg_show_usage(void);
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#endif /* __APP_HF_MSG_PRS_H__*/
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