Returns the set of pending signals.
Syntax |
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#include <signal.h>
int sigpending (sigset_t *set);
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Parameters |
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- set
A pointer to a structure of type sigset_t that is to contain the signals that are blocked from delivery and pending for the calling process.
Return Values |
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- 0
Success.
- -1
An error occurred. No information is returned, and errno is set to indicate the error condition.
Description |
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The sigpending() function returns to set the set of signals that are blocked from delivery and pending for the calling process.
Implementation Considerations |
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Refer to the EFAULT error description below.
Signals that are both blocked and ignored for the calling process remain pending if generated for the process.
Errors |
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If an error occurs, errno is set to the following value:
| EFAULT | CAUSE | The system detected a NULL or bad address in attempting to use
the set parameter. |
| | ACTION | Make sure that the pointer is correctly initialized. |
See Also |
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sigprocmask(), <signal.h>, POSIX.1 (Section 3.3.6)
