151 lines
4.5 KiB
C
151 lines
4.5 KiB
C
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#define MAX_WAIT_HANDLES MAXIMUM_WAIT_OBJECTS
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__cdecl
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main (c, v)
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int c;
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char *v[];
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{
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HANDLE hEvents[ 4 * MAX_WAIT_HANDLES ];
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char *EventNames[ 4 * MAX_WAIT_HANDLES ];
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char *s;
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ULONG nEvents, dwWaitResult;
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BOOLEAN fWaitAny = FALSE;
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BOOLEAN fWait = FALSE;
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BOOLEAN fVerbose = FALSE;
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BOOLEAN fUsage = TRUE;
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nEvents = 0;
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while (--c) {
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s = *++v;
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if (!_stricmp( s, "-a" )) {
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fWaitAny = TRUE;
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fWait = TRUE;
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}
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else
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if (!_stricmp( s, "-w" ))
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fWait = TRUE;
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else
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if (!_stricmp( s, "-v" ))
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fVerbose = TRUE;
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else
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if (nEvents == (4 * MAX_WAIT_HANDLES)) {
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fprintf( stderr, "CMDEVENT: Cant wait on more than %u events.\n",
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4 * MAX_WAIT_HANDLES
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);
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exit( -1 );
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}
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else {
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fUsage = FALSE;
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if (nEvents == MAX_WAIT_HANDLES && !fVerbose) {
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fprintf( stderr, "CMDEVENT: Waiting on more than %u events. Forcing -v\n",
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MAX_WAIT_HANDLES
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);
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fVerbose = TRUE;
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}
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{
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char *d;
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d = s;
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while (*d) {
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if (*d == '\\') {
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*d = '_';
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}
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d++;
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}
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}
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hEvents[ nEvents ] = fWait ? CreateEvent( NULL, TRUE, FALSE, s )
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: OpenEvent( EVENT_ALL_ACCESS, FALSE, s );
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if (hEvents[ nEvents ] == NULL) {
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fprintf( stderr, "CMDEVENT: Unable to %s event named '%s' - %u\n",
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fWait ? "create" : "open",
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s,
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GetLastError()
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);
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exit( -1 );
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break;
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}
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else
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if (!fWait) {
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if (!SetEvent( hEvents[ nEvents ] )) {
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fprintf( stderr, "CMDEVENT: Unable to signal event named '%s' - %u\n",
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s,
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GetLastError()
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);
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}
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}
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else {
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EventNames[ nEvents ] = s;
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nEvents += 1;
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}
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}
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}
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if (fUsage) {
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fprintf( stderr, "usage: CMDEVENT [-w] [-v] EventName(s)...\n" );
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exit( -1 );
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}
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else
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if (fWait) {
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if (fVerbose) {
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fprintf( stderr, "\nWaiting for %u events:", nEvents );
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fflush( stderr );
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}
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while (nEvents) {
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dwWaitResult = WaitForMultipleObjects( nEvents > MAX_WAIT_HANDLES ?
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MAX_WAIT_HANDLES :
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nEvents,
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hEvents,
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FALSE,
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INFINITE
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);
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if (dwWaitResult == WAIT_FAILED) {
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fprintf( stderr, "\nCMDEVENT: Unable to wait for event(s) - %u\n",
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GetLastError()
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);
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exit( -1 );
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}
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else
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if (dwWaitResult < nEvents) {
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CloseHandle( hEvents[ dwWaitResult ] );
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if (fVerbose) {
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fprintf( stderr, " %s", EventNames[ dwWaitResult ] );
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fflush( stderr );
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}
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if (fWaitAny) {
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exit( dwWaitResult+1 );
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}
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nEvents -= 1;
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if (dwWaitResult < nEvents) {
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memmove( &hEvents[ dwWaitResult ],
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&hEvents[ dwWaitResult+1 ],
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(nEvents - dwWaitResult + 1) * sizeof( hEvents[ 0 ] )
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);
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memmove( &EventNames[ dwWaitResult ],
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&EventNames[ dwWaitResult+1 ],
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(nEvents - dwWaitResult + 1) * sizeof( EventNames[ 0 ] )
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);
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}
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}
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}
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if (fVerbose) {
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fprintf( stderr, "\n" );
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}
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}
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exit( 0 );
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return( 0 );
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}
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