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authorFlorian Weimer <fweimer@redhat.com>2020-02-18 13:44:48 +0100
committerFlorian Weimer <fweimer@redhat.com>2020-02-18 13:44:48 +0100
commit631cf64bc1d8306e011ef39f60b8cb6de91bd271 (patch)
tree719100a2b1098d6921ef74397b681de93efcfa95 /io/tst-file_change_detection.c
parentfa185f0d4529c6d70f690306f431ca23662b9138 (diff)
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Move implementation of <file_change_detection.h> into a C file
file_change_detection_for_stat partially initialize struct file_change_detection in some cases, when the size member alone determines the outcome of all comparisons. This results in maybe-uninitialized compiler warnings in case of sufficiently aggressive inlining. Once the implementation is moved into a separate C file, this kind of inlining is no longer possible, so the compiler warnings are gone.
Diffstat (limited to 'io/tst-file_change_detection.c')
-rw-r--r--io/tst-file_change_detection.c57
1 files changed, 27 insertions, 30 deletions
diff --git a/io/tst-file_change_detection.c b/io/tst-file_change_detection.c
index 035dd39c4d..6e00e787b1 100644
--- a/io/tst-file_change_detection.c
+++ b/io/tst-file_change_detection.c
@@ -16,10 +16,6 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-/* The header uses the internal __fileno symbol, which is not
- available outside of libc (even to internal tests). */
-#define __fileno(fp) fileno (fp)
-
#include <file_change_detection.h>
#include <array_length.h>
@@ -40,7 +36,7 @@ all_same (struct file_change_detection *array, size_t length)
{
if (test_verbose > 0)
printf ("info: comparing %zu and %zu\n", i, j);
- TEST_VERIFY (file_is_unchanged (array + i, array + j));
+ TEST_VERIFY (__file_is_unchanged (array + i, array + j));
}
}
@@ -54,7 +50,7 @@ all_different (struct file_change_detection *array, size_t length)
continue;
if (test_verbose > 0)
printf ("info: comparing %zu and %zu\n", i, j);
- TEST_VERIFY (!file_is_unchanged (array + i, array + j));
+ TEST_VERIFY (!__file_is_unchanged (array + i, array + j));
}
}
@@ -105,24 +101,24 @@ do_test (void)
struct file_change_detection fcd[10];
int i = 0;
/* Two empty files always have the same contents. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_empty1));
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_empty2));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_empty1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_empty2));
/* So does a missing file (which is treated as empty). */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++],
- path_does_not_exist));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++],
+ path_does_not_exist));
/* And a symbolic link loop. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_loop));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_loop));
/* And a dangling symbolic link. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_dangling));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_dangling));
/* And a directory. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], tempdir));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], tempdir));
/* And a symbolic link to an empty file. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_to_empty1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_to_empty1));
/* Likewise for access the file via a FILE *. */
- TEST_VERIFY (file_change_detection_for_fp (&fcd[i++], fp_empty1));
- TEST_VERIFY (file_change_detection_for_fp (&fcd[i++], fp_empty2));
+ TEST_VERIFY (__file_change_detection_for_fp (&fcd[i++], fp_empty1));
+ TEST_VERIFY (__file_change_detection_for_fp (&fcd[i++], fp_empty2));
/* And a NULL FILE * (missing file). */
- TEST_VERIFY (file_change_detection_for_fp (&fcd[i++], NULL));
+ TEST_VERIFY (__file_change_detection_for_fp (&fcd[i++], NULL));
TEST_COMPARE (i, array_length (fcd));
all_same (fcd, array_length (fcd));
@@ -132,9 +128,9 @@ do_test (void)
{
struct file_change_detection fcd[3];
int i = 0;
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_file1));
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_to_file1));
- TEST_VERIFY (file_change_detection_for_fp (&fcd[i++], fp_file1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_file1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_to_file1));
+ TEST_VERIFY (__file_change_detection_for_fp (&fcd[i++], fp_file1));
TEST_COMPARE (i, array_length (fcd));
all_same (fcd, array_length (fcd));
}
@@ -144,20 +140,20 @@ do_test (void)
struct file_change_detection fcd[5];
int i = 0;
/* The other files are not empty. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_empty1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_empty1));
/* These two files have the same contents, but have different file
identity. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_file1));
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_file2));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_file1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_file2));
/* FIFOs are always different, even with themselves. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_fifo));
- TEST_VERIFY (file_change_detection_for_path (&fcd[i++], path_fifo));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_fifo));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[i++], path_fifo));
TEST_COMPARE (i, array_length (fcd));
all_different (fcd, array_length (fcd));
/* Replacing the file with its symbolic link does not make a
difference. */
- TEST_VERIFY (file_change_detection_for_path (&fcd[1], path_to_file1));
+ TEST_VERIFY (__file_change_detection_for_path (&fcd[1], path_to_file1));
all_different (fcd, array_length (fcd));
}
@@ -166,16 +162,17 @@ do_test (void)
for (int use_stdio = 0; use_stdio < 2; ++use_stdio)
{
struct file_change_detection initial;
- TEST_VERIFY (file_change_detection_for_path (&initial, path_file1));
+ TEST_VERIFY (__file_change_detection_for_path (&initial, path_file1));
while (true)
{
support_write_file_string (path_file1, "line\n");
struct file_change_detection current;
if (use_stdio)
- TEST_VERIFY (file_change_detection_for_fp (&current, fp_file1));
+ TEST_VERIFY (__file_change_detection_for_fp (&current, fp_file1));
else
- TEST_VERIFY (file_change_detection_for_path (&current, path_file1));
- if (!file_is_unchanged (&initial, &current))
+ TEST_VERIFY (__file_change_detection_for_path
+ (&current, path_file1));
+ if (!__file_is_unchanged (&initial, &current))
break;
/* Wait for a bit to reduce system load. */
usleep (100 * 1000);