diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/klibc/kerrno.c | 169 | ||||
| -rw-r--r-- | src/klibc/kstdio.c | 157 | ||||
| -rw-r--r-- | src/klibc/kstring.c | 5 |
3 files changed, 171 insertions, 160 deletions
diff --git a/src/klibc/kerrno.c b/src/klibc/kerrno.c new file mode 100644 index 0000000000..4d83b133cb --- /dev/null +++ b/src/klibc/kerrno.c @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2006-2024, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2024-09-22 Meco Man the first version + */ + +#include <rtthread.h> + +#define DBG_TAG "kernel.errno" +#ifdef RT_DEBUG_DEVICE +#define DBG_LVL DBG_LOG +#else +#define DBG_LVL DBG_WARNING +#endif /* defined (RT_DEBUG_DEVICE) */ +#include <rtdbg.h> + +/** + * @brief A global variable used to store the error code. + * + * This volatile static integer is used to store the most recent error code globally. + * Its volatile nature ensures that every read operation fetches the most current value, + * providing real-time error status across different parts of the program. + */ +static volatile int __rt_errno; + +/** + * @struct _errno_str_t + * @brief Structure for mapping error codes to corresponding error strings. + * + * This structure is used to create a mapping that associates an rt_err_t type error code + * with a corresponding error description string. + */ +struct _errno_str_t +{ + rt_err_t error; /**< Error code of type rt_err_t, representing different kinds of errors. */ + const char *str; /**< Pointer to the error description string. */ +}; + +/** + * @brief An array containing mappings of error codes to their corresponding error strings. + * + * This array uses the _errno_str_t structure to define several error codes and their + * corresponding error description strings. These mappings can be used at runtime + * to provide more readable error information. + */ +static struct _errno_str_t rt_errno_strs[] = +{ + {RT_EOK , "OK "}, /**< Operation successful. */ + {RT_ERROR , "ERROR "}, /**< General error. */ + {RT_ETIMEOUT, "ETIMOUT"}, /**< Operation timed out. */ + {RT_EFULL , "ERSFULL"}, /**< Resource is full. */ + {RT_EEMPTY , "ERSEPTY"}, /**< Resource is empty. */ + {RT_ENOMEM , "ENOMEM "}, /**< Not enough memory. */ + {RT_ENOSYS , "ENOSYS "}, /**< Function not implemented. */ + {RT_EBUSY , "EBUSY "}, /**< Resource is busy. */ + {RT_EIO , "EIO "}, /**< Input/output error. */ + {RT_EINTR , "EINTRPT"}, /**< Interrupted system call. */ + {RT_EINVAL , "EINVAL "}, /**< Invalid argument. */ + {RT_ENOENT , "ENOENT "}, /**< No such file or directory. */ + {RT_ENOSPC , "ENOSPC "}, /**< No space left on device. */ + {RT_EPERM , "EPERM "}, /**< Operation not permitted. */ + {RT_ETRAP , "ETRAP "}, /**< Trap error. */ +}; + +/** + * @brief This function return a pointer to a string that contains the + * message of error. + * + * @param error the errorno code + * @return a point to error message string + */ +const char *rt_strerror(rt_err_t error) +{ + int i = 0; + + if (error < 0) + error = -error; + + for (i = 0; i < sizeof(rt_errno_strs) / sizeof(rt_errno_strs[0]); i++) + { + if (rt_errno_strs[i].error == error) + return rt_errno_strs[i].str; + } + + return "EUNKNOW"; +} +RTM_EXPORT(rt_strerror); + +/** + * @brief This function gets the global errno for the current thread. + * + * @return errno + */ +rt_err_t rt_get_errno(void) +{ + rt_thread_t tid = RT_NULL; + + if (rt_interrupt_get_nest() != 0) + { + /* it's in interrupt context */ + return __rt_errno; + } + + tid = rt_thread_self(); + if (tid == RT_NULL) + { + return __rt_errno; + } + + return tid->error; +} +RTM_EXPORT(rt_get_errno); + +/** + * @brief This function sets the global errno for the current thread. + * + * @param error is the errno shall be set. + */ +void rt_set_errno(rt_err_t error) +{ + rt_thread_t tid = RT_NULL; + + if (rt_interrupt_get_nest() != 0) + { + /* it's in interrupt context */ + __rt_errno = error; + + return; + } + + tid = rt_thread_self(); + if (tid == RT_NULL) + { + __rt_errno = error; + + return; + } + + tid->error = error; +} +RTM_EXPORT(rt_set_errno); + +/** + * @brief This function returns the address of the current thread errno. + * + * @return The errno address. + */ +int *_rt_errno(void) +{ + rt_thread_t tid = RT_NULL; + + if (rt_interrupt_get_nest() != 0) + { + return (int *)&__rt_errno; + } + + tid = rt_thread_self(); + if (tid != RT_NULL) + { + return (int *) & (tid->error); + } + + return (int *)&__rt_errno; +} +RTM_EXPORT(_rt_errno); diff --git a/src/klibc/kstdio.c b/src/klibc/kstdio.c index 851b1008dd..4bcd5d460a 100644 --- a/src/klibc/kstdio.c +++ b/src/klibc/kstdio.c @@ -8,10 +8,7 @@ * 2024-03-10 Meco Man the first version */ -#include <rtdef.h> -#include <rtcompiler.h> -#include <rtklibc.h> -#include <rtm.h> +#include <rtthread.h> #define DBG_TAG "kernel.stdio" #ifdef RT_DEBUG_DEVICE @@ -684,155 +681,3 @@ int rt_sprintf(char *buf, const char *format, ...) return n; } RTM_EXPORT(rt_sprintf); - -/* errno functions */ - -/** - * @brief A global variable used to store the error code. - * - * This volatile static integer is used to store the most recent error code globally. - * Its volatile nature ensures that every read operation fetches the most current value, - * providing real-time error status across different parts of the program. - */ -static volatile int __rt_errno; - -/** - * @struct _errno_str_t - * @brief Structure for mapping error codes to corresponding error strings. - * - * This structure is used to create a mapping that associates an rt_err_t type error code - * with a corresponding error description string. - */ -struct _errno_str_t -{ - rt_err_t error; /**< Error code of type rt_err_t, representing different kinds of errors. */ - const char *str; /**< Pointer to the error description string. */ -}; - -/** - * @brief An array containing mappings of error codes to their corresponding error strings. - * - * This array uses the _errno_str_t structure to define several error codes and their - * corresponding error description strings. These mappings can be used at runtime - * to provide more readable error information. - */ -static struct _errno_str_t rt_errno_strs[] = -{ - {RT_EOK , "OK "}, /**< Operation successful. */ - {RT_ERROR , "ERROR "}, /**< General error. */ - {RT_ETIMEOUT, "ETIMOUT"}, /**< Operation timed out. */ - {RT_EFULL , "ERSFULL"}, /**< Resource is full. */ - {RT_EEMPTY , "ERSEPTY"}, /**< Resource is empty. */ - {RT_ENOMEM , "ENOMEM "}, /**< Not enough memory. */ - {RT_ENOSYS , "ENOSYS "}, /**< Function not implemented. */ - {RT_EBUSY , "EBUSY "}, /**< Resource is busy. */ - {RT_EIO , "EIO "}, /**< Input/output error. */ - {RT_EINTR , "EINTRPT"}, /**< Interrupted system call. */ - {RT_EINVAL , "EINVAL "}, /**< Invalid argument. */ - {RT_ENOENT , "ENOENT "}, /**< No such file or directory. */ - {RT_ENOSPC , "ENOSPC "}, /**< No space left on device. */ - {RT_EPERM , "EPERM "}, /**< Operation not permitted. */ - {RT_ETRAP , "ETRAP "}, /**< Trap error. */ -}; - -/** - * @brief This function return a pointer to a string that contains the - * message of error. - * - * @param error the errorno code - * @return a point to error message string - */ -const char *rt_strerror(rt_err_t error) -{ - int i = 0; - - if (error < 0) - error = -error; - - for (i = 0; i < sizeof(rt_errno_strs) / sizeof(rt_errno_strs[0]); i++) - { - if (rt_errno_strs[i].error == error) - return rt_errno_strs[i].str; - } - - return "EUNKNOW"; -} -RTM_EXPORT(rt_strerror); - -/** - * @brief This function gets the global errno for the current thread. - * - * @return errno - */ -rt_err_t rt_get_errno(void) -{ - rt_thread_t tid = RT_NULL; - - if (rt_interrupt_get_nest() != 0) - { - /* it's in interrupt context */ - return __rt_errno; - } - - tid = rt_thread_self(); - if (tid == RT_NULL) - { - return __rt_errno; - } - - return tid->error; -} -RTM_EXPORT(rt_get_errno); - -/** - * @brief This function sets the global errno for the current thread. - * - * @param error is the errno shall be set. - */ -void rt_set_errno(rt_err_t error) -{ - rt_thread_t tid = RT_NULL; - - if (rt_interrupt_get_nest() != 0) - { - /* it's in interrupt context */ - __rt_errno = error; - - return; - } - - tid = rt_thread_self(); - if (tid == RT_NULL) - { - __rt_errno = error; - - return; - } - - tid->error = error; -} -RTM_EXPORT(rt_set_errno); - -/** - * @brief This function returns the address of the current thread errno. - * - * @return The errno address. - */ -int *_rt_errno(void) -{ - rt_thread_t tid = RT_NULL; - - if (rt_interrupt_get_nest() != 0) - { - return (int *)&__rt_errno; - } - - tid = rt_thread_self(); - if (tid != RT_NULL) - { - return (int *) & (tid->error); - } - - return (int *)&__rt_errno; -} -RTM_EXPORT(_rt_errno); diff --git a/src/klibc/kstring.c b/src/klibc/kstring.c index b3fb3b0029..562c3f7ccd 100644 --- a/src/klibc/kstring.c +++ b/src/klibc/kstring.c @@ -8,10 +8,7 @@ * 2024-03-10 Meco Man the first version */ -#include <rtdef.h> -#include <rtcompiler.h> -#include <rtklibc.h> -#include <rtm.h> +#include <rtthread.h> #ifdef RT_KLIBC_USING_STDLIB #include <string.h> #endif /* RT_KLIBC_USING_STDLIB */ |