meminfo.h-Dateireferenz

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gehe zum Quellcode dieser Datei

Datenstrukturen
struct	cam_meminfo

Funktionen
void	GetMemInfo (cam_meminfo *)
int	GetExMemInfo (cam_meminfo *)
int	GetARamInfo (cam_meminfo *)
void	GetCombinedMemInfo (cam_meminfo *)
int	core_get_free_memory ()

Variablen
const char	_start
const char	_end

Dokumentation der Funktionen

int core_get_free_memory

(

)

Definiert in Zeile 85 der Datei main.c.

{
    cam_meminfo camera_meminfo;
    GetCombinedMemInfo(&camera_meminfo);
    return camera_meminfo.free_block_max_size;
}

int GetARamInfo

(

cam_meminfo *

)

Definiert in Zeile 226 der Datei memmgmt.c.

{
    return chdk_meminfo(&aram_heap, camera_meminfo);
}

void GetCombinedMemInfo

(

cam_meminfo *

)

Definiert in Zeile 259 der Datei memmgmt.c.

{
    // get system meminfo, should always be available
    GetMemInfo(camera_meminfo);
// some fields are set to -1 for vxworks cams
#if !defined(CAM_DRYOS)
    camera_meminfo->allocated_peak = 0;
    camera_meminfo->total_size = 0;
#ifdef CAM_NO_MEMPARTINFO
    // a more useful base value than 0
    camera_meminfo->free_size = camera_meminfo->free_block_max_size;
    camera_meminfo->free_block_count = 0;
    camera_meminfo->allocated_size = 0;
    camera_meminfo->allocated_count = 0;
#endif
#endif

    // these don't make sense to combine
    camera_meminfo->start_address = camera_meminfo->end_address = 0;

    cam_meminfo m;
    if(GetARamInfo(&m)) {
        combine_meminfo(camera_meminfo,&m);
    }
    if(GetExMemInfo(&m)) {
        combine_meminfo(camera_meminfo,&m);
    }
}

int GetExMemInfo

(

cam_meminfo *

)

Definiert in Zeile 195 der Datei memmgmt.c.

{
    return chdk_meminfo(&exmem_heap, camera_meminfo);
}

void GetMemInfo

(

cam_meminfo *

)

Definiert in Zeile 1111 der Datei wrappers.c.

{
// Use firmware GetMemInfo function to retrieve info about Canon heap memory allocation

#if defined(CAM_DRYOS)
    // Prior to dryos R39 GetMemInfo returns 9 values, after R39 it returns 10 (all but 1 are used in each case)
    int fw_info[10];
    extern void _GetMemInfo(int*);
    _GetMemInfo(fw_info);

#if defined(CAM_DRYOS_2_3_R39)
    // For newer dryos version copy all 9 used values to CHDK structure
    camera_meminfo->start_address        = fw_info[0];
    camera_meminfo->end_address          = fw_info[1];
    camera_meminfo->total_size           = fw_info[2];
    camera_meminfo->allocated_size       = fw_info[3];
    camera_meminfo->allocated_peak       = fw_info[4];
    camera_meminfo->allocated_count      = fw_info[5];
    camera_meminfo->free_size            = fw_info[6];
    camera_meminfo->free_block_max_size  = fw_info[7];
    camera_meminfo->free_block_count     = fw_info[8];
#else
    // For older dryos version copy 8 used values to CHDK structure and calculate missing value
    camera_meminfo->start_address        = fw_info[0];
    camera_meminfo->end_address          = fw_info[0] + fw_info[1];
    camera_meminfo->total_size           = fw_info[1];
    camera_meminfo->allocated_size       = fw_info[2];
    camera_meminfo->allocated_peak       = fw_info[3];
    camera_meminfo->allocated_count      = fw_info[4];
    camera_meminfo->free_size            = fw_info[5];
    camera_meminfo->free_block_max_size  = fw_info[6];
    camera_meminfo->free_block_count     = fw_info[7];
#endif
#else // vxworks
    extern int sys_mempart_id;
    // -1 for invalid
    memset(camera_meminfo,0xFF,sizeof(cam_meminfo));
    if(!_TakeSemaphore(canon_heap_sem,CANON_HEAP_SEM_TIMEOUT)) {
#ifdef CAM_NO_MEMPARTINFO
        camera_meminfo->free_block_max_size = _memPartFindMax(sys_mempart_id);
#else
        int fw_info[5];
        _memPartInfoGet(sys_mempart_id,fw_info);
        // TODO we could fill in start address from _start + MEMISOSIZE, if chdk not in exmem
        // these are guessed, look reasonable on a540
        camera_meminfo->free_size = fw_info[0];
        camera_meminfo->free_block_count = fw_info[1];
        camera_meminfo->free_block_max_size = fw_info[2];
        camera_meminfo->allocated_size = fw_info[3];
        camera_meminfo->allocated_count = fw_info[4];
#endif
        _GiveSemaphore(canon_heap_sem);
    }
#endif
}

Variablen-Dokumentation

const char _end

const char _start