1 files changed, 60 insertions, 0 deletions
diff --git a/test/src/mbgl/test/ramdisk.cpp b/test/src/mbgl/test/ramdisk.cpp
new file mode 100644
index 0000000000..063c09954b
--- /dev/null
+++ b/test/src/mbgl/test/ramdisk.cpp
@@ -0,0 +1,60 @@
+#include <mbgl/test/ramdisk.hpp>
+
+#include <stdexcept>
+
+#include <cstring>
+
+namespace mbgl {
+namespace test {
+
+#if TEST_HAS_RAMDISK
+
+RamDisk::RamDisk(const size_t size) {
+    char executable[64];
+    snprintf(executable, sizeof executable, "test/scripts/ramdisk_darwin.sh %lu", size / 512);
+    if (!(child = popen(executable, "r+"))) {
+        throw std::runtime_error("Could not start child process");
+    }
+    write("\n");
+}
+
+void RamDisk::write(const char* command) {
+    const size_t length = strlen(command);
+    if (fwrite(command, 1, length, child) != length) {
+        throw std::runtime_error("Could not write to child process");
+    }
+    // Read lines until we get a line with a single NUL byte, which serves as command completion marker.
+    char line[256];
+    do {
+        if (!fgets(line, sizeof line, child)) {
+            throw std::runtime_error("Could not read from child process");
+        }
+    } while (strncmp(line, "\0\n", sizeof line) != 0);
+}
+
+void RamDisk::setReadOnly() {
+    write("readonly\n");
+}
+
+void RamDisk::setReadWrite() {
+    write("readwrite\n");
+}
+
+void RamDisk::fillDiskExceptFor(size_t remaining) {
+    char command[32];
+    snprintf(command, sizeof command, "filldisk %lu\n", remaining);
+    write(command);
+}
+
+void RamDisk::emptyDisk() {
+    write("emptydisk\n");
+}
+
+RamDisk::~RamDisk() {
+    pclose(child);
+}
+
+#endif // TEST_HAS_RAMDISK
+
+} // namespace test
+} // namespace mbgl