3 files changed, 96 insertions, 0 deletions
diff --git a/src/util/efunc.h b/src/util/efunc.h
new file mode 100644
index 0000000..03d1609
--- /dev/null
+++ b/src/util/efunc.h
@@ -0,0 +1,74 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define eexecvp(F, ...) (execvp(F, __VA_ARGS__), eprintf("exec %s:", F))
+#define eexeclp(F, ...) (execlp(F, __VA_ARGS__), eprintf("exec %s:", F))
+
+static inline void
+epipe(int fds[2])
+{
+	if (pipe(fds))
+		eprintf("pipe:");
+}
+
+static inline pid_t
+efork(void)
+{
+	pid_t ret = fork();
+	if (ret < 0)
+		eprintf("fork:");
+	return ret;
+}
+
+static inline void
+edup2(int old, int new)
+{
+	if (dup2(old, new) < 0)
+		eprintf("dup2:");
+}
+
+static inline int
+edup(int fd)
+{
+	int ret = dup(fd);
+	if (ret < 0)
+		eprintf("dup:");
+	return ret;
+}
+
+static inline pid_t
+ewaitpid(pid_t pid, int *status, int flags)
+{
+	pid_t ret = waitpid(pid, status, flags);
+	if (ret < 0)
+		eprintf("waitpid:");
+	return ret;
+}
+
+static inline size_t
+eread(int fd, void *buf, size_t n, const char *fname)
+{
+	ssize_t ret = read(fd, buf, n);
+	if (ret < 0)
+		eprintf("read %s:", fname);
+	return (size_t)ret;
+}
+
+static inline size_t
+epread(int fd, void *buf, size_t n, off_t off, const char *fname)
+{
+	ssize_t ret = pread(fd, buf, n, off);
+	if (ret < 0)
+		eprintf("pread %s:", fname);
+	return (size_t)ret;
+}
+
+static inline off_t
+elseek(int fd, off_t offset, int whence, const char *fname)
+{
+	off_t ret = lseek(fd, offset, whence);
+	if (ret < 0)
+		eprintf("lseek %s:", fname);
+	return ret;
+}
diff --git a/src/util/io.h b/src/util/io.h
index 44e222d..8c646cb 100644
--- a/src/util/io.h
+++ b/src/util/io.h
@@ -1,4 +1,17 @@
 /* See LICENSE file for copyright and license details. */
+#include <fcntl.h>
+
+#if defined(POSIX_FADV_SEQUENTIAL)
+# define fadvise_sequential(...)  posix_fadvise(__VA_ARGS__, POSIX_FADV_SEQUENTIAL)
+#else
+# define fadvise_sequential(...)
+#endif
+
+#if defined(POSIX_FADV_RANDOM)
+# define fadvise_random(...)  posix_fadvise(__VA_ARGS__, POSIX_FADV_RANDOM)
+#else
+# define fadvise_random(...)
+#endif
 
 #define ewriteall(...)     enwriteall(1, __VA_ARGS__)
 #define ereadall(...)      enreadall(1, __VA_ARGS__)
diff --git a/src/util/jobs.h b/src/util/jobs.h
index d45433c..9accf84 100644
--- a/src/util/jobs.h
+++ b/src/util/jobs.h
@@ -1,4 +1,13 @@
 /* See LICENSE file for copyright and license details. */
+#if defined(HAVE_PRCTL)
+# include <sys/prctl.h>
+#endif
+
+#if defined(HAVE_PRCTL) && defined(PR_SET_PDEATHSIG)
+# define pdeath(SIGNAL) prctl(PR_SET_PDEATHSIG, SIGNAL);
+#else
+# define pdeath(SIGNAL)
+#endif
 
 #define efork_jobs(...) enfork_jobs(1, __VA_ARGS__)
 #define ejoin_jobs(...) enjoin_jobs(1, __VA_ARGS__)