Clean up pg_test_fsync commit.

Actually rename the program, rather than just claiming we did.  Hook it
into the build system.  Get rid of useless dependency on libpq.  Clean up
#include list and messy whitespace.

contrib/Makefile

@@ -33,6 +33,7 @@ SUBDIRS = \
 		pg_freespacemap \
 		pg_standby	\
 		pg_stat_statements \
+		pg_test_fsync	\
 		pg_trgm		\
 		pg_upgrade	\
 		pg_upgrade_support \

contrib/README

@@ -30,7 +30,7 @@ adminpack -
 
 auth_delay
 	Add a short delay after a failed authentication attempt, to make
-    brute-force attacks on database passwords a bit harder.
+	brute-force attacks on database passwords a bit harder.
 	by KaiGai Kohei <kaigai@ak.jp.nec.com>
 
 auto_explain -
@@ -71,7 +71,7 @@ dict_xsyn -
 
 earthdistance -
 	Functions for computing distances between two points on Earth
-        by Bruno Wolff III <bruno@wolff.to> and Hal Snyder <hal@vailsys.com>
+	by Bruno Wolff III <bruno@wolff.to> and Hal Snyder <hal@vailsys.com>
 
 fuzzystrmatch -
 	Levenshtein, metaphone, and soundex fuzzy string matching
@@ -129,6 +129,10 @@ pg_stat_statements -
 	Track statement execution times across a whole database cluster
 	by Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>
 
+pg_test_fsync -
+	Test different wal_sync_method settings
+	by Bruce Momjian <bruce@momjian.us>
+
 pg_trgm -
 	Functions for determining the similarity of text based on trigram
 	matching.

contrib/pg_test_fsync/.gitignore

@@ -0,0 +1 @@
+/pg_test_fsync

contrib/pg_test_fsync/Makefile

@@ -1,22 +1,20 @@
 #
-# Makefile for test_fsync
+# Makefile for pg_test_fsync
 #
-# contrib/test_fsync/Makefile
+# contrib/pg_test_fsync/Makefile
 
-PGFILEDESC = "test_fsync - test various disk sync methods"
+PGFILEDESC = "pg_test_fsync - test various disk sync methods"
 PGAPPICON = win32
 
-PROGRAM  = test_fsync
-OBJS = test_fsync.o
-
-PG_LIBS = $(libpq_pgport)
+PROGRAM  = pg_test_fsync
+OBJS = pg_test_fsync.o
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config
 PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)
 else
-subdir = contrib/test_fsync
+subdir = contrib/pg_test_fsync
 top_builddir = ../..
 include $(top_builddir)/src/Makefile.global
 include $(top_srcdir)/contrib/contrib-global.mk

contrib/pg_test_fsync/pg_test_fsync.c

@@ -1,31 +1,27 @@
 /*
- *	test_fsync.c
+ *	pg_test_fsync.c
  *		tests all supported fsync() methods
  */
 
 #include "postgres.h"
 
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
 #include "getopt_long.h"
 #include "access/xlog_internal.h"
 #include "access/xlog.h"
 #include "access/xlogdefs.h"
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <string.h>
-
 
-/* 
+/*
  * put the temp files in the local directory
- * unless the user specifies otherwise 
+ * unless the user specifies otherwise
  */
-#define FSYNC_FILENAME	"./test_fsync.out"
+#define FSYNC_FILENAME	"./pg_test_fsync.out"
 
 #define WRITE_SIZE	(8 * 1024)	/* 8k */
 
@@ -54,23 +50,23 @@ int
 main(int argc, char *argv[])
 {
 	handle_args(argc, argv);
-	
+
 	prepare_buf();
 
 	test_open();
-	
+
 	/* Test using 1 8k write */
 	test_sync(1);
 
 	/* Test using 2 8k writes */
 	test_sync(2);
-	
+
 	test_open_syncs();
 
 	test_file_descriptor_sync();
-	
+
 	test_non_sync();
-	
+
 	unlink(filename);
 
 	return 0;
@@ -92,12 +88,12 @@ handle_args(int argc, char *argv[])
 		if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0 ||
 			strcmp(argv[1], "-?") == 0)
 		{
-			fprintf(stderr, "test_fsync [-f filename] [ops-per-test]\n");
+			fprintf(stderr, "pg_test_fsync [-f filename] [ops-per-test]\n");
 			exit(0);
 		}
 		if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
 		{
-			fprintf(stderr,"test_fsync " PG_VERSION "\n");
+			fprintf(stderr,"pg_test_fsync " PG_VERSION "\n");
 			exit(0);
 		}
 	}
@@ -114,11 +110,11 @@ handle_args(int argc, char *argv[])
 			case 'o':
 				ops_per_test = atoi(optarg);
 				break;
-				
+
 			default:
 				fprintf(stderr,
 					   "Try \"%s --help\" for more information.\n",
-					   "test_fsync");
+					   "pg_test_fsync");
 				exit(1);
 				break;
 		}
@@ -144,8 +140,8 @@ test_open(void)
 {
 	int			tmpfile;
 
-	/* 
-	 * test if we can open the target file 
+	/*
+	 * test if we can open the target file
 	 */
 	if ((tmpfile = open(filename, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR)) == -1)
 		die("Cannot open output file.");
@@ -164,7 +160,7 @@ test_sync(int writes_per_op)
 {
 	int			tmpfile, ops, writes;
 	bool		fs_warning = false;
-	
+
 	if (writes_per_op == 1)
 		printf("\nCompare file sync methods using one 8k write:\n");
 	else
@@ -279,10 +275,10 @@ test_sync(int writes_per_op)
 	gettimeofday(&stop_t, NULL);
 	close(tmpfile);
 	print_elapse(start_t, stop_t);
-	
+
 /*
  * If fsync_writethrough is available, test as well
- */	
+ */
 #ifdef HAVE_FSYNC_WRITETHROUGH
 	printf(LABEL_FORMAT, "fsync_writethrough");
 	fflush(stdout);
@@ -422,7 +418,7 @@ test_open_sync(const char *msg, int writes_size)
 		close(tmpfile);
 		print_elapse(start_t, stop_t);
 	}
-	
+
 #else
 	printf(NA_FORMAT, "open_sync", "n/a\n");
 #endif
@@ -444,8 +440,8 @@ test_file_descriptor_sync(void)
 	printf("(If the times are similar, fsync() can sync data written\n");
 	printf("on a different descriptor.)\n");
 
-	/* 
-	 * first write, fsync and close, which is the 
+	/*
+	 * first write, fsync and close, which is the
 	 * normal behavior without multiple descriptors
 	 */
 	printf(LABEL_FORMAT, "write, fsync, close");
@@ -477,8 +473,8 @@ test_file_descriptor_sync(void)
 	 * This simulates processes fsyncing each other's
 	 * writes.
 	 */
- 	printf(LABEL_FORMAT, "write, close, fsync");
- 	fflush(stdout);
+	printf(LABEL_FORMAT, "write, close, fsync");
+	fflush(stdout);
 
 	gettimeofday(&start_t, NULL);
 	for (ops = 0; ops < ops_per_test; ops++)
@@ -525,7 +521,7 @@ test_non_sync(void)
 	print_elapse(start_t, stop_t);
 }
 
-/* 
+/*
  * print out the writes per second for tests
  */
 void

doc/src/sgml/pgtestfsync.sgml

@@ -40,7 +40,7 @@ pg_test_fsync [options]
         This file should be in the same file system that the
         <filename>pg_xlog</> directory is or will be placed in.
         (<filename>pg_xlog</> contains the <acronym>WAL</> files.)
-        The default is <filename>test_fsync.out</> in the current
+        The default is <filename>pg_test_fsync.out</> in the current
         directory.
        </para>
       </listitem>