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Ghoti
Joined: 31 Dec 2005
Posts: 288
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 Posted: Sun Jun 11, 2006 9:32 pm Post subject: Wrong with my read code? |
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Hi folks,
i have this read code that reads the settings for info and saves that into variables
the problem however is that the opening of a file goes correctly but the actual reading not:
| Code: | // -----------------------------------------
//
// LoadSettings
//
// -----------------------------------------
int LoadSettings(void){
int fdout;
int fd2;
//char sTmpLetter[2];
fdout = sceIoOpen("settings.txt", PSP_O_RDONLY, 0777);
if(fdout < 0)
{
DebugPrint(1,1, "error opening SETTINGS.TXT :(");
fdout = sceIoOpen("SETTINGS.TXT", PSP_O_RDONLY, 0777);
if(fdout < 0)
{
DebugPrint(1,2, "error opening settings.txt :(");
}
}
fd2 = sceIoRead(fdout, Settings, strlen(Settings));
sprintf(sBuffer, "%i", fd2);
if(fd2 <= 0)
{
DebugPrint(1,3, "error bytes read error");
DebugPrint(1,4, sBuffer);
sceIoClose(fdout);
sceGuTerm();
sceKernelExitGame();
}
int a, i;
int aLast, aTmp;
aLast = 0;
aTmp = 1;
for (a=0;a<101;a++){
if (Settings[a] == '*'){
if (aTmp == 1) {
sprintf(sBuffer, "0");
for (i=aLast;i<a;i++){
sprintf(sBuffer, "%s%c",sBuffer,Settings[i]);
}
iLeftRightSpeed = atoi(sBuffer);
iLRSpeed = 5 + (iLeftRightSpeed *5);
aLast = a+1;
aTmp += 1;
}
else if (aTmp == 2) {
sprintf(sBuffer, "0");
for (i=aLast;i<a;i++){
sprintf(sBuffer, "%s%c",sBuffer,Settings[i]);
}
iStatusSound = atoi(sBuffer);
aLast = a+1;
aTmp += 1;
}
}
}
return 0;
}
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fdout has value 7
fd2 has value 0
why is this?
_________________
My PSP games:
Boxy II: http://www.ghoti.nl/boxyii.php
Elementals: http://www.ghoti.nl/Elementals.php |
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moonlight
Joined: 26 Oct 2005
Posts: 567
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| Posted: Sun Jun 11, 2006 9:40 pm Post subject: |
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Settings strlen(Settings)?
Maybe if you have something like this
char Settings[64];
you should do
fd2 = sceIoRead(fdout, Settings, 64-1);
if (fd2 >= 0)
Settings[fd2] = 0; |
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Ghoti
Joined: 31 Dec 2005
Posts: 288
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subbie
Joined: 05 May 2005
Posts: 122
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| Posted: Mon Jun 12, 2006 2:38 am Post subject: |
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fyi, (few pointers)
strlen tells you the length of the string in the varible. So even if your array is say 64 bytes but all it contains is "" the result will be zero.
It's best to just keep track of the size of your array you're storing. Or better yet, get the length of the file using the seek command. |
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