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authorDavid Barr <david.barr@cordelta.com>2010-08-09 22:39:43 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-08-15 02:35:37 (GMT)
commit3bbaec00a8ffc6ea7e71c3b707851fe663d93a45 (patch)
tree5af41401b9e6764754058d4305a0d212190828b9 /test-line-buffer.c
parent1d73b52f5ba4184de6acf474f14668001304a10c (diff)
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Add stream helper library
This library provides thread-unsafe fgets()- and fread()-like functions where the caller does not have to supply a buffer. It maintains a couple of static buffers and provides an API to use them. [rr: allow input from files other than stdin] [jn: with tests, documentation, and error handling improvements] Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'test-line-buffer.c')
-rw-r--r--test-line-buffer.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/test-line-buffer.c b/test-line-buffer.c
new file mode 100644
index 0000000..c11bf7f
--- /dev/null
+++ b/test-line-buffer.c
@@ -0,0 +1,46 @@
+/*
+ * test-line-buffer.c: code to exercise the svn importer's input helper
+ *
+ * Input format:
+ * number NL
+ * (number bytes) NL
+ * number NL
+ * ...
+ */
+
+#include "git-compat-util.h"
+#include "vcs-svn/line_buffer.h"
+
+static uint32_t strtouint32(const char *s)
+{
+ char *end;
+ uintmax_t n = strtoumax(s, &end, 10);
+ if (*s == '\0' || *end != '\0')
+ die("invalid count: %s", s);
+ return (uint32_t) n;
+}
+
+int main(int argc, char *argv[])
+{
+ char *s;
+
+ if (argc != 1)
+ usage("test-line-buffer < input.txt");
+ if (buffer_init(NULL))
+ die_errno("open error");
+ while ((s = buffer_read_line())) {
+ s = buffer_read_string(strtouint32(s));
+ fputs(s, stdout);
+ fputc('\n', stdout);
+ buffer_skip_bytes(1);
+ if (!(s = buffer_read_line()))
+ break;
+ buffer_copy_bytes(strtouint32(s) + 1);
+ }
+ if (buffer_deinit())
+ die("input error");
+ if (ferror(stdout))
+ die("output error");
+ buffer_reset();
+ return 0;
+}