mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-08 18:26:48 +00:00
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
#include <libc/unistd.h>
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#include <libc/stdio.h>
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#include <libc/fcntl.h>
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#include <libc/stdlib.h>
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#include <libKeyboard/keyboard.h>
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int main()
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{
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char string[] = "/333.txt";
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uint8_t buf[128] = {0};
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char tips_str[] = "The first application 'init.bin' started successfully!\n";
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put_string(tips_str, COLOR_GREEN, COLOR_BLACK);
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printf("test printf: %s size: %d\n", string, sizeof(string));
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char kb_file_path[] = "/dev/keyboard.dev";
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int kb_fd = open(kb_file_path, 0);
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printf("keyboard fd = %d\n", kb_fd);
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while (true)
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{
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int key = keyboard_analyze_keycode(kb_fd);
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if(key)
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printf("%c", (char)key);
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}
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/*
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int fd = open(string, 0);
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printf("fd=%d\n", fd);
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read(fd, buf, 128);
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put_string(buf, COLOR_ORANGE, COLOR_BLACK);
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lseek(fd, 0, SEEK_SET);
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write(fd, tips_str, sizeof(tips_str)-1);
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lseek(fd, 0, SEEK_SET);
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// 由于暂时没有实现用户态的memset，因此先手动清零
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for(int i=0;i<128;++i)
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buf[i] = 0;
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read(fd, buf, 128);
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put_string(buf, COLOR_YELLOW, COLOR_BLACK);
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close(fd);
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void *ptr[256] = {0};
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for (int k = 0; k < 2; ++k)
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{
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printf("try to malloc 256*1M=256MB\n");
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uint64_t js = 0;
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for (int i = 0; i < 256; ++i)
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{
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ptr[i] = malloc(1024 * 1024);
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js += *(uint64_t *)((uint64_t)(ptr[i]) - sizeof(uint64_t));
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// if (*(uint64_t *)((uint64_t)(ptr[i]) - sizeof(uint64_t)) > 0x4008)
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// printf("[%ld] start_addr = %#018lx, len = %#010lx\n", i, (uint64_t)(ptr[i]) - 8, *(uint64_t *)((uint64_t)(ptr[i]) - sizeof(uint64_t)));
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}
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// printf("ptr[0]->len=%lld\n", *(uint64_t *)((uint64_t)ptr[0] - sizeof(uint64_t)));
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// printf("ptr[1]->len=%lld\n", *(uint64_t *)((uint64_t)ptr[1] - sizeof(uint64_t)));
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// printf("ptr[24]->len=%lld\n", *(uint64_t*)((uint64_t)ptr[24] - sizeof(uint64_t)));
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printf("alloc done. total used: %lld bytes\n", js);
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printf("try to free...\n");
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for (int i = 0; i < 256; ++i)
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{
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free(ptr[i]);
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}
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printf("free done!\n");
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}
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*/
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// *p = 'a';
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/*
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pid_t p = fork();
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if(p == 0)
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put_string("subproc\n", COLOR_PURPLE, COLOR_BLACK);
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else put_string("parent proc\n", COLOR_ORANGE, COLOR_BLACK);
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*/
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while (1)
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;
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} |