Move {read,write}_all functions to a dedicated header

Since these functions are used in both catgets/gencat.c and
malloc/memusage{,stat}.c, it make sense to move them into a dedicated
header where they can be inlined.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

2 files changed, 2 insertions, 60 deletions

diff --git a/malloc/memusage.c b/malloc/memusage.c
index 53a3630651..cd675e16a6 100644
--- a/malloc/memusage.c
+++ b/malloc/memusage.c
@@ -30,6 +30,7 @@
 #include <sys/mman.h>
 #include <sys/time.h>
 #include <unistd.h>
+#include <unistd_ext.h>
 
 #include <hp-timing.h>
 #include <machine-sp.h>
@@ -145,27 +146,6 @@ peak_atomic_max (_Atomic size_t *peak, size_t val)
   while (! atomic_compare_exchange_weak (peak, &v, val));
 }
 
-static void
-write_all (int fd, const void *buffer, size_t length)
-{
-  const char *p = buffer;
-  const char *end = p + length;
-  while (p < end)
-    {
-      ssize_t ret = write (fd, p, end - p);
-      if (ret < 0)
-	error (EXIT_FAILURE, errno,
-	       gettext ("write of %zu bytes failed after %td: %m"),
-	       length, p - (const char *) buffer);
-
-      if (ret == 0)
-	error (EXIT_FAILURE, 0,
-	       gettext ("write returned 0 after writing %td bytes of %zu"),
-	       p - (const char *) buffer, length);
-      p += ret;
-    }
-}
-
 /* Update the global data after a successful function call.  */
 static void
 update_data (struct header *result, size_t len, size_t old_len)
diff --git a/malloc/memusagestat.c b/malloc/memusagestat.c
index cc066d4af9..837b613c2b 100644
--- a/malloc/memusagestat.c
+++ b/malloc/memusagestat.c
@@ -29,6 +29,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <unistd_ext.h>
 #include <stdint.h>
 #include <sys/param.h>
 #include <sys/stat.h>
@@ -114,45 +115,6 @@ static int time_based;
 static int also_total = 0;
 
 
-static void
-read_all (int fd, void *buffer, size_t length)
-{
-  char *p = buffer;
-  char *end = p + length;
-  while (p < end)
-    {
-      ssize_t ret = read (fd, p, end - p);
-      if (ret < 0)
-	error (EXIT_FAILURE, errno,
-	       gettext ("read of %zu bytes failed after %td: %m"),
-	       length, p - (char *) buffer);
-
-      p += ret;
-    }
-}
-
-static void
-write_all (int fd, const void *buffer, size_t length)
-{
-  const char *p = buffer;
-  const char *end = p + length;
-  while (p < end)
-    {
-      ssize_t ret = write (fd, p, end - p);
-      if (ret < 0)
-	error (EXIT_FAILURE, errno,
-	       gettext ("write of %zu bytes failed after %td: %m"),
-	       length, p - (const char *) buffer);
-
-      if (ret == 0)
-	error (EXIT_FAILURE, 0,
-	       gettext ("write returned 0 after writing %td bytes of %zu"),
-	       p - (const char *) buffer, length);
-      p += ret;
-    }
-}
-
-
 int
 main (int argc, char *argv[])
 {