68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
//
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// Created by rick on 28-01-21.
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//
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#include <util/stream.h>
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#include <libc/string.h>
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#include <stdbool.h>
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#include <attributes.h>
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#include <tasks/task.h>
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#include <libc/libc.h>
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#include "kprint.h"
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#define MAX_HANDLERS 8
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#define STREAM_SIZE (32*1024)
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#define PRINT_BUFFER_SIZE 64
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stream_t *kprint_stream;
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kprint_handler handlers[MAX_HANDLERS] = {0};
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void kprint_register(kprint_handler handler) {
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for (int i = 0; i < MAX_HANDLERS; ++i) {
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if (handlers[i] == NULL) {
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handlers[i] = handler;
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break;
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}
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}
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// todo handle
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}
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void kprint(const char *msg) {
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stream_write(kprint_stream, (const uint8_t *) msg, strlen(msg));
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}
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void kprint_internal(const char *msg) {
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for (int i = 0; i < MAX_HANDLERS; ++i) {
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if (handlers[i] == NULL) {
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continue;
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}
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handlers[i](msg);
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}
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}
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void kprint_sync(const char *msg) {
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kprint_internal(msg);
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}
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void kprint_init() {
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kprint_stream = stream_create(STREAM_SIZE);
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}
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void noreturn kprint_task(void *_) {
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uint32_t last_read = 0;
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uint8_t data[PRINT_BUFFER_SIZE + 1] = {0};
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while (true) {
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stream_wait(kprint_stream);
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while (true) {
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last_read = stream_read(kprint_stream, data, PRINT_BUFFER_SIZE);
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if (last_read == 0) break;
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data[last_read] = 0;
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kprint_internal((const char *) data);
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};
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}
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}
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void kprint_start_task() {
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task_spawn(kprint_task, NULL);
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} |