windows-largefile-test-20060625

Large File test

diff --git a/src/WINNT/tests/largefiles/lftest.c b/src/WINNT/tests/largefiles/lftest.c
new file mode 100644 (file)
index 0000000..bf775e0
--- /dev/null
+++ b/src/WINNT/tests/largefiles/lftest.c
@@ -0,0 +1,169 @@
+#include <windows.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <process.h>
+
+char * teststr = "This is a test string.";
+
+
+
+void usage(void) {
+    fprintf(stderr, "lftest <path>\n");
+    exit(1);
+}
+
+int test_write(HANDLE hf, LARGE_INTEGER offset) {
+    DWORD dwWritten;
+    int ret = 0;
+
+    if (!LockFile(hf, offset.u.LowPart, offset.u.HighPart, 
+                  4096, 0)) {
+       fprintf(stderr, "Unable to lock offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       return -1;
+    }
+
+    if (!SetFilePointerEx(hf, offset, NULL, FILE_BEGIN)) {
+       fprintf(stderr, "Unable to set file pointer to offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+       goto unlock;
+    }
+
+    if (!WriteFile(hf, teststr, strlen(teststr)+1, &dwWritten, NULL)) {
+       fprintf(stderr, "Unable to write test string at offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+       goto unlock;
+    } else {
+       printf("wrote '%s' at offset 0x%08x:%08x\n", teststr, offset.u.HighPart, offset.u.LowPart);
+    }
+
+  unlock:
+    if (!UnlockFile(hf, offset.u.LowPart, offset.u.HighPart, 
+                  4096, 0)) {
+       fprintf(stderr, "Unable to unlock offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+    }
+
+#if 0
+    if (!FlushFileBuffers(hf)) {
+       fprintf(stderr, "Flush buffers fails at offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+    }
+#endif
+    return ret;
+}
+
+int test_read(HANDLE hf, LARGE_INTEGER offset) {
+    char buffer[256];
+    DWORD dwRead;
+    int ret = 0;
+
+    if (!LockFile(hf, offset.u.LowPart, offset.u.HighPart, 
+                  4096, 0)) {
+       fprintf(stderr, "Unable to lock offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       return -1;
+    }
+
+    if (!SetFilePointerEx(hf, offset, NULL, FILE_BEGIN)) {
+       fprintf(stderr, "Unable to set file pointer to offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+       goto unlock;
+    }
+
+    if (!ReadFile(hf, buffer, strlen(teststr)+1, &dwRead, NULL)) {
+       fprintf(stderr, "Unable to read test string at offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+       goto unlock;
+    } else {
+       printf("read '%s' (%d bytes) at offset 0x%08x:%08x\n", buffer, dwRead, offset.u.HighPart, offset.u.LowPart);
+    }
+
+    if (strcmp(buffer, teststr)) {
+       fprintf(stderr, "Test string comparison failure at offset 0x%08x:%08x\n", 
+                offset.u.HighPart, offset.u.LowPart);
+       ret = -1;
+       goto unlock;
+    }
+
+  unlock:
+    if (!UnlockFile(hf, offset.u.LowPart, offset.u.HighPart,
+                  4096, 0)) {
+       fprintf(stderr, "Unable to unlock offset 0x%08x:%08x gle = 0x%08x\n", 
+                offset.u.HighPart, offset.u.LowPart, GetLastError());
+       ret = -1;
+    }
+
+    return ret;
+}
+
+int 
+main(int argc, char *argv[]) {
+    HANDLE fh;
+    __int64 i;
+    char cmdline[512];
+    LARGE_INTEGER large;
+
+    if (argc == 1) 
+       usage();
+
+    if (!SetCurrentDirectory(argv[1])) {
+       fprintf(stderr, "unable to set directory to %s\n", argv[1]);
+       return 2;
+    }
+
+    fh = CreateFile("largefile.test", 
+                    GENERIC_READ | GENERIC_WRITE | STANDARD_RIGHTS_READ | STANDARD_RIGHTS_WRITE,
+                    FILE_SHARE_READ | FILE_SHARE_WRITE,
+                    NULL /* default security */,
+                    OPEN_ALWAYS,
+                    FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_WRITE_THROUGH,
+                    NULL );
+    
+    if (fh == INVALID_HANDLE_VALUE) {
+       fprintf(stderr, "unable to create/open the test file\n");
+       return 3;
+    }
+
+    for ( i=0; i<7; i++ ) {
+
+       large.QuadPart = i * (0x40000000-4);
+       test_write(fh, large);
+
+    }
+
+    CloseHandle(fh);
+
+    sprintf(cmdline, "fs.exe flushvolume %s", argv[1]);
+    system(cmdline);
+
+    fh = CreateFile("largefile.test", 
+                    GENERIC_READ | GENERIC_WRITE | STANDARD_RIGHTS_READ | STANDARD_RIGHTS_WRITE,
+                    FILE_SHARE_READ | FILE_SHARE_WRITE,
+                    NULL /* default security */,
+                    OPEN_ALWAYS,
+                    FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_WRITE_THROUGH,
+                    NULL );
+    
+    if (fh == INVALID_HANDLE_VALUE) {
+       fprintf(stderr, "unable to create/open the test file\n");
+       return 3;
+    }
+
+    for ( i=0; i<7; i++ ) {
+
+       large.QuadPart = i * (0x40000000-4);
+       test_read(fh, large);
+
+    }
+
+    CloseHandle(fh);
+
+    return 0;
+}