summaryrefslogtreecommitdiffstats
path: root/tests/bugs/write-behind/bug-1058663.c
diff options
context:
space:
mode:
authorNiels de Vos <ndevos@redhat.com>2014-12-26 12:57:48 +0100
committerVijay Bellur <vbellur@redhat.com>2015-01-06 03:24:24 -0800
commit64954eb3c58f4ef077e54e8a3726fd2d27419b12 (patch)
tree52cd5a39bbfda7442a5f0955ac2800b74a45b58a /tests/bugs/write-behind/bug-1058663.c
parentc4ab37c02e9edc23d0637e23d6f2b42d0827dad2 (diff)
tests: move all test-cases into component subdirectories
There are around 300 regression tests, 250 being in tests/bugs. Running partial set of tests/bugs is not easy because this is a flat directory with almost all tests inside. It would be valuable to make partial test/bugs easier, and allow the use of mulitple build hosts for a single commit, each running a subset of the tests for a quicker result. Additional changes made: - correct the include path for *.rc shell libraries and *.py utils - make the testcases pass checkpatch - arequal-checksum in afr/self-heal.t was never executed, now it is - include.rc now complains loudly if it fails to find env.rc Change-Id: I26ffd067e9853d3be1fd63b2f37d8aa0fd1b4fea BUG: 1178685 Reported-by: Emmanuel Dreyfus <manu@netbsd.org> Reported-by: Atin Mukherjee <amukherj@redhat.com> URL: http://www.gluster.org/pipermail/gluster-devel/2014-December/043414.html Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9353 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Emmanuel Dreyfus <manu@netbsd.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'tests/bugs/write-behind/bug-1058663.c')
-rw-r--r--tests/bugs/write-behind/bug-1058663.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/tests/bugs/write-behind/bug-1058663.c b/tests/bugs/write-behind/bug-1058663.c
new file mode 100644
index 00000000000..5e522e98048
--- /dev/null
+++ b/tests/bugs/write-behind/bug-1058663.c
@@ -0,0 +1,119 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <signal.h>
+
+#define FILE_SIZE 1048576
+
+/* number of tests to run */
+#define RUN_LOOP 1000
+
+/* number of SIGBUS before exiting */
+#define MAX_SIGBUS 1
+static int expect_sigbus;
+static int sigbus_received;
+
+/* test for truncate()/seek()/write()/mmap()
+ * There should ne no SIGBUS triggered.
+ */
+void seek_write(char *filename)
+{
+ int fd;
+ uint8_t *map;
+ int i;
+
+ fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600);
+ lseek(fd, FILE_SIZE - 1, SEEK_SET);
+ write(fd, "\xff", 1);
+
+ map = mmap(NULL, FILE_SIZE, PROT_READ, MAP_PRIVATE, fd, 0);
+ for (i = 0; i < (FILE_SIZE - 1); i++) {
+ if (map[i] != 0) /* should never be true */
+ abort();
+ }
+ munmap(map, FILE_SIZE);
+
+ close(fd);
+}
+
+int read_after_eof(char *filename)
+{
+ int ret = 0;
+ int fd;
+ char *data;
+ uint8_t *map;
+
+ fd = open(filename, O_RDWR|O_CREAT|O_TRUNC, 0600);
+ lseek(fd, FILE_SIZE - 1, SEEK_SET);
+ write(fd, "\xff", 1);
+
+ /* trigger verify that reading after EOF fails */
+ ret = read(fd, data, FILE_SIZE / 2);
+ if (ret != 0)
+ return 1;
+
+ /* map an area of 1 byte after FILE_SIZE */
+ map = mmap(NULL, 1, PROT_READ, MAP_PRIVATE, fd, FILE_SIZE);
+ /* map[0] is an access after EOF, it should trigger SIGBUS */
+ if (map[0] != 0)
+ /* it is expected that we exit before we get here */
+ if (!sigbus_received)
+ return 1;
+ munmap(map, FILE_SIZE);
+
+ close(fd);
+
+ return ret;
+}
+
+/* signal handler for SIGBUS */
+void catch_sigbus(int signum)
+{
+ switch (signum) {
+#ifdef __NetBSD__
+ /* Depending on architecture, we can get SIGSEGV */
+ case SIGSEGV: /* FALLTHROUGH */
+#endif
+ case SIGBUS:
+ sigbus_received++;
+ if (!expect_sigbus)
+ exit(EXIT_FAILURE);
+ if (sigbus_received >= MAX_SIGBUS)
+ exit(EXIT_SUCCESS);
+ break;
+ default:
+ printf("Unexpected signal received: %d\n", signum);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ int i = 0;
+
+ if (argc == 1) {
+ printf("Usage: %s <filename>\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+
+#ifdef __NetBSD__
+ /* Depending on architecture, we can get SIGSEGV */
+ signal(SIGSEGV, catch_sigbus);
+#endif
+ signal(SIGBUS, catch_sigbus);
+
+ /* the next test should not trigger SIGBUS */
+ expect_sigbus = 0;
+ for (i = 0; i < RUN_LOOP; i++) {
+ seek_write(argv[1]);
+ }
+
+ /* the next test should trigger SIGBUS */
+ expect_sigbus = 1;
+ if (read_after_eof(argv[1]))
+ return EXIT_FAILURE;
+
+ return EXIT_SUCCESS;
+}