Now spawning child processes on windows.

git-svn-id: http://svn.complang.org/ragel/trunk@324 052ea7fc-9027-0410-9066-f65837a77df0

diff --git a/ragel/main.cpp b/ragel/main.cpp
index 1edcfe9..c6e9059 100644 (file)
--- a/ragel/main.cpp
+++ b/ragel/main.cpp
@@ -488,7 +488,7 @@ char **makePathChecksUnix( const char *argv0, const char *progName )
 }
 
 
-int forkAndExec( char *progName, char **pathChecks, 
+void forkAndExec( char *progName, char **pathChecks, 
                ArgsVector &args, char *intermed )
 {
        pid_t pid = fork();
@@ -519,8 +519,6 @@ int forkAndExec( char *progName, char **pathChecks,
        
        if ( WEXITSTATUS(status) != 0 )
                cleanExit( intermed, WEXITSTATUS(status) );
-
-       return status;
 }
 
 #else
@@ -562,6 +560,27 @@ char **makePathChecksWin( const char *progName )
        return result;
 }
 
+void spawn( char *progName, char **pathChecks, 
+               ArgsVector &args, char *intermed )
+{
+       int result = 0;
+       while ( *pathChecks != 0 ) {
+               cerr << "trying to execute " << *pathChecks << endl;
+               result = _spawnv( _P_WAIT, *pathChecks, args.data );
+               if ( result >= 0 || errno != ENOENT )
+                       break;
+               pathChecks += 1;
+       }
+
+       if ( result < 0 ) {
+               error() << "failed to spawn " << progName << endl;
+               cleanExit( intermed, 1 );
+       }
+
+       if ( result > 0 )
+               cleanExit( intermed, 1 );
+}
+
 #endif
 
 void execFrontend( const char *argv0, char *inputFileName, char *intermed )
@@ -581,8 +600,7 @@ void execFrontend( const char *argv0, char *inputFileName, char *intermed )
        forkAndExec( progName, pathChecks, frontendArgs, intermed );
 #else
        char **pathChecks = makePathChecksWin( progName );
-       while ( *pathChecks != 0 )
-               cerr << *pathChecks++ << endl;
+       spawn( progName, pathChecks, frontendArgs, intermed );
 #endif
 }
 
@@ -616,8 +634,7 @@ void execBackend( const char *argv0, char *intermed, char *outputFileName )
        forkAndExec( progName, pathChecks, backendArgs, intermed );
 #else
        char **pathChecks = makePathChecksWin( progName );
-       while ( *pathChecks != 0 )
-               cerr << *pathChecks++ << endl;
+       spawn( progName, pathChecks, backendArgs, intermed );
 #endif
 }