| Defined in header <signal.h> | ||||
|---|---|---|---|---|
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Sends signal sig to the program. The signal handler, specified using signal(), is invoked.
If the user-defined signal handling strategy is not set using signal() yet, it is implementation-defined whether the signal will be ignored or default handler will be invoked.
Parameters
| sig | - | the signal to be sent. It can be an implementation-defined value or one of the following values:
|
Return value
0 upon success, non-zero value on failure.
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #include <signal.h>#include <stdio.h> void signal_handler(int signal){ printf("Received signal %d\n", signal);} int main(void){ // Install a signal handler. signal(SIGTERM, signal_handler); printf("Sending signal %d\n", SIGTERM); raise(SIGTERM); printf("Exit main()\n");} |
Output:
1 2 3 | Sending signal 15Received signal 15Exit main() |
References
- C11 standard (ISO/IEC 9899:2011):
- 7.14.2.1 The raise function (p: 267)
- C99 standard (ISO/IEC 9899:1999):
- 7.14.2.1 The raise function (p: 248)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.7.2.1 The raise function
See also
| sets a signal handler for particular signal (function) | |
C++ documentation for raise | |
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