diff options
Diffstat (limited to 'lib/safe-write.h')
| -rw-r--r-- | lib/safe-write.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/safe-write.h b/lib/safe-write.h index 556fe29a7..42e598181 100644 --- a/lib/safe-write.h +++ b/lib/safe-write.h @@ -14,6 +14,19 @@ You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ +/* Some system calls may be interrupted and fail with errno = EINTR in the + following situations: + - The process is stopped and restarted (signal SIGSTOP and SIGCONT, user + types Ctrl-Z) on some platforms: MacOS X. + - The process receives a signal for which a signal handler was installed + with sigaction() with an sa_flags field that does not contain + SA_RESTART. + - The process receives a signal for which a signal handler was installed + with signal() and for which no call to siginterrupt(sig,0) was done, + on some platforms: AIX, HP-UX, IRIX, OSF/1, Solaris. + + This module provides a wrapper around write() that handles EINTR. */ + #include <stddef.h> #define SAFE_WRITE_ERROR ((size_t) -1) |