rt-thread/components/finsh/cmd.c

/*
 * File      : cmd.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006, RT-Thread Development Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rt-thread.org/license/LICENSE
 *
 * Change Logs:
 * Date           Author       Notes
 * 2006-04-30     Bernard      first implementation
 * 2006-05-04     Bernard      add list_thread,
 *                                 list_sem,
 *                                 list_timer
 * 2006-05-20     Bernard      add list_mutex,
 *                                 list_mailbox,
 *                                 list_msgqueue,
 *                                 list_event,
 *                                 list_fevent,
 *                                 list_mempool
 * 2006-06-03     Bernard      display stack information in list_thread
 * 2006-08-10     Bernard      change version to invoke rt_show_version
 * 2008-09-10     Bernard      update the list function for finsh syscall
 *                                 list and sysvar list
 * 2009-05-30     Bernard      add list_device
 * 2010-04-21     yi.qiu       add list_module
 * 2012-04-29     goprife      improve the command line auto-complete feature.
 */

#include <rtthread.h>
#include "finsh.h"

rt_inline unsigned int rt_list_len(const rt_list_t *l)
{
    unsigned int len = 0;
    const rt_list_t *p = l;
    while( p->next != l )
    {
        p = p->next;
        len++;
    }
    return len;
}

long hello(void)
{
    rt_kprintf("Hello RT-Thread!\n");

    return 0;
}
FINSH_FUNCTION_EXPORT(hello, say hello world);

extern void rt_show_version(void);
long version(void)
{
    rt_show_version();

    return 0;
}
FINSH_FUNCTION_EXPORT(version, show RT-Thread version information);

#define rt_list_entry(node, type, member) \
    ((type *)((char *)(node) - (unsigned long)(&((type *)0)->member)))
extern struct rt_object_information rt_object_container[];

static long _list_thread(struct rt_list_node* list)
{
    struct rt_thread *thread;
    struct rt_list_node *node;
    rt_uint8_t* ptr;

    rt_kprintf(" thread  pri  status      sp     stack size max used   left tick  error\n");
    rt_kprintf("-------- ---- ------- ---------- ---------- ---------- ---------- ---\n");
    for (node = list->next; node != list; node = node->next)
    {
        thread = rt_list_entry(node, struct rt_thread, list);
        rt_kprintf("%-8.*s 0x%02x", RT_NAME_MAX, thread->name, thread->current_priority);

        if (thread->stat == RT_THREAD_READY)        rt_kprintf(" ready  ");
        else if (thread->stat == RT_THREAD_SUSPEND) rt_kprintf(" suspend");
        else if (thread->stat == RT_THREAD_INIT)    rt_kprintf(" init   ");
        else if (thread->stat == RT_THREAD_CLOSE)   rt_kprintf(" close  ");

        ptr = (rt_uint8_t*)thread->stack_addr;
        while (*ptr == '#')ptr ++;

        rt_kprintf(" 0x%08x 0x%08x 0x%08x 0x%08x %03d\n",
            thread->stack_size + ((rt_uint32_t)thread->stack_addr - (rt_uint32_t)thread->sp),
            thread->stack_size,
            thread->stack_size - ((rt_uint32_t) ptr - (rt_uint32_t)thread->stack_addr),
            thread->remaining_tick,
            thread->error);

    }
    return 0;
}

long list_thread(void)
{
    return _list_thread(&rt_object_container[RT_Object_Class_Thread].object_list);
}
FINSH_FUNCTION_EXPORT(list_thread, list thread);

static void show_wait_queue(struct rt_list_node* list)
{
    struct rt_thread *thread;
    struct rt_list_node *node;

    for (node = list->next; node != list; node = node->next)
    {
        thread = rt_list_entry(node, struct rt_thread, tlist);
        rt_kprintf("%s", thread->name);
        if (node->next != list) rt_kprintf("/");
    }
}

#ifdef RT_USING_SEMAPHORE
static long _list_sem(struct rt_list_node *list)
{
    struct rt_semaphore *sem;
    struct rt_list_node *node;

    rt_kprintf("semaphore v   suspend thread\n");
    rt_kprintf("--------  --- --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        sem = (struct rt_semaphore*)(rt_list_entry(node, struct rt_object, list));
        if( !rt_list_isempty(&sem->parent.suspend_thread) )
        {
            rt_kprintf("%-8.*s  %03d %d:", RT_NAME_MAX, sem->parent.parent.name, sem->value,
                    rt_list_len(&sem->parent.suspend_thread) );
            show_wait_queue(&(sem->parent.suspend_thread));
            rt_kprintf("\n");
        }
        else
        {
            rt_kprintf("%-8.*s  %03d %d\n", RT_NAME_MAX, sem->parent.parent.name, sem->value,
                    rt_list_len(&sem->parent.suspend_thread));
        }
    }

    return 0;
}

long list_sem(void)
{
    return _list_sem(&rt_object_container[RT_Object_Class_Semaphore].object_list);
}
FINSH_FUNCTION_EXPORT(list_sem, list semaphone in system)
#endif

#ifdef RT_USING_EVENT
static long _list_event(struct rt_list_node *list)
{
    struct rt_event *e;
    struct rt_list_node *node;

    rt_kprintf("event    set        suspend thread\n");
    rt_kprintf("-------- ---------- --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        e = (struct rt_event*)(rt_list_entry(node, struct rt_object, list));
        if( !rt_list_isempty(&e->parent.suspend_thread) )
        {
            rt_kprintf("%-8.*s  0x%08x %03d:", RT_NAME_MAX, e->parent.parent.name, 
                e->set, rt_list_len(&e->parent.suspend_thread));
            show_wait_queue(&(e->parent.suspend_thread));
            rt_kprintf("\n");
        }
        else
        {
            rt_kprintf("%-8.*s  0x%08x 0\n", RT_NAME_MAX, e->parent.parent.name, e->set);
        }
    }

    return 0;
}

long list_event(void)
{
    return _list_event(&rt_object_container[RT_Object_Class_Event].object_list);
}
FINSH_FUNCTION_EXPORT(list_event, list event in system)
#endif

#ifdef RT_USING_MUTEX
static long _list_mutex(struct rt_list_node *list)
{
    struct rt_mutex *m;
    struct rt_list_node *node;

    rt_kprintf("mutex    owner    hold suspend thread\n");
    rt_kprintf("-------- -------- ---- --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        m = (struct rt_mutex*)(rt_list_entry(node, struct rt_object, list));
        rt_kprintf("%-8.*s %-8.*s %04d %d\n", RT_NAME_MAX, m->parent.parent.name,
                RT_NAME_MAX, m->owner->name, m->hold, rt_list_len(&m->parent.suspend_thread));
    }

    return 0;
}

long list_mutex(void)
{
    return _list_mutex(&rt_object_container[RT_Object_Class_Mutex].object_list);
}
FINSH_FUNCTION_EXPORT(list_mutex, list mutex in system)
#endif

#ifdef RT_USING_MAILBOX
static long _list_mailbox(struct rt_list_node *list)
{
    struct rt_mailbox *m;
    struct rt_list_node *node;

    rt_kprintf("mailbox  entry size suspend thread\n");
    rt_kprintf("-------- ----  ---- --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        m = (struct rt_mailbox*)(rt_list_entry(node, struct rt_object, list));
        if( !rt_list_isempty(&m->parent.suspend_thread) )
        {
            rt_kprintf("%-8.*s %04d  %04d %d:", RT_NAME_MAX, m->parent.parent.name, 
                m->entry, m->size, rt_list_len(&m->parent.suspend_thread));
            show_wait_queue(&(m->parent.suspend_thread));
            rt_kprintf("\n");
        }
        else
        {
            rt_kprintf("%-8.*s %04d  %04d %d\n", RT_NAME_MAX, m->parent.parent.name, 
                m->entry, m->size, rt_list_len(&m->parent.suspend_thread));
        }
    }

    return 0;
}

long list_mailbox(void)
{
    return _list_mailbox(&rt_object_container[RT_Object_Class_MailBox].object_list);
}
FINSH_FUNCTION_EXPORT(list_mailbox, list mail box in system)
#endif

#ifdef RT_USING_MESSAGEQUEUE
static long _list_msgqueue(struct rt_list_node *list)
{
    struct rt_messagequeue *m;
    struct rt_list_node *node;

    rt_kprintf("msgqueue entry suspend thread\n");
    rt_kprintf("-------- ----  --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        m = (struct rt_messagequeue*)(rt_list_entry(node, struct rt_object, list));
        if( !rt_list_isempty(&m->parent.suspend_thread) )
        {
            rt_kprintf("%-8.*s %04d  %d:", RT_NAME_MAX, m->parent.parent.name, 
                m->entry, rt_list_len(&m->parent.suspend_thread));
            show_wait_queue(&(m->parent.suspend_thread));
            rt_kprintf("\n");
        }
        else
        {
            rt_kprintf("%-8.*s %04d  %d\n", RT_NAME_MAX, m->parent.parent.name, 
                m->entry, rt_list_len(&m->parent.suspend_thread));
        }
    }

    return 0;
}

long list_msgqueue(void)
{
    return _list_msgqueue(&rt_object_container[RT_Object_Class_MessageQueue].object_list);
}
FINSH_FUNCTION_EXPORT(list_msgqueue, list message queue in system)
#endif

#ifdef RT_USING_MEMPOOL
static long _list_mempool(struct rt_list_node *list)
{
    struct rt_mempool *mp;
    struct rt_list_node *node;

    rt_kprintf("mempool  block total free suspend thread\n");
    rt_kprintf("-------- ----  ----  ---- --------------\n");
    for (node = list->next; node != list; node = node->next)
    {
        mp = (struct rt_mempool*)rt_list_entry(node, struct rt_object, list);
        if (mp->suspend_thread_count > 0)
        {
            rt_kprintf("%-8.*s %04d  %04d  %04d %d:", RT_NAME_MAX, mp->parent.name,
                mp->block_size, mp->block_total_count, mp->block_free_count,
                mp->suspend_thread_count);
            show_wait_queue(&(mp->suspend_thread));
            rt_kprintf("\n");           
        }
        else
        {
            rt_kprintf("%-8.*s %04d  %04d  %04d %d\n", RT_NAME_MAX, mp->parent.name,
                mp->block_size, mp->block_total_count, mp->block_free_count,
                mp->suspend_thread_count);
        }
    }

    return 0;
}

long list_mempool(void)
{
    return _list_mempool(&rt_object_container[RT_Object_Class_MemPool].object_list);
}
FINSH_FUNCTION_EXPORT(list_mempool, list memory pool in system)
#endif

static long _list_timer(struct rt_list_node *list)
{
    struct rt_timer *timer;
    struct rt_list_node *node;

    rt_kprintf("timer    periodic   timeout    flag\n");
    rt_kprintf("-------- ---------- ---------- -----------\n");
    for (node = list->next; node != list; node = node->next)
    {
        timer = (struct rt_timer*)(rt_list_entry(node, struct rt_object, list));
        rt_kprintf("%-8.*s 0x%08x 0x%08x ", RT_NAME_MAX, timer->parent.name, timer->init_tick, timer->timeout_tick);
        if (timer->parent.flag & RT_TIMER_FLAG_ACTIVATED) rt_kprintf("activated\n");
        else rt_kprintf("deactivated\n");
    }

    rt_kprintf("current tick:0x%08x\n", rt_tick_get());

    return 0;
}

long list_timer(void)
{
    return _list_timer(&rt_object_container[RT_Object_Class_Timer].object_list);
}
FINSH_FUNCTION_EXPORT(list_timer, list timer in system)

#ifdef RT_USING_DEVICE
static long _list_device(struct rt_list_node *list)
{
    struct rt_device *device;
    struct rt_list_node *node;
    const char *device_type_str[] =
    {
        "Character Device",
        "Block Device",
        "Network Interface",
        "MTD Device",
        "CAN Device",
        "RTC",
        "Sound Device",
        "Graphic Device",
        "I2C Device",
        "USB Slave Device",
        "USB Host Bus",
        "SPI Bus",
        "SPI Device",
        "SDIO Bus",
        "Unknown"
    };

    rt_kprintf("device    type      \n");
    rt_kprintf("-------- ---------- \n");
    for (node = list->next; node != list; node = node->next)
    {
        device = (struct rt_device*)(rt_list_entry(node, struct rt_object, list));
        rt_kprintf("%-8.*s %-8s \n", RT_NAME_MAX, device->parent.name,
            (device->type <= RT_Device_Class_Unknown)?
            device_type_str[device->type]:device_type_str[RT_Device_Class_Unknown]);
    }

    return 0;
}

long list_device(void)
{
    return _list_device(&rt_object_container[RT_Object_Class_Device].object_list);
}
FINSH_FUNCTION_EXPORT(list_device, list device in system)
#endif

#ifdef RT_USING_MODULE
#include <rtm.h>

int list_module(void)
{
    struct rt_module *module;
    struct rt_list_node *list, *node;

    list = &rt_object_container[RT_Object_Class_Module].object_list;

    rt_kprintf("module name     ref\n");
    rt_kprintf("------------ --------\n");
    for (node = list->next; node != list; node = node->next)
    {
        module = (struct rt_module*)(rt_list_entry(node, struct rt_object, list));
        rt_kprintf("%-16s ", module->parent.name);
        rt_kprintf("%-04d \n", module->nref);
    }

    return 0;

}

FINSH_FUNCTION_EXPORT(list_module, list module in system)

int list_mod_detail(const char* name)
{
    int i;
    struct rt_module *module;
    
    /* find module */
    if((module = rt_module_find(name)) != RT_NULL)
    {
        /* module has entry point */
        if(!(module->parent.flag & RT_MODULE_FLAG_WITHOUTENTRY))
        {   
            struct rt_thread *thread;
            struct rt_list_node *tlist;
            rt_uint8_t* ptr;

            /* list main thread in module */
            if(module->module_thread != RT_NULL)
            {   
                rt_kprintf("main thread  pri  status      sp     stack size max used   left tick  error\n");
                rt_kprintf("------------- ---- ------- ---------- ---------- ---------- ---------- ---\n");
                thread = module->module_thread;
                rt_kprintf("%-8.*s 0x%02x", RT_NAME_MAX, thread->name, thread->current_priority);

                if (thread->stat == RT_THREAD_READY)        rt_kprintf(" ready  ");
                else if (thread->stat == RT_THREAD_SUSPEND) rt_kprintf(" suspend");
                else if (thread->stat == RT_THREAD_INIT)    rt_kprintf(" init   ");

                ptr = (rt_uint8_t*)thread->stack_addr;
                while (*ptr == '#')ptr ++;

                rt_kprintf(" 0x%08x 0x%08x 0x%08x 0x%08x %03d\n",
                    thread->stack_size + ((rt_uint32_t)thread->stack_addr - (rt_uint32_t)thread->sp),
                    thread->stack_size,
                    thread->stack_size - ((rt_uint32_t) ptr - (rt_uint32_t)thread->stack_addr),
                    thread->remaining_tick,
                    thread->error);
            }   

            /* list sub thread in module */
            tlist = &module->module_object[RT_Object_Class_Thread].object_list;
            if(!rt_list_isempty(tlist)) _list_thread(tlist);
#ifdef RT_USING_SEMAPHORE
            /* list semaphored in module */
            tlist = &module->module_object[RT_Object_Class_Semaphore].object_list;
            if(!rt_list_isempty(tlist)) _list_sem(tlist);
#endif
#ifdef RT_USING_MUTEX
            /* list mutex in module */
            tlist = &module->module_object[RT_Object_Class_Mutex].object_list;
            if(!rt_list_isempty(tlist)) _list_mutex(tlist);
#endif
#ifdef RT_USING_EVENT
            /* list event in module */
            tlist = &module->module_object[RT_Object_Class_Event].object_list;
            if(!rt_list_isempty(tlist)) _list_event(tlist);
#endif
#ifdef RT_USING_MAILBOX
            /* list mailbox in module */
            tlist = &module->module_object[RT_Object_Class_MailBox].object_list;
            if(!rt_list_isempty(tlist)) _list_mailbox(tlist);
#endif
#ifdef RT_USING_MESSAGEQUEUE
            /* list message queue in module */
            tlist = &module->module_object[RT_Object_Class_MessageQueue].object_list;
            if(!rt_list_isempty(tlist)) _list_msgqueue(tlist);
#endif
#ifdef RT_USING_MEMPOOL
            /* list memory pool in module */
            tlist = &module->module_object[RT_Object_Class_MemPool].object_list;
            if(!rt_list_isempty(tlist)) _list_mempool(tlist);
#endif
#ifdef RT_USING_DEVICE
            /* list device in module */
            tlist = &module->module_object[RT_Object_Class_Device].object_list;
            if(!rt_list_isempty(tlist)) _list_device(tlist);
#endif
            /* list timer in module */
            tlist = &module->module_object[RT_Object_Class_Timer].object_list;
            if(!rt_list_isempty(tlist)) _list_timer(tlist);
        }

        rt_kprintf("symbol    address   \n");
        rt_kprintf("-------- ----------\n");
    
        /* list module export symbols */
        for(i=0; i<module->nsym; i++)
        {
            rt_kprintf("%s 0x%x\n", module->symtab[i].name, module->symtab[i].addr);
        }   
    }

    return 0;
}
FINSH_FUNCTION_EXPORT(list_mod_detail, list module objects in system)
#endif

long list(void)
{
    struct finsh_syscall_item* syscall_item;
    struct finsh_sysvar_item*  sysvar_item;

    rt_kprintf("--Function List:\n");
    {
        struct finsh_syscall* index;
        for (index = _syscall_table_begin; index < _syscall_table_end; index ++)
        {
#ifdef FINSH_USING_DESCRIPTION
            rt_kprintf("%-16s -- %s\n", index->name, index->desc);
#else
            rt_kprintf("%s\n", index->name);
#endif
        }
    }

    /* list syscall list */
    syscall_item = global_syscall_list;
    while (syscall_item != NULL)
    {
        rt_kprintf("[l] %s\n", syscall_item->syscall.name);
        syscall_item = syscall_item->next;
    }

    rt_kprintf("--Variable List:\n");
    {
        struct finsh_sysvar* index;
        for (index = _sysvar_table_begin; index < _sysvar_table_end; index ++)
        {
#ifdef FINSH_USING_DESCRIPTION
            rt_kprintf("%-16s -- %s\n", index->name, index->desc);
#else
            rt_kprintf("%s\n", index->name);
#endif
        }
    }

    sysvar_item = global_sysvar_list;
    while (sysvar_item != NULL)
    {
        rt_kprintf("[l] %s\n", sysvar_item->sysvar.name);
        sysvar_item = sysvar_item->next;
    }

    return 0;
}
FINSH_FUNCTION_EXPORT(list, list all symbol in system)

static int str_is_prefix(const char* prefix, const char* str)
{
    while ((*prefix) && (*prefix == *str))
    {
        prefix ++;
        str ++;
    }

    if (*prefix == 0) return 0;
    return -1;
}

static int str_common(const char * str1, const char * str2)
{
    const char * str = str1;

    while( *str !=0 && *str2 !=0  && (*str == *str2))
    {
        str ++;
        str2 ++;
    }

    return (str - str1);
}

void list_prefix(char* prefix)
{
    struct finsh_syscall_item* syscall_item;
    struct finsh_sysvar_item*  sysvar_item;
    rt_uint16_t func_cnt, var_cnt;
    int length, min_length;
    const char* name_ptr;

    func_cnt = 0;
    var_cnt  = 0;
    name_ptr = RT_NULL;

    /* checks in system function call */
    {
        struct finsh_syscall* index;
        for (index = _syscall_table_begin; index < _syscall_table_end; index ++)
        {
            if (str_is_prefix(prefix, index->name) == 0)
            {
                if (func_cnt == 0)
                {
                    rt_kprintf("--function:\n");

                    if (*prefix != 0)
                    {
                        /* set name_ptr */
                        name_ptr = index->name;

                        /* set initial length */
                        min_length = strlen(name_ptr);
                    }
                }

                func_cnt ++;

                if (*prefix != 0)
                {
                    length = str_common(name_ptr, index->name);
                    if (length < min_length)
                        min_length = length;
                }

#ifdef FINSH_USING_DESCRIPTION
                rt_kprintf("%-16s -- %s\n", index->name, index->desc);
#else
                rt_kprintf("%s\n", index->name);
#endif
            }
        }
    }

    /* checks in dynamic system function call */
    syscall_item = global_syscall_list;
    while (syscall_item != NULL)
    {
        if (str_is_prefix(prefix, syscall_item->syscall.name) == 0)
        {
            if (func_cnt == 0)
            {
                rt_kprintf("--function:\n");
                if (*prefix != 0 && name_ptr == NULL)
                {
                    /* set name_ptr */
                    name_ptr = syscall_item->syscall.name;

                    /* set initial length */
                    min_length = strlen(name_ptr);
                }
            }

            func_cnt ++;

            if (*prefix != 0)
            {
                length = str_common(name_ptr, syscall_item->syscall.name);
                if (length < min_length)
                    min_length = length;
            }

            rt_kprintf("[l] %s\n", syscall_item->syscall.name);
        }
        syscall_item = syscall_item->next;
    }

    /* checks in system variable */
    {
        struct finsh_sysvar* index;
        for (index = _sysvar_table_begin; index < _sysvar_table_end; index ++)
        {
            if (str_is_prefix(prefix, index->name) == 0)
            {
                if (var_cnt == 0)
                {
                    rt_kprintf("--variable:\n");

                    if (*prefix != 0 && name_ptr == NULL)
                    {
                        /* set name_ptr */
                        name_ptr = index->name;

                        /* set initial length */
                        min_length = strlen(name_ptr);

                    }
                }

                var_cnt ++;

                if (*prefix != 0)
                {
                    length = str_common(name_ptr, index->name);
                    if (length < min_length)
                        min_length = length;
                }

#ifdef FINSH_USING_DESCRIPTION
                rt_kprintf("%-16s -- %s\n", index->name, index->desc);
#else
                rt_kprintf("%s\n", index->name);
#endif
            }
        }
    }

    /* checks in dynamic system variable */
    sysvar_item = global_sysvar_list;
    while (sysvar_item != NULL)
    {
        if (str_is_prefix(prefix, sysvar_item->sysvar.name) == 0)
        {
            if (var_cnt == 0)
            {
                rt_kprintf("--variable:\n");
                if (*prefix != 0 && name_ptr == NULL)
                {
                    /* set name_ptr */
                    name_ptr = sysvar_item->sysvar.name;

                    /* set initial length */
                    min_length = strlen(name_ptr);
                }
            }

            var_cnt ++;

            if (*prefix != 0)
            {
                length = str_common(name_ptr, sysvar_item->sysvar.name);
                if (length < min_length)
                    min_length = length;
            }

            rt_kprintf("[v] %s\n", sysvar_item->sysvar.name);
        }
        sysvar_item = sysvar_item->next;
    }

    /* only one matched */
    if (name_ptr != NULL)
    {
        rt_strncpy(prefix, name_ptr, min_length);
    }
}

#ifdef FINSH_USING_SYMTAB
static int dummy = 0;
FINSH_VAR_EXPORT(dummy, finsh_type_int, dummy variable for finsh)
#endif