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authorThomas Huth <thuth@redhat.com>2016-10-11 17:19:36 +0200
committerDavid Gibson <david@gibson.dropbear.id.au>2016-10-14 10:06:47 +1100
commit3e353773721596971db2d0abc7015e7ea3d3af07 (patch)
tree595bb7eac2c389f95fc441d2e4a3958899fb22a0 /tests/boot-sector.h
parent1ef2ef96296f061c89b60e77c3c50577fd6fe415 (diff)
downloadqemu-3e353773721596971db2d0abc7015e7ea3d3af07.tar.gz
tests/boot-sector: Use mkstemp() to create a unique file name
The pxe-test is run for three different targets now (x86_64, i386 and ppc64), and the bios-tables-test is run for two targets (x86_64 and i386). But each of the tests is using an invariant name for the disk image with the boot sector code - so if the tests are running in parallel, there is a race condition that they destroy the disk image of a parallel test program. Let's use mkstemp() to create unique temporary files here instead - and since mkstemp() is returning an integer file descriptor instead of a FILE pointer, we also switch the fwrite() and fclose() to write() and close() instead. Reported-by: Sascha Silbe <x-qemu@se-silbe.de> Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'tests/boot-sector.h')
-rw-r--r--tests/boot-sector.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/boot-sector.h b/tests/boot-sector.h
index f64b477aa3..35d61c7e2b 100644
--- a/tests/boot-sector.h
+++ b/tests/boot-sector.h
@@ -14,8 +14,8 @@
#ifndef TEST_BOOT_SECTOR_H
#define TEST_BOOT_SECTOR_H
-/* Create boot disk file. */
-int boot_sector_init(const char *fname);
+/* Create boot disk file. fname must be a suitable string for mkstemp() */
+int boot_sector_init(char *fname);
/* Loop until signature in memory is OK. */
void boot_sector_test(void);