raise(3) - Linux manual page (original) (raw)

raise(3) Library Functions Manual raise(3)

NAME top

   raise - send a signal to the caller

LIBRARY top

   Standard C library (_libc_, _-lc_)

SYNOPSIS top

   **#include <signal.h>**

   **int raise(int** _sig_**);**

DESCRIPTION top

   The **raise**() function sends a signal to the calling process or
   thread.  In a single-threaded program it is equivalent to

       kill(getpid(), sig);

   In a multithreaded program it is equivalent to

       pthread_kill(pthread_self(), sig);

   If the signal causes a handler to be called, **raise**() will return
   only after the signal handler has returned.

RETURN VALUE top

   **raise**() returns 0 on success, and nonzero for failure.

ATTRIBUTES top

   For an explanation of the terms used in this section, see
   [attributes(7)](../man7/attributes.7.html).
   ┌──────────────────────────────────────┬───────────────┬─────────┐
   │ **Interface** │ **Attribute** │ **Value** │
   ├──────────────────────────────────────┼───────────────┼─────────┤
   │ **raise**()                              │ Thread safety │ MT-Safe │
   └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

   C11, POSIX.1-2008.

HISTORY top

   POSIX.1-2001, C89.

   Since glibc 2.3.3, **raise**() is implemented by calling [tgkill(2)](../man2/tgkill.2.html), if
   the kernel supports that system call.  Older glibc versions
   implemented **raise**() using [kill(2)](../man2/kill.2.html).

SEE ALSO top

   [getpid(2)](../man2/getpid.2.html), [kill(2)](../man2/kill.2.html), [sigaction(2)](../man2/sigaction.2.html), [signal(2)](../man2/signal.2.html), [pthread_kill(3)](../man3/pthread%5Fkill.3.html),
   [signal(7)](../man7/signal.7.html)

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Linux man-pages 6.10 2024-07-23 raise(3)

Pages that refer to this page:sigaction(2), signal(2), sigprocmask(2), abort(3), gsignal(3), pthread_kill(3), sigset(3), sigvec(3), signal(7), signal-safety(7)