How can I execute the command line "asterisk -rx "reload"" in c++? Please help. I need an example. I am working on ubuntu server and I want to execute this command line from a user (inside a webservice).
Need help Appreciate
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1Did you really mean C++/CLI, of did you mis-interpret the tag [c++-cli] to mean "C++ command line interface"? Is there actually a C++/CLI implementation for Linux?celtschk– celtschk2012-01-12 09:07:03 +00:00Commented Jan 12, 2012 at 9:07
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2 Answers
Sounds like a trivial use-case for the system() function:
system("asterisk -rx reload");
If you need very fine-grained control of the child process there are better ways, but this is simple to get going.
This call starts a shell (such as bash) to run the command, which is why I removed the quotes around reload; they're pointless for a single word and will be removed by the shell and never seen by the started program, anyway.
4 Comments
dreamlax
This is good, an alternative method could be fork/exec to (requires more effort but more powerful overall)
Angel Dream
i tested it byt is not wkiring
Angel Dream
i have a web service on a server and i trying to call this method from the user but the asterisk is not reloading. why? need help plz
dreamlax
@AngelDream: The program that calls the
system function must have the correct privileges to execute the asterisk program. For example, if your program is running as a normal user, but asterisk requires a root user, then the system call will not work because the your program is not allowed to execute asterisk.system("asterisk -rx \"reload\"") would probably work, if you don't need standard output or error from the process.
If you need results from the process, here is an example of using C's popen(), or you could look at Boost.Process for a C++ approach.
