ARM mbed M2X API Client: The ARM mbed client library is used to send/receive data to/from AT&T's M2X service from mbed LPC1768 microcontrollers.
Dependents: m2x-demo-all M2X_MTS_ACCEL_DEMO M2X_MTS_Accel M2X_K64F_ACCEL ... more
Diff: LocationParseFunctions.h
- Revision:
- 22:4d895e732765
- Parent:
- 21:6878944d2ce2
--- a/LocationParseFunctions.h Sat Jan 02 02:29:43 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,100 +0,0 @@ -#ifndef LocationParseFunctions_h -#define LocationParseFunctions_h - -// Data structures and functions used to parse locations - -#define LOCATION_BUF_LEN 20 - -typedef struct { - uint16_t state; - char name_str[LOCATION_BUF_LEN + 1]; - double latitude; - double longitude; - double elevation; - char timestamp_str[LOCATION_BUF_LEN + 1]; - int index; - - location_read_callback callback; - void* context; -} location_parsing_context_state; - -#define WAITING_NAME 0x1 -#define WAITING_LATITUDE 0x2 -#define WAITING_LONGITUDE 0x4 -#define WAITING_ELEVATION 0x8 -#define WAITING_TIMESTAMP 0x10 - -#define GOT_NAME 0x20 -#define GOT_LATITUDE 0x40 -#define GOT_LONGITUDE 0x80 -#define GOT_ELEVATION 0x100 -#define GOT_TIMESTAMP 0x200 - -#define GOT_LOCATION (GOT_NAME | GOT_LATITUDE | GOT_LONGITUDE | GOT_ELEVATION | GOT_TIMESTAMP) -#define TEST_GOT_LOCATION(state_) (((state_) & GOT_LOCATION) == GOT_LOCATION) - -#define TEST_IS_NAME(state_) (((state_) & (WAITING_NAME | GOT_NAME)) == WAITING_NAME) -#define TEST_IS_LATITUDE(state_) (((state_) & (WAITING_LATITUDE | GOT_LATITUDE)) \ - == WAITING_LATITUDE) -#define TEST_IS_LONGITUDE(state_) (((state_) & (WAITING_LONGITUDE | GOT_LONGITUDE)) \ - == WAITING_LONGITUDE) -#define TEST_IS_ELEVATION(state_) (((state_) & (WAITING_ELEVATION | GOT_ELEVATION)) \ - == WAITING_ELEVATION) -#define TEST_IS_TIMESTAMP(state_) (((state_) & (WAITING_TIMESTAMP | GOT_TIMESTAMP)) \ - == WAITING_TIMESTAMP) - -static void on_location_key_found(jsonlite_callback_context* context, - jsonlite_token* token) { - location_parsing_context_state* state = - (location_parsing_context_state*) context->client_state; - if (strncmp((const char*) token->start, "waypoints", 9) == 0) { - // only parses those locations in waypoints, skip the outer one - state->state = 0; - } else if (strncmp((const char*) token->start, "name", 4) == 0) { - state->state |= WAITING_NAME; - } else if (strncmp((const char*) token->start, "latitude", 8) == 0) { - state->state |= WAITING_LATITUDE; - } else if (strncmp((const char*) token->start, "longitude", 9) == 0) { - state->state |= WAITING_LONGITUDE; - } else if (strncmp((const char*) token->start, "elevation", 9) == 0) { - state->state |= WAITING_ELEVATION; - } else if (strncmp((const char*) token->start, "timestamp", 9) == 0) { - state->state |= WAITING_TIMESTAMP; - } -} - -static void on_location_string_found(jsonlite_callback_context* context, - jsonlite_token* token) { - location_parsing_context_state* state = - (location_parsing_context_state*) context->client_state; - - if (TEST_IS_NAME(state->state)) { - strncpy(state->name_str, (const char*) token->start, - MIN(token->end - token->start, LOCATION_BUF_LEN)); - state->name_str[MIN(token->end - token->start, LOCATION_BUF_LEN)] = '\0'; - state->state |= GOT_NAME; - } else if (TEST_IS_LATITUDE(state->state)) { - state->latitude = atof((const char*) token->start); - state->state |= GOT_LATITUDE; - } else if (TEST_IS_LONGITUDE(state->state)) { - state->longitude = atof((const char*) token->start); - state->state |= GOT_LONGITUDE; - } else if (TEST_IS_ELEVATION(state->state)) { - state->elevation = atof((const char*) token->start); - state->state |= GOT_ELEVATION; - } else if (TEST_IS_TIMESTAMP(state->state)) { - strncpy(state->timestamp_str, (const char*) token->start, - MIN(token->end - token->start, LOCATION_BUF_LEN)); - state->timestamp_str[MIN(token->end - token->start, LOCATION_BUF_LEN)] = '\0'; - state->state |= GOT_TIMESTAMP; - } - - if (TEST_GOT_LOCATION(state->state)) { - state->callback(state->name_str, state->latitude, state->longitude, - state->elevation, state->timestamp_str, state->index++, - state->context); - state->state = 0; - } -} - -#endif /* LocationParseFunctions_h */