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Optimsed code

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Following note in review by @igrr 👍
This commit is contained in:
Krzysztof 2016-11-10 07:37:16 +01:00
parent f7cb6fc969
commit 3aca537157
1 changed files with 2 additions and 10 deletions
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12
examples/08_nvs_rw_blob/main/nvs_rw_blob.c
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@ -74,22 +74,14 @@ esp_err_t save_run_time(void)
if (err != ESP_OK && err != ESP_ERR_NVS_NOT_FOUND) return err;
// Read previously saved blob if available
uint32_t* run_time;
uint32_t* run_time = malloc(required_size + sizeof(uint32_t));
if (required_size > 0) {
run_time = malloc(required_size);
// read previously saved blob
err = nvs_get_blob(my_handle, "run_time", run_time, &required_size);
if (err != ESP_OK) return err;
// add extra space for the new value
required_size += sizeof(uint32_t);
run_time = realloc(run_time, required_size);
} else {
// nothing saved jet - just allocate space for the first value to save
required_size = sizeof(uint32_t);
run_time = malloc(required_size);
}
// Write value including previously saved blob if available
required_size += sizeof(uint32_t);
run_time[required_size / sizeof(uint32_t) - 1] = xTaskGetTickCount() * portTICK_PERIOD_MS;
err = nvs_set_blob(my_handle, "run_time", run_time, required_size);
if (err != ESP_OK) return err;