Updated: April 19, 2023 |
Detach a message range
#include <sys/iofunc.h> #include <sys/dispatch.h> int message_detach( dispatch_t * dpp, int low, int high, int flags );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The message_detach() function detaches the message type [low, high], for dispatch handle dpp, that was attached with message_attach().
Zero on success. If an error occurs, -1 or the following error constant:
#include <sys/dispatch.h> #include <time.h> #include <stdio.h> #include <stdlib.h> int my_func( … ) { … } int main( int argc, char **argv ) { dispatch_t *dpp; int lo=0x2000, hi=0x2fff, flags=0; if( ( dpp = dispatch_create() ) == NULL ) { fprintf( stderr, "%s: Unable to allocate dispatch handle.\n", argv[0] ); return EXIT_FAILURE; } … if( message_attach( dpp, NULL, lo, hi, &my_func, NULL) == -1 ) { fprintf( stderr, "%s: Failed to attach message range.\n", argv[0] ); return 1; } … if ( message_detach ( dpp, lo, hi, flags ) == -1 ) { fprintf ( stderr, "Failed to detach message range from %d to %d.\n", lo, hi ); return 1; } /* else message was detached */ … }
For examples using the dispatch interface, see dispatch_create(), message_attach(), resmgr_attach(), and thread_pool_create().
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |