Difference between revisions of "cpp/utility/program/raise"
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{{cpp/title| raise}} | {{cpp/title| raise}} | ||
| − | {{cpp/utility/program/ | + | {{cpp/utility/program/navbar}} |
{{ddcl | header=csignal | | {{ddcl | header=csignal | | ||
int raise( int sig ); | int raise( int sig ); | ||
}} | }} | ||
| − | Sends signal sig to the program. The signal handler | + | Sends signal sig to the program. The signal handler (specified using the {{lc|std::signal()}} function) is invoked. |
| − | If the user-defined signal handling strategy is not set using {{ | + | If the user-defined signal handling strategy is not set using {{lc|std::signal()}} yet, it is implementation-defined whether the signal will be ignored or default handler will be invoked. |
===Parameters=== | ===Parameters=== | ||
| − | {{ | + | {{par begin}} |
| − | {{ | + | {{par | sig | the signal to be sent. It can be an implementation-defined value or one of the following values: |
| − | {{ | + | {{dsc begin}} |
| − | {{ | + | {{dsc inc | cpp/utility/program/dsc SIG_types}} |
| − | {{ | + | {{dsc end}} |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
}} | }} | ||
| − | {{ | + | {{par end}} |
===Return value=== | ===Return value=== | ||
| Line 29: | Line 24: | ||
{{example | {{example | ||
| | | | ||
| + | | p=true | ||
| code= | | code= | ||
| + | #include <csignal> | ||
| + | #include <iostream> | ||
| + | |||
| + | void signal_handler(int signal) | ||
| + | { | ||
| + | std::cout << "Received signal " << signal << '\n'; | ||
| + | } | ||
| + | |||
| + | int main() | ||
| + | { | ||
| + | // Install a signal handler | ||
| + | std::signal(SIGTERM, signal_handler); | ||
| + | |||
| + | std::cout << "Sending signal " << SIGTERM << '\n'; | ||
| + | std::raise(SIGTERM); | ||
| + | } | ||
| output= | | output= | ||
| + | Sending signal 15 | ||
| + | Received signal 15 | ||
}} | }} | ||
===See also=== | ===See also=== | ||
| − | {{ | + | {{dsc begin}} |
| − | {{ | + | {{dsc inc | cpp/utility/program/dsc signal}} |
| − | {{ | + | {{dsc see c | c/program/raise}} |
| − | {{ | + | {{dsc end}} |
| + | [[de:cpp/utility/program/raise]] | ||
| + | [[es:cpp/utility/program/raise]] | ||
[[fr:cpp/utility/program/raise]] | [[fr:cpp/utility/program/raise]] | ||
| + | [[it:cpp/utility/program/raise]] | ||
[[ja:cpp/utility/program/raise]] | [[ja:cpp/utility/program/raise]] | ||
| + | [[pt:cpp/utility/program/raise]] | ||
| + | [[ru:cpp/utility/program/raise]] | ||
[[zh:cpp/utility/program/raise]] | [[zh:cpp/utility/program/raise]] | ||
Latest revision as of 07:53, 15 August 2013
| Defined in header <csignal>
|
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| int raise( int sig ); |
||
Sends signal sig to the program. The signal handler (specified using the std::signal() function) is invoked.
If the user-defined signal handling strategy is not set using std::signal() yet, it is implementation-defined whether the signal will be ignored or default handler will be invoked.
Contents |
[edit] Parameters
| sig | - | the signal to be sent. It can be an implementation-defined value or one of the following values:
|
[edit] Return value
0 upon success, non-zero value on failure.
[edit] Example
Run this code
Possible output:
Sending signal 15 Received signal 15
[edit] See also
| sets a signal handler for particular signal (function) | |
| C documentation for raise
| |
