QNX Developer Support
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ND_NODE_CMP()
Compare two node descriptors
Synopsis:
#include <sys/netmgr.h> #define ND_NODE_CMP(a,b) ...
Arguments:
- a, b
- The node descriptors that you want to compare. You can use either the value 0 or ND_LOCAL_NODE to refer to the local node.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The ND_NODE_CMP() macro compares two node descriptors.
Returns:
- < 0
- The node descriptor a is less than b.
- 0
- The descriptors refer to the same machine.
- > 0
- The node descriptor a is greater than b.
Examples:
#include <sys/neutrino.h>
uint32_t nd1, nd2;
if ( ND_NODE_CMP(nd1, nd2) == 0 ) {
/* Same node */
...
} else {
/* Different nodes */
...
}
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | Yes |
| Signal handler | Yes |
| Thread | Yes |
See also:
netmgr_ndtostr(), netmgr_remote_nd(), netmgr_strtond()
Qnet Networking chapter of the Programmer's Guide
Qnet Networking chapter of the System Architecture guide
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