1 files changed, 115 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/iospeed.c b/winsup/testsuite/winsup.api/iospeed.c
new file mode 100644
index 000000000..d286f90bd
--- /dev/null
+++ b/winsup/testsuite/winsup.api/iospeed.c
@@ -0,0 +1,115 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <windows.h>
+
+int verbose = 0;
+
+void
+v(char *fmt, ...)
+{
+  va_list ap;
+  if (!verbose) return;
+  va_start(ap, fmt);
+  vfprintf(stdout, fmt, ap);
+  va_end(ap);
+}
+
+#define TSIZE (1024 * 1024 * 16)
+
+unsigned long start_tic;
+
+void
+start(FILE *f)
+{
+  fseek(f, 0, SEEK_SET);
+  start_tic = GetTickCount();
+}
+
+void
+end()
+{
+  unsigned long end_tic = GetTickCount();
+  printf("%6d", end_tic - start_tic);
+}
+
+void
+test(int linesz, int cr)
+{
+  FILE *f = fopen("iospeed.dat", "wb");
+  char buf[65536];
+  int i, fd;
+
+  memset(buf, 'x', linesz);
+  buf[linesz-1] = '\n';
+  if (cr)
+    buf[linesz-2] = '\r';
+  for (i=0; i<TSIZE; i += linesz)
+    fwrite(buf, 1, linesz, f);
+  fclose(f);
+
+  f = fopen("iospeed.dat", "rt");
+  fd = fileno(f);
+
+  printf("%6d%6d", linesz, cr);
+  for (i=0; i<TSIZE; i+= 65536)
+    read(fd, buf, 65536);
+
+  start(f);
+  while (getc(f) != EOF);
+  end();
+
+  start(f);
+  while (fread(buf, 1, 256, f) > 0);
+  end();
+
+  start(f);
+  while (fgets(buf, 64436, f));
+  end();
+
+  f = fopen("iospeed.dat", "rb");
+  fd = fileno(f);
+
+  for (i=0; i<TSIZE; i+= 65536)
+    read(fd, buf, 65536);
+
+  start(f);
+  while (getc(f) != EOF);
+  end();
+
+  start(f);
+  while (fread(buf, 1, 256, f) > 0);
+  end();
+
+  start(f);
+  while (fgets(buf, 64436, f));
+  end();
+
+  printf("\n");
+}
+
+int
+main(int argc, char **argv)
+{
+  if (argc > 1 && strcmp(argv[1],"-v") == 0)
+    verbose = 1;
+
+  setbuf(stdout, 0);
+
+  printf("              ----- text -----  ---- binary ----\n");
+  printf("linesz    cr  getc fread fgets  getc fread fgets\n");
+
+  test(4, 0);
+  test(64, 0);
+  test(4096, 0);
+  test(4, 1);
+  test(64, 1);
+  test(4096, 1);
+
+  remove ("iospeed.dat");
+
+  return 0;
+}