Other useful kernel service
[RT-Thread Kernel API]

Functions
void	rt_snprintf (char *buf, rt_size_t size, const char *fmt,...)
void	rt_kprintf (const char *fmt,...)
void *	rt_memset (void *src, int c, rt_ubase_t n)
void *	rt_memcpy (void *dest, const void *src, rt_ubase_t n)
rt_ubase_t	rt_strncmp (const char *cs, const char *ct, rt_ubase_t count)
rt_ubase_t	rt_strlen (const char *src)
char *	rt_strstr (const char *str1, const char *str2)
rt_int32_t	rt_sscanf (const char *buf, const char *fmt,...)
char *	rt_strncpy (char *dest, const char *src, rt_ubase_t n)
void *	rt_memmove (void *dest, const void *src, rt_ubase_t n)
rt_int32_t	rt_memcmp (const void *cs, const void *ct, rt_ubase_t count)
rt_uint32_t	rt_strcasecmp (const char *a, const char *b)
void	rt_show_version (void)

---

Function Documentation

void rt_kprintf	(	const char *	fmt,
			...
	)

This function will print a formatted string on system console

Parameters:

fmt

the format

rt_int32_t rt_memcmp	(	const void *	cs,
		const void *	ct,
		rt_ubase_t	count
	)

memcmp - Compare two areas of memory

Parameters:

	cs,:	One area of memory
	ct,:	Another area of memory
	count,:	The size of the area.

void * rt_memcpy	(	void *	dst,
		const void *	src,
		rt_ubase_t	count
	)

This function will copy memory content from source address to destination address.

Parameters:

	dst	the address of destination memory
	src	the address of source memory
	count	the copied length

Returns:

the address of destination memory

void * rt_memmove	(	void *	dest,
		const void *	src,
		rt_ubase_t	n
	)

This function will move memory content from source address to destination address.

Parameters:

	dest	the address of destination memory
	src	the address of source memory
	n	the copied length

Returns:

the address of destination memory

void * rt_memset	(	void *	s,
		int	c,
		rt_ubase_t	count
	)

This function will set the content of memory to specified value

Parameters:

	s	the address of source memory
	c	the value shall be set in content
	count	the copied length

Returns:

the address of source memory

void rt_show_version

(

void

)

This function will show the version of rt-thread rtos

void rt_snprintf	(	char *	buf,
		rt_size_t	size,
		const char *	fmt,
			...
	)

This function will fill a formatted string to buffer

Parameters:

	buf	the buffer to save formatted string
	size	the size of buffer
	fmt	the format

rt_int32_t rt_sscanf	(	const char *	buf,
		const char *	fmt,
			...
	)

sscanf - Unformat a buffer into a list of arguments

Parameters:

	buf	input buffer
	fmt	formatting of buffer

rt_uint32_t rt_strcasecmp	(	const char *	a,
		const char *	b
	)

This function will compare two strings while ignoring differences in case

Parameters:

	a	the string to be compared
	b	the string to be compared

Returns:

the result

rt_ubase_t rt_strlen

(

const char *

s

)

This function will return the length of a string, which terminate will null character.

Parameters:

s

the string

Returns:

the length of string

rt_ubase_t rt_strncmp	(	const char *	cs,
		const char *	ct,
		rt_ubase_t	count
	)

This function will compare two strings with specified maximum length

Parameters:

	cs	the string to be compared
	ct	the string to be compared
	count	the maximum compare length

Returns:

the result

char * rt_strncpy	(	char *	dest,
		const char *	src,
		rt_ubase_t	n
	)

This function will copy string no more than n bytes.

Parameters:

	dest	the string to copy
	src	the string to be copied
	n	the maximum copied length

Returns:

the result

char * rt_strstr	(	const char *	s1,
		const char *	s2
	)

This function will return the first occurrence of a string.

Parameters:

	s1	the source string
	s2	the find string

Returns:

the first occurrence of a s2 in s1, or RT_NULL if no found.