Add an execute action to an action, that will be executed if the corresponding action fails
#include <ha/ham.h> int ham_action_fail_execute( ham_action_t *ahdl, const char *aname, const char *path, unsigned flags);
libham
The ham_action_fail_execute() function adds an action fail item (aname) to the specified action. The action will execute an external program or command specified by path. The path parameter must contain the FULL path to the executable along with all parameters to be passed to it. along with all parameters to be passed to it. If either the pathname or the arguments contain spaces that need to be passed on literally to the spawn call, they need to be quoted. As long as the subcomponents within the path arguments are quoted, using either of the following methods:
\'path with space\'
or
\"path with space\",
the following is allowed:
"\'path with space\' arg1 arg2 \"arg3 with space\"".
This would be parsed as
"path with space" -> path arg1 = arg1 arg2 = arg2 arg3 = "arg3 with space".
The command line is in turn passed onto a spawn() command by the HAM to create a new process that will execute the command.
The handle (ahdl) is obtained either:
or:
The connection to the HAM is invalid. This happens when the process that opened the connection (using ham_connect()) and the process that's calling ham_action_execute() aren't the same.
In addition to the above errors, the HAM returns any error it encounters while servicing this request.
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |