A resource can be written into the target filesystem by calling
resource_fwrite or resource_fwrite_file. Such file can be created
before a test is started and removed after the test finishes.
Signed-off-by: Jan Viktorin <viktorin at rehivetech.com>
---
app/test/resource.c | 35 +++++++++++++++++++++++++++++++++++
app/test/resource.h | 14 ++++++++++++++
app/test/test_resource.c | 10 ++++++++++
3 files changed, 59 insertions(+)
diff --git a/app/test/resource.c b/app/test/resource.c
index 30513db..acb63c1 100644
--- a/app/test/resource.c
+++ b/app/test/resource.c
@@ -31,6 +31,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/queue.h>
@@ -60,6 +61,40 @@ const struct resource *resource_find(const char *name)
return NULL;
}
+int resource_fwrite(const struct resource *r, FILE *f)
+{
+ const size_t goal = resource_size(r);
+ size_t total = 0;
+
+ while (total < goal) {
+ size_t wlen = fwrite(r->begin + total, 1, goal - total, f);
+ if (wlen == 0) {
+ perror(__func__);
+ return -1;
+ }
+
+ total += wlen;
+ }
+
+ return 0;
+}
+
+int resource_fwrite_file(const struct resource *r, const char *fname)
+{
+ FILE *f;
+ int ret;
+
+ f = fopen(fname, "w");
+ if (f == NULL) {
+ perror(__func__);
+ return -1;
+ }
+
+ ret = resource_fwrite(r, f);
+ fclose(f);
+ return ret;
+}
+
void resource_register(struct resource *r)
{
TAILQ_INSERT_TAIL(&resource_list, r, next);
diff --git a/app/test/resource.h b/app/test/resource.h
index 966fc24..ac9cae6 100644
--- a/app/test/resource.h
+++ b/app/test/resource.h
@@ -45,6 +45,7 @@
*/
#include <sys/queue.h>
+#include <stdio.h>
#include <stddef.h>
#include <rte_eal.h>
@@ -75,6 +76,19 @@ size_t resource_size(const struct resource *r);
const struct resource *resource_find(const char *name);
/**
+ * Write the raw data of the resource to the given file.
+ * @return 0 on success
+ */
+int resource_fwrite(const struct resource *r, FILE *f);
+
+/**
+ * Write the raw data of the resource to the given file given by name.
+ * The name is relative to the current working directory.
+ * @return 0 on success
+ */
+int resource_fwrite_file(const struct resource *r, const char *fname);
+
+/**
* Register a resource in the global list of resources.
* Not intended for direct use, please check the REGISTER_RESOURCE
* macro.
diff --git a/app/test/test_resource.c b/app/test/test_resource.c
index b397fa8..3d1bf00 100644
--- a/app/test/test_resource.c
+++ b/app/test/test_resource.c
@@ -65,6 +65,7 @@ REGISTER_LINKED_RESOURCE(test_resource_c);
static int test_resource_c(void)
{
const struct resource *r;
+ FILE *f;
r = resource_find("test_resource_c");
TEST_ASSERT_NOT_NULL(r, "No test_resource_c found");
@@ -72,6 +73,15 @@ static int test_resource_c(void)
"Found resource %s, expected test_resource_c",
r->name);
+ TEST_ASSERT_SUCCESS(resource_fwrite_file(r, "test_resource.c"),
+ "Failed to to write file %s", r->name);
+
+ f = fopen("test_resource.c", "r");
+ TEST_ASSERT_NOT_NULL(f,
+ "Missing extracted file resource.c");
+ fclose(f);
+ remove("test_resource.c");
+
return 0;
}
--
2.8.0
