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146 lines
3.8 KiB
146 lines
3.8 KiB
package cookie;
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use strict;
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use lib $ENV{RAZZLETOOLPATH};
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use Win32::Event;
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use Win32::IPC;
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use Logmsg;
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# declare globals for this package
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my( $LogFile, $ScriptName, $Ext );
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$LogFile = $ENV{ "LOGFILE" };
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unless ( defined( $LogFile ) ) {
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$0 =~ /(.*)\.(.*?)$/;
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$ScriptName = $1;
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$Ext = "\L$2";
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if ( $Ext ne "log" ) { $LogFile = $ScriptName . ".log"; }
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else { $LogFile = $ScriptName . ".logfile"; }
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}
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return( 1 );
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#
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# CreateCookie( $CookieName )
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#
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# this routine will firstly query to make sure an event with the requested name
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# does not yet exist. if it doesn't, it attempts to create an event. upon
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# failure of either of these tasks, we log an error and return undef. upon
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# success, we return the event created.
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#
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sub CreateCookie
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{
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# get passed args
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my( $CookieName ) = @_;
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# declare locals
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my( $Event );
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# check to make sure we don't already have a cookie with this name
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if ( &QueryCookie( $CookieName ) ) {
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errmsg( "A cookie with name '$CookieName' already exists.",
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$LogFile );
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return( undef );
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}
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$Event = Win32::Event->new( 1, 0, $CookieName );
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unless ( defined( $Event ) ) {
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errmsg( "Failed to create cookie '$CookieName'.", $LogFile );
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return( undef );
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}
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# at this point, we've created our cookie.
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# just return the cookie name.
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return( $Event );
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}
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#
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# QueryCookie( $CookieName )
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#
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# this routine will simply query to see if a cookie with the given name already
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# exists. if so, we return the event. if not, we return undef.
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#
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sub QueryCookie
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{
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# get passed args
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my( $CookieName ) = @_;
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# declare locals
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my( $Event );
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$Event = Win32::Event->open( $CookieName );
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# at this point, if event is defined, we created the cookie. if not, we
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# didn't. so event is what we want to return.
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return( $Event );
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}
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#
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# KillCookie( $CookieName, $ForceKill )
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#
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# BUGBUG
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# perl does not support a kill for events! thus, we can't really kill an
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# event using the Win32::Event module. so instead, we just return undef.
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#
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# this routine will kill the cookie with the given name. if the $ForceKill
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# parameter is true (non-undef), it will not report errors attempting to kill
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# the cookie. if the kill succeeds, we return the cookie name, otherwise undef.
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#
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sub KillCookie
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{
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# get passed args
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my( $CookieName, $ForceKill ) = @_;
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# declare locals
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my( $ReturnCode );
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# BUGBUG
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# perl doesn't support a kill for events, so just return for now.
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return( undef );
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# close the event
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$ReturnCode = Win32::Event->close( $CookieName );
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if ( $ReturnCode != 0 ) {
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if ( ! ( defined( $ForceKill ) ) ) {
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errmsg( "Failed to kill cookie '$CookieName'.",
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$LogFile );
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}
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return( undef );
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}
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# we successfully killed the cookie, return the cookie name.
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return( $CookieName );
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}
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#
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# CreateCookieQuiet( $CookieName )
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#
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# this routine will firstly query to make sure an event with the requested name
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# does not yet exist. if it doesn't, it attempts to create an event. upon
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# failure of either of these tasks, we log an error and return undef. upon
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# success, we return the event created.
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#
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# this routine differs from CreateCookie in that it will not attempt any
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# logging.
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#
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sub CreateCookieQuiet
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{
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# get passed args
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my( $CookieName ) = @_;
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# declare locals
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my( $Event );
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# check to make sure we don't already have a cookie with this name
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if ( &QueryCookie( $CookieName ) ) {return( undef ); }
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$Event = Win32::Event->new( 1, 0, $CookieName );
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unless ( defined( $Event ) ) {return( undef ); }
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# at this point, we've created our cookie.
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# just return the cookie name.
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return( $Event );
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}
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