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Diffstat (limited to 'src/libstddjb/selfpipe_read.c')
-rw-r--r-- | src/libstddjb/selfpipe_read.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/libstddjb/selfpipe_read.c b/src/libstddjb/selfpipe_read.c new file mode 100644 index 0000000..b68e67d --- /dev/null +++ b/src/libstddjb/selfpipe_read.c @@ -0,0 +1,31 @@ +/* ISC license. */ + +/* MT-unsafe */ + +#include <skalibs/sysdeps.h> +#include <skalibs/allreadwrite.h> +#include "selfpipe-internal.h" +#include <skalibs/selfpipe.h> + +#ifdef SKALIBS_HASSIGNALFD + +#include <sys/signalfd.h> + +int selfpipe_read (void) +{ + struct signalfd_siginfo buf ; + register int r = sanitize_read(fd_read(selfpipe_fd, (char *)&buf, sizeof(struct signalfd_siginfo))) ; + return (r <= 0) ? r : (int)buf.ssi_signo ; +} + +#else + +int selfpipe_read (void) +{ + char c ; + register int r = sanitize_read((fd_read(selfpipe_fd, &c, 1))) ; + return (r <= 0) ? r : (int)c ; +} + +#endif + |