Add JSON/read interface
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Patrick Pelissier committed
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ad9bee0eec
commit
4accdc994d
1 file changed
+111
-2
+111
-2
@@ -80,6 +80,7 @@ static inline m_serial_return_code_t m_serial_json_write_tuple_start(m_serial_
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}
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static inline m_serial_return_code_t m_serial_json_write_tuple_id(m_serial_write_t serial, const char *const field_name[], const int max, const int index){
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(void) max;
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FILE *f = (FILE *)serial->data[0];
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int n = fprintf(f, "%c\"%s\":", index == 0 ? ' ' : ',', field_name[index]);
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return n > 0 ? M_SERIAL_OK_CONTINUE : M_SERIAL_FAIL;
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@@ -113,13 +114,121 @@ static const m_serial_write_interface_t m_serial_write_json_interface = {
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m_serial_json_write_variant_end
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};
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static inline void m_serial_write_json_init(m_serial_write_t serial, FILE *f)
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static inline void m_serial_json_write_init(m_serial_write_t serial, FILE *f)
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{
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serial->interface = &m_serial_write_json_interface;
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serial->data[0] = (void*) f;
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}
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static inline void m_serial_write_json_clear(m_serial_write_t serial)
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static inline void m_serial_json_write_clear(m_serial_write_t serial)
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{
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(void) serial; // Nothing to do
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}
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static inline int
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m_serial_json_read_skip (FILE *f)
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{
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int c;
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do {
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c = fgetc(f);
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} while (isspace(c));
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return c;
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}
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static inline m_serial_return_code_t
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m_serial_json_read_boolean(m_serial_read_t serial, bool *b){
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FILE *f = (FILE*) serial->data[0];
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int c = m_serial_json_read_skip(f);
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if (c == 't') {
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*b = true;
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c = fgetc(f);
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if (c != 'r') return M_SERIAL_FAIL;
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c = fgetc(f);
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if (c != 'u') return M_SERIAL_FAIL;
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c = fgetc(f);
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if (c != 'e') return M_SERIAL_FAIL;
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return M_SERIAL_OK_DONE;
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} else if (c == 'f') {
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*b = false;
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c = fgetc(f);
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if (c != 'a') return M_SERIAL_FAIL;
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c = fgetc(f);
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if (c != 'l') return M_SERIAL_FAIL;
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c = fgetc(f);
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if (c != 's') return M_SERIAL_FAIL;
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c = fgetc(f);
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if (c != 'e') return M_SERIAL_FAIL;
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return M_SERIAL_OK_DONE;
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} else {
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return M_SERIAL_FAIL;
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}
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}
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static inline m_serial_return_code_t
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m_serial_json_read_integer(m_serial_read_t serial, long long *i){
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FILE *f = (FILE*) serial->data[0];
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int c = m_serial_json_read_skip(f);
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ungetc(c, f);
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return fscanf(f, "%lld", i) == 1 ? M_SERIAL_OK_DONE : M_SERIAL_FAIL;
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}
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static inline m_serial_return_code_t
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m_serial_json_read_float(m_serial_read_t serial, long double *r){
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FILE *f = (FILE*) serial->data[0];
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int c = m_serial_json_read_skip(f);
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ungetc(c, f);
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return fscanf(f, "%Lf", r) == 1 ? M_SERIAL_OK_DONE : M_SERIAL_FAIL;
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}
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static inline m_serial_return_code_t m_serial_json_read_string(m_serial_read_t serial, struct string_s *s){ return M_SERIAL_FAIL; }
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static inline m_serial_return_code_t m_serial_json_read_array_start(m_serial_read_t serial, size_t *num){ return M_SERIAL_FAIL; }
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static inline m_serial_return_code_t m_serial_json_read_array_next(m_serial_read_t serial){ return M_SERIAL_FAIL; } // Return M_SERIAL_OK_DONE when array is finished parsing.
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static inline m_serial_return_code_t m_serial_json_read_map_start(m_serial_read_t serial, size_t *num){ return M_SERIAL_FAIL; }
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static inline m_serial_return_code_t m_serial_json_read_map_value(m_serial_read_t serial){ return M_SERIAL_FAIL; }
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static inline m_serial_return_code_t m_serial_json_read_map_next(m_serial_read_t serial){ return M_SERIAL_FAIL; } // Return M_SERIAL_OK_DONE when map is finished parsing.
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static inline m_serial_return_code_t
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m_serial_json_read_tuple_start(m_serial_read_t serial){
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FILE *f = (FILE*) serial->data[0];
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int c = m_serial_json_read_skip(f);
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return (c != '{') ? M_SERIAL_FAIL : M_SERIAL_OK_CONTINUE;
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}
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static inline m_serial_return_code_t
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m_serial_json_read_tuple_id(m_serial_read_t serial, const char *const field_name [], const int max, int *id){
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FILE *f = (FILE*) serial->data[0];
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int c = m_serial_json_read_skip(f);
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if (c == '}') return M_SERIAL_OK_DONE;
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if (c != '"') return M_SERIAL_FAIL;
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}
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static inline m_serial_return_code_t m_serial_json_read_variant_start(m_serial_read_t serial, const char *const field_name[], const int max, int*id){ return M_SERIAL_FAIL; }
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static inline m_serial_return_code_t m_serial_json_read_variant_end(m_serial_read_t serial){ return M_SERIAL_FAIL; }
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static const m_serial_read_interface_t m_serial_json_read_interface = {
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m_serial_json_read_boolean,
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m_serial_json_read_integer,
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m_serial_json_read_float,
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m_serial_json_read_string,
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m_serial_json_read_array_start,
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m_serial_json_read_array_next,
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m_serial_json_read_map_start,
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m_serial_json_read_map_value,
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m_serial_json_read_map_next,
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m_serial_json_read_tuple_start,
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m_serial_json_read_tuple_id,
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m_serial_json_read_variant_start,
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m_serial_json_read_variant_end
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};
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static inline void m_serial_json_read_init(m_serial_read_t serial, FILE *f)
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{
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serial->interface = &m_serial_json_read_interface;
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serial->data[0] = (void*) f;
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}
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static inline void m_serial_json_read_clear(m_serial_read_t serial)
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{
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(void) serial; // Nothing to do
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}
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