Initial revision

svn path=/trunk/; revision=1768

1 files changed, 101 insertions, 0 deletions

diff --git a/libibex/index.c b/libibex/index.c
new file mode 100644
index 0000000000..aef891182e
--- /dev/null
+++ b/libibex/index.c
@@ -0,0 +1,101 @@
+/*
+	Copyright 2000 Helix Code Inc.
+*/
+/* index.c: high-level indexing ops */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "ibex_internal.h"
+
+/* Index a file, given its name. (Replace any previously indexed contents
+ * of this file with the new contents.)
+ */
+int
+ibex_index_file(ibex *ib, char *filename)
+{
+  int fd;
+  int status;
+  struct stat st;
+
+  fd = open(filename, O_RDONLY);
+  if (fd < 0)
+    return -1;
+
+  if (fstat(fd, &st) == -1)
+    {
+      close(fd);
+      return -1;
+    }
+  if (!S_ISREG(st.st_mode))
+    {
+      close(fd);
+      errno = EINVAL;
+      return -1;
+    }
+
+  ibex_unindex(ib, filename);
+  status = ibex_index_fd(ib, filename, fd, st.st_size);
+  close(fd);
+  return status;
+}
+
+/* Given a file descriptor and a name to refer to it by, index LEN
+ * bytes of data from it.
+ */
+int
+ibex_index_fd(ibex *ib, char *name, int fd, size_t len)
+{
+  char *buf;
+  int off = 0, nread, status;
+
+  buf = g_malloc(len);
+  do
+    {
+      nread = read(fd, buf + off, len - off);
+      if (nread == -1)
+	{
+	  g_free(buf);
+	  return -1;
+	}
+      off += nread;
+    }
+  while (off != len);
+
+  status = ibex_index_buffer(ib, name, buf, len, NULL);
+  g_free(buf);
+
+  return status;
+}
+
+void
+ibex_unindex(ibex *ib, char *name)
+{
+  ibex_file *ibf;
+
+  ibf = g_tree_lookup(ib->files, name);
+  if (ibf)
+    {
+      ibf->index = -1;
+      g_tree_remove(ib->files, name);
+      g_ptr_array_add(ib->oldfiles, ibf);
+    }
+}
+
+void
+ibex_rename(ibex *ib, char *oldname, char *newname)
+{
+  ibex_file *ibf;
+
+  ibf = g_tree_lookup(ib->files, oldname);
+  if (ibf)
+    {
+      g_tree_remove(ib->files, oldname);
+      g_free(ibf->name);
+      ibf->name = g_strdup(newname);
+      g_tree_insert(ib->files, ibf->name, ibf);
+    }
+}