ת»»Ϊgb2312±àÂë
This commit is contained in:
@@ -1,7 +1,7 @@
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/*
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C语言库函数实现
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C<EFBFBD><EFBFBD><EFBFBD>Կ⺯<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>
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*/
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@@ -21,19 +21,19 @@
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// 常规文件
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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#define FILE_TYPE_FILE 0
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// 设备文件
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// <EFBFBD>豸<EFBFBD>ļ<EFBFBD>
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#define FILE_TYPE_DEVICE 1
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// 内存文件
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// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>
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#define FILE_TYPE_MEM 2
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// 定义内存文件大小
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>С
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#define MEM_FILE_SIZE (100*1024)
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// 定义flash中的文件
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>flash<EFBFBD>е<EFBFBD><EFBFBD>ļ<EFBFBD>
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typedef struct
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{
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u32 addr;
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@@ -42,7 +42,7 @@ typedef struct
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}libc_flash_file;
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// 定义常规文件
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// <EFBFBD><EFBFBD><EFBFBD>峣<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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typedef struct
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{
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libc_flash_file flash;
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@@ -55,7 +55,7 @@ typedef struct
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// 定义内存文件
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>
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typedef struct
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{
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uint8_t data[MEM_FILE_SIZE];
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@@ -65,7 +65,7 @@ typedef struct
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// 定义文件结构体
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>ṹ<EFBFBD><EFBFBD>
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struct __FILE
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{
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int type;
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@@ -74,7 +74,7 @@ struct __FILE
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libc_mem_file *mem;
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};
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// 寻找指定名称的设备
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// Ѱ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD>豸
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extern const unsigned int Load$$libc_dev$$Base;
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extern const unsigned int Load$$libc_dev$$Limit;
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const libc_device_file *libc_find_dev(const char *name)
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@@ -93,7 +93,7 @@ const libc_device_file *libc_find_dev(const char *name)
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// 基本输入输出流
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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FILE __stdin={
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.type=FILE_TYPE_DEVICE,
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.dev=0,
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@@ -126,7 +126,7 @@ static int libc_init(void)
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// 删除文件，返回0成功
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// ɾ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ɹ<EFBFBD>
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int remove(const char * filename)
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{
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if (f_unlink(filename)==FR_OK)
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@@ -137,7 +137,7 @@ int remove(const char * filename)
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//重命名，返回0成功
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//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ɹ<EFBFBD>
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int rename(const char * old_, const char * new_)
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{
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if (f_rename (old_,new_)==FR_OK)
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@@ -147,7 +147,7 @@ int rename(const char * old_, const char * new_)
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}
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// 在指定流上创建临时文件
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// <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ļ<EFBFBD>
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static FILE *tmpfile_s(FILE * stream)
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{
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FILE *file=stream;
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@@ -160,21 +160,21 @@ static FILE *tmpfile_s(FILE * stream)
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return file;
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}
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// 创建临时文件，在文件关闭时自动删除
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>ر<EFBFBD>ʱ<EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><EFBFBD>
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FILE *tmpfile(void)
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{
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return tmpfile_s(NULL);
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}
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// 返回一个和现有文件名不同的字符串，这里始终返回 NULL
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD> NULL
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char *tmpnam(char * s)
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{
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return NULL;
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}
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// 关闭文件，返回0成功
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// <EFBFBD>ر<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ɹ<EFBFBD>
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int fclose(FILE * stream)
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{
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FILE * file=stream;
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@@ -200,12 +200,12 @@ int fclose(FILE * stream)
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}
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if((file!=stdin)&&(file!=stdout)&&(file!=stderr))
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{
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// 基本输入输出流使用的是静态内存
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><EFBFBD>Ǿ<EFBFBD>̬<EFBFBD>ڴ<EFBFBD>
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free(file);
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}
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else
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{
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// 设置为初始流设备
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>豸
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// freopen("uart5","r+",file);
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}
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return 0;
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@@ -214,7 +214,7 @@ int fclose(FILE * stream)
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}
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// 刷新，返回0成功
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// ˢ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ɹ<EFBFBD>
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int fflush(FILE * stream)
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{
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return 0;
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@@ -227,7 +227,7 @@ int ferror(FILE * stream)
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// 由字符得到打开类型
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// <EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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static BYTE f_get_mode(const char *mode)
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{
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typedef struct{
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@@ -262,7 +262,7 @@ static BYTE f_get_mode(const char *mode)
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// 在指定流上打开文件
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// <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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static FILE *fopen_s(const char * filename,const char * mode,FILE *stream)
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{
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FILE *file=stream;
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@@ -271,7 +271,7 @@ static FILE *fopen_s(const char * filename,const char * mode,FILE *stream)
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file_struct_private *file_p=NULL;
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u8 ret=0;
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// 首先查找同名设备
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// <EFBFBD><EFBFBD><EFBFBD>Ȳ<EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>豸
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file->type=FILE_TYPE_DEVICE;
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file->dev=libc_find_dev(filename);
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if(file->dev!=NULL)
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@@ -317,26 +317,26 @@ static FILE *fopen_s(const char * filename,const char * mode,FILE *stream)
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}
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// 打开文件
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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FILE *fopen(const char * filename,const char * mode)
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{
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return fopen_s(filename,mode,NULL);
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}
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// 把新的文件名和流关联，输出新的流
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// 如果filename==NULL，则创建一个内存文件
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// <EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD><EFBFBD>
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>filename==NULL<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>
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FILE *freopen(const char * filename, const char * mode, FILE * stream)
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{
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FILE * file=stream;
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if(file==NULL) return NULL;
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// 在本例中只允许修改基本输入输出流
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// <EFBFBD>ڱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if((file!=stdin)&&(file!=stdout)&&(file!=stderr)) return NULL;
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// 首先尝试关闭与流关联的文件
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// <EFBFBD><EFBFBD><EFBFBD>ȳ<EFBFBD><EFBFBD>Թر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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fclose(stream);
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// 把新文件关联到流
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// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if(filename!=NULL)
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return fopen_s(filename,mode,stream);
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else
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@@ -344,7 +344,7 @@ FILE *freopen(const char * filename, const char * mode, FILE * stream)
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}
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// 设置缓冲区，返回0成功
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// <EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ɹ<EFBFBD>
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int setvbuf(FILE * stream, char * buf, int mode, size_t size)
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{
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return 0;
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@@ -360,7 +360,7 @@ void setbuf(FILE * stream,char * buf)
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// 设备文件获取一个字符
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// <EFBFBD>豸<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fgetc_dev(FILE * stream)
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{
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int c=EOF;
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@@ -376,7 +376,7 @@ static int fgetc_dev(FILE * stream)
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return c;
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}
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// 内存文件获取一个字符
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// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fgetc_mem(FILE * stream)
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{
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int c=EOF;
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@@ -393,7 +393,7 @@ static int fgetc_mem(FILE * stream)
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return c;
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}
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// 普通文件获取一个字符
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// <EFBFBD><EFBFBD>ͨ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡһ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fgetc_fil(FILE * stream)
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{
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int c=EOF;
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@@ -410,7 +410,7 @@ static int (*const g_getc_funs[3])(FILE *)={
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};
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// 获取文件流中的一个字符
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// <EFBFBD><EFBFBD>ȡ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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int fgetc(FILE * stream)
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{
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int c=EOF;
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@@ -425,7 +425,7 @@ int fgetc(FILE * stream)
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// 设备文件写入一个字符
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// <EFBFBD>豸<EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fputc_dev(int c,FILE * stream)
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{
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const libc_device_file *dev=stream->dev;
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@@ -440,7 +440,7 @@ static int fputc_dev(int c,FILE * stream)
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return EOF;
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}
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// 内存文件写入一个字符
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// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fputc_mem(int c,FILE * stream)
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{
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libc_mem_file *mem=stream->mem;
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@@ -456,7 +456,7 @@ static int fputc_mem(int c,FILE * stream)
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return EOF;
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}
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// 普通文件写入一个字符
|
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// <EFBFBD><EFBFBD>ͨ<EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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static int fputc_fil(int c,FILE * stream)
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{
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uint8_t d=c;
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@@ -473,7 +473,7 @@ static int (*const g_putc_funs[3])(int,FILE *)={
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};
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// 写入一个字符
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// д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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int fputc(int c, FILE * stream)
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{
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if(stream)
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@@ -484,7 +484,7 @@ int fputc(int c, FILE * stream)
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}
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// 普通文件读取
|
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// <EFBFBD><EFBFBD>ͨ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡ
|
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static size_t fread_fil(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
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{
|
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file_struct_private * file=stream->ptr;
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@@ -509,27 +509,27 @@ static size_t fread_fil(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
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return 0;
|
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}
|
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|
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// 设备文件读取
|
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// <EFBFBD>豸<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡ
|
||||
static size_t fread_dev(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
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{
|
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const libc_device_file *dev=stream->dev;
|
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|
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if(dev)
|
||||
{
|
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// 暂时不支持设备文件读取
|
||||
// <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡ
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 内存文件读取
|
||||
// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡ
|
||||
static size_t fread_mem(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
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libc_mem_file *mem=stream->mem;
|
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|
||||
if(mem)
|
||||
{
|
||||
// 暂时不支持内存文件读取
|
||||
// <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ȡ
|
||||
}
|
||||
|
||||
return 0;
|
||||
@@ -542,7 +542,7 @@ static size_t (*const g_read_funs[3])(void *,size_t,size_t,FILE *)={
|
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fread_mem,
|
||||
};
|
||||
|
||||
// 读取文件
|
||||
// <EFBFBD><EFBFBD>ȡ<EFBFBD>ļ<EFBFBD>
|
||||
size_t fread(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
||||
if(stream)
|
||||
@@ -557,7 +557,7 @@ size_t fread(void * ptr, size_t size, size_t nmemb, FILE * stream)
|
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|
||||
|
||||
|
||||
// 设备文件写入
|
||||
// <EFBFBD>豸<EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>
|
||||
static size_t fwrite_dev(const void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
||||
const libc_device_file *dev=stream->dev;
|
||||
@@ -573,20 +573,20 @@ static size_t fwrite_dev(const void * ptr, size_t size, size_t nmemb, FILE * str
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 内存文件写入
|
||||
// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>
|
||||
static size_t fwrite_mem(const void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
||||
libc_mem_file *mem=stream->mem;
|
||||
|
||||
if(mem)
|
||||
{
|
||||
// 暂时不支持内存文件写入
|
||||
// <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 普通文件写入
|
||||
// <EFBFBD><EFBFBD>ͨ<EFBFBD>ļ<EFBFBD>д<EFBFBD><EFBFBD>
|
||||
static size_t fwrite_fil(const void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
||||
file_struct_private * file=stream->ptr;
|
||||
@@ -600,7 +600,7 @@ static size_t fwrite_fil(const void * ptr, size_t size, size_t nmemb, FILE * str
|
||||
}
|
||||
else
|
||||
{
|
||||
//flash暂时不支持写入
|
||||
//flash<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
@@ -615,7 +615,7 @@ static size_t (*const g_write_funs[3])(const void *,size_t,size_t,FILE *)={
|
||||
};
|
||||
|
||||
|
||||
// 写入文件
|
||||
// д<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
|
||||
size_t fwrite(const void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
{
|
||||
if(stream)
|
||||
@@ -626,13 +626,13 @@ size_t fwrite(const void * ptr, size_t size, size_t nmemb, FILE * stream)
|
||||
}
|
||||
|
||||
|
||||
// 获取文件位置，成功返回0
|
||||
// <EFBFBD><EFBFBD>ȡ<EFBFBD>ļ<EFBFBD>λ<EFBFBD>ã<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
int fgetpos(FILE * stream, fpos_t *pos)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
// 设置文件位置，成功返回0
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>λ<EFBFBD>ã<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
int fsetpos(FILE * stream, const fpos_t * pos)
|
||||
{
|
||||
return 1;
|
||||
@@ -643,7 +643,7 @@ int fsetpos(FILE * stream, const fpos_t * pos)
|
||||
|
||||
|
||||
|
||||
// 普通文件设置文件偏移，成功返回0
|
||||
// <EFBFBD><EFBFBD>ͨ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ƫ<EFBFBD>ƣ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
{
|
||||
file_struct_private * file=stream->ptr;
|
||||
@@ -651,7 +651,7 @@ static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
{
|
||||
if (file->flash.size==0)
|
||||
{
|
||||
//文件开头
|
||||
//<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ͷ
|
||||
if (SEEK_SET==whence)
|
||||
{
|
||||
if (f_lseek(&file->file,offset)==FR_OK)
|
||||
@@ -659,14 +659,14 @@ static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
}
|
||||
else if (SEEK_END==whence)
|
||||
{
|
||||
//这时offset为负数
|
||||
//<EFBFBD><EFBFBD>ʱoffsetΪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
offset=file->file_info.fsize+offset;
|
||||
if (f_lseek(&file->file,offset)==FR_OK)
|
||||
return 0;
|
||||
}
|
||||
else if (SEEK_CUR==whence)
|
||||
{
|
||||
//这时offset可正可负
|
||||
//<EFBFBD><EFBFBD>ʱoffset<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD>
|
||||
long int pos=f_tell(&file->file);
|
||||
offset=pos+offset;
|
||||
if (f_lseek(&file->file,offset)==FR_OK)
|
||||
@@ -675,7 +675,7 @@ static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
}
|
||||
else
|
||||
{
|
||||
//文件开头
|
||||
//<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ͷ
|
||||
if (SEEK_SET==whence)
|
||||
{
|
||||
if(offset>=0&&offset<=file->flash.size)
|
||||
@@ -695,7 +695,7 @@ static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
}
|
||||
else if (SEEK_CUR==whence)
|
||||
{
|
||||
//这时offset可正可负
|
||||
//<EFBFBD><EFBFBD>ʱoffset<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD>
|
||||
long int pos=file->flash.ptr;
|
||||
offset=pos+offset;
|
||||
if(offset>=0&&offset<=file->flash.size)
|
||||
@@ -709,7 +709,7 @@ static int fseek_fil(FILE * stream, long int offset, int whence)
|
||||
return -1;
|
||||
}
|
||||
|
||||
// 设备文件设置文件偏移，成功返回0
|
||||
// <EFBFBD>豸<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ƫ<EFBFBD>ƣ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
static int fseek_dev(FILE * stream, long int offset, int whence)
|
||||
{
|
||||
const libc_device_file *dev=stream->dev;
|
||||
@@ -721,14 +721,14 @@ static int fseek_dev(FILE * stream, long int offset, int whence)
|
||||
return -1;
|
||||
}
|
||||
|
||||
// 内存文件设置文件偏移，成功返回0
|
||||
// <EFBFBD>ڴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ƫ<EFBFBD>ƣ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
static int fseek_mem(FILE * stream, long int offset, int whence)
|
||||
{
|
||||
libc_mem_file *mem=stream->mem;
|
||||
|
||||
if(mem)
|
||||
{
|
||||
//文件开头
|
||||
//<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ͷ
|
||||
if (SEEK_SET==whence)
|
||||
{
|
||||
if(offset>=0&&offset<=mem->size)
|
||||
@@ -748,7 +748,7 @@ static int fseek_mem(FILE * stream, long int offset, int whence)
|
||||
}
|
||||
else if (SEEK_CUR==whence)
|
||||
{
|
||||
//这时offset可正可负
|
||||
//<EFBFBD><EFBFBD>ʱoffset<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD>
|
||||
long int pos=mem->ptr;
|
||||
offset=pos+offset;
|
||||
if(offset>=0&&offset<=mem->size)
|
||||
@@ -768,7 +768,7 @@ static int (*const g_seek_funs[3])(FILE *,long int,int)={
|
||||
fseek_mem,
|
||||
};
|
||||
|
||||
// 设置文件偏移，成功返回0
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ƫ<EFBFBD>ƣ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
int fseek(FILE * stream, long int offset, int whence)
|
||||
{
|
||||
if(stream)
|
||||
@@ -779,7 +779,7 @@ int fseek(FILE * stream, long int offset, int whence)
|
||||
}
|
||||
|
||||
|
||||
// 返回文件指针偏移
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>
|
||||
static long int ftell_fil(FILE * stream)
|
||||
{
|
||||
file_struct_private * file=stream->ptr;
|
||||
@@ -797,7 +797,7 @@ static long int ftell_fil(FILE * stream)
|
||||
return -1;
|
||||
}
|
||||
|
||||
// 返回文件指针偏移
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>
|
||||
static long int ftell_dev(FILE * stream)
|
||||
{
|
||||
const libc_device_file *dev=stream->dev;
|
||||
@@ -805,7 +805,7 @@ static long int ftell_dev(FILE * stream)
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 返回文件指针偏移
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>
|
||||
static long int ftell_mem(FILE * stream)
|
||||
{
|
||||
libc_mem_file *mem=stream->mem;
|
||||
@@ -822,7 +822,7 @@ static long int (*const g_tell_funs[3])(FILE *)={
|
||||
};
|
||||
|
||||
|
||||
// 返回文件指针偏移
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>
|
||||
long int ftell(FILE * stream)
|
||||
{
|
||||
if(stream)
|
||||
@@ -833,14 +833,14 @@ long int ftell(FILE * stream)
|
||||
}
|
||||
|
||||
|
||||
// 把文件指针设置为文件开头
|
||||
// <EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ͷ
|
||||
void rewind(FILE * stream)
|
||||
{
|
||||
fseek(stream, 0L, SEEK_SET);
|
||||
}
|
||||
|
||||
|
||||
// 测试文件结束，未结束返回0，已结束返回1
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD>ѽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
|
||||
static int feof_fil(FILE * stream)
|
||||
{
|
||||
file_struct_private * file=stream->ptr;
|
||||
@@ -858,7 +858,7 @@ static int feof_fil(FILE * stream)
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
// 测试文件结束，未结束返回0，已结束返回1
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD>ѽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
|
||||
static int feof_dev(FILE * stream)
|
||||
{
|
||||
const libc_device_file *dev=stream->dev;
|
||||
@@ -886,7 +886,7 @@ static int (*const g_eof_funs[3])(FILE *)={
|
||||
};
|
||||
|
||||
|
||||
// 测试文件结束，未结束返回0，已结束返回1
|
||||
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD>ѽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
|
||||
int feof(FILE * stream)
|
||||
{
|
||||
if(stream)
|
||||
@@ -896,7 +896,7 @@ int feof(FILE * stream)
|
||||
return 1;
|
||||
}
|
||||
|
||||
// 断言，c语言标准库使用这个函数
|
||||
// <EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>c<EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
void __aeabi_assert(const char * e, const char *_file_, int _line_)
|
||||
{
|
||||
printf("%s:%s,at %d\r\n",e,_file_,_line_);
|
||||
|
||||
Reference in New Issue
Block a user