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Detach a handler function from a pulse code
#include <sys/iofunc.h>
#include <sys/dispatch.h>
int pulse_detach( dispatch_t * dpp,
int code,
int flags );
- dpp
- The dispatch handle, as returned by
dispatch_create().
- code
- The pulse code that you want to detach.
- flags
- Reserved; pass 0 for this argument.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The pulse_detach() function
detaches the pulse code,
for dispatch handle dpp,
that was attached with
pulse_attach().
- 0
- Success.
- -1
- The pulse code doesn't match any attached pulse code.
#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 flag=0, code, mycode;
if ( ( dpp = dispatch_create() ) == NULL ) {
fprintf( stderr, "%s: Unable to allocate \
dispatch handle.\n",argv[0] );
return EXIT_FAILURE;
}
…
if ( (code = pulse_attach( dpp, flag, mycode,
&my_func, NULL)) == -1 ) {
fprintf ( stderr, "Failed to attach pulse code %d.\n", \
mycode );
return 1;
}
…
if ( pulse_detach ( dpp, code, flag ) == -1 ) {
fprintf ( stderr, "Failed to detach code %d.\n", code );
return 1;
}
/* else message was detached */
…
}
For examples using the dispatch interface, see
dispatch_create(),
message_attach(),
resmgr_attach(), and
thread_pool_create().
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
message_detach(),
pulse_attach()
“Layers in a resource manager”
in the Bones of a Resource Manager chapter of Writing a Resource Manager
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