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//==========================================================================

//

//      fileio1.c

//

//      Test fileio system

//

//==========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

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// or inline functions from this file, or you compile this file and link it

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//####ECOSGPLCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):           nickg

// Contributors:        nickg

// Date:                2000-05-25

// Purpose:             Test fileio system

// Description:         This test uses the testfs to check out the initialization

//                      and basic operation of the fileio system

//                      

//                      

//                      

//                      

//                      

//              

//

//####DESCRIPTIONEND####

//

//==========================================================================

#include <pkgconf/hal.h>

#include <pkgconf/kernel.h>

#include <pkgconf/io_fileio.h>

#include <cyg/kernel/ktypes.h>         // base kernel types

#include <cyg/infra/cyg_trac.h>        // tracing macros

#include <cyg/infra/cyg_ass.h>         // assertion macros

#include <unistd.h>

#include <fcntl.h>

#include <sys/stat.h>

#include <errno.h>

#include <string.h>

#include <cyg/infra/testcase.h>

#include <cyg/infra/diag.h>            // HAL polled output

//==========================================================================

// Include the test filesystem.

// If we could make tests out of multiple files, then we could just link

// against the object file for this rather than including it.

#include "testfs.c"

//==========================================================================

#define SHOW_RESULT( _fn, _res ) \

diag_printf("<INFO>: " #_fn "() returned %d %s\n", _res, _res<0?strerror(errno):"");

//==========================================================================

#define IOSIZE  100

//==========================================================================

static void listdir( char *name, int statp )

{

    int err;

    DIR *dirp;

    diag_printf("<INFO>: reading directory %s\n",name);

    dirp = opendir( name );

    if( dirp == NULL ) SHOW_RESULT( opendir, -1 );

    for(;;)

    {

        struct dirent *entry = readdir( dirp );

        if( entry == NULL )

            break;

        diag_printf("<INFO>: entry %14s",entry->d_name);

        if( statp )

        {

            char fullname[PATH_MAX];

            struct stat sbuf;

            if( name[0] )

            {

                strcpy(fullname, name );

                if( !(name[0] == '/' && name[1] == 0 ) )

                    strcat(fullname, "/" );

            }

            else fullname[0] = 0;

            strcat(fullname, entry->d_name );

            err = stat( fullname, &sbuf );

            if( err < 0 )

            {

                if( errno == ENOSYS )

                    diag_printf(" <no status available>");

                else SHOW_RESULT( stat, err );

            }

            else

            {

                diag_printf(" [mode %08x nlink %d size %d]",

                            sbuf.st_mode,sbuf.st_nlink,sbuf.st_size);

            }

        }

        diag_printf("\n");

    }

    err = closedir( dirp );

    if( err < 0 ) SHOW_RESULT( stat, err );

}

//==========================================================================

static void createfile( char *name, size_t size )

{

    char buf[IOSIZE];

    int fd;

    ssize_t wrote;

    int i;

    int err;

    diag_printf("<INFO>: create file %s size %d\n",name,size);

    err = access( name, F_OK );

    if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err );

    for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256;

    fd = open( name, O_WRONLY|O_CREAT );

    if( fd < 0 ) SHOW_RESULT( open, fd );

    while( size > 0 )

    {

        ssize_t len = size;

        if ( len > IOSIZE ) len = IOSIZE;

        wrote = write( fd, buf, len );

        if( wrote != len ) SHOW_RESULT( write, wrote );

        size -= wrote;

    }

    err = close( fd );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

static void maxfile( char *name )

{

    char buf[IOSIZE];

    int fd;

    ssize_t wrote;

    int i;

    int err;

    size_t size = 0;

    diag_printf("<INFO>: create maximal file %s\n",name);

    err = access( name, F_OK );

    if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err );

    for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256;

    fd = open( name, O_WRONLY|O_CREAT );

    if( fd < 0 ) SHOW_RESULT( open, fd );

    do

    {

        wrote = write( fd, buf, IOSIZE );

        if( wrote < 0 ) SHOW_RESULT( write, wrote );

        size += wrote;

    } while( wrote == IOSIZE );

    diag_printf("<INFO>: file size == %d\n",size);

    err = close( fd );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

static void checkfile( char *name )

{

    char buf[IOSIZE];

    int fd;

    ssize_t done;

    int i;

    int err;

    diag_printf("<INFO>: check file %s\n",name);

    err = access( name, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    fd = open( name, O_RDONLY );

    if( fd < 0 ) SHOW_RESULT( open, fd );

    for(;;)

    {

        done = read( fd, buf, IOSIZE );

        if( done < 0 ) SHOW_RESULT( read, done );

        if( done == 0 ) break;

        for( i = 0; i < done; i++ )

            if( buf[i] != i%256 )

            {

                diag_printf("buf[%d](%02x) != %02x\n",i,buf[i],i%256);

                CYG_TEST_FAIL("Data read not equal to data written\n");

            }

    }

    err = close( fd );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

static void copyfile( char *name2, char *name1 )

{

    int err;

    char buf[IOSIZE];

    int fd1, fd2;

    ssize_t done, wrote;

    diag_printf("<INFO>: copy file %s -> %s\n",name2,name1);

    err = access( name1, F_OK );

    if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err );

    err = access( name2, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    fd1 = open( name1, O_WRONLY|O_CREAT );

    if( fd1 < 0 ) SHOW_RESULT( open, fd1 );

    fd2 = open( name2, O_RDONLY );

    if( fd2 < 0 ) SHOW_RESULT( open, fd2 );

    for(;;)

    {

        done = read( fd2, buf, IOSIZE );

        if( done < 0 ) SHOW_RESULT( read, done );

        if( done == 0 ) break;

        wrote = write( fd1, buf, done );

        if( wrote != done ) SHOW_RESULT( write, wrote );

        if( wrote != done ) break;

    }

    err = close( fd1 );

    if( err < 0 ) SHOW_RESULT( close, err );

    err = close( fd2 );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

static void comparefiles( char *name2, char *name1 )

{

    int err;

    char buf1[IOSIZE];

    char buf2[IOSIZE];

    int fd1, fd2;

    ssize_t done1, done2;

    int i;

    diag_printf("<INFO>: compare files %s == %s\n",name2,name1);

    err = access( name1, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    err = access( name1, F_OK );

    if( err != 0 ) SHOW_RESULT( access, err );

    fd1 = open( name1, O_RDONLY );

    if( fd1 < 0 ) SHOW_RESULT( open, fd1 );

    fd2 = open( name2, O_RDONLY );

    if( fd2 < 0 ) SHOW_RESULT( open, fd2 );

    for(;;)

    {

        done1 = read( fd1, buf1, IOSIZE );

        if( done1 < 0 ) SHOW_RESULT( read, done1 );

        done2 = read( fd2, buf2, IOSIZE );

        if( done2 < 0 ) SHOW_RESULT( read, done2 );

        if( done1 != done2 )

            diag_printf("Files different sizes\n");

        if( done1 == 0 ) break;

        for( i = 0; i < done1; i++ )

            if( buf1[i] != buf2[i] )

            {

                diag_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]);

                CYG_TEST_FAIL("Data in files not equal\n");

            }

    }

    err = close( fd1 );

    if( err < 0 ) SHOW_RESULT( close, err );

    err = close( fd2 );

    if( err < 0 ) SHOW_RESULT( close, err );

}

//==========================================================================

// main

int main( int argc, char **argv )

{

    int err;

    CYG_TEST_INIT();

    // --------------------------------------------------------------

    createfile( "/foo", 202 );

    checkfile( "foo" );

    copyfile( "foo", "fee");

    checkfile( "fee" );

    comparefiles( "foo", "/fee" );

    err = mkdir( "/bar", 0 );

    if( err < 0 ) SHOW_RESULT( mkdir, err );

    listdir( "/" , false);

    copyfile( "fee", "/bar/fum" );

    checkfile( "bar/fum" );

    comparefiles( "/fee", "bar/fum" );

    err = chdir( "bar" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    err = rename( "/foo", "bundy" );

    if( err < 0 ) SHOW_RESULT( rename, err );

    listdir( "/", true );

    listdir( "" , true );

    checkfile( "/bar/bundy" );

    comparefiles("/fee", "bundy" );

    testfs_dump();

    // --------------------------------------------------------------

    err = unlink( "/fee" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = unlink( "fum" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = unlink( "/bar/bundy" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = chdir( "/" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    err = rmdir( "/bar" );

    if( err < 0 ) SHOW_RESULT( rmdir, err );

    listdir( "/", false );

    // --------------------------------------------------------------

    err = mount( "", "/ram", "testfs" );

    if( err < 0 ) SHOW_RESULT( mount, err );

    createfile( "/ram/tinky", 456 );

    copyfile( "/ram/tinky", "/ram/laalaa" );

    checkfile( "/ram/tinky");

    checkfile( "/ram/laalaa");

    comparefiles( "/ram/tinky", "/ram/laalaa" );

    err = chdir( "/ram" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    createfile( "tinky", 678 );

    checkfile( "tinky" );

    maxfile( "dipsy" );

    checkfile( "dipsy" );

    copyfile( "dipsy", "po" );

    checkfile( "po" );

    comparefiles( "dipsy", "po" );

    testfs_dump();

    // --------------------------------------------------------------

    err = unlink( "tinky" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = unlink( "dipsy" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = unlink( "po" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = unlink( "laalaa" );

    if( err < 0 ) SHOW_RESULT( unlink, err );

    err = chdir( "/" );

    if( err < 0 ) SHOW_RESULT( chdir, err );

    err = umount( "/ram" );

    if( err < 0 ) SHOW_RESULT( umount, err );

    CYG_TEST_PASS_FINISH("fileio1");

}

// -------------------------------------------------------------------------

// EOF fileio1.c