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Make it possible to interrupt md5sum. FS#9209 by Chrisopher Williams.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18756 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Antoine Cellerier 2008-10-09 15:09:07 +00:00
parent f5fcc76bbc
commit c4e177a1b1
1 changed files with 25 additions and 9 deletions
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34
apps/plugins/md5sum.c
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@ -28,20 +28,29 @@ static const struct plugin_api *rb;
MEM_FUNCTION_WRAPPERS(rb); MEM_FUNCTION_WRAPPERS(rb);
#define BUFFERSIZE 16384
static int count = 0; static int count = 0;
static int done = 0; static int done = 0;
static bool quit = false;
static int hash( char *string, const char *path ) static int hash( char *string, const char *path )
{ {
char *buffer[512]; static char buffer[BUFFERSIZE];
ssize_t len; ssize_t len;
struct md5_s md5; struct md5_s md5;
int in = rb->open( path, O_RDONLY ); int in = rb->open( path, O_RDONLY );
if( in < 0 ) return -1; if( in < 0 ) return -1;
InitMD5( &md5 ); InitMD5( &md5 );
while( ( len = rb->read( in, buffer, 512 ) ) > 0 ) while( !quit && ( len = rb->read( in, buffer, sizeof(buffer) ) ) > 0 )
{
AddMD5( &md5, buffer, len ); AddMD5( &md5, buffer, len );
if( rb->get_action(CONTEXT_STD, TIMEOUT_NOBLOCK) == ACTION_STD_CANCEL )
quit = true;
}
EndMD5( &md5 ); EndMD5( &md5 );
psz_md5_hash( string, &md5 ); psz_md5_hash( string, &md5 );
@ -57,19 +66,26 @@ static void hash_file( int out, const char *path )
else else
{ {
char string[MD5_STRING_LENGTH+1]; char string[MD5_STRING_LENGTH+1];
int status;
done++; done++;
rb->splashf( 0, "%d / %d : %s", done, count, path ); rb->splashf( 0, "%d / %d : %s", done, count, path );
if( hash( string, path ) ) status = hash( string, path );
if( quit )
return;
if( status )
rb->write( out, "error", 5 ); rb->write( out, "error", 5 );
else else
rb->write( out, string, MD5_STRING_LENGTH ); rb->write( out, string, MD5_STRING_LENGTH );
rb->write( out, " ", 2 ); rb->write( out, " ", 2 );
rb->write( out, path, rb->strlen( path ) ); rb->write( out, path, rb->strlen( path ) );
rb->write( out, "\n", 1 ); rb->write( out, "\n", 1 );
rb->yield();
} }
} }
static void hash_dir( int out, const char *path );
static void hash_dir( int out, const char *path ) static void hash_dir( int out, const char *path )
{ {
DIR *dir; DIR *dir;
@ -78,11 +94,11 @@ static void hash_dir( int out, const char *path )
dir = rb->opendir( path ); dir = rb->opendir( path );
if( dir ) if( dir )
{ {
while( ( entry = rb->readdir( dir ) ) ) while( !quit && ( entry = rb->readdir( dir ) ) )
{ {
char childpath[MAX_PATH]; char childpath[MAX_PATH];
rb->snprintf( childpath, MAX_PATH, "%s/%s", rb->snprintf( childpath, MAX_PATH, "%s/%s",
path, entry->d_name ); rb->strcmp( path, "/" ) ? path : "", entry->d_name );
if( entry->attribute & ATTR_DIRECTORY ) if( entry->attribute & ATTR_DIRECTORY )
{ {
if( rb->strcmp( entry->d_name, "." ) if( rb->strcmp( entry->d_name, "." )
@ -108,7 +124,7 @@ static void hash_list( int out, const char *path )
char newpath[MAX_PATH]; char newpath[MAX_PATH];
if( list < 0 ) return; if( list < 0 ) return;
while( rb->read_line( list, newpath, MAX_PATH ) > 0 ) while( !quit && rb->read_line( list, newpath, MAX_PATH ) > 0 )
{ {
DIR *dir = rb->opendir( newpath ); DIR *dir = rb->opendir( newpath );
if( dir ) if( dir )
@ -132,7 +148,7 @@ static void hash_check( int out, const char *path )
int len; int len;
if( list < 0 ) return; if( list < 0 ) return;
while( ( len = rb->read_line( list, line, MD5_STRING_LENGTH+1+MAX_PATH+1 ) ) > 0 ) while( !quit && ( len = rb->read_line( list, line, MD5_STRING_LENGTH+1+MAX_PATH+1 ) ) > 0 )
{ {
if( out < 0 ) if( out < 0 )
count++; count++;
@ -236,7 +252,7 @@ enum plugin_status plugin_start(const struct plugin_api* api, const void* parame
done = 0; done = 0;
action( out, arg ); action( out, arg );
out = rb->open( filename, O_WRONLY|O_CREAT ); out = rb->open( filename, O_WRONLY|O_CREAT|O_TRUNC );
if( out < 0 ) return PLUGIN_ERROR; if( out < 0 ) return PLUGIN_ERROR;
action( out, arg ); action( out, arg );
rb->close( out ); rb->close( out );