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lightning-sunbird  0.9+nobinonly
Defines | Functions
InstallCleanup.h File Reference
#include <stdlib.h>
#include <stdio.h>
#include "prtypes.h"
#include "VerReg.h"
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Defines

#define DONE   0
#define TRY_LATER   -1

Functions

int PerformScheduledTasks (HREG)
int DeleteScheduledFiles (HREG)
int ReplaceScheduledFiles (HREG)
int NativeReplaceFile (const char *replacementFile, const char *doomedFile)
int NativeDeleteFile (const char *aFileToDelete)

Define Documentation

#define DONE   0

Definition at line 46 of file InstallCleanup.h.

#define TRY_LATER   -1

Definition at line 47 of file InstallCleanup.h.


Function Documentation

Definition at line 111 of file InstallCleanup.cpp.

{
    REGERR  err;
    RKEY    key;
    REGENUM state = 0;
    int rv = DONE;

    /* perform scheduled file deletions  */
    if (REGERR_OK == NR_RegGetKey(reg,ROOTKEY_PRIVATE,REG_DELETE_LIST_KEY,&key))
    {
        // the delete key exists, so we loop through its children
        // and try to delete all the listed files

        char    namebuf[MAXREGNAMELEN];
        char    valbuf[MAXREGPATHLEN];

        while (REGERR_OK == NR_RegEnumEntries( reg, key, &state, namebuf,
                                               sizeof(namebuf), 0 ) )
        {
            uint32 bufsize = sizeof(valbuf); // gets changed, must reset
            err = NR_RegGetEntry( reg, key, namebuf, valbuf, &bufsize );
            if ( err == REGERR_OK )
            {
                rv = NativeDeleteFile(valbuf);
                if (rv == DONE)
                    NR_RegDeleteEntry( reg, key, namebuf);
            }
        }

        /* delete list node if empty */
        state = 0;
        err = NR_RegEnumEntries(reg, key, &state, namebuf, sizeof(namebuf), 0);
        if ( err == REGERR_NOMORE )
        {
            NR_RegDeleteKey(reg, ROOTKEY_PRIVATE, REG_DELETE_LIST_KEY);
            rv = DONE;
        }
        else
        {
            rv = TRY_LATER;
        }
    }
    return rv;
}

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int NativeDeleteFile ( const char *  aFileToDelete)

Definition at line 187 of file InstallCleanupMac.cpp.

{
    OSErr err;
    FSSpec delSpec;
    
    if (!aFileToDelete)
        return DONE;
        
    // stat the file
    err = GetFSSpecFromPath(aFileToDelete, &delSpec);
    if (err != noErr)
    {
        // return fine if it doesn't exist
        return DONE;
    }
        
    // else try to delete it
    err = FSpDelete(&delSpec);
    if (err != noErr)
    {
        // tell user to try again later if deletion failed
        return TRY_LATER;
    }

    return DONE;
}

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int NativeReplaceFile ( const char *  replacementFile,
const char *  doomedFile 
)

Definition at line 217 of file InstallCleanupMac.cpp.

{
    OSErr err;
    FSSpec replSpec, doomSpec, tgtDirSpec;
    long dirID;
    Boolean isDir;
    
    if (!aReplacementFile || !aDoomedFile)
        return DONE;
        
    err = GetFSSpecFromPath(aReplacementFile, &replSpec);
    if (err != noErr)
        return DONE;
                      
    // stat replacement file
    err = FSpGetDirectoryID(&replSpec, &dirID, &isDir);
    if (err != noErr || isDir)
    {
        // return fine if it doesn't exist
        return DONE;
    }
        
    // check if the replacement file and doomed file are the same
    if (strcasecmp(aReplacementFile, aDoomedFile) == 0)
    {
        // return fine if they are the same
        return DONE;
    }
        
    // try and delete doomed file (NOTE: this call also stats)
    err = GetFSSpecFromPath(aDoomedFile, &doomSpec); 
    if (err == noErr)
    { 
        // (will even try to delete a dir with this name)
        err = FSpDelete(&doomSpec);
        
        // if deletion failed tell user to try again later
        if (err != noErr)
            return TRY_LATER;
    }
    
    // get the target dir spec (parent directory of doomed file)
    err = FSMakeFSSpec(doomSpec.vRefNum, doomSpec.parID, "\p", &tgtDirSpec);
    if (err == noErr)
    {
        // now try and move replacment file to path of doomed file
        err = FSpMoveRename(&replSpec, &tgtDirSpec, doomSpec.name);
        if (err != noErr)
        {
            // if move failed tell user to try agian later
            return TRY_LATER;
        }
    }
        
    return DONE;
}

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Definition at line 39 of file InstallCleanup.cpp.

{
    int deleteComplete  = DONE;
    int replaceComplete = DONE;

    deleteComplete  = DeleteScheduledFiles( reg );
    replaceComplete = ReplaceScheduledFiles( reg );
    if ((deleteComplete == DONE) && (replaceComplete == DONE))
        return DONE;
    else
        return TRY_LATER;
}

Definition at line 56 of file InstallCleanup.cpp.

{
    RKEY    key;
    int rv = DONE;

    /* replace files if any listed */
    if (REGERR_OK == NR_RegGetKey(reg,ROOTKEY_PRIVATE,REG_REPLACE_LIST_KEY,&key))
    {
        char keyname[MAXREGNAMELEN];
        char doomedFile[MAXREGPATHLEN];
        char srcFile[MAXREGPATHLEN];

        uint32 bufsize;
        REGENUM state = 0;
        while (REGERR_OK == NR_RegEnumSubkeys( reg, key, &state, 
                               keyname, sizeof(keyname), REGENUM_CHILDREN))
        {
            bufsize = sizeof(srcFile);
            REGERR err1 = NR_RegGetEntry( reg, (RKEY)state,
                               REG_REPLACE_SRCFILE, &srcFile, &bufsize);

            bufsize = sizeof(doomedFile);
            REGERR err2 = NR_RegGetEntry( reg, (RKEY)state,
                               REG_REPLACE_DESTFILE, &doomedFile, &bufsize);

            if ( err1 == REGERR_OK && err2 == REGERR_OK )
            {
                int result = NativeReplaceFile( srcFile, doomedFile );
                if (result == DONE)
                {
                    // This one is done
                    NR_RegDeleteKey( reg, key, keyname );
                }
            }
        }

        /* delete list node if empty */
        state = 0;
        if (REGERR_NOMORE == NR_RegEnumSubkeys( reg, key, &state, keyname,
                                     sizeof(keyname), REGENUM_CHILDREN ))
        {
            NR_RegDeleteKey(reg, ROOTKEY_PRIVATE, REG_REPLACE_LIST_KEY);
            rv = DONE;
        }
        else
        {
            rv = TRY_LATER;
        }
    }
    return rv;
}

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