kopia lustrzana https://github.com/espressif/esp-idf
41 wiersze
1.4 KiB
C
41 wiersze
1.4 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp_system.h"
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#include "esp_attr.h"
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typedef struct {
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esp_system_time_fn_t fn; // time provider function
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uint32_t resolution; // resolution in microseconds of the time provider
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} system_time_provider_t;
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// This is expected to be modified only on startup, so
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// it should be safe to not put locks on it.
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static system_time_provider_t s_system_time_provider;
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int64_t IRAM_ATTR esp_system_get_time(void)
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{
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return (*s_system_time_provider.fn)();
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}
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uint32_t IRAM_ATTR esp_system_get_time_resolution(void)
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{
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return s_system_time_provider.resolution;
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}
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void esp_system_set_time_provider(esp_system_time_fn_t time_fn, uint32_t resolution)
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{
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s_system_time_provider.fn = time_fn;
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s_system_time_provider.resolution = resolution;
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} |