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view src/ui/mfw/mfw_str.c @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 92abb46dc1ba
children
line wrap: on
line source

/*
+--------------------------------------------------------------------+
| PROJECT: MMI-Framework (8417)         $Workfile:: mfw_str.c       $|
| $Author:: Es  $ CONDAT GmbH           $Revision:: 1               $|
| CREATED: 03.08.00                     $Modtime:: 03.08.00 18:57   $|
| STATE  : code                                                      |
+--------------------------------------------------------------------+

   MODULE  : MFW_STR

   PURPOSE : string handling functions

   EXPORT  :

   TO DO   :

   $History:: mfw_str.c                                             $
*/

#define ENTITY_MFW

#if defined (NEW_FRAME)

#include "typedefs.h"
#include "vsi.h"
#include "custom.h"
#include "gsm.h"

#else

#include "STDDEFS.H"
#include "custom.h"
#include "gsm.h"
#include "vsi.h"

#endif

#include "mfw_mfw.h"
#include "mfw_sys.h"
#include "mfw_str.h"



/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrChr          |
+--------------------------------------------------------------------+

  PURPOSE : find first occurence of char in string

*/

MfwChar* mfwStrChr (MfwChar* p, int c)
{
    while (*p && *p != c)
        p++;

    return (*p) ? p : 0;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrLen          |
+--------------------------------------------------------------------+

  PURPOSE : compute length of string

*/

int mfwStrLen (MfwChar *s)
{
    int i = 0;

    while (*s++)
        i++;

    return i;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrSiz          |
+--------------------------------------------------------------------+

  PURPOSE : get length of counted string

*/

int mfwStrSiz (MfwStr *s)
{
#ifdef MFW_COUNTED_STRINGS
    return s->len;
#else
    return mfwStrLen(s);
#endif
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrAt           |
+--------------------------------------------------------------------+

  PURPOSE : get substring of counted string

*/

MfwChar* mfwStrAt (MfwStr *s, int off)
{
#ifdef MFW_COUNTED_STRINGS
    return s->s+off;
#else
    return s+off;
#endif
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrCut          |
+--------------------------------------------------------------------+

  PURPOSE : cut off (shorten) counted string

*/

MfwChar* mfwStrCut (MfwStr* s, int n)
{
#ifdef MFW_COUNTED_STRINGS
    s->len-=n;
    s->s[s->len]=0;
    return s->s;
#else
    s[mfwStrLen(s)-n] = 0;
    return s;
#endif
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrMov          |
+--------------------------------------------------------------------+

  PURPOSE : move (copy) a string into a counted string (override)

*/

MfwChar* mfwStrMov (MfwStr* d, int o, MfwChar* s)
{
#ifdef MFW_COUNTED_STRINGS
    int i = mfwStrLen(s);
    memcpy(d->s+o,s,i*sizeof(MfwChar));
    d->len = i + o;
    d->s[o+i] = 0;
    return d->s;
#else
    int i = mfwStrLen(s);
    memcpy(d+o,s,i*sizeof(MfwChar));
    d[o+i] = 0;
    return d;
#endif
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrIns          |
+--------------------------------------------------------------------+

  PURPOSE : insert (copy) a string into a counted string (expand)

*/

MfwChar* mfwStrIns (MfwStr* d, int o, MfwChar* s)
{
#ifdef MFW_COUNTED_STRINGS
    int i = mfwStrLen(s);
    memmove(d->s+o+i,d->s+o,(mfwStrSiz(d)-o)*sizeof(MfwChar));
    memmove(d->s+o,s,i*sizeof(MfwChar));
    d->len += i;
    return d->s;
#else
    int i = mfwStrLen(s);
    memmove(d+o+i,d+o,(mfwStrSiz(d)-o)*sizeof(MfwChar));
    memmove(d+o,s,i*sizeof(MfwChar));
    return d;
#endif
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrApp          |
+--------------------------------------------------------------------+

  PURPOSE : append string to counted string

*/

MfwChar* mfwStrApp (MfwStr* s, MfwChar* c)
{
    return mfwStrMov(s,mfwStrSiz(s),c);
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_STR            |
| STATE   : code                        ROUTINE : mfwStrRChr         |
+--------------------------------------------------------------------+

  PURPOSE : find last occurence of char in string

*/

MfwChar* mfwStrRChr (MfwChar* p, int c)
{
    int i = mfwStrLen(p);

    while (i && p[i-1] != c)
        i--;

    return (i) ? p + i - 1 : 0;
}