Guardian Programming Reference Summary for C
Functions Summary (A-C)
Guardian Programming Reference Summary for C—522630-001
4-10
return value:
BREAKMESSAGE_SEND_ 
Sends a break-on-device message to a specified process.
CANCEL 
Cancels the oldest incomplete operation on a file opened nowait.
CANCELPROCESSTIMEOUT 
Cancels a timer set by SIGNALPROCESSTIMEOUT.
0=No error.
4001 = Cannot lock. The semid parameter is not locked by the calling process. 
The corresponding OSS errno value is EPERM. 
4022 = Invalid parameter. The semid parameter does not identify a binary 
semaphore that is opened by the calling process. The corresponding OSS 
errno value is EINVAL.  
#include <cextdecs(BREAKMESSAGE_SEND_)>
short BREAKMESSAGE_SEND_ ( short *processhandle /* i */
  ,short receiver-filenum /* i */
  ,[ short *breaktag ] ); /* i */
#include <cextdecs(CANCEL)>
_cc_status CANCEL ( short filenum ); /* i */
_status_lt (<return_value>) An error occurred (call FILEINFO).
_status_eq (<return_value>) The operation was canceled.
#include <cextdecs(CANCELPROCESSTIMEOUT)>
_cc_status CANCELPROCESSTIMEOUT ( short tag ); /* i */
_status_eq (<return_value>) CANCELPROCESSTIMEOUT was successful.
_status_gt (<return_value>) The value of tag was invalid.










